Rockit: Playful Solutions
Applied game studio

Esciri
Solo game developer

Game Tailors
Serious Game Development Studio

Double Ntertainment (Closed)
Game developer and consultant

TurtleBlaze
Game Development Studio

Grendel
Serious game development company

Excalisoft B.V. (Closed)
Game development studio

By Bleep
Augmented Reality & Serious game development

Paladin Studios (Closed)
Game development studio