| name | games | status | region | founded | closed | activity | |
|---|
| Parthenon |
49 | | JP | | | 2004/2014 | |
| Perceptron |
6 | active | JP | | | 2002/2012 | |
| Plantech |
4 | | JP | | | 1995/1997 | Actual name: 日本プランテック |
| PlatineDispositif |
5 | active | JP | | | 2004/2016 | Website: http://www.platinedispositif.net |
| PlatinumGames |
40 | active | JP | 2006 | | 2009/2022 | Full name: PlatinumGames Inc., プラチナゲームズ株式会社 (Platinum Games … |
| Playism |
41 | active | JP | 2006 | | 2012/2024 | Playism is a distribution and publication website founded by Active Gaming Media … |
| Pocket Pair |
10 | active | JP | 2015 | | 2019/2024 | |
| Polaris Studio |
2 | dead | JP | | | 1996/1997 | Actual name: スタジオポラリス |
| Pony Canyon |
232 | nomoregames | JP | 1966 | | 1982/2001 | Native name: ポニーキャニオン |
| Ponytale Soft |
19 | | JP | | | 1989/1995 | |
| Produce! |
4 | dead | JP | 1990 | 2015 | 1992/1999 | Produce Co., Ltd. was a Japanese video game company. Founded on April 6, 1990 by … |
| Project Aces |
6 | | JP | | | 2008/2017 | |
| Propeller |
10 | active | JP | 2004 | | 2004/2012 | Adult game brand by Will Co., Ltd |
| PSK |
14 | | JP | | | 1982/1988 | |
| Q Entertainment |
26 | | JP | | | 2005/2014 | Q Entertainment was founded in October 2004 by CEO Shuji Utsumi and CCO (Chief Creative … |
| Q-Games |
22 | active | JP | 2001 | | 2006/2016 | Q-Games is a small to medium games developer that works closely with both Sony and … |
| Quasar Soft |
6 | | JP | | | 1987/1990 | |
| Quinrose |
19 | dead | JP | 2005 | | 2006/2015 | On September 25, 2015, Quinrose's parent company Artmove officially suspended … |
| Quintet |
11 | nomoregames | JP | 1989 | 2000 | 1990/2003 | Quintet Co., Ltd. (株式会社クインテット, Kabushiki gaisha Kuintetto) was … |
| Racjin |
12 | | JP | 1995 | | 2001/2015 | Formerly: Racdym (until 2000) Based in Osaka, Japan http://www.racjin.co.jp … |
| Random House Co. Ltd. |
11 | dead | JP | 1983 | 1999 | 1983/1999 | Japanese publisher/developer. Not to be confused with the American book company. |
| RaSeN |
3 | | JP | | | 2001/2005 | |
| Red |
42 | active | JP | 1976 | | 1989/2014 | Founded in 1976 as 'Red Company', renamed in 2000 to 'Red Entertainment'. |
| Regista |
47 | active | JP | 2001 | | 2004/2024 | |
| Rejet |
7 | active | JP | 2009 | | 2011/2018 | |
| Renovation Game |
31 | name changed | JP | 1988 | 1991 | 1988/1991 | Internal development team of Telenet Japan. Succeeded by Riot. |
| Riverhill Soft |
98 | dead | JP | 1982 | 2004 | 1983/2000 | The company was initially known for the successful J.B. Harold Murder Club series … |
| RUNE |
8 | active | JP | 2004 | | 1999/2007 * | RUNE/CAGE http://www.rune.jp/ |
| Russell Games |
7 | | JP | | | 2007/2010 | |
| Sakai Akira |
6 | | JP | | | 1983/1992 | |
| Salio |
4 | | JP | | | 1988/1990 | |
| Sammy |
132 | name changed | JP | 1975 | | 1988/2007 | In 2001 Sammy Corporation created the subsidiary Sammy Entertainment, later changed … |
| Sandlot |
13 | | JP | 2001 | | 2002/2016 | Website: http://www.sandlot.jp |
| Sankindo |
7 | | JP | | | 1989/1991 | |
| Sanritsu |
29 | dead | JP | | 1991 | 1980/1991 | |
| SAS Sakata |
24 | active | JP | 1985 | | 1985/1996 | |
| ScapTrust |
16 | dead | JP | | | 1986/1990 | |
| Scarecrow |
5 | | JP | | | 1997/2002 | |
| Scoop Software |
19 | | JP | | | 1995/2002 | |
| Score Studios |
3 | active | JP | 2009 | | 2012/2020 | Score Studios is a Tokyo-based independent video game development studio established … |
| Scorpion Soft |
5 | | JP | | | 1987/1995 | |
| Sega |
2842 | active | JP | 1973 | | 1973/2024 | Sega Corporation 1940 Subsidiary of Sega Sammy Holdings since 2004. |
| Sekilala |
11 | active | JP | | | 2002/2009 | Website: www.cd-bros.co.jp/sekilala |
| Seta |
93 | dead | JP | 1985 | 2009 | 1982/2006 * | SETA Corporation (Super Entertainment and Total Amusement). |
| Shoeisha |
26 | active | JP | | | 1993/2001 | Shoeisha Co., Ltd. Website: http://www.shoeisha.co.jp |
| Shouei System |
21 | | JP | | | 1985/1999 | |
| Sigma Enterprises |
28 | | JP | | | 1980/1997 | |
| Silky's |
27 | active | JP | | | 1992/2010 | Website: http://www.silkys.jp |
| SIMS |
43 | active | JP | 1991 | | 1991/2016 | SIMS Co., Ltd. (シムス株式会社), which stands for "Soft development … |
| skip |
18 | active | JP | ? | | 2003/2015 * | skip Ltd. Website: http://www.skiptokyo.com |
