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Companies (705)Years of activities
 P & M Coin
        1985 
 P Shoukai Soft. [Japan]
 
 P&A Games
 
 P&E Coin Games
 
 P&E Technologies, Inc. [Atlantic Highlands, NJ, USA]
 
 P&P Marketing, Inc. [Chicago, IL, USA]
1991 to 1998 
 P-1
        1990 
 P. & S. Machine Co. [Chicago, IL, USA]
        1947 
 P. & T. Club Equipment Co. [Kansas City, MO, USA]
        1935 
 P. Boulton Soft.
        1983 
 P.Pink.Pot
        1995 
 PA Corp.
        1991 
 PACE
1983 to 1986 
 Pace Mfg. Co. [Chicago, IL, USA]
1926 to 1948 
 Pacent Novelty Mfg. Co. [Utica, NY, USA]
        1936 
 Paces Races, Inc. [Chicago, IL, USA]
1935 to 1938 
 Pacific
        1995 
 Pacific Amusement Co. [Thousand Oaks, CA, USA]
        1965 
 Pacific Amusement Mfg. Co. [Los Angeles, CA, USA]
        1930 
 Pacific Bowling Co. [Los Angeles, CA, USA]
        1950 
 Pacific Electrical Works [San Francisco, CA, USA]
        1895 
 Pacific Electron Products Corp. [Long Beach, CA, USA]
 
 Pacific Games [Tokyo, Japan]
        1988 
 Pacific Novelty Mfg., Inc. [Marina Del Rey, CA, USA]
1981 to 1982 
 Pacific Polytechnical Corp.
        1982 
 Pacific Shuffleboard Co. [Los Angeles, CA, USA]
        1949 
 Pacific Soft.
        1984 
 Pack In Soft. [Japan]
1996 to 1999 
 Pack-In-Video Co., Ltd. [Japan]
1985 to 1997 
 Packard Mfg. Co. [Indianapolis, IN, USA]
1946 to 1949 
 Packel Instrument
        1976 
 Packrat Video Games
2004 to 2007 
 Paco Crew, The
        1987 
 Pacom Corp. [Japan]
        1979 
 Pactronics
1987 to 1991 
 Pactum [Spain]
        1989 
 Padua
1987 to 2008 
 Paensian Taiwan Ltd.
        1991 
 Page Mfg. Co. [Chicago, IL, USA]
        1909 
 Page, Robert W. [London, England]
        1886 
 Pagesoft
        1984 
 Pai
1996 to 1998 
 Paillard Vaucher Frères [Ste. Croix, Swizerland]
1890 to 1910 
 Paint-A-Ball Co., Ltd., The [Los Angeles, CA, USA]
        1931 
 PAL Co.
 
 Pal Kyouiku System [Japan]
 
 PAL System [Osaka, Japan]
1993 to 2002 
 Palace [Japan]
        2011 
 Palace Soft.
1984 to 1991 
 Palamedes Sales Co., Inc. [Fort Wayne, IN, USA]
        1933 
 Palco System Corp.
        1991 
 Palcom Soft., Ltd.
1987 to 1993 
 Palese Group [Italy]
        2010 
 Palitoy [Palectronics]
 
 Palm Computing [3Com div.]
1998 to 1999 
 Palm Tree Soft. [Japan]
1993 to 1994 
 Palm, Inc.
1998 to 2005 
 Palmer & Hartley [Birmingham, England]
1899 to 1901 
 Palmers Automatic Machine Syndicate [Birmingham, England]
        1899 
 Palmtex [CA, USA]
        1983 
 Palsoft
1991 to 1992 
 Palson
        1979 
 PAMCO [Pacific Amusement Mfg. Co.] [Chicago, IL, USA]
1932 to 1939 
 Pamcomms
1983 to 1987 
 Pan Amusements
 
 Pan Books
1983 to 1986 
 Pan Coast Amusement Co. [NY, USA]
1944 to 1946 
 PAN Vision AB
2003 to 2012 
 Pan-Q Soft. [Japan]
 
 Pana Enterprise Mfg. Co. [Pana, IL, USA]
        1907 
 Panac
        1988 
 Panafacom
        1983 
 Panasoft
1984 to 1988 
 Panasonic
1984 to 1998 
 Panda Design
2005 to 2011 
 Panda GmbH [Germany]
1965 to 1968 
 Panda Soft.
1982 to 1987 
 Panda, Inc. [Charlotte, NC, USA]
        1983 
 Pandevant & Roy, A. [France]
        1928 
 Pandora
1991 to 1993 
 Pandora Box [Japan]
1991 to 1994 
 Pandora Soft.
1985 to 1999 
 Pangea Soft.
1989 to 1990 
 Panic Production
        1993 
 Panic Soft. [Spain]
        1990 
 Panoramic Designs
1989 to 1993 
 Pansy Gum
 
