| 'P' Companies (1057) | Period (Timeline) | Item #: Game | Item #: Non-Game |
|---|---|---|---|
| P & M Coin | 1985 (1 year) | ||
| P Shoukai Soft. [Japan] | |||
| P&A [Japan] | |||
| P&A Games | |||
| P&A Soft. [Sydney, Australia] | 1986 (1 year) | ||
| P&E Coin Games | |||
| P&E Technologies, Inc. [Atlantic Highlands, NJ, USA] | |||
| P&M Soft. | 1984 (1 year) | ||
| P&P Marketing, Inc. [Chicago, IL, USA] | 1991 to 1998 (8 years) | ||
| P-1 | 1990 (1 year) | ||
| P-Data | |||
| P. & S. Machine Co. [Chicago, IL, USA] | 1947 (1 year) | ||
| P. & T. Club Equipment Co. [Kansas City, MO, USA] | 1935 (1 year) | ||
| P. Boulton Soft. | 1983 (1 year) | ||
| P.Pink.Pot | 1995 (1 year) | ||
| P3 Multimorphic Pinball | 2022 (1 year) | ||
| PA Corp. | 1991 (1 year) | ||
| PA Games | 2020 (1 year) | ||
| PabaGames | 1997 (1 year) | ||
| Pacchiarotti, Mario | 1984 (1 year) | ||
| PACE | 1983 to 1986 (4 years) | ||
| Pace Mfg. Co. [Chicago, IL, USA] | 1926 to 1948 (23 years) | ||
| Pacent Novelty Mfg. Co. [Utica, NY, USA] | 1936 (1 year) | ||
| Paces Races, Inc. [Chicago, IL, USA] | 1935 to 1938 (4 years) | ||
| Pacific | 1995 (1 year) | ||
| Pacific Amusement Co. [Thousand Oaks, CA, USA] | 1965 (1 year) | ||
| Pacific Amusement Mfg. Co. [Los Angeles, CA, USA] | 1930 (1 year) | ||
| Pacific Bowling Co. [Los Angeles, CA, USA] | 1950 (1 year) | ||
| Pacific Electrical Works [San Francisco, CA, USA] | 1895 (1 year) | ||
| Pacific Electron Products Corp. [Long Beach, CA, USA] | |||
| Pacific Games [Tokyo, Japan] | 1988 (1 year) | ||
| Pacific Gaming Pty, Ltd. | 1995 (1 year) | ||
| Pacific Micro Systems | 1982 (1 year) | ||
| Pacific Novelty Mfg., Inc. [Marina Del Rey, CA, USA] | 1981 to 1982 (2 years) | ||
| Pacific Polytechnical Corp. | 1982 (1 year) | ||
| Pacific Shuffleboard Co. [Los Angeles, CA, USA] | 1949 (1 year) | ||
| Pacific Soft. | 1984 (1 year) | ||
| Pack In Soft. [Japan] | 1996 to 1999 (4 years) | ||
| Pack-In-Video Co., Ltd. [Japan] | 1985 to 2000 (16 years) | ||
| Packard Mfg. Co. [Indianapolis, IN, USA] | 1946 to 1949 (4 years) | ||
| Packel Instrument | 1976 (1 year) | ||
| Packen Soft. [Japan] | 1995 (1 year) | ||
| Packobilly | 2020 to 2022 (3 years) | ||
| Packrat Video Games, LLC | 1996 to 2007 (12 years) | ||
| PacManPlus | 2010 (1 year) | ||
| Paco Crew, The | 1987 (1 year) | ||
| Pacom Corp. [Japan] | 1979 (1 year) | ||
| PacSoft | |||
| Pactronics | 1987 to 1991 (5 years) | ||
| Pactum [Spain] | 1989 (1 year) | ||
| Padua | 1987 to 2008 (22 years) | ||
| PAEAN Systems | 1983 (1 year) | ||
| Paensian Taiwan Ltd. | 1991 (1 year) | ||
| Page Mfg. Co. [Chicago, IL, USA] | 1909 (1 year) | ||
| Page Soft. | 1984 (1 year) | ||
| Page, Robert W. [London, England] | 1886 (1 year) | ||
| Page, Ryan | 1989 (1 year) | ||
| Pagesoft | 1984 (1 year) | ||
| Paget Press | 1991 (1 year) | ||
| Pai | 1996 to 1998 (3 years) | ||
| Paillard Vaucher Frères [Ste. Croix, Swizerland] | 1890 to 1910 (21 years) | ||
| Paint-A-Ball Co., Ltd., The [Los Angeles, CA, USA] | 1931 (1 year) | ||
| Pajitnov, Alexey | 1984 (1 year) | ||
| PAL Co. | |||
| Pal Kyouiku System [Japan] | 1993 (1 year) | ||
| PAL Soft. | 1984 (1 year) | ||
| PAL System [Osaka, Japan] | 1993 to 2002 (10 years) | ||
| Palace [Japan] | 2011 (1 year) | ||
| Palace Soft. [013518] | 1984 to 1991 (8 years) | ||
| Paladin Systems North | 1993 to 2011 (19 years) | ||
| Palamedes Sales Co., Inc. [Fort Wayne, IN, USA] | 1933 (1 year) | ||
| Palco System Corp. | 1991 (1 year) | ||
| Palcom [Japan] | 1983 to 1987 (5 years) | ||
| Palcom Soft., Ltd. | 1989 to 1993 (5 years) | ||
| Palesar | 1986 (1 year) | ||
| Palese Group [Italy] | 2010 (1 year) | ||
| Palitoy [Palectronics] | |||
| Palladium Label | 1996 to 1997 (2 years) | ||
| Palm Computing | 1998 to 1999 (2 years) | ||
| Palm Tree Soft. [Japan] | 1993 to 1994 (2 years) | ||
| Palm, Inc. | 1998 to 2005 (8 years) | ||
| Palmer & Hartley [Birmingham, England] | 1899 to 1901 (3 years) | ||
| Palmer Berge Co, Inc. | |||
| Palmers Automatic Machine Syndicate [Birmingham, England] | 1899 (1 year) | ||
| Palmtex [CA, USA] | 1983 (1 year) | ||
| Palo Alto ICs, Inc. | 1979 to 1980 (2 years) | ||
| Palomax | 1991 (1 year) | ||
| Palsoft | 1991 to 1992 (2 years) | ||
| Palson | 1979 to 1982 (4 years) | ||
| PAMCO [Pacific Amusement Mfg. Co.] [Chicago, IL, USA] | 1932 to 1939 (8 years) | ||
| Pamcomms | 1983 to 1987 (5 years) | ||
| Pan Amusements | |||
| Pan Books | 1983 to 1986 (4 years) | ||
| Pan Coast Amusement Co. [NY, USA] | 1944 to 1946 (3 years) | ||
| PAN Vision AB | 2003 to 2012 (10 years) | ||
| Pan-Q Soft. [Japan] | |||
| Pana Enterprise Mfg. Co. [Pana, IL, USA] | 1907 (1 year) | ||
| Panac | 1988 (1 year) | ||
| Panacom [Brazil] | 1987 (1 year) | ||
| Panafacom | 1983 (1 year) | ||
| Panasoft | 1985 to 1988 (4 years) | ||
| Panasonic [Japan] | 1981 to 1998 (18 years) | ||
| Panda Design | 2005 to 2011 (7 years) | ||
| Panda Discs | 1989 to 1990 (2 years) | ||
| Panda Ent. Technology | 1993 to 1995 (3 years) | ||
| Panda GmbH [Germany] | 1965 to 1968 (4 years) | ||
| Panda Learning Systems | 1985 (1 year) | ||
| Panda Soft. | 1982 to 1987 (6 years) | ||
| Panda, Inc. [Charlotte, NC, USA] | 1983 (1 year) | ||
| Pandevant & Roy, A. [France] | 1928 (1 year) | ||
| Pandora | 1991 to 1993 (3 years) | ||
| Pandora Box [Japan] | 1991 to 2001 (11 years) | ||
| Pandora Soft. | 1985 to 1999 (15 years) | ||
| Panek, J. | 1973 (1 year) | ||
| Pangea Soft. | 1989 to 2000 (12 years) | ||
| Panic Production | 1993 (1 year) | ||
| Panic Soft. [Spain] | 1990 (1 year) | ||
| Panic Studio | 1993 (1 year) | ||
| Panochi Games | 2014 (1 year) | ||
| Panoramic | 1973 (1 year) | ||
| Panoramic Designs | 1989 to 1993 (5 years) | ||
| Pansy Gum | |||
| Pantages [USA] | 1946 (1 year) | ||
| Pantech Net [Korea] | 1995 to 1997 (3 years) | ||
| Panther | 1993 to 2007 (15 years) | ||
| Panther Games | 1989 to 1991 (3 years) | ||
