I think there are some inaccuracies here. Like Machinegames smaller than Roundhouse, Rare bigger than Playground, etc.
In terms of Linkedin numbers strictly we have this (but it's not really reliable because some are likely inflated like Blizzard, King.. some should be bigger like The Coalition, Tango Gameworks, etc. It may give a very rough idea though).
- - Blizzard: 5382
- - King: 2760
- - Mojang: 839
- - Infinity Ward: 564
- - Treyarch: 563
- - 343 Industries: 541
- - Sledgehammer Games: 500
- - ZeniMax Online: 494
- - Beenox: 458
- - Bethesda Game Studios: 418
- - Raven Software: 385
- - Playground Games: 347
- - id Software: 300
- - Obsidian Entertainment: 272
- - Rare: 263
- - Arkane Studios: 259
- - High Moon Studios: 236
- - Demonware: 226
- - Turn 10 Studios: 177
- - The Coalition: 174
- - MachineGames: 155
- - Ninja Theory: 134
- - Toys for Bob: 132
- - Undead Labs: 117
- - inXile Entertainment: 113
- - Xbox Game Studios Publishing: 99
- - Compulsion Games: 86
- - Digital Legends: 77
- - Double Fine Productions: 75
- - The Initiative: 48
- - Alpha Dog Games: 21
- - Tango Gameworks: 11
- - World's Edge: 8
- - Activision Shanghai Studio: page merged with Activision
- - Solid State Studios: page merged with Activision
- - Roundhouse Studios: no page
But from a report, Activision's proper numbers as of December 31, 2021 were:
- Activision : ~3528
- Blizzard : ~3920
- King : ~1666
- Other : 588