 Pantages [USA]
        1946 
 Panther
1993 to 2007 
 Panther Games
1989 to 1991 
 Panther Soft. [Japan]
1988 to 1998 
 Panzerdog
        2019 
 Paokai Electronic Enterprise Co., Ltd. [Taiwan]
2003 to 2011 
 Paon Corp., Ltd. [Japan]
2010 to 2013 
 Papp, László
 
 Papyrus Publishing, Inc.
        1993 
 Para [Paradise of Amusement]
1994 to 2008 
 Paradigm Simulation
 
 Paradise
        1984 
 Paradise Science & Technology
        1997 
 Paradise Soft.
        1986 
 Parados
1990 to 1992 
 Paradox
1991 to 1992 
 Paradox Interactive
2000 to 2018 
 Paradox Soft., Ltd.
        1986 
 Paragon
1987 to 1991 
 Paragon Publishing
1994 to 1996 
 Paragon Soft.
1987 to 1994 
 Parallax
        1990 
 Parallel Systems
1982 to 1984 
 Paramount
1983 to 2008 
 Paramount Game Co., Inc. [Brooklyn, NY, USA]
        1928 
 Paramount Soft.
1983 to 1984 
 Paramount Vending Corp. [Chicago, IL, USA]
        1938 
 Paranoia
1991 to 2001 
 Paranormal Federation, The
1988 to 1992 
 Parasite
1992 to 1994 
 Pardue Novelty Co. [Chicago, IL, USA]
        1936 
 Parganasch
        1972 
 Pargner, W.L. [Munich, Germany]
        1950 
 Park
        1986 
 Park Leasing
 
 Park Novelty Co. [Kalamazoo, MI, USA]
        1903 
 Park Place Productions
        1993 
 Parker Bros. [Beverly, MA, USA]
1977 to 1996 
 Parker Co., E.D. [Springfield, OH, USA]
        1904 
 Parker Mfg. Co. [John J. Parker]
1966 to 1975 
 Parker Pencil Co. [USA]
        1927 
 Parker Soft.
        1984 
 Parker, W.F. [Oxford, PA, USA]
        1896 
 Parkhurst Bros. & Co. [Indianapolis, IN, USA]
        1897 
 Parkhurst, Paul
        1992 
 Parloc Service, Inc. [Indianapolis, IN, USA]
        1926 
 Parmly Engineering Co. [Cleveland, OH, USA]
1931 to 1932 
 Parrish Corp., The [Chicago, IL, USA]
        1933 
 Parrish, Inc., W.G. [Chicago, IL, USA]
 
 Parritt, F.T. [Bloomington, IL, USA]
        1897 
 PARS Electronics, Inc. [Charlotte, NC, USA]
 
 Parsec
 
 Partec, Inc.
        1992 
 Partners in Crime
1990 to 1992 
 Party Room 21
1991 to 1994 
 Pascal2 [Japan]
1987 to 1988 
 Pascavision
        1995 
 PASE
 
 Pasoket
1988 to 1991 
 Pasokon Shop Kouchi [Japan]
 
 Pasokon Yuushi
 
 Pasquale, A. [Belgium]
        1930 
 Pasquet, A. [Paris, France]
        1912 
 Pass-Time Table Co.
 
 Passow & Sons, C. [Chicago, IL, USA]
        1909 
 Passport Designs
1984 to 1989 
 Pastel Koubou
        1995 
 Pasteur, C. [Paris, France]
1908 to 1910 
 Patent Purchase Co. [New York, NY, USA]
        1892 
 Patra [Japan]
1996 to 1997 
 Patterson, Clara E. [New York, NY, USA]
        1888 
 Paul, S.O. [Philadelphia, PA, USA]
        1927 
 PAULIN
 
