Gremlin Industries was an American arcade game manufacturer active from 1970 to 1983, based in San Diego, California. It was acquired by Sega in 1978, and afterwards was known as Gremlin/Sega or Sega/Gremlin. Among Sega/Gremlin's most notable games are Blockade and Head On, as well as being the North American distributors for Frogger and Zaxxon. The company's name was subsequently changed to Sega Electronics in 1982, before its operations were closed in 1983.

Sega Corporation is a Japanese multinational video game company headquartered in Shinagawa, Tokyo. Its international branches, Sega of America and Sega Europe, are headquartered in Irvine, California, and London. Its division for the development of arcade games and home video games, Sega Games, has existed in its current state since 2020; from 2015 to that point, the two had made up separate entities known as Sega Games and Sega Interactive Co., Ltd. Sega is a subsidiary of Sega Sammy Holdings. From 1983 until 2001, Sega also developed video game consoles.