I. P. Sharp Associates
| Company type | Private | 
|---|---|
| Industry | Computer software, time-sharing, consulting, services | 
| Predecessor | Ferranti, Ferranti-Packard | 
| Founded | December 1964 in Toronto, Ontario, Canada | 
| Founders | Ian Sharp et al. | 
| Defunct | 2005 | 
| Fate | 
 | 
| Successor | Soliton Incorporated | 
| Headquarters | , | 
| Number of locations | 59 offices (1983) | 
| Area served | |
| Products | |
| Owner | Reuters Group | 
I. P. Sharp Associates (IPSA) was a major Canadian computer time-sharing, consulting and services firm of the 1970s and 1980s. IPSA is well known for its work on the programming language APL, an early packet switching computer network named IPSANET, and a powerful mainframe computer-based email system named 666 Box, stylized as 666 BOX. It was purchased in 1987 by Reuters Group, which used them until 2005 as a data warehousing center for business data.