 Paupa & Hochriem [Chicago, IL, USA]
1896 to 1917 
 Pax Softonica [Japan]
1985 to 1986 
 Paxman Promotions [Geoffs Records div.]
1984 to 1987 
 Paxon
        1983 
 Payday
1992 to 1995 
 Payphone, Inc. [Clemmons, NC, USA]
        1986 
 PBI Soft., Inc. [Foster City, CA, USA]
1986 to 1988 
 PC Globe, Inc.
        1990 
 PC User
        1987 
 PC-Paroject [Japan]
        1994 
 PCCM
        1990 
 PCCW Japan [Pacific Century Cyber Work]
2002 to 2003 
 PCM Complete
1992 to 1993 
 PCP
        1999 
 PCSL
        1991 
 PCW
 
 PD Inc.
        1997 
 PDC [Pleasure Dome Crew]
        1994 
 PDI
1980 to 1981 
 Peach Soft. [Japan]
1991 to 1994 
 Peachtree Soft.
        1984 
 Peaksoft
1983 to 1987 
 Peanut Sales Co.
        1933 
 Pearl Abyss
        2019 
 Pearl Soft. [Japan]
1995 to 1997 
 Pearsall & Finkbeiner [Syracuse, NY, USA]
        1898 
 Pearson, Augustus W. [Marblehead, MS, USA]
        1894 
 Peartree Computers, Ltd.
        1986 
 Peerless Amusement Machine Co. [Los Angeles, CA, USA]
1927 to 1928 
 Peerless Coin Machine Co. [Syracuse, NY, USA]
        1916 
 Peerless Enterprises, Ltd.
        1958 
 Peerless Mfg. Co. [Chicago, IL, USA]
1933 to 1934 
 Peerless Piano Player Co. [St. Johnsville, NY, USA]
1898 to 1911 
 Peerless Products Co. [North Kansas City, MO, USA]
1915 to 1937 
 Peerless Sales & Products Co. [Kansas City, MO, USA]
        1932 
 Peerless Vending
        1920 
 Peerless Vending Machine Co., The [Pittsburg, PA, USA]
        1908 
 Pegas
        1990 
 Pegasoft
1991 to 1993 
 Pegasus Japan
1991 to 1994 
 Pegasus Soft.
1983 to 1991 
 Peggy O'Neal Cigar Corp. [New York, NY, USA]
        1930 
 PEI [Performance Enterprises, Inc.]
        1974 
 Peiser-De Haan, J.J.
        1955 
 Pekin Net
        1990 
 Pelagon Soft.
1985 to 1987 
 Pelatronics
 
 PELCO [Portable Elevator Mfg. Co.] [Bloomington, IL, USA]
        1940 
 Pelican Soft.
1988 to 1992 
 PEMHI [Spain]
        1986 
 Penazo Soft. [Spain]
1992 to 1993 
 Penguin
 
 Penguin Books
        1983 
 Penguin Soft.
        1983 
 Penguin Study Soft.
1984 to 1985 
 Penis-Fucktory
        1994 
 Penn Novelty Sales Co. [Philadelphia, PA, USA]
        1929 
 Penn Shuffleboard Co. [West Chester, PA, USA]
        1949 
 Pennant Novelty Co. [Chicago, IL, USA]
1933 to 1934 
 Pennington & Bennett
        1974 
 Pennsylvania Novelty Co. [New Brighton, PA, USA]
        1931 
 Penny Amusements
        1968 
 Penny Ante Amusement Co., Inc. [Riverside, CA, USA]
        1934 
 Penny Arcade [Beverly Hills, CA, USA]
        1975 
 Penny King Co. [Philadelphia, PA, USA]
1937 to 1940 
 Penny Products Vending Co. [Kansas City, MO, USA]
        1922 
 Pentagon
 
 Pentagon, The
        1986 
 Pentavision [Korea]
2006 to 2011 
 Peo Mfg. Co. [Rochester, NY, USA]
1928 to 1933 
 Peo Sales Corp. [Rochester, NY, USA]
        1935 
 People's Peanut Co. [New York, NY, USA]
        1904 
 Peppermint Kids [Japan]
        1994 
 Pepsi Soft. [Spain]
        1992 
 Pera GmbH
        1952 
 Perception
        1999 
 Perceptronics
        1982 
 Percival, Orin L. [Champaign, IL, USA]
        1896 
 Perea, Rogelio
 
