It's a long list but I think you can void quite a few of those.
First Party
343 Industries - Halo IP
Turn 10 - Forza IP
Rare - Sea of Theaves, Rare IP
Mojang - Minecraft IP
The Coalition - Gears of War IP
BigPark Joy Ride series, Kinect Sports: Season Two 'Nothing since 2012'
Microsoft Casual Games Team Solitaire, Mahjong, Minesweeper, Bingo, Jigsaw
Launchworks - South Park Scott Tenorman's Revenge , South Park Let's Go Tower Defense Play. 'Nothing since 2012'
New, Unknown IP
Decisive Games - Beloved Strategy IP 'Age of Empires' ?
Life London - F2P Tablet, Mobile Games, Indie games incubator.
Leap Experience Pioneers
Kinect/Hololens/New experiences
FIT Holobuilder
(FUN)ction Studios Microsoft HoloLens and Xbox One
Kids and Lifestyle Entertainment Xbox Fitness
Good Science Studio Kinect Adventures, Kinect Fun Labs, Microsoft HoloLens and Xbox One
SOTA - State of The Art Studios MARS on Microsoft HoloLens
Platform Next Studios Microsoft HoloLens and Xbox One
Second Party
Remedy - Quantum Break, Alan Wake
Undead Labs - State of Decay
Creative Assembly - Halo Wars 2
Armature Studio ReCore
Iron Galaxy Studios Wreckateer, Ms. Splosion Man (iOS, Windows Phone 7 ports), Killer Instinct IP
Vanguard Games Halo: Spartan Assault
ReAgent Games Crackdown 3
Playground Games Forza Horizon IP
Platinum Games Scalebound
Grounding Inc Crimson Dragon
Frontier Developments Kinectimals, Kinect Disneyland Adventures, Zoo Tycoon, ScreamRide
Skybox Labs Age of Mythology HD Extension, Age of Empires 2 HD , Rise of Nations HD
Ruffian Games Crackdown 2
Signal Studios Toy Soldiers, Ascend: Hand of Kul
The Behemoth - Game 4
Saber Interactive Halo: Combat Evolved Anniversary
Harmonix Dance Central series
Certain Affinity Crimson Alliance, Halo 2 (Map Packs), Halo: Reach (Map Packs), Halo: Combat Evolved Anniversary (Map Packs), Halo Waypoint
Former and Defunct
Former First Party
Bungie - Halo IP
Twisted Pixel - The Gunstringer, LocoCycle, The Maw, The Adventures of Captain Smiley, 'Splosion Man series
Defunct First Party
Aces Studio Microsoft Flight Simulator series
Digital Anvil Brute Force, Freelancer
Ensemble Studios Age of Empires series, Halo Wars
FASA Studio MechWarrior series Shadowrun, Crimson Skies
Hired Gun Halo 2 for Windows Vista
Lionhead Studios Fable series
Press Play Max: The Curse of Brotherhood, Tentacles, Knoxville, Kalimba
Microsoft Game Studios Japan Magatama, Phantom Dust
Microsoft Studios Victoria Untitled Core Project
Day 1 Studios - Mech Assault 1&2
Former Second Party
Digital Illusions 'DICE' - Rallisport Challenge, Midtown Madness 3
Beep Industries Voodoo Vince
BioWare Mass Effect, Jade Empire
Fuel Industries Tinker
Defunct Second Party
Artoon Blinx series, Blue Dragon
Bizarre Creations Project Gotham Racing series
Carbonated Games Hexic series
feelplus Lost Odyssey
Game Republic Every Party
Hudson Soft Fuzion Frenzy 2
Realtime Worlds Crackdown
Southend Interactive Lode Runner 2009, ilomilo