From Sega Retro
Which division of Sega actually existed.
At first there was an R&D1 and R&D2 Source from R&D1: https://web.archive.org/web/20030422213943/www.hitmaker.co.jp/top/lounge/corumun/site/corumun_txt22.html "
Koichi Izumi (designer) Heavyweight designer of a hit maker who engaged in numerous works such as "Rail Chase 2" "Lost World" "Magical Trocco Adventure" "Confidential Mission". My hobby is eating with my daughter who is 4 years old. And youkai freak. Most recent projects are Ms. Kumagai's projects. It is so-called Kumagai program. Kumagai Masafu 's schedule "There is no delay in the schedule, craftsmen's designer who will complement and expand the world view of the work" It is so. It is one of the staff who feels the thickness of the hit maker. "Hitmaker who is talking about now (former AM 3 lab) 10 years history"? I can not speak as much as history, but let's write it for the time being.
First of all, it was the first R & D department (1 lab) that became the mother of Hitmaker. It is a department mainly developing business game. The titles that were created were Super Monaco Grand Prix, Golden Ax, Bonanza Brothers, Gain Grand, Tetris, Aliens Storm, RadMobile, Shadow Dancer, Quiz homework forgotten, Last Master .... Okay" Source for R&D2: https://sega.jp/fb/album/09_shi/interview1.html "He belongs to the second R & D department (department that produces consumer software) as a planner. "
This was during the 80's
For the 90's. There is official production history websites: (AM1) https://web.archive.org/web/20030625045159/http://www.wow-ent.co.jp/jpn/products/history.html (AM2) https://web.archive.org/web/20040630004045/http://www.sega-am2.co.jp:80/jp/games/index.html (AM3) https://web.archive.org/web/20040610032406/http://www.hitmaker.co.jp/site/comphistory.html
Then here pages PDF's from official Japanese magazines documenting CS1-3, and AM1-6 https://retrocdn.net/images/c/c3/SSM_JP_19960614_1996-09.pdf (Page 138-145) https://retrocdn.net/images/9/98/SSM_JP_19980123_1998-03.pdf (Page 22, just CS1-3)
Then for 2000 onwards: https://retrocdn.net/images/9/9f/Edge_UK_089.pdf (Page 68-78)
Then from 2005 onwards
An overall official list announced in 2005 http://spong.com/article/8384/Sega-Management-and-Development-Structure-Outlined
Here are pages in Japanese that mention these divisions from 2005 onwards. This will include archived hiring sites from Sega, each division that is mentioned for a certain time periods will get mentioned.
GE1: http://kagu.plus.co.jp/case/1303/ (mentions how GE1 was formely Sonic Team) http://sonic.sega.jp/SonicChannelOld/creators/011/index.html (Interviewe with Sonic Team members stating position was around 2007) https://web.archive.org/web/20060429232156/http://sega.jp:80/corp/saiyo/20060125_1.html(Hiring page first appearing in 2005)
GE2: http://www.4gamer.net/specials/060831_psu_int/060831_psu_int_001.shtml http://trendy.nikkeibp.co.jp/article/column/20070918/1002715/ (Mentions employee and department belonging to, around 2007) https://web.archive.org/web/20060112044537/http://sega.jp:80/corp/saiyo/20051228_4.html (Hiring page first appearing in 2005)
GE3 http://www.4gamer.net/specials/060831_psu_int/060831_psu_int_001.shtml (offical interview with employees that mentions division) https://web.archive.org/web/20060212171118/http://sega.jp:80/corp/saiyo/20060120.html (Hiring page, mention Phantasy Star as products)
New Entertainment http://www.cri-mw.co.jp/product/interview/2008/ryu-ga-gotoku/2nt4hm0000000a0n.html (offical interview with employees that mentions division) https://web.archive.org/web/20051216235257/http://sega.jp:80/corp/saiyo/20050830.html (Hiring page in 2005)
Family Design R&D https://web.archive.org/web/20051217021635/http://sega.jp:80/corp/saiyo/20050328.html (Hiring page)
Sports Design R&D http://www.4gamer.net/specials/070522_sakatsuku_int/070522_sakatsuku_int_001.shtml (offical interview with employees that mentions division) https://web.archive.org/web/20051104103840/http://sega.jp:80/corp/saiyo/20050930.html (Hiring page first appearing in 2005)
AM1: https://web.archive.org/web/20150525170222/http://sega.jp/segavoice/vol28/ (offical interview with employees that mentions division) https://web.archive.org/web/20081019052038/http://sega.jp:80/corp/saiyo/parttime/20061027_1/ (Hiring page)
AM3 http://www.ne.jp/asahi/v/hara/ga_core/ga_core2_1.html https://web.archive.org/web/20051120000133/http://sega.jp:80/corp/saiyo/20050713.html (Hiring page first appearing in 2005)
Sega PC http://gamez.itmedia.co.jp/games/articles/0704/20/news118.html (Article about division) (offical interview with employees that mentions division) https://web.archive.org/web/20051217013344/http://sega.jp:80/corp/saiyo/20050606.html (Hiring page, Sega PC existed since 1995)
And about 2008 or 2010 onwards GE, New, Sports Design, Sega PC and AM3 are not mentioned anymore.