 Pereaux, Gaston [France]
        1904 
 Perfect Games Co. [Brooklyn, NY, USA]
        1946 
 Perfection Automatic Machine Co. [Easton, PA, USA]
        1915 
 Perfection Mfg. Co. [Detroit, MI, USA]
        1897 
 Perfection Novelty Co. [New York, NY, USA]
1895 to 1896 
 Perfection Novelty Co. [Philadelphia, PA, USA]
        1914 
 Perfection Soft.
1983 to 1984 
 Perfume Ejector Co. [New York, NY, USA]
        1895 
 Periscope Soft.
        1991 
 Perkins Engineering
1980 to 1986 
 Perkins, Steven B.
        1989 
 Perma-Top Corp. [Chicago, IL, USA]
        1949 
 Permanent Memory Systems
        1986 
 Perosi, Charles
        2004 
 Perpichnick [Chicago, IL, USA]
        1897 
 Perry [Yeovil, England]
        1875 
 Perry, G.F. [Johnston, SC, USA]
        1948 
 Perry, Milt
        1982 
 Persichini [UK]
        1915 
 PerSoft
        1982 
 Personal Companion Soft.
        1992 
 Personal Computer Games
        1984 
 Personal Computer World
1983 to 1984 
 Personal Music Corp. [Newark, NJ, USA]
        1946 
 Personal Peripherals, Inc. [Irvin, TX, USA]
        1984 
 Personal Soft.
1978 to 1979 
 Peschlow Automaten [Berlin, Germany]
        1920 
 Pessers & Moody [London, England]
1898 to 1908 
 Pessers, Moody, Wraith & Gurr [PMWG] [London, England]
1905 to 1924 
 Pet Boat
        1983 
 PETACO [Proyectos Electromecanicos de Tanteo y Color] [Madrid, Spain]
1966 to 1981 
 Peter Arndt
        1987 
 Peter Gordon
 
 Peter Mfg. Co. [St. Louis, MO, USA]
        1904 
 Petersen Co., T.W. [Chicago, IL, USA]
        1905 
 Petersen, Edvard Agner Koj [Copenhagen, Denmark]
1947 to 1956 
 Peterson Bros. [Chicago, IL, USA]
        1935 
 Peterson, John W. [Chicago, IL, USA]
        1896 
 Petit [Japan]
        1996 
 Petra [Japan]
        1996 
 Petrovszky, Jozsef & Rota, Szabolcs
 
 Petsoft
        1978 
 Petulka Soft.
        1991 
 Peyper [Spain]
1977 to 1994 
 PF Soft.
 
 Pfeiffer [Stuttgart, Germany]
        1952 
 Pflaum Verlag Munchen
        1985 
 PGD, Inc. [EL Cajon, CA, USA]
1985 to 1987 
 PGI [Pro Games, Inc.] [Pasadena, CA, USA]
 
 PGI [Programable Games, Inc]
 
 Phalibois, Jean [France]
        1895 
 Phank's
        1994 
 Phantagram
        1995 
 Phantom EFX
2009 to 2013 
 Phantom Soft.
        1983 
 Phantom Systems
 
 Phelios Development
        1995 
 PhenixSoft
        2003 
 Phenomedia Publishing GmbH
2000 to 2007 
 Pheonix International, Inc.
 
 PHF
1992 to 1995 
 PHG
1986 to 1988 
 Phi
        1981 
 Philadelphia Badge Co. [Philadelphia, PA, USA]
        1928 
 Philadelphia Toboggan Co. [Philadelphia, PA, USA]
        1947 
 Philidor Soft.
        1981 
 Philippe, Henry
        1989 
 Philipps & Sohne, J.D. [Bockenheim, Germany]
 
 Philips Corp.
1975 to 1986 
 Philips Interactive Media, Inc.
1985 to 1998 
 Philips Italy
 
 Philips Spain
1985 to 1989 
 Philko Corp. [Seoul, Korea]
1987 to 1990 
 Phillips Farm Supply, Hardware & Furniture [Carbondale, IL, USA]
1904 to 1912 
 Phillips, John
1984 to 1988 
 Philon
 
 Philon of Byzantium [Byzantium, Ancient Greece]
        -250 
 Phinnex Co., Ltd.
1993 to 1994 
 Phipps Associates
1982 to 1984 
 Phoebus Corp.
 