| Panther Soft. [Japan] | 1988 to 1999 (12 years) | ||
| Panzerdog | 2019 (1 year) | ||
| Paokai Electronic Enterprise Co., Ltd. [Taiwan] | 2003 to 2011 (9 years) | ||
| Paon Corp., Ltd. [Japan] | 2010 to 2013 (4 years) | ||
| Papermac | 1983 (1 year) | ||
| Papillon Soft. | 1983 (1 year) | ||
| Papp, László | 2008 (1 year) | ||
| Papyrus Publishing, Inc. | 1993 (1 year) | ||
| Para [Paradise of Amusement] | 1994 to 2008 (15 years) | ||
| PARA Enterprises | 2000 (1 year) | ||
| Paradais Electronics Co., Ltd. [Japan] | 1984 (1 year) | ||
| Paradigm Simulation | |||
| Paradise Denshi, Ltd. | 1981 (1 year) | ||
| Paradise Science & Technology | 1997 (1 year) | ||
| Paradise Soft. | 1986 (1 year) | ||
| Parados | 1990 to 1992 (3 years) | ||
| Paradox | 1991 to 1992 (2 years) | ||
| Paradox Group | 1982 to 1984 (3 years) | ||
| Paradox Interactive | 2000 to 2018 (19 years) | ||
| Paradox Soft., Ltd. | 1986 (1 year) | ||
| Paragon | 1987 to 1991 (5 years) | ||
| Paragon [Japan] | 1994 (1 year) | ||
| Paragon Publishing | 1994 to 1996 (3 years) | ||
| Paragon Soft. | 1985 to 1994 (10 years) | ||
| Parallax | 1990 (1 year) | ||
| Parallax Publishing | 1992 to 1993 (2 years) | ||
| Parallel Systems | 1982 to 1984 (3 years) | ||
| Parametrics, Inc. | |||
| Paramount | 1983 to 2008 (26 years) | ||
| Paramount Game Co., Inc. [Brooklyn, NY, USA] | 1928 (1 year) | ||
| Paramount Soft. | 1983 to 1984 (2 years) | ||
| Paramount Vending Corp. [Chicago, IL, USA] | 1938 (1 year) | ||
| Paranoia | 1991 to 2001 (11 years) | ||
| Paranormal Federation, The | 1988 to 1992 (5 years) | ||
| Parasite | 1992 to 1994 (3 years) | ||
| Parberry, Ian | 1975 (1 year) | ||
| Pardue Novelty Co. [Chicago, IL, USA] | 1936 (1 year) | ||
| Paredes, S.A. | |||
| Parganasch | 1972 (1 year) | ||
| Pargner, W.L. [Munich, Germany] | 1950 (1 year) | ||
| Paris Soft., Jimmy | 1991 (1 year) | ||
| Park | 1986 (1 year) | ||
| Park Leasing | |||
| Park Novelty Co. [Kalamazoo, MI, USA] | 1903 (1 year) | ||
| Park Place Productions | 1993 (1 year) | ||
| Parker Bros. [Beverly, MA, USA] | 1977 to 1996 (20 years) | ||
| Parker Co., E.D. [Springfield, OH, USA] | 1904 (1 year) | ||
| Parker Mfg. Co. [John J. Parker] | 1966 to 1975 (10 years) | ||
| Parker Pencil Co. [USA] | 1927 (1 year) | ||
| Parker Soft. | 1984 (1 year) | ||
| Parker, Clinton William | 1978 to 1982 (5 years) | ||
| Parker, Larry | 1992 (1 year) | ||
| Parker, Robert | 1989 to 1995 (7 years) | ||
| Parker, W.F. [Oxford, PA, USA] | 1896 (1 year) | ||
| Parkhurst Bros. & Co. [Indianapolis, IN, USA] | 1897 (1 year) | ||
| Parkhurst, Paul | 1992 (1 year) | ||
| Parkin, V. | |||
| Parks, Brian | 1987 (1 year) | ||
| Parloc Service, Inc. [Indianapolis, IN, USA] | 1926 (1 year) | ||
| Parmly Engineering Co. [Cleveland, OH, USA] | 1931 to 1932 (2 years) | ||
| Parrello, Bruce | |||
| Parrish Corp., The [Chicago, IL, USA] | 1933 (1 year) | ||
| Parrish, Inc., W.G. [Chicago, IL, USA] | |||
| Parritt, F.T. [Bloomington, IL, USA] | 1897 (1 year) | ||
| Parrot Soft. | 1983 to 1985 (3 years) | ||
| PARS Electronics, Inc. [Charlotte, NC, USA] | |||
| Parsec | |||
| Partec, Inc. | 1992 (1 year) | ||
| Parth Galen Soft. | 1990 (1 year) | ||
| Partners in Crime | 1990 to 1992 (3 years) | ||
| Party Room 21 | 1991 to 1994 (4 years) | ||
| Party Time | 2012 (1 year) | ||
| Pasadena Soft. | 1987 (1 year) | ||
| Pascal2 [Japan] | 1987 to 1988 (2 years) | ||
| Pascavision | 1995 (1 year) | ||
| Pascual, S.A. | |||
| PASE | |||
| Pasesoft | 1983 (1 year) | ||
| Pasoket | 1988 to 1991 (4 years) | ||
| Pasokon Shop Kouchi [Japan] | |||
| Pasokon Yuushi | |||
| Pasquale, A. [Belgium] | 1930 (1 year) | ||
| Pasquet, A. [Paris, France] | 1912 (1 year) | ||
| Pass-Time Table Co. | |||
| Passow & Sons, C. [Chicago, IL, USA] | 1909 (1 year) | ||
| Passport Designs, Inc. | 1981 to 1989 (9 years) | ||
| Pastel Games | |||
| Pastel Hope [Japan] | 1992 to 1999 (8 years) | ||
| Pastel Koubou | 1995 (1 year) | ||
| Pasteur, C. [Paris, France] | 1908 to 1910 (3 years) | ||
| Pat Morita Team | 2020 to 2021 (2 years) | ||
| Patent Purchase Co. [New York, NY, USA] | 1892 (1 year) | ||
| Patisonic [Russia] | 1993 (1 year) | ||
| Patra [Japan] | 1996 to 1997 (2 years) | ||
| Patrik's Retro Tech | 2022 (1 year) | ||
| Patterson, Clara E. [New York, NY, USA] | 1888 (1 year) | ||
| Paul, S.O. [Philadelphia, PA, USA] | 1927 (1 year) | ||
| PAULIN | |||
| Paulisoft Informatica [Brazil] | 1989 (1 year) | ||
| Paupa & Hochriem [Chicago, IL, USA] | 1896 to 1917 (22 years) | ||
| Pav, Richard | 1968 to 1981 (14 years) | ||
| Paws, Inc. | |||
| Pax Softonica [Japan] | 1984 to 1986 (3 years) | ||
| Paxanga Soft | 1991 to 2012 (22 years) | ||
| Paxman Promotions | 1982 to 1990 (9 years) | ||
| Paxon | 1983 (1 year) | ||
| Payday | 1992 to 1995 (4 years) | ||
| Payphone, Inc. [Clemmons, NC, USA] | 1986 (1 year) | ||
| PBI Soft., Inc. [Foster City, CA, USA] | 1985 to 1988 (4 years) | ||
| PBS Kids [Public Broadcasting Service] | |||
| PC and Office Technology [South Africa] | 1984 (1 year) | ||
| PC Globe, Inc. | 1990 to 1992 (3 years) | ||
| PC Gradeworks | |||
| PC Help-Line | 1987 to 1992 (6 years) | ||
| PC Mikrodata | 1989 (1 year) | ||
| PC Research, Inc. | 1984 (1 year) | ||
| PC Soft. | 1988 (1 year) | ||
| PC Solutions | 1990 to 1994 (5 years) | ||
| PC User | 1987 (1 year) | ||
| PC-Chips | |||
| PC-Paroject [Japan] | 1994 (1 year) | ||
| PC-SIG, Inc. [CA, USA] | 1988 to 1994 (7 years) | ||
| PCAI [Practical Computer Applications, Inc.] | 1985 to 1988 (4 years) | ||
| PCCM | 1990 (1 year) | ||
| PCCW Japan [Pacific Century Cyber Work] | 2002 to 2003 (2 years) | ||
| PCG Computer Soft. | 1988 (1 year) | ||
| PCM Complete | 1992 to 1993 (2 years) | ||
| PCP | 1985 to 1999 (15 years) | ||
| PCPI | 1982 (1 year) | ||
| PCSG | 1985 to 1990 (6 years) | ||
| PCSL Soft. [Germany] | 1991 to 1992 (2 years) | ||
| PCW [Personal Computer World] | 1983 to 1984 (2 years) | ||
