| Philips
| http://www.philips.com
|
| Phantagram
| http://www.phantagram.com/
|
| PF Magic
| http://www.petz.com
|
| Manu Pärssinen
| http://www.pelikonepeijoonit.net/
|
| Pelican
| http://www.pelican.com
|
| Peas Soft
| http://www.peassoft.com
|
| Peach Princess
| http://www.peachprincess.com
|
| Paradigm Entertainment
| http://www.pe-i.com/
|
| Pacific Coast Power & Light
| http://www.pcpandl.com/
|
| PCB Productions
| http://www.pcbproductions.com
|
| Parsoft Interactive
| http://www.parsoft.com
|
| Parker Brothers
| http://www.parkerbrothers.com
|
| Paramount
| http://www.paramount.com
|
| Paragon 5
| http://www.paragon5.com
|
| Papaya Studios
| http://www.papayastudio.com/
|
| Pan Interactive
| http://www.panvision.com
|
| Panther Software
| http://www.panther.co.jp
|
| Pandemic Studios
| http://www.pandemicstudios.com/
|
| Panda House
| http://www.pandahouse.net/
|
| Panasonic Interactive Media
| http://www.panasonic.com
|
| Puchi Pajama
| http://www.pajamas.ne.jp/
|
| Page 44 Studios
| http://www.page44.com/
|
| Packrat
| http://www.packratvg.com
|
| Merry Boys
| http://www.oz-game.jp/merryboys
|
| Oxygen Interactive
| http://www.oxygenint.com
|
| Outrage
| http://www.outrage.com
|
| OutLook Entertainment
| http://www.outlookentertainment.com
|
| Osiris Studios
| http://www.osirisstudios.com
|
| Origin Systems
| http://www.origin.ea.com
|
| Valkyria
| http://www.ordin-soft.com/
|
| Root
| http://www.orbit-soft.com/root/
|
| Orbit Soft
| http://www.orbit-soft.com
|
| Opus
| http://www.opus.co.jp/
|
| Opera Software
| http://www.opera.com/
|
| Opera
| http://www.opera.com
|
| Onkio Haus
| http://www.onkio.co.jp
|
| Omega Training Group, Inc.
| http://www.omegatraining.com/
|
| Oldergames.com
| http://www.oldergames.com
|
| Oddworld Inhabitants
| http://www.oddworld.com/
|
| O~3 Entertainment
| http://www.o3entertainment.com/
|
| Overmax Studios
| http://www.o-works.co.jp
|
| Jotai Kougaku Kenkyuusho
| http://www.nyoken.com/
|
| New World Computing
| http://www.nwcomputing.com
|
| Nuon-Dome
| http://www.nuon-dome.com
|
| NuFX
| http://www.nufx.com/index_nufx.htm
|
| NovaLogic
| http://www.novalogic.com
|
| Nokia
| http://www.nokia.com
|
| Noise Factory
| http://www.noise.co.jp/
|
| No Cliché
| http://www.nocliche.com/
|
| Adeline Software
| http://www.nocliche.com
|