Group
- NASCRAG7
- NERO Chicago3
- NSDM, Inc.13
- Natalie Butler16
- Nathaniel Ragatz2
- North Star Games2
- Northern Virginia Gamers (NOVAG)13
- Northern Virginina Gamers2
- ORC11
- On The Lamb Games21
- Open Design/Kobold Quarterly1
- Orc Stomp2
- Ottawa Red Shirt1
- Ottawa Red Shirts90
- Out of the Box1
- Out of the Box Publishing26
- PHOENIX Interactive GmbH5
- PST Productions33
- Paizo Publishing, LLC87
- Pantheon Press, LLC4