MetaComCo (MCC) was a computer systems software company started in 1981 and based in Bristol, England by Peter Mackeonis and Derek Budge.

Other computer languages followed, also licensed by Digital Research and MetaComCo established an office in Pacific Grove, California, to service their United States customers.

In 1984 Dr. Tim King joined the company, bringing with him a version of the operating system TRIPOS for the Motorola 68000 processor which he had previously worked on whilst a researcher at the University of Cambridge.

The company also sold the Lattice C compiler for the Sinclair QL and the Atari ST and range of other languages (e.g. Pascal, BCPL) for m68k-based computers.

Mackeonis founded Triangle Publishing, the software publishing company responsible for creating the ST Organizer for the Atari ST and PC Organizer and Counterpoint (a GUI system) for Amstrad Computers and GoldStar computers.