 Phoenix 2000
        1990 
 Phoenix [Japan]
1988 to 1991 
 Phoenix Games
2003 to 2006 
 Phoenix Games & Amusements
 
 Phoenix Publishing Associates
        1983 
 Phoenix Soft.
1983 to 1984 
 Phoenix Works [Birmingham, England]
        1910 
 Phonolux
        1944 
 Photomovette, Inc. [New York, NY, USA]
        1928 
 Phuture
1995 to 1998 
 Pi Soft.
        1983 
 Piacci Co., Ltd. [Japan]
        2012 
 Pianolectra Co., The
        1907 
 Pianora Co., The [NY, USA]
        1905 
 Pianotist Co., The [NY, USA]
        1905 
 PIC [Pasadena International Corp.] [Pasadena, CA, USA]
        1989 
 Piccadilly Soft.
        1981 
 Pick & Choose
1986 to 1989 
 Pick & Co., Albert [Chicago, IL, USA]
1896 to 1910 
 Pick, Simon
 
 Picmatic S.A. [Bilbao, Spain]
1990 to 2000 
 Pico Soft
        1991 
 Picturesque
 
 Pierce Tool & Mfg. Co. [Chicago, IL, USA]
1932 to 1937 
 Pierce, Arthur M. [Brooklyn, NY, USA]
        1888 
 Pierce, Clifford G.
 
 Piesen Mfg. Co. [USA]
        1928 
 Pigallio, Lilian
 
 Pikii [Japan]
2017 to 2019 
 Piko Interactive LLC
2013 to 2017 
 PikPok
2011 to 2019 
 PIL [Japan]
1995 to 1997 
 Pilat Informatique Educative
        1985 
 Pilot Machine Co.
 
 Pilot Trainer Sales Co. [New York, NY, USA]
        1944 
 Piloux
 
 Pinard
        1987 
 Pinball Factory, The [Australia]
        2005 
 Pinder, G. [UK]
        1927 
 Pine Tree State Machine Co. [Somersworth, NH, USA]
        1907 
 Pineapple
1989 to 1991 
 Pineapple Soft.
1985 to 1988 
 Pinel & Pinel [Paris, France]
        2010 
 Pink Pig Soft.
1997 to 1998 
 Pinksoft [Korea]
        2005 
 Pinkysoft [Japan]
1990 to 1993 
 Pinnacle
        1995 
 Pinpoint Publishing
        1986 
 Pinprint
1999 to 2001 
 Pinstar
        1985 
 Pinto Bros.
 
 Pioneer Automatic Merchandising Corp. [Detroit, MI, USA]
        1931 
 Pioneer Co., Ltd. [Japan]
1984 to 2016 
 Pioneer Coin Machine Co. [Chicago, IL, USA]
        1946 
 Pioneer Games Co. [Minneapolis, MN, USA]
        1933 
 Pioneer LDC, Inc. [Japan]
1993 to 2001 
 Pioneer Vending Service [Brooklyn, NY, USA]
        1938 
 Pionesoft
2004 to 2005 
 Pipeline Soft.
        1992 
 Pippin, Inc.
 
 Piquemal, Michel
 
 Piranha
1986 to 1987 
 Pirate Soft.
1987 to 1988 
 Piston Soft. [Japan]
        1997 
 Pitkin, Irvin L. [Ravenna, OH, USA]
        1892 
 Pitman Soft., Steve
1987 to 2010 
 Pitney-Bowes, Inc. [Stamford, CT, USA]
        1946 
 Pixel Co.
1986 to 1987 
 Pixel Federation Games
2014 to 2019 
 Pixel Productions
1982 to 1983 
 Pixel Technologies
        1990 
 Pixel Toys
 
 Pixio
2016 to 2019 
 Pixodust Games
        2019 
 Pixy Bell [Japan]
        1992 
 Pixy Games, Inc.
        2002 
 Pizon Bros.
        1976 
 PJ Soft.
1987 to 1989 
 PJM
1985 to 1987 
 PJP
 
 PKWARE, Inc.
        1993 
 Plagwitzer Musikwerke [Leipzig, Germany]
        1895 
 Plamor Novelty Co. [Amarillo, TX, USA]
        1932 
 Planet [Japan]
1993 to 1995 
 Planet Earth Ent. [Glendale, CA, USA]
        1996 
 Planet Mfg. Co. [Detroit, MI, USA]
        1942 
 Plarium Global, Ltd.
2014 to 2019 
 Plasma Soft.
1983 to 1984 
 Plauze
1993 to 1994 
 Play Byte
1992 to 1993 
 Play It
2003 to 2005 
 Play It!
        1984 
 Play System
 
