Group
- Geneseo Area Gaming Group1
- Goodman Games8
- Green Ronin Publishing6
- Halsbren Publishing2
- Halsbren Publishing LLC5
- Hammerdog Games9
- Happy Gnome Publishing6
- Herd of Nerds2
- IDIG23
- In Portuguese1
- Infinite Imaginations, Inc.12
- Interaction Point Games (IPG)34
- Interaction Point Games, LLC8
- Into The Nexus2
- Into the Nexus5
- Iron DM All-Stars2
- Iron Dungeon Master All-Stars1
- Iron GM, LLC1
- IronDM All-Stars4
- Knights of the Arcade5