Prosiectau
Rhester Cleient
Mae gennym nifer helaeth o gleientiaid sy'n cynnwys:
Asiantaethau a Byrddau Cyfarwyddwyr y Llywodraeth
Cadw, Asiantaeth Ymchwil Amddiffynnol, Adran Drafnidiaeth, Asiantaeth yr Amgylchedd yng Nghymru, Cyngor Cefn Gwlad Cymru, Awdurdod Afonydd Cenedlaethol, Comisiwn Brenhinol ar Henebion Hynafol a Hanesyddol yng Nghymru.
Awdurdodau Lleol
Ar hyd a lled de Cymru, Parc Cenedlaethol Bannau Brycheiniog, Cyngor Dinas Bryste, Cyngor Sir Powys, Cyngor Sir Gwlad yr Haf, Cyngor Dosbarth De Penfro.
Gwasanaethau
Nwy Prydain, British Telecommunications, Dwr Cymru, Grid Cenedlaethol, SWALEC, Transco.
Asiantaethau ac Ymgynghorwyr
EC Harris, Grimley JR Eve, Hyder Consulting, Hyder Environmental, Halcrow, Jacobs Babtie, Kier Western, Landmark, Lewis Lewis, Ove Arup, Powell Dobson, Rendall Palmer & Tritton, RPS Burks Green, Scott Wilson, TACP, White Young Green, Wyn Thomas/Gordan Lewis, WS Atkins.
Busnesau Diwydiannol
BP, British Airports, British Ports Authority, Celtic Energy, Hanson Aggregates, Lafarge Redland Aggregates, Miller Argent (South Wales) Ltd, Minimix, ICI, Rhône-Poulenc Chemicals Ltd, Rio Tinto Zinc, Walters Mining Ltd, Renewable Energy Systems Ltd.
Datblygwyr a Phrif Gontractwyr
Alfred McAlpine, AMEC, Amey, Barratt Homes, Beaufort Homes, Bellway Homes, Boots Properties, Bovis Homes, BP Properties, Burford, Carillion, Celtic Inns, Costain, Crest Homes, WD Dixon, Dixons/Currys, Edwardware Homes, Galliard Homes, George Wimpey, io Group, Kwiksave, Laing O'Rourke, LG Group, Meadgate Homes, Mclean Homes, Morrison Developments, Mott Macdonald, Mowlems, Newlands Developments, OPCO, Persimmon Homes, Sanyo UK, Sony UK, The Taylor Group, Taylor Woodrow, Tesco, Thurleigh Estates, Trafalgar House, Waitrose, Cymdeithas Tai Cymru a'r Gorllewin , Westbury Homes, Wimpey Homes.