 Play Video
        1982 
 Play Works
        1998 
 Play-On.it [San Mango Piemonte, Italy]
2008 to 2009 
 Play-Write Corp. [Akron, OH, USA]
        1950 
 PlayAround
        1982 
 Playbar
        1987 
 Players Premier
1985 to 1991 
 Players Soft.
1985 to 1991 
 Playfield
        1990 
 PlayFirst
2005 to 2011 
 Playism [Japan]
        2017 
 Playjeux
        1985 
 Playlogic Ent., Inc.
2006 to 2009 
 Playmark
1990 to 2006 
 Playmates Interactive Ent.
1994 to 1997 
 Playmatic
1970 to 1987 
 Playmec [Bologna, Italy]
        1975 
 Playmont
1984 to 2010 
 Playmore Corp. [Japan]
2002 to 2003 
 PlayPak Systems Inc. [PA, USA]
        1997 
 Playrix Ent.
2008 to 2019 
 Playskool
        1978 
 Playsoft
 
 Playtime
        1988 
 Playtron srl [Roma, Italy]
        2010 
 Playtronic srl [Argentina]
        1983 
 Playvision [Italy]
1984 to 1986 
 Pleasantrees
        1982 
 Pleasure Golf, Inc. [Chicago, IL, USA]
        1930 
 Pleno Co., The [Japan]
        2010 
 Plinke, Emil
1952 to 1953 
 Plissken
        2002 
 PLK
 
 Pluricom [Italy]
1999 to 2001 
 Plus Data
        1984 
 Plush
1994 to 2009 
 Pluto
        1984 
 PM
1981 to 1987 
 PM Athletic Co.
        1897 
 PM Studios, Inc.
2009 to 2018 
 PMA
        1983 
 PMC Electronics Co., Inc. [Southampton, PA, USA]
1973 to 1975 
 Poby
        1993 
 Pocket Direct
2006 to 2018 
 Pocket Money Soft.
1984 to 1985 
 Poelke, J.
        1954 
 Poff, Joseph A. [Lawrence, KS, USA]
        1892 
 Pogue, Miller & Co. [Richmond, IN, USA]
        1910 
 Point Getter
        1989 
 Point of View Computing
        1993 
 PointSoft
        1999 
 Poison
1990 to 1992 
 Poison Breath [Japan]
1996 to 1997 
 Pokemon Co., The
2016 to 2019 
 PokerTek, Inc. [Matthews, NC, USA]
 
 POL [People of Liberty]
1999 to 2016 
 Polar Bear Enterprises, Inc. [Mt. Clemens, MI, USA]
        1981 
 Polaroid
 
 Polarsoft
 
 Polarware
1985 to 1999 
 Police Sowtver
 
 Policy [Japan]
1984 to 1986 
 Polistil [Italy]
1982 to 1984 
 Pollock, Graham
1985 to 1986 
 Poly
        1983 
 Poly-Data Microcenter
 
 Poly-Versa-Technology Soft.
        1980 
 Polydor K.K.
        1993 
 Polygon Magic
        1999 
 Polygram Magic of Japan
1994 to 1999 
 Polymax
        1982 
 PolyMorphic Systems
        1976 
 Polyphon Musikwerke [Leipzig, Germany]
1895 to 1910 
 Polytechnik Karl-Marx-Stadt
        1985 
 Polyvox [Brazil]
 
 POM Distributeur [France]
 
 Pompey Pirates
 
 Poncet, M. [Villeurbanne, France]
1899 to 1914 
 Pong Enterprises, Ltd. [Winnipeg, MB, Canada]
 
 Ponser Co., George [Chicago, IL, USA]
1945 to 1947 
 Ponta Soft
1989 to 1990 
 Pony Canyon, Inc. [Japan]
1983 to 2001 
 PonyTail Soft
1989 to 1996 
 Pool Bowling Mfg. Corp. [Steger, ILL, USA]
 
 Poole Bros., Mfgrs. [Chicago, IL, USA]
1903 to 1904 
 Poolware
 
 Poose & Co., Keith [London, England]
 
 POP Game
        1982 
 POP Soft.
1990 to 1994 
 Pop-A-Shot, Inc. [NC, USA]
        1985 
 PopCap Games, Inc.
        2011 
 Popcom Soft
1986 to 1992 
 Popcore Games
2018 to 2019 
 Pope Automatic Co.
        1909 
 Pope, Clarence R. [East St. Louis, IL, USA]
        1904 
 Pope, William R. [New York, NY, USA]
1887 to 1890 
 Popper & Co. [Leipzig, Germany]
1897 to 1930 
 Poppo Co., Ltd. [Japan]
1994 to 1995 
 Poppy Soft
1983 to 1984 
 Popular Computing Weekly
1982 to 1986 
 Popular Games, Inc. [Minneapolis, MN, USA]
        1927 
 Popy Electronics [Japan]
        1982 
 Portent Adventures
 