CS1 http://cedec.cesa.or.jp/2016/session/ENG/2190.html (Mentions division and employees) https://web.archive.org/web/20101016234521/http://sega.jp:80/corp/saiyo/parttime/20100823_1/ (Hiring page for 2010) http://sega-games.co.jp/recruit/parttime/20170531_1.html (Hiring page now)
CS2 http://www.4gamer.net/games/131/G013139/20111227008/ (Official interview with employees) https://www.inside-games.jp/article/2008/12/02/32507.html (Official interview with employees) http://sonic.sega.jp/SonicChannelOld/creators/026/index.html (Mentions division and employee) http://game.watch.impress.co.jp/img/gmw/docs/506/870/html/12.jpg.html http://www.gpara.com/infos/view/16024 (Mentions division and employee) https://www.hal.ac.jp/cross/report/2567 (Official interview with employees) https://web.archive.org/web/20101227181851/http://sega.jp:80/corp/saiyo/parttime/20101215_1/ (Hiring page in 2010 or so)
CS2 is interresting as it relates to two articles on Wikipedia which are in need of drastic change, Sonic Team and Sega Sports R&D. The third link proves that Sega Sports R&D does not exist anymore, and that the responsible producer is located at CS2. Sega Sports R&D does not have a hiring site after 2007, and genereally there is nothing to find on the internet if you search for "スポーツデザイン研究開発部 (Sega Sports Design)" after 2008. Finally on the Sonic Team article an important thing is that it stops around 2004. Both GE1 and CS2 links should hopefully provide with enough sources of what was afterwards. Not to mention that Sega Studio USA does not exist anymore: http://videogamesdaily.com/interviews/201010/interview-sonic-teams-takashi-iizuka/2/ (very last question of Interview is the quickest source I could find).
CS3 http://www.jasst.jp/symposium/jasst13tokyo/pdf/E4-1.pdf (Mentions game and division) http://game.watch.impress.co.jp/docs/interview/572264.html (official Interview mentions division) http://joshinweb.jp/game/cmt_30.html (official Interview mentions division) http://blogs.sega.com/2013/11/25/sega-3d-classics-space-harrier-3d-interview-with-developer-m2/
https://web.archive.org/web/20081216033130/http://sega.jp:80/corp/saiyo/parttime/20081105_1/ (First appearence per hiring page in 2008)
Sega Networks (Mobile) https://web.archive.org/web/20130310153435/http://sega.jp/corp/saiyo/parttime/20120228_1/
|Sega DD #2||Yu Suzuki||Template:Columns-list|
|Sega R&D1||Rikiya Nakagawa||Template:Columns-list|
Consumer development division
|Sega CD||Shinobu Toyoda||Template:Columns-list|
|GE1 R&D||Sonic Team + United Game Artists||Template:Columns-list|
|NE R&D||Amusement Vision + Smilebit||Template:Columns-list|
|Sports R&D||Amusement Vision + Smilebit||Template:Columns-list|
|CS1 R&D||same as before||Template:Columns-list|
|CS2 R&D||same as before||Template:Columns-list|
|CS3 R&D||same as before||Template:Columns-list|
|AM R&D||same as before||Template:Columns-list
|AM R&D||same as before|
Sega Networks focuses on development for smartphones and tablets.
|Department||Year of purchase/founding||Members from||Headed by||Titles|
|Sega Networks ||2012||Consumer R&D Division||Haruki Satomi||Template:Columns-list|
|Department||Division||Year of purchase/founding||Notable titles|
|The Creative Assembly||Sega Europe||2005||Template:Columns-list|
|Sports Interactive||Sega Europe||2006||Template:Columns-list|
|Three Rings Design||Sega of America||2011||Template:Columns-list|
|Hardlight Studio||Sega Europe||2012||Template:Columns-list|
|Relic Entertainment||Sega of America||2013||Template:Columns-list|
|Demiurge Studios||Sega of America||2015||Template:Columns-list|
|Ignited Artists||Sega of America||2014||Template:Columns-list|
|Amplitude Studios||Sega Europe||2016||Template:Columns-list|
Sega began contracting subsidiary studios in 1983.