Commercial Companies and Units
- Archaeological Consultancy Services Limited
- Archaeological Consultancy Limited
- AEGIS Archaeology Ltd.
- Archaeology Company
- Archaeological Development Services
- CRDS - Cultural Resorce Development Services Ltd.
- Discovery Programme
- Eachtra Archaeological Projects
- Headland Archaeology Ltd.
- Irish Archaeological Consultancy Ltd
- Judith Carroll & Co. Ltd.
- Lithics Ireland Consultancy
- Margaret Gowen & Company
- National Archaeological Services Ltd.
- O'Flanagan Consultants
- TARGET Archaeological Geophysics
Scotland
- AOC
- ADU - The diving unit ceased operations in 2002
- CFA
- Headland Archaeology Ltd.
- GUARD - Archaeological Services and Research
- Rathmell Archaeology Ltd.
Wales
England
- Air Photo Services
- Albion Archaeology
- ASC
- Archaeology South East
- ArchaeoPhysica Ltd
- ArchWeb
- ARCUS
- Azuli
- Birmingham
- Brigantia
- Cantebury Archaeological Trust
- Colchester Archaeological
- Context One Archaeological Services
- Cotswold Archaeological Trust
- Durham University Archaeological Unit
- Foundations Archaeology
- GSB Prospection
- Landward
- Lancaster University Archaeological Unit
- Leicester University Archaeological Services
- MAP Archaeological Consultancy
- MOLAS
- Norfolk Archaeological Unit
- Orkney Archaeological Trust
- Oxford Archaeology
- Oxford Archaeotechnics
- Past Forward
- Quaternary TL Surveys
- Stewartry Archaeological Trust
- Stratascan Ltd
- Trent & Peak
- Wessex
- West Yorkshire Archaeology Service
- York
