Psi-5 Trading Company (also rendered as Psi 5 Trading Company, PsiΨ5 Trading Company, Psi5 Trading Company and PSI-5 Trading Company) is a 1985 space trading game, one of the first games published by fledgling video game developer and publisher Accolade. The game was released the Amstrad CPC, Apple II, Commodore 64, IBM PC, and ZX Spectrum.