Group
- Iron Crown Enterprises6
- Iron GM, LLC2
- JMR Gaming Group1
- JP Webb3
- Japanime Games17
- Jasco Games45
- Joe Magic Games9
- John Wrot!2
- Jolli Projects2
- Jubilee Games1
- Just Game L.L.C.39
- JustSaiyan.com5
- KFG3
- KFI1
- Kathleen Mercury1
- Keep Talking Game29
- Kell's Krusaders2
- Kentucky Fried Gamers1
- Kettle of Fish Productions12
- Kickstarter2