Activate
Web : http://www.activateplay.comPhone : 65 6837 0366
Address : Activate Interactive Pte Ltd 81 Ubi Ave 4 UB.One, #08-28 Singapore 408830
Sector : Facebook games
Established date: 1997
Linkedin: http://www.linkedin.com/company/activate-sdn-bhd
Adumsoft
Web : www.adsumsoft.co.nrAsiasoft Online Pte Ltd
Web : http://www.asiasoftsea.net/Phone : 65 6825 8500
Address : 5, Tampines Central 1, #04-01, Tampines PlazaSingapore 5295416825 8500
Sector :  Online Games and portal
Established date: 2001
Linkedin: http://www.linkedin.com/company/asiasoft-online
Boomzap Entertainment
Web : http://www.boomzap.comPhone : 6597686528
Address : Yio Chu Kang Rd #04-01 Seasons Park, Singapore, Singapore Postal Code: 787080
Sector : Multiple - help games get published by small developers
Established date: 2005
Linkedin: http://www.linkedin.com/company/boomzap-entertainment
Cabal Entertainment Software
Web : http://www.cabalsoft.comAddress : 0 JALAN BESAR #11-05 SIM LIM TOWER Rochor Singapore 208787 Singapore.
Sector : iPhone
Established date: 2005
Linkedin: http://www.linkedin.com/company/cabal-entertainment-software
Cherry Credits
Web : http://cherrycredits.com/Phone : (65) 6747-6676
Address : 61 Kaki Bukit Ave 1 #04-30 Singapore 417943
Sector : Online payments / scratch cards / gaming
Established date: ~2007
Linkedin: http://www.linkedin.com/company/cherry-credits-pte-ltd
Corous360
Web : http://www.corous360.com/Phone : 65 6886 9292
Address : 29, Tai Seng Avenue, #05-01, Natural Cool Lifestyle Hub, Singapore 534119 Singapore
Sector : Cloud service for games
Established date: 2005
Daylight Studios
Web : http://www.day-lightstudios.com/Address : 1 Fullerton Road #02-01 Singapore, Singapore 049213 Singapore
Sector : Mobile games
Established date: 2011
Linkedin: http://www.linkedin.com/company/daylight-studios
Double Negative Singapore
Web : http://www.dneg.comPhone : 65 65111960
Address : Double Negative Visual Effects1 Fusionopolis WayConnexis South #07-01Singapore 138632
Sector : Special effects for film
Established date: 2009
Linkedin: http://www.linkedin.com/company/double-negative
Electronic Arts
Web : http://www.ea.com/asiaPhone : 65917433
Address : Fusionopolis (Connexis Tower) #07-10, 1 Fusionopolis Way, 138632
Sector : EA's IPs
Established date: ~2005
Linkedin: http://www.linkedin.com/company/electronic-arts
Forever Young Studio
Web : http://www.foreveryoungcreative.com/Sector : Some mobile
Established date: 2008 
Games Exchange Alliance
Web : http://www.gxa.org.sgSector : Helps game companies get their products into Asia
Established date: ~1999
Linkedin: http://www.linkedin.com/groups?home=&gid=38716
Garena Online Pte Ltd
Web : http://www.garena.com.sg/Address : Murray Terrace Food Alley (U/C)18 Murray Street (S)079527
Sector : Online games
Established date: 2002
Linkedin: http://www.linkedin.com/company/garena
Immersive Play Spaces Pte Ltd
Web : http://www.ipspaces.com/ http://www.immersiveplay.sg/Address : 22 Geylang Lor 21A, Prosper Industrial Building #01-01E, Singapore 388431
Sector : Game content for iOS and web.
Established date: 2008
Linkedin: http://www.linkedin.com/company/1059792
Interactive Digital Dreams Pte Ltd
Web : http://www.id-dreams.com/Phone : 65 6549 7485
Address : 3 Temasek AvenueLevel 21 Centennial TowerSingapore 039190
Sector : Virtual Worlds
Established date: 2001
Kentura
Web : www.kentaura.comL.A.I Singapore Pte Ltd
Web : http://www.laigames.comSector : Coin operated Arcade machines
Established date: 1999
Lionstork Studios
Web : www.lionstork.comSector : Web and mobile games.
