
Alderac Entertainment Group, or AEG, is a publisher of role-playing game, board game, and collectible card game products. AEG was formed by Jolly Blackburn in 1993 and is based in the city of Ontario, California. Prior to getting into their current markets, AEG was involved in hobby gaming magazines, with their first product the magazine Shadis.

Catalyst Game Labs (CGL) was created in May 2007 by InMediaRes Productions, LLC for the purpose of publishing print Shadowrun and Classic BattleTech sourcebooks. In June 2007, WizKids transferred the licenses for both Shadowrun and Classic BattleTech from FanPro's United States subsidiary, FanPro LLC, to Catalyst, and in June 2008, Catalyst announced new novels for Shadowrun and Classic BattleTech, as well as the MechWarrior series.

Chaosium Inc. is a publisher of tabletop role-playing games established by Greg Stafford in 1975. Chaosium's major titles include Call of Cthulhu based on the horror fiction stories of H. P. Lovecraft, RuneQuest Glorantha, Pendragon, based on Thomas Mallory's Le Morte d'Arthur, and 7th Sea, "swashbuckling and sorcery" set in a fantasy 17th century Europe.

Critical Role Productions, LLC is a multimedia production company incorporated in 2015 by the members of the creator-owned streaming show Critical Role. The first two shows from the company, Critical Role and Talks Machina, originally premiered on Geek & Sundry. The company moved to their own studio space in 2018, and began putting out new shows on their own Twitch and YouTube channels. A split from Legendary Digital Networks was completed in early 2019, at which point Critical Role Productions took over production responsibility for the Critical Role and Talks Machina shows.

Cubicle 7 Entertainment Ltd is an Irish games company that creates and publishes tabletop games. Best known for its Doctor Who and Lord of the Rings games, Cubicle 7 offers titles covering a range of licensed and self-developed properties.

Enterbrain (エンターブレイン), formerly Enterbrain, Inc. , is a Japanese publisher and division of Kadokawa Future Publishing founded on 30 January 1987 as ASCII Film Co., Ltd. . Magazines published by Enterbrain are generally focused on video games and computer entertainment as well as video game and strategy guides. In addition, the company publishes a small selection of anime artbooks. Enterbrain is based in Tokyo, Japan, with a paid-in capital of 410 million yen. Enterbrain's current president is Hirokazu Hamamura.

Eos Press is an American game publisher named for the ancient Greek goddess of the dawn. It was established in 2001 in Seattle, Washington, as "Hawthornn Hobgoblynn Press". Eos has operations in Suzhou (China), Taiwan and Singapore.

Fantasy Flight Games (FFG) is a game company based in Roseville, Minnesota, United States, that creates and publishes role-playing, board, and card games. As of 2014, it is a subsidiary of Asmodée Éditions.

Fantasy Games Unlimited (FGU) is a publishing house for tabletop and role-playing games. The company has no in-house design teams and relies on submitted material from outside talent.

Fantasy Productions Medienvertriebsgesellschaft GmbH is a German publishing company based in Erkrath.

FASA Corporation was an American publisher of role-playing games, wargames and board games between 1980 and 2001, after which they closed publishing operations for several years, becoming an IP holding company under the name FASA Inc. In 2012, a wholly owned subsidiary called FASA Games Inc. went into operation, using the name and logo under license from the parent company. FASA Games Inc. works alongside Ral Partha Europe, also a subsidiary of FASA Corporation, to bring out new editions of existing properties such as Earthdawn and Demonworld, and to develop new properties within the FASA cosmology.

Flying Buffalo Inc. (FBI) is a Scottsdale, Arizona game company that publishes role playing games, card games, gaming materials, and runs play-by-mail games.

Fujimi Shobo (富士見書房), formerly Fujimi Shobo Co., Ltd. , was a Japanese publisher that specialized in light novels, manga, role-playing games and collectible card games. Founded in 1972 and reorganized three times, it was at times an independent company and at times an imprint of Kadokawa Future Publishing. It ceased to be an independent company in 2013 and the brand was retired in 2015.

Game Designers' Workshop (GDW) was a wargame and role-playing game publisher from 1973 to 1996. Many of their games are now carried by other publishers.

Games Workshop Group is a British manufacturer of miniature wargames, based in Nottingham, England. Its best-known products are Warhammer Age of Sigmar and Warhammer 40,000. It is listed on the London Stock Exchange and is a constituent of the FTSE 250 Index.

Goodman Games is an American game publisher, best known for the Dungeon Crawl Classics series of adventure modules, the Dragonmech and the award-winning Etherscope role-playing games. The company produced licensed adventures Wicked Fantasy Factory, Judges Guild, Xcrawl, Iron Heroes, Castles and Crusades, and Death Dealer.

Green Ronin Publishing is an American company based in Seattle, Washington. Founded in 2000 by Chris Pramas, they have published several role-playing game–related products. They won several awards for their games including multiple Origins, ENnie, Pen & Paper, and Inquest Fan Awards.

