Sinclair Research
| Company type | Limited company | 
|---|---|
| Industry | Computing Electronics | 
| Founded | Cambridge, England, UK (1973) | 
| Founder | Clive Sinclair | 
| Headquarters | , UK | 
| Key people | Nigel Searle, Director (1979 to 1986) Jim Westwood Rick Dickinson, Designer | 
| Products | Sinclair ZX Spectrum Sinclair QL | 
| Revenue | £102 million GBP (1985) | 
| Number of employees | 140 (1980s) 3 (1990) 1 (1997) | 
Sinclair Research Ltd is a British consumer electronics company founded by Clive Sinclair in Cambridge in the 1970s. In 1980, the company entered the home computer market with the ZX80 at £99.95, at that time the cheapest personal computer for sale in the United Kingdom. A year later, the ZX81 became available through retailers, introducing home computing to a generation, with more that 1.5 million sold. In 1982 the ZX Spectrum was released, becoming the UK's best selling computer, and competing aggressively against Commodore and Amstrad.
A combination of the failures of the Sinclair QL computer and the TV80 pocket television led to financial difficulties in 1985, and a year later Sinclair sold the rights to its computer products and brand name to Amstrad. Sinclair Research Ltd continued to exist as a one-man company, marketing Clive Sinclair's inventions.