ARCHAS Ltd have an extensive range of clients and principal amongst these have been:
Forth Crossing Bridge Constructors (FCBC)
Scottish Water Solutions
Scottish Water
Scottish Natural Heritage
ATMOS Consulting
Tillicoultry Quarries Ltd
Western Isles Council
The Woodland Trust
Caledonian Water Alliance
Morrison Construction
Wessex Archaeology Ltd
CASA Planning
Byzantin Developments
Green Power Consultants
Eisnis Power
Bheinn Mhor Power
Crionaig Power
Mabbett Associates
Scottish Power
SSE
Tilhill Forestry
200SVS
Fife Council
Dalgleish Associates
John Handley Associates
GSS Plant
Robert Simpson and Son
Yeoman Macallister
Montgomery Forgan Associates
Robertson Construction
Ogilvie Homes
Fife Architects
Eastacre LLP