| PD Inc. | 1997 (1 year) | ||
| PD-Soft | 1990 to 1995 (6 years) | ||
| PDATA | 1981 (1 year) | ||
| PDC [Pleasure Dome Crew] | 1994 (1 year) | ||
| PDC [Professional Data Computer] | 1984 (1 year) | ||
| PDI [Program Design, Inc.] | 1978 to 1984 (7 years) | ||
| PDK [Germany] | |||
| PDQ | 1983 (1 year) | ||
| PDT | 1984 to 1985 (2 years) | ||
| PDW | 1989 (1 year) | ||
| PDW:Hotapen | 2013 to 2024 (12 years) | ||
| Peace, Mike | 1981 (1 year) | ||
| Peach [UK] | |||
| Peach Soft. [Japan] | 1991 to 1994 (4 years) | ||
| Peachtree Soft. | 1982 to 1984 (3 years) | ||
| Peacock | |||
| Peacock Computer | |||
| Peaksoft | 1982 to 1987 (6 years) | ||
| Peanut Sales Co. | 1933 (1 year) | ||
| Pearce & Gross | 1981 (1 year) | ||
| Pearce, Craig | 1977 (1 year) | ||
| Pearl Abyss | 2019 (1 year) | ||
| Pearl Soft. [Japan] | 1995 to 1997 (3 years) | ||
| Pearsall & Finkbeiner [Syracuse, NY, USA] | 1898 (1 year) | ||
| Pearson, Augustus W. [Marblehead, MS, USA] | 1894 (1 year) | ||
| Pearsons Computing | 1984 to 1987 (4 years) | ||
| Peartree Computers, Ltd. | 1986 to 1987 (2 years) | ||
| Peeny Pad | 1984 (1 year) | ||
| Peerless Amusement Machine Co. [Los Angeles, CA, USA] | 1927 to 1928 (2 years) | ||
| Peerless Coin Machine Co. [Syracuse, NY, USA] | 1916 (1 year) | ||
| Peerless Enterprises, Ltd. | 1958 (1 year) | ||
| Peerless Mfg. Co. [Chicago, IL, USA] | 1933 to 1934 (2 years) | ||
| Peerless Piano Player Co. [St. Johnsville, NY, USA] | 1898 to 1911 (14 years) | ||
| Peerless Products Co. [North Kansas City, MO, USA] | 1915 to 1937 (23 years) | ||
| Peerless Sales & Products Co. [Kansas City, MO, USA] | 1932 (1 year) | ||
| Peerless Vending | 1920 (1 year) | ||
| Peerless Vending Machine Co., The [Pittsburg, PA, USA] | 1908 (1 year) | ||
| Pegas | 1990 (1 year) | ||
| Pegasoft | 1991 to 1993 (3 years) | ||
| Pegasus Japan | 1991 to 1994 (4 years) | ||
| Pegasus Soft. | 1983 to 1991 (9 years) | ||
| Peggy O'Neal Cigar Corp. [New York, NY, USA] | 1930 (1 year) | ||
| PEI [Performance Enterprises, Inc.] | 1974 (1 year) | ||
| Peiselulli | 2007 (1 year) | ||
| Peiser-De Haan, J.J. | 1955 (1 year) | ||
| Pejovic, Vuksan | |||
| Pekar, R. L. | 1977 (1 year) | ||
| Peker Computers | 1985 (1 year) | ||
| Pekin Net | 1990 (1 year) | ||
| PEL Soft | 1986 (1 year) | ||
| PEL Varazdin | 1981 to 1988 (8 years) | ||
| PEL Zabavni Programi | 1985 (1 year) | ||
| Pel-Tek | 1982 (1 year) | ||
| Pelagon Soft. | 1985 to 1987 (3 years) | ||
| Pelatronics | |||
| PELCO [Portable Elevator Mfg. Co.] [Bloomington, IL, USA] | 1940 (1 year) | ||
| Pelegrin, F. [France] | 1982 (1 year) | ||
| Pelican Accessories | |||
| Pelican Soft. | 1987 to 1992 (6 years) | ||
| PEMHI [Spain] | 1986 (1 year) | ||
| Penazo Soft. [Spain] | 1992 to 1993 (2 years) | ||
| Pencilkids, Ltd. | |||
| Pender, Roger | 1984 to 1989 (6 years) | ||
| Penguin | |||
| Penguin Books | 1983 (1 year) | ||
| Penguin Soft. | 1982 to 1985 (4 years) | ||
| Penguin Study Soft. | 1984 to 1985 (2 years) | ||
| Penis-Fucktory | 1994 (1 year) | ||
| Penkin V. | 1986 (1 year) | ||
| Penn Novelty Sales Co. [Philadelphia, PA, USA] | 1929 (1 year) | ||
| Penn Shuffleboard Co. [West Chester, PA, USA] | 1949 (1 year) | ||
| Penn Soft., John | 1984 to 1987 (4 years) | ||
| Pennant Novelty Co. [Chicago, IL, USA] | 1933 to 1934 (2 years) | ||
| Penner, Jeremy | |||
| Penner, Les | 1984 to 1989 (6 years) | ||
| Penner, Thomas William | 1993 (1 year) | ||
| Pennington & Bennett | 1974 (1 year) | ||
| Pennsylvania Novelty Co. [New Brighton, PA, USA] | 1931 (1 year) | ||
| Penny Amusements | 1968 (1 year) | ||
| Penny Ante Amusement Co., Inc. [Riverside, CA, USA] | 1934 (1 year) | ||
| Penny Arcade [Beverly Hills, CA, USA] | 1975 (1 year) | ||
| Penny King Co. [Philadelphia, PA, USA] | 1937 to 1940 (4 years) | ||
| Penny Products Vending Co. [Kansas City, MO, USA] | 1922 (1 year) | ||
| Pension Productions | 2019 (1 year) | ||
| Pentacour | 2014 to 2018 (5 years) | ||
| Pentagon | |||
| Pentagram | 1992 (1 year) | ||
| Pentavision [Korea] | 2006 to 2011 (6 years) | ||
| Peo Mfg. Co. [Rochester, NY, USA] | 1928 to 1933 (6 years) | ||
| Peo Sales Corp. [Rochester, NY, USA] | 1935 (1 year) | ||
| People's Computer Co. | 1972 to 1978 (7 years) | ||
| People's Peanut Co. [New York, NY, USA] | 1904 (1 year) | ||
| Pepin, Jacques | |||
| Peppermint Kids [Japan] | 1994 (1 year) | ||
| Pepsi Soft. [Spain] | 1991 to 1992 (2 years) | ||
| Pera GmbH | 1952 (1 year) | ||
| Peraino, Paul | 1973 (1 year) | ||
| Perception | 1999 (1 year) | ||
| Perceptronics | 1982 (1 year) | ||
| Perchang | 2018 to 2020 (3 years) | ||
| Percival, Orin L. [Champaign, IL, USA] | 1896 (1 year) | ||
| Perdido Key Home Computers | |||
| Perea, Rogelio | |||
| Pereaux, Gaston [France] | 1904 (1 year) | ||
| Perestroika Soft. | 2014 (1 year) | ||
| Perfect Games Co. [Brooklyn, NY, USA] | 1946 (1 year) | ||
| Perfect Soft. | 1982 to 1984 (3 years) | ||
| Perfection Automatic Machine Co. [Easton, PA, USA] | 1915 (1 year) | ||
| Perfection Mfg. Co. [Detroit, MI, USA] | 1897 (1 year) | ||
| Perfection Novelty Co. [New York, NY, USA] | 1895 to 1896 (2 years) | ||
| Perfection Novelty Co. [Philadelphia, PA, USA] | 1914 (1 year) | ||
| Perfection Soft. | 1983 to 1984 (2 years) | ||
| Performance Designed Products | 2005 to 2006 (2 years) | ||
| Performance Peripherals | 1987 (1 year) | ||
| Perfume Ejector Co. [New York, NY, USA] | 1895 (1 year) | ||
| Peripheral Technology | 1988 to 1990 (3 years) | ||
| Peripheral World | 1995 to 1996 (2 years) | ||
| Periscope Soft. | 1991 (1 year) | ||
| Perkins & Brigden | |||
| Perkins Engineering | 1980 to 1987 (8 years) | ||
| Perkins, Steven B. | 1989 (1 year) | ||
| Perma-Top Corp. [Chicago, IL, USA] | 1949 (1 year) | ||
| Permanent Memory Systems | 1985 to 1988 (4 years) | ||
| Perosi, Charles | 2004 (1 year) | ||
| Perpichnick [Chicago, IL, USA] | 1897 (1 year) | ||
