Contents:
- IIT Research Institute
- Image Analysing Computers Ltd
- Imlac Corporation
- Impectron Ltd
- Impex Electrical
- Incoterm CorporationLancashire County Council
- Inforex
- Information Computer Systems
- Information International
- Informer Inc.
- Infotron Systems
- Instem Ltd
- Insurance Technical Bureau
- Intel Corporation (UK) Ltd
- LFE Computer Products Division
- Intercontinental Systems Inc
- International Instruments Ltd
- Intertechnique
- Intertrade Scientific
- Inverdata Burotechnik
- Iomec Inc
- ITC Systems Ltd
- Intel International
- ITT Business Systems Harry Lockhart