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Broderbund Software, Inc. is an old American maker of video games, educational software, and productivity tools. Broderbund is best known for the 8-bit video game hits Choplifter, Lode Runner, Karateka, and Prince of Persia, as well as The Print Shop—originally for printing signs and banners on dot matrix printers—and the Myst and Carmen Sandiego games. The company was founded in Eugene, Oregon, and moved to San Rafael, California, then later to Novato, California. Broderbund was purchased by The Learning Company in 1998.

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Crack dot Com was a computer game development company co-founded by ex-id Software programmer Dave Taylor, and Jonathan Clark.

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Electro Brain was a North American video game publisher based in Salt Lake City, Utah that was active from 1990 to 1998.

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GameTek was an American video game publisher based in North Miami Beach, Florida known for publishing video game adaptations of game shows in the late 1980s and early 1990s. GameTek was a trade name for IJE, the owner of electronic publishing rights to Jeopardy! and Wheel of Fortune. Originally IJE licensed these titles to ShareData of Chandler, Arizona; however, when IJE saw ShareData's success with the titles, IJE decided to publish the titles themselves, resulting in the founding of GameTek.

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Graftgold was an independent computer game developer that came to prominence in the 1980s, producing numerous computer games on a variety of 8-bit, 16-bit and 32-bit platforms.

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Lemon was a video game developer founded in 1994 by Søren Hannibal and Jacob Andersen, who had previously been members of a demoscene group of the same name.

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Lobotomy Software, Inc. was an American video game developer which ported Quake and Duke Nukem 3D to the Sega Saturn and developed PowerSlave.

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Ultrasoft was a computer game developer and computer game publisher located in Bratislava, Slovakia. The company specialised in the development and publishing of games for the ZX Spectrum home computer. With over 40 titles published, its most successful including the platform game Towdie and puzzle games Atomix and Hexagonia – Atomix 2. Ultrasoft also acted as an exclusive distributor within the territory of Czechoslovakia for Ocean Software game software house based in the UK. Apart from computer games, the company also published a dozen or so non-game titles, mostly for learning foreign languages, as well as text, image, sound and music editors.