Grey Ghost Press was founded in 1994 by Ann Dupuis after spending time working on the Fudge RPG system by Steffan O'Sullivan. She initially created the company as Wild Mule Games in 1994, incorporated her company the following year as Ghostdancer Press, and then changed the name to Grey Ghost Press.

Guardians of Order was a Canadian company founded in 1996 by Mark C. MacKinnon in Guelph, Ontario. The company's business output consisted of role-playing games (RPGs). Their first game is the anime inspired Big Eyes, Small Mouth. In 2006 Guardians of Order ceased operations due to overwhelming debt.

Indie Press Revolution is a sales network that acts as a fulfillment house for publishers of indie role-playing games. It was founded in 2004 by Ed Cha of Open World Press and Brennan Taylor of Galileo Games. IPR represents over 100 author/publishers involved in role-playing games. It offers games directly to the public and to game retailers.

InMediaRes Productions, LLC is an American game company that produces role-playing games and game supplements.

Iron Crown Enterprises (ICE) is a publishing company that has produced role playing, board, miniature, and collectible card games since 1980. Many of ICE's better-known products were related to J. R. R. Tolkien's world of Middle-earth, but the Rolemaster rules system, and its science-fiction equivalent, Spacemaster, have been the foundation of ICE's business.

Steve Jackson Games (SJGames) is a game company, founded in 1980 by Steve Jackson, that creates and publishes role-playing, board, and card games, and the gaming magazine Pyramid.

Judges Guild is a game publisher that has been active since 1976. The company created and sold many role-playing game supplements, periodicals and related materials, but became best known during the late 1970s and early 1980s as one of the leading publishers of Dungeons & Dragons related materials. Its flagship product, City State of the Invincible Overlord, was the first published RPG supplement to feature a fully developed city environment. The supplement was followed closely by numerous ancillary cities, maps, and other materials published by Judges Guild.

Necromancer Games was an American publisher of role-playing games. With offices in Seattle, Washington and Coeur d'Alene, Idaho, the company specialized in material for the d20 System. Most of its products were released under the Open Game License of Wizards of the Coast.

Nightfall Games is a United Kingdom based role-playing game publishing company notable for publishing SLA Industries.

Onyx Path Publishing is a publisher of tabletop role-playing games that produces licensed products as well as company-owned and creator-owned games.

Pacesetter Ltd was a game company based in Delavan, Wisconsin, founded in 1984. Company founders included CEO John Rickets, and Mark Acres, Andria Hayday, Gaye Goldsberry O'Keefe, Gali Sanchez, Garry Spiegle, Carl Smith, Stephen D. Sullivan and Michael Williams. Pacesetter produced both tabletop role-playing games and board games.

Palladium Books is a publisher of role-playing games (RPGs) perhaps best known for its popular, expansive Rifts series (1990–present). Palladium was founded April 1981 in Detroit, Michigan by current president and lead game designer Kevin Siembieda, and is now based in Westland, Michigan. The company enjoys the support of a small but dedicated fanbase who praise its various game series for their innovative settings and ease of adaptability to various personal preferences, play styles, and power levels.

Pelgrane Press Ltd is a British role-playing game publishing company based in London and founded in 1999. It is co-owned by Simon J Rogers and Cat Tobin. It currently produces GUMSHOE System RPGs, 13th Age, the Diana Jones award-winning Hillfolk RPG, the Dying Earth Roleplaying Game, and other related products. It publishes fiction under the Stone Skin Press imprint.

Precis Intermedia publishes downloadable PDF-based and traditional printed role-playing games. They also publish downloadable paper gaming miniatures called Disposable Heroes, and other various miniatures and tabletop games. Precis Intermedia merged with Spectre Press, one of the first RPG publishers to offer PDF-based products on the internet.

Privateer Press is a role-playing game, miniature wargame, acrylic paint, board game and card game production and publishing studio. Privateer Press is based in Bellevue, Washington, United States, where they have their headquarters and American factory/distribution center. They have also licensed a factory in the United Kingdom to increase production capacity for worldwide markets.

Target Games was a Swedish publisher of role-playing games active from 1980 until the year 1999 when they went into bankruptcy proceedings. Until the mid-1990s they published their Swedish roleplaying games under the brand name Äventyrsspel.

Troll Lord Games is an American publisher of role-playing games, The Crusader magazine and other board/dice/card games.

TSR, Inc. was an American game publishing company and the publisher of Dungeons & Dragons (D&D).

Wizards of the Coast LLC is an American publisher of games, primarily based on fantasy and science fiction themes, and formerly an operator of retail stores for games. Originally a role-playing game publisher, the company originated and popularized the collectible card game genre with Magic: The Gathering in the mid-1990s. It also acquired the popular Dungeons & Dragons role-playing game by buying TSR and increased its success by publishing the licensed Pokémon Trading Card Game. The company's corporate headquarters are located in Renton, Washington, part of the Seattle metropolitan area.

Z-Man Games is an American board game company, incorporated in 1999. It was named after its founder, Zev Shlasinger. The company is largely known for their Pandemic series of board games, as well as being the sole publisher for the English editions of popular Eurogames, such as Carcassonne and Terra Mystica.