| Perry [Yeovil, England] | 1875 (1 year) | ||
| Perry, G.F. [Johnston, SC, USA] | 1948 (1 year) | ||
| Perry, Milt | 1982 (1 year) | ||
| Persian Soft [Japan] | 1996 (1 year) | ||
| Persichini [UK] | 1915 (1 year) | ||
| PerSoft | 1982 (1 year) | ||
| Personal Companion Soft. | 1990 to 1992 (3 years) | ||
| Personal Computer Games | 1984 (1 year) | ||
| Personal Computer News | 1984 (1 year) | ||
| Personal Computers [Russia] | 1988 (1 year) | ||
| Personal Music Corp. [Newark, NJ, USA] | 1946 (1 year) | ||
| Personal Peripheral Products | 1983 (1 year) | ||
| Personal Peripherals, Inc. [Irvin, TX, USA] | 1984 (1 year) | ||
| Personal Programming Center | 1975 to 1980 (6 years) | ||
| Personal Soft., Inc. | 1977 to 1983 (7 years) | ||
| Perusanec, Josip | |||
| Peruzzo Periodici [Italy] | 1984 (1 year) | ||
| Peschlow Automaten [Berlin, Germany] | 1920 (1 year) | ||
| Pessers & Moody [London, England] | 1898 to 1908 (11 years) | ||
| Pessers, Moody, Wraith & Gurr [PMWG] [London, England] | 1905 to 1924 (20 years) | ||
| Pet Boat | 1983 (1 year) | ||
| PETACO [Proyectos Electromecanicos de Tanteo y Color] [Madrid, Spain] | 1966 to 1981 (16 years) | ||
| Peter Arndt | 1987 (1 year) | ||
| Peter Gordon | |||
| Peter Mfg. Co. [St. Louis, MO, USA] | 1904 (1 year) | ||
| Peters, Wouter | |||
| Petersen Co., T.W. [Chicago, IL, USA] | 1905 (1 year) | ||
| Petersen, Edvard Agner Koj [Copenhagen, Denmark] | 1947 to 1956 (10 years) | ||
| Peterson Bros. [Chicago, IL, USA] | 1935 (1 year) | ||
| Peterson, John W. [Chicago, IL, USA] | 1896 (1 year) | ||
| Petisoft | 1988 (1 year) | ||
| Petit [Japan] | 1996 (1 year) | ||
| Petra [Japan] | 1996 (1 year) | ||
| Petrov Soft. | 1990 (1 year) | ||
| Petrovszki, Jozsef & Rota, Szabolcs | 1987 (1 year) | ||
| Pets Mode, The | 2010 to 2015 (6 years) | ||
| Petsoft | 1978 (1 year) | ||
| Petulka Soft. | 1991 (1 year) | ||
| Peyper, S.A. [Spain] | 1977 to 1994 (18 years) | ||
| PF Soft. | |||
| PF-Magic, Inc. | 1995 (1 year) | ||
| Pfeiffer [Stuttgart, Germany] | 1952 (1 year) | ||
| Pflaum Verlag Munchen | 1985 (1 year) | ||
| PGD, Inc. [EL Cajon, CA, USA] | 1985 to 1987 (3 years) | ||
| PGI [Pro Games, Inc.] [Pasadena, CA, USA] | 1973 (1 year) | ||
| PGI [Programable Games, Inc] | |||
| Phalibois, Jean [France] | 1895 (1 year) | ||
| Phank's | 1994 (1 year) | ||
| Phantagram [Korea] | 1995 to 2000 (6 years) | ||
| Phantom EFX | 2009 to 2013 (5 years) | ||
| Phantom Soft. | 1983 (1 year) | ||
| Phantom Systems | |||
| Phat Kids Enterprises | 2000 (1 year) | ||
| Phelios Dev. | 1995 (1 year) | ||
| PhenixSoft | 2003 (1 year) | ||
| Phenomedia Publishing GmbH | 2000 to 2007 (8 years) | ||
| Pheonix International, Inc. | |||
| PHF | 1992 to 1995 (4 years) | ||
| PHG | 1986 to 1988 (3 years) | ||
| Phi | 1981 (1 year) | ||
| Philadelphia Badge Co. [Philadelphia, PA, USA] | 1928 (1 year) | ||
| Philadelphia Toboggan Co. [Philadelphia, PA, USA] | 1947 (1 year) | ||
| Philidor Soft. | 1981 (1 year) | ||
| Philippe, Henry | 1989 (1 year) | ||
| Philipps & Sohne, J.D. [Bockenheim, Germany] | |||
| Philips Austria | 1995 (1 year) | ||
| Philips Corp. | 1975 to 1991 (17 years) | ||
| Philips Interactive Media, Inc. | 1984 to 1998 (15 years) | ||
| Philips Italy | 1986 (1 year) | ||
| Philips Spain | 1984 to 1989 (6 years) | ||
| Philko Corp. [Seoul, Korea] | 1987 to 1990 (4 years) | ||
| Phillips Farm Supply, Hardware & Furniture [Carbondale, IL, USA] | 1904 to 1912 (9 years) | ||
| Phillips, Ed | 1987 (1 year) | ||
| Phillips, John | 1984 to 1988 (5 years) | ||
| Philon | |||
| Philon of Byzantium [Byzantium, Ancient Greece] | -250 (1 year) | ||
| Phinnex Co., Ltd. | 1993 to 1994 (2 years) | ||
| Phipps Associates | 1982 to 1984 (3 years) | ||
| Phipps, S. | 2000 (1 year) | ||
| Phlegm Games | 1994 to 1995 (2 years) | ||
| Phoebus Corp. | |||
| Phoenix | 1988 to 1989 (2 years) | ||
| Phoenix 2000 | 1990 (1 year) | ||
| Phoenix [Japan] | 1988 to 1991 (4 years) | ||
| Phoenix Electronics Co. | |||
| Phoenix Games | 2003 to 2006 (4 years) | ||
| Phoenix Games & Amusements | |||
| Phoenix Publishing Associates | 1983 to 1986 (4 years) | ||
| Phoenix Soft. | 1982 to 1984 (3 years) | ||
| Phoenix Works [Birmingham, England] | 1910 (1 year) | ||
| Phonolux | 1944 (1 year) | ||
| Photomovette, Inc. [New York, NY, USA] | 1928 (1 year) | ||
| Photon System [Russia] | |||
| Phuture | 1995 to 1998 (4 years) | ||
| Physical Dreams | 2020 to 2022 (3 years) | ||
| Pi Soft. | 1983 (1 year) | ||
| Piacci Co., Ltd. [Japan] | 2012 (1 year) | ||
| Pianolectra Co., The | 1907 (1 year) | ||
| Pianora Co., The [NY, USA] | 1905 (1 year) | ||
| Pianotist Co., The [NY, USA] | 1905 (1 year) | ||
| PIC [Pasadena International Corp.] [Pasadena, CA, USA] | 1989 (1 year) | ||
| Picardi, Ron | |||
| Piccadilly Soft. | 1981 to 1982 (2 years) | ||
| Pick & Choose, Ltd. | 1984 to 1989 (6 years) | ||
| Pick & Co., Albert [Chicago, IL, USA] | 1896 to 1910 (15 years) | ||
| Pickles & Trout | 1983 (1 year) | ||
| Picmatic S.A. [Bilbao, Spain] | 1990 to 2000 (11 years) | ||
| Pico Soft | 1991 (1 year) | ||
| Picturesque | 1982 (1 year) | ||
| Pie in the Sky Soft. | 1991 (1 year) | ||
| Pielago Soft. | 1990 (1 year) | ||
| Pier 1 Exchange | 1993 to 1996 (4 years) | ||
| Pierau, Mark | 1995 (1 year) | ||
| Pierce Tool & Mfg. Co. [Chicago, IL, USA] | 1932 to 1937 (6 years) | ||
| Pierce, Arthur M. [Brooklyn, NY, USA] | 1888 (1 year) | ||
| Pierce, Clifford G. | |||
| Piesen Mfg. Co. [USA] | 1928 (1 year) | ||
| Pietkivitch, Robert | 1991 (1 year) | ||
| Pigallio, Lilian | 1992 to 2001 (10 years) | ||
| PikaDee Soft. | 1984 (1 year) | ||
| Pikii [Japan] | 2017 to 2019 (3 years) | ||
| Piko Interactive LLC | 2012 to 2020 (9 years) | ||
| PikPok | 2011 to 2019 (9 years) | ||
| PIL [Japan] | 1995 to 1997 (3 years) | ||
| Pilat Informatique Educative | 1985 (1 year) | ||
| Pilot Machine Co. | |||
| Pilot Trainer Sales Co. [New York, NY, USA] | 1944 (1 year) | ||