Lucasfilm Animation Company Singapore
Web : http://www.lucasfilm.com/divisions/singapore/Established date: 2004
Linkedin: http://www.linkedin.com/company/lucasfilm-animation
Magma Studios Pte Ltd
Web : http://www.magma-studios.com/Phone : 65 6226 1832
Address : 12 Prince Edward Road #02-03 Podium B Bestway Building Singapore 079212
Sector : Online, mobile
Established date: 2005
Linkedin: http://www.linkedin.com/company/magma-studios-pte-ltd
Mikoishi
Web : http://www.mikoishi.comAddress : 115A Amoy St, Singapore 069935 p: 62247306
Sector : mobile
Established date: 2001
Linkedin: http://www.linkedin.com/company/mikoishi
Nabi Studios Pte Ltd
Web : http://www.nabistudios.comSector : Physics fighting game
Established date: 2006
Nexgen Studio Pte Ltd
Web : http://www.nexgenstudio.comPhone : 6333 0148
Address : 179 River Valley Road  Singapore 179033
Sector : Mobile
Established date: 2003
Nordasia Partners Pte. Ltd.
Web : http://www.nordasiapartners.comSector : Connecting Nordic regions with Asia
Established date: 2011
Linkedin: http://www.linkedin.com/company/nordasia-partners-pte.-ltd
Nubee
Web : www.nubee.sg
Personae Studio
Web : http://www.personaestudios.comPhone : 65 6285 0077
Address : Block 212, Hougang Street 21 Unit #03-349 & #04-349Singapore 530212 
Sector : Mobile
Established date: 2007
Planet Arkadia Pte Ltd
Web : http://www.planetarkadia.com/Address : 16 Raffles Quay #33-03 Hong Leong Building Singapore, 048581 Singapore
Sector : MMORPG
Established date: 2010
Linkedin: http://www.linkedin.com/company/arkadia-studios
Playware Studios
Web : http://www.playwarestudios.comPhone : 65 64120728
Address : 71 Ayer Rajah Crescent #04-16, Singapore 139951
Sector : Educational / Learning Games
Established date: ~2004
Linkedin: http://www.linkedin.com/company/playwarestudios-asia-pte-ltd
Rainbow Media Pte Ltd
Web : http://www.rbwmedia.sg/Sector : Online Games
Established date: 2007
Razer (Asia-Pacific) Pte Ltd
Web : http://www.razerzone.comAddress : JTC Corporation514 Chai Chee Lane (S)469029
Sector : Gaming hardware
Established date: 1998
Linkedin: http://www.linkedin.com/company/razer
Real U Pte Ltd
Web : http://www.realu.com.sg/Phone : 62385720
Address : 128A Tanjong Pagar Road
Sector : dtp subsidiary, MMORPG based on Tad William's Otherland series
Established date: 2007
Linkedin: http://www.linkedin.com/company/realu
RedSteam Gameloft
Web : http://redsteam.netPhone : 65 63383009
Address : 11C Mount Sophia #B2-16 Singapore 228467
Sector : Gameloft subsidary
Established date: 2009
Rock Nano Private Ltd
Web : http://www.rocknano.comPhone : (65) 6396 0368
Address : 71-c Sultan Gate, Singapore 198496
Sector : Digital advertising and entertainment - also has offices in Korea and Japan
Established date: 2009
Linkedin: http://www.linkedin.com/company/rock-nano-private-limited
SEA Gaming Pte Ltd
Web : http://www.seagaming.netPhone : 65 6818 6247
Address : Level 39 Marina Bay Financial Centre Tower 210 Marina BoulevardSingapore 018983
Sector : Helping publishers and developers setup in SE Asia
Established date: 2011
Linkedin: http://www.linkedin.com/company/sea-gaming-pte-ltd
Secret base
Tech Futurism Pte Ltd
Web : http://techfuturism.comPhone : 659725 3031
Address : Tech Futurism Pte Ltd c/o Blk 71 Ayer Rajah Crescent#02-18 Singapore 139951
Sector : Serious games developer
Tecmo Koei Games Singapore
Web : www.koei.com.sgPhone : 6220758
Address : China Square  18 Cross Street, Singapore 0484236220 7581
Sector : Console games and more
Established date: 2004
Linkedin: http://www.linkedin.com/company/koei-entertainment-singapore
TheMobileGamer Pte Ltd
Web : http://www.tmgamer.co/Address : 276B South Bridge Road, Singapore, Singapore 058825.