 Portland Novelty Works [Portland, OR, USA]
        1901 
 POS Automatenbau
1951 to 1954 
 Poseidon
        1986 
 Positive [Spain]
1989 to 1991 
 Positive Image
        1984 
 Posse Press
1993 to 1999 
 Postage Stamp Machine Co. [New York, NY, USA]
 
 Postern
1983 to 1984 
 Postum Cereal Co., Ltd. [Battlecreek, MI, USA]
        1904 
 Potomac Mortgage Co.
1980 to 1981 
 Potplant
        1989 
 Potter
1983 to 1987 
 Pousse, Eric
 
 POV
1989 to 1999 
 POW [Planning Office WADA] [Japan]
1993 to 1996 
 POW!
1995 to 1996 
 Power Computing
        1996 
 Power House, The [UK]
1986 to 1988 
 POWER Soft. [Paris, France]
1984 to 1986 
 Power System
1993 to 1996 
 PowerBrain
 
 Powerfist Productions
1994 to 1995 
 Powerful Boys
1989 to 1990 
 Powerhouse Technologies
1998 to 1999 
 Powerplay Ent.
 
 Powerslave Soft.
        1994 
 Powersoft, Inc.
        1978 
 PPI
        1984 
 PPP Ediciones
1986 to 1987 
 PQube, Ltd.
2012 to 2019 
 Practical Computing
        1983 
 Practical Novelty Co.
 
 Practical Programs
1985 to 1989 
 Precision Games
1986 to 1987 
 Precision Sales Co. [USA]
 
 Precision-Bilt Co. [Boston, MA, USA]
        1947 
 Prehis-To
1986 to 2004 
 Premier Automatic Machine Co.
 
 Premier Coin Machine Mfg. Corp. [New York, NY, USA]
1946 to 1947 
 Premier International Corp.
        1994 
 Premier Microsystems
1982 to 1983 
 Premier Novelty Co. [Chicago, IL, USA]
        1919 
 Premier Technology Co. [Bensenville, IL, USA]
1984 to 1996 
 Premier Vending Machine & Sales Co. [Chicago, IL, USA]
        1933 
 Premium Games
 
 Premium Novelty Works [Chicago, IL, USA]
        1927 
 Prentice-Hall
        1987 
 PRES
1984 to 1990 
 Presence
1991 to 1994 
 PResS Adventure, The
 
 Prestige
1992 to 1993 
 Preston Computer Games
1984 to 1987 
 Prevost, C.
        1988 
 Prevue Networks
        1991 
 Price & Castell [London, England]
        1900 
 Price & Teeple Co. [Chicago, IL, USA]
 
 Price Collar Button Machine Co. [USA]
        1905 
 Price Kayem Partnership
        1984 
 Price, Arthur [Freeport, NY, USA]
        1930 
 Prichard, Robert S. & Wertz, Charles V. [Portsmouth, OH, USA]
        1904 
 Pride Utilities
1985 to 1986 
 Priess
        1930 
 Primasoft
        1984 
 Prime Peaks
        2015 
 Prime Systems Corp. [Prime Group]
2000 to 2001 
 Primetec Investments, Ltd.
        2001 
 Primion Digitek, SL
        1999 
 Prince
        2001 
 Princess
        2002 
 Princess Soft
2001 to 2004 
 Prinztronic
1976 to 1981 
 Prism Arts
1995 to 2000 
 Prism Leisure Corp. plc [UK]
1984 to 1996 
 PRISM Micro-informatique S.A. [France]
 
 Prisma Engineernig Srl [Italy]
 
 Prisma Soft. [UK]
        1990 
 Prismasoft
        1992 
 Pro
 
 Pro Illusion [Japan]
        1996 
 Pro Kit
        1988 
 Probe Soft.
1985 to 1992 
 Probes, C.K. [Elmira, NY, USA]
        1904 
 Proceed [Japan]
1990 to 1992 
 Processor Technology Corp.
        1976 
 Procom Soft.
        1983 
 Procyon
1990 to 1993 
 Prodatron
1992 to 2007 
 Producciones Cicero, S.A. [Spain]
 
 Produce
1999 to 2000 
 Proein Soft Line [Spain]
1985 to 1991 
 Proel
1979 to 1980 
 Professional Games Srl [Italy]
 
 Professional Soft.
        1983 
 Profisoft [Germany]
1983 to 1985 
 Progame Electronic Corp. [Taiwan]
2006 to 2011 
 ProGames [Poland]
        2014 
 Program Bureau, The
 