| Piloux | |||
| Pilsoft | |||
| Pim Soft. [Greece] | |||
| Pinard | 1987 (1 year) | ||
| Pinball Adventures | 2023 (1 year) | ||
| Pinball Brothers | 2021 (1 year) | ||
| Pinball Co., the | 2014 (1 year) | ||
| Pinball Factory, The [Australia] | 2005 (1 year) | ||
| Pinder, G. [UK] | 1927 (1 year) | ||
| Pine Technology | |||
| Pine Tree State Machine Co. [Somersworth, NH, USA] | 1907 (1 year) | ||
| Pineapple [Japan] | 1989 to 1991 (3 years) | ||
| Pineapple Soft. | 1985 to 1988 (4 years) | ||
| Pinel & Pinel [Paris, France] | 2010 (1 year) | ||
| Pink Elephant [Japan] | 1992 (1 year) | ||
| Pink Pig Soft. | 1997 to 1998 (2 years) | ||
| Pinksoft [Korea] | 2005 (1 year) | ||
| Pinkysoft [Japan] | 1990 to 1993 (4 years) | ||
| Pinnacle Soft. | 1989 to 1995 (7 years) | ||
| Pinpoint Publishing | 1986 to 1987 (2 years) | ||
| Pinprint | 1999 to 2001 (3 years) | ||
| Pinstar | 1985 (1 year) | ||
| Pinto Bros. | |||
| Pinwizz & Shiru | 2011 (1 year) | ||
| Pioneer Automatic Merchandising Corp. [Detroit, MI, USA] | 1931 (1 year) | ||
| Pioneer Co., Ltd. [Japan] | 1982 to 2016 (35 years) | ||
| Pioneer Coin Machine Co. [Chicago, IL, USA] | 1946 (1 year) | ||
| Pioneer Games Co. [Minneapolis, MN, USA] | 1933 (1 year) | ||
| Pioneer LDC, Inc. [Japan] | 1993 to 2001 (9 years) | ||
| Pioneer Vending Service [Brooklyn, NY, USA] | 1938 (1 year) | ||
| Pionesoft | 2004 to 2005 (2 years) | ||
| Pipeline Soft. | 1992 (1 year) | ||
| Piper | 1984 (1 year) | ||
| Pippin, Inc. | |||
| Piquemal, Michel | |||
| Piranha | 1986 to 1987 (2 years) | ||
| Pirate Computing | 1987 (1 year) | ||
| Pirate Soft. | 1986 to 1988 (3 years) | ||
| Pirate's Harbor | 1984 (1 year) | ||
| Pirates do Caribe | 2017 to 2021 (5 years) | ||
| Piret, Endre & Vekony, Sandor | 1987 (1 year) | ||
| Pirone, Joe & Robert | 1986 (1 year) | ||
| Piston Soft. [Japan] | 1997 (1 year) | ||
| Pitkin, Irvin L. [Ravenna, OH, USA] | 1892 (1 year) | ||
| Pitman Publishing | 1984 (1 year) | ||
| Pitman Soft., Steve | 1987 to 2010 (24 years) | ||
| Pitney-Bowes, Inc. [Stamford, CT, USA] | 1946 (1 year) | ||
| Pitronics | 1984 (1 year) | ||
| Pixel Co. | 1986 to 1987 (2 years) | ||
| Pixel Federation Games | 2014 to 2019 (6 years) | ||
| Pixel Productions | 1982 to 1983 (2 years) | ||
| Pixel Technologies | 1990 (1 year) | ||
| Pixel Toys | |||
| PixelHeart | 2019 (1 year) | ||
| Pixelsoft | 2014 (1 year) | ||
| Pixio | 2016 to 2019 (4 years) | ||
| Pixodust Games | 2019 (1 year) | ||
| Pixstik | |||
| Pixy Bell [Japan] | 1992 (1 year) | ||
| Pixy Games, Inc. | 2002 (1 year) | ||
| Pizon Bros. | 1977 (1 year) | ||
| PJ Soft. | 1987 to 1989 (3 years) | ||
| PJM | 1985 to 1987 (3 years) | ||
| PJP | |||
| PK Computer Graphics | |||
| PKWARE, Inc. | 1993 (1 year) | ||
| PL Informatique [Clamart, France] | 1982 to 1983 (2 years) | ||
| Plagwitzer Musikwerke [Leipzig, Germany] | 1895 (1 year) | ||
| Plamondon, James | 1984 (1 year) | ||
| Plamondon, James & Robert | 1984 (1 year) | ||
| Plamor Novelty Co. [Amarillo, TX, USA] | 1932 (1 year) | ||
| Planet [Japan] | 1993 to 1995 (3 years) | ||
| Planet Earth Ent. [Glendale, CA, USA] | 1996 (1 year) | ||
| Planet Mfg. Co. [Detroit, MI, USA] | 1942 (1 year) | ||
| Planil | 1975 (1 year) | ||
| Plansoft | 1982 (1 year) | ||
| Plarium Global, Ltd. | 2014 to 2019 (6 years) | ||
| Plasma Soft. | 1983 to 1984 (2 years) | ||
| Plastic Raygun | 1998 (1 year) | ||
| Platipus, Ltd. | |||
| Platty Soft | 2020 to 2022 (3 years) | ||
| Plauze | 1993 to 1994 (2 years) | ||
| Play 21 | |||
| Play Avenue | 1996 (1 year) | ||
| Play Byte Soft. | 1992 to 1997 (6 years) | ||
| Play It | 2003 to 2011 (9 years) | ||
| Play It! | 1984 (1 year) | ||
| Play System | |||
| Play Video | 1982 (1 year) | ||
| Play Vision | 2004 to 2006 (3 years) | ||
| Play Works | 1998 (1 year) | ||
| Play'n GO | 2016 to 2023 (8 years) | ||
| Play-On.it [San Mango Piemonte, Italy] | 2008 to 2009 (2 years) | ||
| Play-Write Corp. [Akron, OH, USA] | 1950 (1 year) | ||
| PlayAround | 1982 (1 year) | ||
| Playbar, S.A. | 1987 (1 year) | ||
| Players Premier | 1985 to 1991 (7 years) | ||
| Players Soft. | 1985 to 1991 (7 years) | ||
| Playfield | 1990 (1 year) | ||
| PlayFirst | 2005 to 2011 (7 years) | ||
| Playism [Japan] | 2017 (1 year) | ||
| Playjeux | 1985 (1 year) | ||
| Playlogic Ent., Inc. | 2006 to 2009 (4 years) | ||
| Playmark | 1989 to 2006 (18 years) | ||
| Playmates Interactive Ent., Inc. [La Mirada, CA, USA] | 1994 to 1997 (4 years) | ||
| Playmatic, S.A. [Spain] | 1970 to 1987 (18 years) | ||
| Playmec [Bologna, Italy] | 1975 (1 year) | ||
| Playmont | 1984 to 2010 (27 years) | ||
| Playmore Corp. [Japan] | 2002 to 2003 (2 years) | ||
| Playnautic | 2020 (1 year) | ||
| PlayOnRetro | 2017 (1 year) | ||
| PlayPak Systems Inc. [PA, USA] | 1997 (1 year) | ||
| Playrix Ent. | 2008 to 2019 (12 years) | ||
| Playskool | 1978 (1 year) | ||
| Playsoft | |||
| Playson, Ltd. | 2019 to 2020 (2 years) | ||
| Playtech | |||
| Playtech [Australia] | 1976 (1 year) | ||
| Playtika | 2012 to 2020 (9 years) | ||
| Playtime | 1988 (1 year) | ||
| Playtron srl [Roma, Italy] | 2010 (1 year) | ||
| Playtronic srl [Argentina] | 1983 (1 year) | ||
| Playvision [Italy] | 1984 to 1986 (3 years) | ||
| PLBM Games | 1996 to 2004 (9 years) | ||
| Pleasantrees | 1982 (1 year) | ||
| Pleasure Golf, Inc. [Chicago, IL, USA] | 1930 (1 year) | ||
| Pleiades Soft. | 2022 (1 year) | ||
| Pleno Co., The [Japan] | 2010 (1 year) | ||
| PLI [Pyrénées Landes Informatique] [Dax, France] | 1981 to 1982 (2 years) | ||
| Plinke, Emil | 1952 to 1953 (2 years) | ||
| Plissken | 2002 (1 year) | ||
| PLK | |||
| Plomba Soft. | 1988 (1 year) | ||
| Plug In Digital | 2019 (1 year) | ||
| Pluricom [Italy] | 1999 to 2001 (3 years) | ||
| Plus Data | 1984 (1 year) | ||
| Plush | 1994 to 2009 (16 years) | ||
| Pluto | 1984 (1 year) | ||
| PM | 1981 to 1987 (7 years) | ||