Sector : Mobile games
Established date: 2008
Linkedin: http://www.linkedin.com/company/themobilegamer-tmg-
Think! Studio
Web : http://www.thinkstudio.com.sgPhone : 6634 3290/ 91
Address : Econ Industrial Bldg  2 Ang Mo Kio Street 64, Singapore 5690846853 5582
Sector : Mobile games
Established date: 2008
Tyler Projects Pte. Ltd
Web : Tyler Projects Pte LtdAddress : 1008 Toa Payoh North #04-09/11 Singapore 318996
Sector : Social and Mobile games
Established date: 2007
Ubisoft Singapore
Web : http://www.ubi.comPhone : 65 6408 3000
Address : 3 Fusionopolis Way #13-22, Symbiosis Singapore, Singapore 138633
Sector : Console games and more
Established date: 2008
Linkedin: http://www.linkedin.com/company/ubisoft
Van der Veer Games
Web : http://www.vanderveergames.com/Address : 37 CASUARINA ROAD  Ang Mo Kio North-East Singapore 579425 Singapore. 
Sector : Board and mobile games
Established date: 1998
Vocanic
Web : http://www.vocanic.com/Phone : (+65) 6270 7292
Address : Vocanic Pte Ltd 26 Duxton Road Singapore 089490
Sector : Marketing and Advertising
Established date: 2005
Linkedin: http://www.linkedin.com/company/vocanic
Weike Gaming Technology
Web : http://www.weikegaming.comPhone : 65 6547 1878
Address : Blk 171 Kallang Way#05-05 Kolam Ayer Industrial EstateSingapore 349250
Sector : Gambling & Casinos
Established date: 1998
Linkedin: http://www.linkedin.com/company/weike-gaming-technology
WooWorld Pte Ltd
Web : http://www.wooworld.netPhone : (65) 6222-0610
Address : WOOWORLD PTE LTD48 Lorong 21 Geylang,#06-02, Greatland BuildingSingapore 388464
Sector : Marketing, distribution for mobile games
Established date: 2003
Linkedin: http://www.linkedin.com/company/wooworld-pte-ltd
XYZ Wave Pte Ltd
Web : http://www.xyz.com.sg/Phone : 65 6408 2736
Address : 1 Kim Seng Promenade, #15-12Great World City West TowerSingapore 237 994
Sector : Gesture tech
Established date: 2009
Linkedin: http://www.linkedin.com/company/xyz-wave-ptd-ltd
Zealot Digital Pte. Ltd.
Web : http://www.zealotdigital.comPhone : 65 6836 1868
Address : 107B/C & 108B/C, Amoy Street, Singapore 069927
Sector : MMORPG
Established date: 2007
Linkedin: http://www.linkedin.com/company/zealot-digital-private-limited
ZelRealm Interactive
Web : http://www.zelrealm.com/Address : 2 Engineering Drive 3, Singapore 117581
Sector : Localising social games
Established date: 2008
Linkedin: http://www.linkedin.com/company/zelrealm-interactive
Zingmobile Pte Ltd
Web : http://www.zingmobile.comPhone : (+65) 6438 9741
Address : 229 Mountbatten Road, Mountbatten Square#02-03Singapore, Singapore 398007SINGAPORE
Sector : Mobile games
Established date: 2002
Linkedin: http://www.linkedin.com/company/zingmobile-pte-ltd