 Program Design, Inc.
        1978 
 Program Direct
        1982 
 Programma International, Inc.
1978 to 1980 
 Programma Soft.
        1979 
 Programmers Guild
1982 to 1983 
 Programs in Education
 
 Progress [Japan]
1992 to 1994 
 Progressive Mfg. Co. [Pana, IL, USA]
1906 to 1907 
 Progressive Novelty Co. [Pana, IL, USA]
1899 to 1900 
 Project Coin Machines, Ltd. [Surrey, England]
1991 to 2009 
 Project Expansions
1987 to 1988 
 Project G
 
 Project LIBC Group
        1993 
 Project M
        1990 
 Project Makkusu
        1990 
 Project Team Interrupt
1990 to 1991 
 Project Two Interactive BV
        1998 
 Projekt Snc [Italy]
 
 Prolific
        1995 
 Proma
1983 to 1994 
 Promat Co., Ltd [Korea]
1993 to 1997 
 Promisence
 
 Promopublications [France]
 
 Promotion Soft
        1993 
 Pronto
1983 to 1985 
 Proper [Japan]
 
 Prophetron, Inc. [MS, USA]
        1969 
 ProSoft [Korea]
1986 to 1990 
 Prosol
        1984 
 Prosperity Coin Machine Co. [USA]
 
 Prosumer
        1983 
 Protect Kougaku Kenkyuukai
        1993 
 Protek Computing
1983 to 1984 
 Proteus International [Paris, France]
        1978 
 Protocision Engineering
        1964 
 Proton Soft.
        1991 
 Prototype [Japan]
2010 to 2018 
 Prowse & Co., Ltd., Keith [London, England]
        1910 
 Proxima Soft. [Czech Republic]
        1990 
 Proxyon
1991 to 1993 
 PRW [Phonographic Ruffle & Walker] [London, England]
        1969 
 PSE [Project Support Engineering] [Sunnyvale, CA, USA]
1975 to 1978 
 Psikyo
1993 to 2005 
 Psion
1981 to 1985 
 PSK [PC Shop Koshi] [Japan]
1983 to 1988 
 PSM Srl [Italy]
        2009 
 PSS [Personal Soft. Services]
1982 to 1993 
 PSV S.A. [Spain]
        1980 
 Psy-Force Project [Japan]
 
 Psychaedelic Hedgehog Soft.
1989 to 1992 
 Psycho Hacking Force
1990 to 2002 
 Psyclapse
1988 to 1990 
 Psycograph Co., The [Minneapolis, MN, USA]
        1931 
 Psycore
 
 Psygnosis, Ltd.
1986 to 2000 
 Psyhix
 
 Psytronik Soft.
2010 to 2013 
 Pubblirome [Italy]
1985 to 1991 
 Public Scale Co. [Chicago, IL, USA]
1925 to 1926 
 Public Soft.
        1986 
 Publiflash [Italy]
1985 to 1986 
 Puffin Books
        1984 
 Puget Sound ADAM Network
 
 Pukall, Alexandre
1986 to 1997 
 Pulltop [Japan]
2017 to 2018 
 Puls
2004 to 2015 
 Pulse Magazine Staff, The
1995 to 1996 
 Pulser Soft.
1985 to 1990 
 Pulsion
 
 Pulsonic
1983 to 1984 
 Pulver Chocolate & Chicle Mfg. Co.
1899 to 1915 
 Pulver Co., Inc. [Rochester, NY, USA]
        1910 
 Punji
        2013 
 Punk Development
 
 Purdy-Moore Mfg. Corp.
        1928 
 Pure Energy
1992 to 1993 
 Pure Leisure
 
 Pure-Nap Products, Inc. [Chicago, IL, USA]
 
 Puritan Machine Co. [Detroit, MI, USA]
1904 to 1906 
 Purity Gum Co. [Milwaukee, WS, USA]
        1926 
 Purple Hills
 
 Purple Star
        1994 
 Pursell, Harry D. [Washington Court-House, OH, USA]
1890 to 1893 
 Purveyor Shuffleboard Co. [Chicago, IL, USA]
1948 to 1950 
 Pussy Cat [Japan]
1991 to 1992 
 Puzzy
        1982 
 PXL
        1996 
 PXL Computers
        1997 
 PYN [Japan]
        1991 
 Pynard
1988 to 1991 
 PyWare
        1988 
 PYX [Japan]
1994 to 1995 
 Péreaux, G. [France]
        1912