| PM Athletic Co. | 1897 (1 year) | ||
| PM Programs | 1984 (1 year) | ||
| PM Studios, Inc. | 2009 to 2018 (10 years) | ||
| PMA | 1983 (1 year) | ||
| PMC Electronics Co., Inc. [Southampton, PA, USA] | 1973 to 1975 (3 years) | ||
| PME Computer [Paris, France] | 1982 (1 year) | ||
| PMR International BV | |||
| PNP | 1986 (1 year) | ||
| Poara Enterprises | 1989 (1 year) | ||
| Poby | 1993 (1 year) | ||
| Pocket & Soul | 1994 (1 year) | ||
| Pocket Direct | 2006 to 2018 (13 years) | ||
| Pocket Money Soft. | 1984 to 1985 (2 years) | ||
| Pocze, Szabolcs | 1987 (1 year) | ||
| Podgorski, Witold | 1962 (1 year) | ||
| Poe Games | 2022 (1 year) | ||
| Poelke, J. | 1954 (1 year) | ||
| Poff, Joseph A. [Lawrence, KS, USA] | 1892 (1 year) | ||
| Pogo.com | |||
| Pogodin, D.V. | 1989 (1 year) | ||
| Pogue, Miller & Co. [Richmond, IN, USA] | 1910 (1 year) | ||
| Pohl, Timo | 1984 (1 year) | ||
| Point Getter | 1989 (1 year) | ||
| Point of View Computing | 1992 to 1993 (2 years) | ||
| PointSoft | 1999 (1 year) | ||
| Poison | 1990 to 1992 (3 years) | ||
| Poison Breath [Japan] | 1996 to 1997 (2 years) | ||
| Pokemon Co., The | 2005 to 2019 (15 years) | ||
| PokerTek, Inc. [Matthews, NC, USA] | |||
| POL [People of Liberty] | 1999 to 2016 (18 years) | ||
| Polar Bear Enterprises, Inc. [Mt. Clemens, MI, USA] | 1981 (1 year) | ||
| Polar Engineering | |||
| Polaro, Bob | 1977 (1 year) | ||
| Polaroid | 2004 (1 year) | ||
| Polarsoft, Ltd. | 1983 (1 year) | ||
| Polarware | 1985 to 1999 (15 years) | ||
| Police Sowtver | |||
| Policy [Japan] | 1984 to 1986 (3 years) | ||
| Polistil [Italy] | 1982 to 1984 (3 years) | ||
| Pollock, Graham | 1985 to 1986 (2 years) | ||
| Polmer | 1986 (1 year) | ||
| Poly | 1983 (1 year) | ||
| Poly-Data Microcenter | |||
| Poly-Versa-Technology Soft. | 1980 (1 year) | ||
| Polybrain | 1983 (1 year) | ||
| Polycade | 2022 (1 year) | ||
| Polycorp | 1981 to 1984 (4 years) | ||
| Polydor K.K. | 1993 (1 year) | ||
| Polygon Magic | 1999 to 2011 (13 years) | ||
| Polygram Magic of Japan | 1994 to 1999 (6 years) | ||
| PolyGram Video | |||
| Polymax | 1982 (1 year) | ||
| PolyMorphic Systems | 1976 to 1977 (2 years) | ||
| Polyphon Musikwerke [Leipzig, Germany] | 1895 to 1910 (16 years) | ||
| Polysoft | 1991 (1 year) | ||
| Polytechnic of Central London | 1983 (1 year) | ||
| Polytechnik Karl-Marx-Stadt | 1985 (1 year) | ||
| Polyvox [Brazil] | 1977 to 1984 (8 years) | ||
| Polyzoom Media | 2003 (1 year) | ||
| POM Distributeur [France] | |||
| Pompey Pirates | |||
| Poncet, M. [Villeurbanne, France] | 1899 to 1914 (16 years) | ||
| Pong Enterprises, Ltd. [Winnipeg, MB, Canada] | |||
| Ponos | 1999 to 2000 (2 years) | ||
| Ponser Co., George [Chicago, IL, USA] | 1945 to 1947 (3 years) | ||
| Ponta Soft | 1989 to 1990 (2 years) | ||
| Pony Canyon, Inc. [Japan] | 1982 to 2005 (24 years) | ||
| PonyTail Soft | 1989 to 1996 (8 years) | ||
| Pool Bowling Mfg. Corp. [Steger, ILL, USA] | |||
| Poole Bros., Mfgrs. [Chicago, IL, USA] | 1903 to 1904 (2 years) | ||
| Pooley, Walter | 1992 (1 year) | ||
| Poolware | |||
| Poose & Co., Keith [London, England] | |||
| POP Game | 1982 (1 year) | ||
| POP Soft. | 1990 to 1994 (5 years) | ||
| Pop-A-Shot, Inc. [NC, USA] | 1985 (1 year) | ||
| PopCap Games, Inc. | 2011 (1 year) | ||
| Popcom Soft | 1986 to 1995 (10 years) | ||
| Popcore Games | 2018 to 2019 (2 years) | ||
| Popcorn Arcade | 2007 to 2008 (2 years) | ||
| Pope Automatic Co. | 1909 (1 year) | ||
| Pope, Clarence R. [East St. Louis, IL, USA] | 1904 (1 year) | ||
| Pope, William R. [New York, NY, USA] | 1887 to 1890 (4 years) | ||
| Popov S. | 1986 (1 year) | ||
| Popper & Co. [Leipzig, Germany] | 1897 to 1930 (34 years) | ||
| Poppo Co., Ltd. [Japan] | 1994 to 1995 (2 years) | ||
| Poppy Soft | 1983 to 1984 (2 years) | ||
| PopTop Soft. | 2000 (1 year) | ||
| Popular Computing Weekly | 1982 to 1986 (5 years) | ||
| Popular Games, Inc. [Minneapolis, MN, USA] | 1927 (1 year) | ||
| Popy Electronics [Japan] | 1982 (1 year) | ||
| Portabledev | 2012 to 2020 (9 years) | ||
| Portent Adventures | |||
| Porter Data Systems | |||
| Porter, Allan | 1984 to 1994 (11 years) | ||
| Portidata, Ltda. | |||
| Portland Novelty Works [Portland, OR, USA] | 1901 (1 year) | ||
| Portsmouth Polytechnic | 1986 (1 year) | ||
| POS Automatenbau | 1951 to 1954 (4 years) | ||
| Poschmann, Sebastian | |||
| Poseidon | 1986 (1 year) | ||
| Positive [Spain] | 1989 to 1991 (3 years) | ||
| Positive Image | 1984 (1 year) | ||
| Positron Computers, Ltd. | 1982 (1 year) | ||
| Posse Press | 1993 to 1999 (7 years) | ||
| Postage Stamp Machine Co. [New York, NY, USA] | |||
| Posten Sverige AB | 1996 (1 year) | ||
| Postern | 1983 to 1984 (2 years) | ||
| Postum Cereal Co., Ltd. [Battlecreek, MI, USA] | 1904 (1 year) | ||
| Potapov, Yuri | 2018 (1 year) | ||
| Potomac Computer Systems | 1991 (1 year) | ||
| Potomac Mortgage Co. | 1980 to 1981 (2 years) | ||
| Potplant | 1989 (1 year) | ||
| Potter | 1983 to 1986 (4 years) | ||
| Potts, Andrew | 2012 (1 year) | ||
| Poultry Games | 2005 (1 year) | ||
| POV | 1989 to 1999 (11 years) | ||
| POV, Inc. | 1997 (1 year) | ||
| Povysoft | 2004 (1 year) | ||
| POW [Planning Office WADA] [Japan] | 1993 to 1997 (5 years) | ||
| POW! | 1995 to 1996 (2 years) | ||
| Powell, Tom | 1993 (1 year) | ||
| Power Computing | 1996 to 1997 (2 years) | ||
| Power House, The [UK] | 1985 to 1988 (4 years) | ||
| Power Joy, Ltd. | 2002 (1 year) | ||
| POWER Soft. [Paris, France] | 1983 to 1986 (4 years) | ||
| Power System | 1993 to 1996 (4 years) | ||
| Power Team | 1997 (1 year) | ||
| Power User Soft. | 1991 to 1996 (6 years) | ||
| PowerBrain | |||
| Powerfist Productions | 1994 to 1995 (2 years) | ||
| Powerful Boys | 1989 to 1990 (2 years) | ||
| Powerhouse Technologies | 1998 to 1999 (2 years) | ||
| Powerplay | 1989 (1 year) | ||
| Powerplay Ent. | |||
| Powerslave Soft. | 1994 (1 year) | ||
