Reference Software International

Reference Software International
Company typePrivate
Founded1985 (1985) in Walnut Creek, California, United States
Founders
  • Donald Emery
  • Bruce Wampler
Defunct1993 (1993)
FateAcquired by WordPerfect Corporation
HeadquartersAlbuquerque, New Mexico (research and development)
ProductsGrammatik
Number of employees
140 (1992, peak)

Reference Software International, Inc. (RSI), was an American software developer active from 1985 to 1993 and based in Albuquerque, New Mexico, and San Francisco, California. The company released several productivity and reference software packages, including the Grammatik grammar checker, for MS-DOS. The company was acquired by WordPerfect Corporation in 1993.