| Powersoft, Inc. | 1978 to 1979 (2 years) | ||
| PowerSoft. | 1984 (1 year) | ||
| PPG | 1982 (1 year) | ||
| PPI | 1984 (1 year) | ||
| PPP Ediciones | 1986 to 1987 (2 years) | ||
| PPS [Publishers Pool System] [Paris, France] | 1993 (1 year) | ||
| PQube, Ltd. | 2012 to 2020 (9 years) | ||
| PR Soft. | 1987 (1 year) | ||
| Practical Computing | 1983 (1 year) | ||
| Practical Electronics | 1979 to 1980 (2 years) | ||
| Practical Novelty Co. | |||
| Practical Programs | 1985 to 1989 (5 years) | ||
| Practical Soft. | 1984 (1 year) | ||
| Practical Wireless | |||
| Practicorp | 1983 (1 year) | ||
| Pragmatic Play, Ltd. | |||
| Pravetz | 1982 to 1989 (8 years) | ||
| Precious, Andy | 2020 (1 year) | ||
| Precision Games | 1986 to 1987 (2 years) | ||
| Precision Sales Co. [USA] | |||
| Precision Soft. Engineering | 1983 (1 year) | ||
| Precision Soft. Publishing | |||
| Precision Soft., Ltd. | 1982 to 1986 (5 years) | ||
| Precision-Bilt Co. [Boston, MA, USA] | 1947 (1 year) | ||
| Prehis-To | 1986 to 2004 (19 years) | ||
| Prehisto | 1984 (1 year) | ||
| Premier Automatic Machine Co. | |||
| Premier Coin Machine Mfg. Corp. [New York, NY, USA] | 1946 to 1947 (2 years) | ||
| Premier International Corp. | 1994 (1 year) | ||
| Premier Microsystems | 1982 to 1983 (2 years) | ||
| Premier Novelty Co. [Chicago, IL, USA] | 1919 (1 year) | ||
| Premier Publications | 1981 (1 year) | ||
| Premier Technology Co. [Bensenville, IL, USA] | 1984 to 1996 (13 years) | ||
| Premier Vending Machine & Sales Co. [Chicago, IL, USA] | 1933 (1 year) | ||
| Premiere Shareware | 1992 (1 year) | ||
| Premium Games | |||
| Premium Novelty Works [Chicago, IL, USA] | 1927 (1 year) | ||
| Premium Soft. | 1985 (1 year) | ||
| Prentice Associates, Inc. | 1985 (1 year) | ||
| Prentice-Hall | 1984 to 1987 (4 years) | ||
| PRES | 1984 to 1989 (6 years) | ||
| Prescription Learning | 1980 to 1986 (7 years) | ||
| Presence | 1991 to 1994 (4 years) | ||
| Presh | 2021 to 2022 (2 years) | ||
| Presley, Ken | 1974 (1 year) | ||
| PResS Adventure, The | |||
| Prestige | 1992 to 1993 (2 years) | ||
| Preston Computer Games | 1984 to 1987 (4 years) | ||
| Preston, Stephen | 1986 (1 year) | ||
| Prevost, C. | 1988 (1 year) | ||
| Prevue Networks | 1991 (1 year) | ||
| Price & Castell [London, England] | 1900 (1 year) | ||
| Price & Teeple Co. [Chicago, IL, USA] | |||
| Price Collar Button Machine Co. [USA] | 1905 (1 year) | ||
| Price Kayem Partnership | 1984 (1 year) | ||
| Price, Arthur [Freeport, NY, USA] | 1930 (1 year) | ||
| Price, J. | |||
| Prichard, Robert S. & Wertz, Charles V. [Portsmouth, OH, USA] | 1904 (1 year) | ||
| Pricing Building Works | 1984 (1 year) | ||
| Pride Utilities, Ltd. [England] | 1984 to 1986 (3 years) | ||
| Priers, Inc. | 1983 (1 year) | ||
| Priess | 1930 (1 year) | ||
| Prima Soft | |||
| Primasoft | 1984 (1 year) | ||
| Prime Peaks | 2015 (1 year) | ||
| Prime Systems Corp. [Prime Group] | 2000 to 2001 (2 years) | ||
| Prime-Ware Creations | 1986 (1 year) | ||
| Primera Soft. | 1986 (1 year) | ||
| Primetec Investments, Ltd. | 2001 (1 year) | ||
| Primion Digitek, SL | 1999 (1 year) | ||
| PRIMUG | 1982 (1 year) | ||
| Prince | 2001 (1 year) | ||
| Prince Soft. | 1984 (1 year) | ||
| Prince, John | 1983 (1 year) | ||
| Princess | 2002 (1 year) | ||
| Princess Soft | 2001 to 2006 (6 years) | ||
| Print'n'Plotter Products | 1983 to 1986 (4 years) | ||
| Printout Publications | 1981 (1 year) | ||
| Prinz, Dietrich | 1951 (1 year) | ||
| Prinztronic | 1976 to 1981 (6 years) | ||
| Prism Arts | 1995 to 2000 (6 years) | ||
| Prism Leisure Corp. plc [UK] [014293] | 1984 to 1996 (13 years) | ||
| PRISM Micro-informatique S.A. [France] | 1983 to 1986 (4 years) | ||
| Prisma Engineernig Srl [Italy] | |||
| Prisma Soft. [UK] | 1990 (1 year) | ||
| Prismasoft | 1992 (1 year) | ||
| Pro Illusion [Japan] | 1996 (1 year) | ||
| Pro Kit [Brazil] | 1987 to 1989 (3 years) | ||
| Pro Soft. | 1982 (1 year) | ||
| Probe Soft. | 1985 to 1992 (8 years) | ||
| Probes, C.K. [Elmira, NY, USA] | 1904 (1 year) | ||
| Proced Informatique [Angers, France] | 1982 (1 year) | ||
| Proceed [Japan] | 1990 to 1992 (3 years) | ||
| Process Equipment Design Corp. | |||
| Processor Technology Corp. | 1976 to 1978 (3 years) | ||
| Procom Soft. | 1983 (1 year) | ||
| ProCon Soft. | 1986 (1 year) | ||
| Procovision | |||
| Procyon | 1982 to 1993 (12 years) | ||
| proDAD | 1992 to 1996 (5 years) | ||
| Prodatron | 1992 to 2007 (16 years) | ||
| Prodigy | 1994 (1 year) | ||
| Producciones Cicero, S.A. [Spain] | |||
| Produce | 1996 to 2000 (5 years) | ||
| Productos Electronicos Del Juego, S.L. | |||
| Proein Soft Line [Spain] | 1984 to 1995 (12 years) | ||
| Proel | 1979 to 1980 (2 years) | ||
| Prof. Knibble | 1987 to 1991 (5 years) | ||
| Professional Games Srl [Italy] | |||
| Professional Soft. | 1983 to 1984 (2 years) | ||
| Professional Soft., Inc. [MA, USA] | 1980 to 1982 (3 years) | ||
| Professor, The | 1983 (1 year) | ||
| Profire Co., Ltd. [Japan] | 1996 (1 year) | ||
| Profisoft [Germany] | 1983 to 1985 (3 years) | ||
| Profit Management Systems, Inc. | |||
| Profit Press | 1993 (1 year) | ||
| Progame | 1983 (1 year) | ||
| Progame Electronic Corp. [Taiwan] | 2006 to 2011 (6 years) | ||
| ProGames [Poland] | 2014 (1 year) | ||
| Program Bureau, The | |||
| Program Design | 1985 (1 year) | ||
| Program Direct | 1982 (1 year) | ||
| Program Factory | 1983 (1 year) | ||
| Program One, Inc. | 1983 (1 year) | ||
| Program Power | 1980 to 1983 (4 years) | ||
| Programma International, Inc. | 1978 to 1980 (3 years) | ||
| Programmatics | |||
| Programmer Soft. | 1978 (1 year) | ||
| Programmer's Guild, The | 1980 to 1983 (4 years) | ||
| Programs in Education | |||
| Progress [Japan] | 1992 to 1999 (8 years) | ||
| Progressive Mfg. Co. [Pana, IL, USA] | 1906 to 1907 (2 years) | ||
| Progressive Novelty Co. [Pana, IL, USA] | 1899 to 1900 (2 years) | ||
| Progressive Peripherals & Soft. | 1984 to 1998 (15 years) | ||
| Project Coin Machines, Ltd. [Surrey, England] | 1991 to 2009 (19 years) | ||
| Project DELTA | 1972 (1 year) | ||
| Project Expansions | 1987 to 1988 (2 years) | ||
| Project G | |||
| Project LIBC Group | 1993 (1 year) | ||
| Project M | 1990 (1 year) | ||
| Project Makkusu | 1990 (1 year) | ||
| Project Rolling Gunner | 2020 (1 year) | ||
| Project Team Interrupt | 1990 to 1991 (2 years) | ||
| Project Two Interactive BV | 1997 to 1999 (3 years) | ||
| Projekt Snc [Italy] | |||
| Prolific | 1995 (1 year) | ||
| Proma | 1983 to 1994 (12 years) | ||
| Promark | 1988 (1 year) | ||
| Promat Co., Ltd [Korea] | 1993 to 1999 (7 years) | ||
| Promedia Konsult | |||
| Promic Group | |||
| Promisence | |||
| Promopublications [France] | |||
| Promotion Soft | 1993 (1 year) | ||
| Promotique [France] | |||
| Pronto | 1983 to 1985 (3 years) | ||
| Proper [Japan] | |||
| Prophetron, Inc. [MS, USA] | 1969 (1 year) | ||
| Prophics Soft. | 1990 (1 year) | ||
| PROSM Soft. | 2020 (1 year) | ||
| ProSoft [Korea] | 1986 to 1990 (5 years) | ||
| Prosoft [UK] | |||
| Prosol | 1984 (1 year) | ||
| Prosperity Coin Machine Co. [USA] | |||
| Prosumer | 1983 (1 year) | ||
| Protechnic Concepts | |||
| Protect Kougaku Kenkyuukai | 1993 (1 year) | ||
| Protek Computing | 1982 to 1984 (3 years) | ||
| Proteus International [Paris, France] | 1978 (1 year) | ||
| Protocision Engineering | 1964 (1 year) | ||
| Protocol | |||
| Proton Soft. | 1991 (1 year) | ||
| Prototype [Japan] | 2010 to 2018 (9 years) | ||
| Protovision | 2007 to 2012 (6 years) | ||
| Protracoa | |||
| Proulx, Mathieu | 2002 (1 year) | ||
| Prouse & Sogge & Maltzen & Lebahn | 1974 (1 year) | ||
| Prowse & Co., Ltd., Keith [London, England] | 1910 (1 year) | ||
| Proxima Soft. [Czech Republic] | 1990 to 1993 (4 years) | ||
| Proxyon | 1991 to 1993 (3 years) | ||
| Proyesel SL [Spain] | 1995 (1 year) | ||
| Prudential, Plc. | |||
| PRW [Phonographic Ruffle & Walker] [London, England] | 1969 (1 year) | ||
| Pryority Soft., Inc. [Salinas, CA, USA] | 1983 to 1986 (4 years) | ||
| PSCD Games | 2019 to 2023 (5 years) | ||
| PSD | 1995 (1 year) | ||
| PSE [Project Support Engineering] [Sunnyvale, CA, USA] | 1975 to 1978 (4 years) | ||
| PSE Computers | 1985 to 1991 (7 years) | ||
| Pseudonym Soft. | 1985 (1 year) | ||
| PSI [ParSoft Interactive] | 1996 (1 year) | ||
| Psikyo | 1993 to 2005 (13 years) | ||
| Psion | 1981 to 1999 (19 years) | ||
| PSK [PC Shop Koshi] [Japan] | 1982 to 1988 (7 years) | ||
| PSL [Public Soft. Library] | 1993 to 1999 (7 years) | ||
| PSL Soft. | |||
| PSM Srl [Italy] | 2009 (1 year) | ||
| PSS [Personal Soft. Services] [012484] | 1982 to 1991 (10 years) | ||
| PSV S.A. [Spain] | 1980 (1 year) | ||
| Psy-Force Project [Japan] | |||
| Psychaedelic Hedgehog Soft. | 1989 to 1992 (4 years) | ||
| Psychic Soft. | |||
| Psychic Soft. [Psychic Games Ltd.] | 2019 (1 year) | ||
| Psycho Hacking Force | 1990 to 2002 (13 years) | ||
| Psychological Psoftware | 1983 to 1989 (7 years) | ||
| Psychophysics Laboratory | |||
| Psychosoft | 1985 (1 year) | ||
| Psyclapse | 1988 to 1991 (4 years) | ||
| Psycograph Co., The [Minneapolis, MN, USA] | 1931 (1 year) | ||
| Psycon Soft. | 1996 (1 year) | ||
| Psycore | |||
| Psygnosis, Ltd. | 1986 to 2000 (15 years) | ||
| Psyhix | |||
| Psytronik Soft. | 2008 to 2020 (13 years) | ||
| Pubblirome [Italy] | 1985 to 1991 (7 years) | ||
| Public MNG | 1987 (1 year) | ||
| Public Scale Co. [Chicago, IL, USA] | 1925 to 1926 (2 years) | ||
| Public Soft. | 1986 (1 year) | ||
| Public Soft. Library | 1994 to 1995 (2 years) | ||
| Publications International, ltd. | |||
| Publiflash [Italy] | 1985 to 1986 (2 years) | ||
| Publishing International | 1988 (1 year) | ||
| Puckett, Sean | 1992 (1 year) | ||
| Puffin Books | 1984 (1 year) | ||
| Puget Sound ADAM Network | |||
| Puget Sound Program | 1978 (1 year) | ||
| Pugno, Paolo Fabrizio | 2022 (1 year) | ||
| Pukall, Alexandre | 1986 to 1997 (12 years) | ||
| Pulle, Philip | 1983 (1 year) | ||
| Pulltop [Japan] | 2017 to 2018 (2 years) | ||
| Puls | 2004 to 2015 (12 years) | ||
| Pulse Magazine Staff, The | 1995 to 1996 (2 years) | ||
| Pulser Soft. | 1985 to 1990 (6 years) | ||
| Pulsion | |||
| Pulsonic | 1983 to 1984 (2 years) | ||
| Pulver Chocolate & Chicle Mfg. Co. | 1899 to 1915 (17 years) | ||
| Pulver Co., Inc. [Rochester, NY, USA] | 1910 (1 year) | ||
| Puma-Sharks | 1988 (1 year) | ||
| Pummill, Jason C. | 1992 (1 year) | ||
| Punji | 2013 (1 year) | ||
| Punk & Kalap System | |||
| Punk Dev. | |||
| Purdy-Moore Mfg. Corp. | 1928 (1 year) | ||
| Pure Energy | 1992 to 1993 (2 years) | ||
| Pure Leisure | |||
| Pure Sound [Japan] | 2000 to 2002 (3 years) | ||
| Pure-Nap Products, Inc. [Chicago, IL, USA] | |||
| Puritan Machine Co. [Detroit, MI, USA] | 1904 to 1906 (3 years) | ||
| Purity Gum Co. [Milwaukee, WS, USA] | 1926 (1 year) | ||
| Purity-Pascal-PD [Germany] | |||
| Purom [Japan] | 1988 (1 year) | ||
| Purple Hills | |||
| Purple Soft. | 1995 (1 year) | ||
| Purple Star | 1994 (1 year) | ||
| Purple Unicorn Soft. | 2012 to 2013 (2 years) | ||
| Pursell, Harry D. [Washington Court-House, OH, USA] | 1890 to 1893 (4 years) | ||
| Purveyor Shuffleboard Co. [Chicago, IL, USA] | 1948 to 1950 (3 years) | ||
| Purvis, Hoyle | 1991 to 1995 (5 years) | ||
| Push Gaming, Ltd. | |||
| Pussy Cat [Japan] | 1991 to 1992 (2 years) | ||
| Puzzle Factory | 1990 to 1995 (6 years) | ||
| Puzzy | 1982 (1 year) | ||
| PW Publishing, Ltd. | 1983 (1 year) | ||
| PXL Computers | 1996 to 1997 (2 years) | ||
| Pygraphics | 1989 (1 year) | ||
| Pykhonin, V.A. | 1994 to 1995 (2 years) | ||
| PYN [Japan] | 1991 (1 year) | ||
| Pynard | 1988 to 1991 (4 years) | ||
| Pyramid Soft. | 1983 (1 year) | ||
| Pyramide | 1986 (1 year) | ||
| PyWare | 1988 (1 year) | ||
| PYX [Japan] | 1994 to 1995 (2 years) | ||
| Péreaux, G. [France] | 1912 (1 year) |