- 3i Commercial Property Ltd
- Abchurch Properties
- Aboitiz Land Inc
- Airports UK Ltd
- Allied Developments Ltd
- Arcadian plc
- Archus
- Arora International
- Arrowcroft Plc
- Artigiano Ltd
- Associated British Ports
- Atlantic Hotel, Jersey
- BAA Lynton Plc
- Ballie Ballerson
- Barnsley Hospital NHS Foundation Trust
- Barratt Homes
- Barratt London
- Bentley Group of Companies
- Berkeley Homes (Capital) Plc
- Birmingham Community Healthcare NHS Foundation Trust
- Bradford Teaching Hospitals NHS Foundation Trust
- British Council
- British Mediterranean Airways
- Building Centre
- Calbyn Trust
- Camberwell Health Authority
- Cambridge Gate Properties
- Cambridge University Boat Club
- Canary Wharf Group
- Cardiff Bay Co.
- Cardinal Authentic Models
- Carroll Group (Mark Carroll)
- Cathedral Group
- Champneys Group Limited
- Chesterfield Royal Hospital NHS Foundation Trust
- Chestertons
- China Vanke Co Ltd
- Co-Partnership Property Developments Ltd
- Commercial and Estates Management Limited
- D&D London
- Department for International Development
- Derbyshire Support & Facilities Services Limited (DSFS)
- Derwent London
- Development Securities Ltd
- Doncaster and Bassetlaw Teaching Hospitals
- Fairhaven Shipping Co.
- Family Mosaic
- Foreign and Commonwealth Office (Overseas Estates Department)
- Godolphin & Latymer School
- Gold Property Development Ltd
- Great Eastern Hotel Co
- Hawke Property Development
- Hilton International
- Hilton UK
- Hull City Council
- Inland Revenue Staff Federation
- Inner City Enterprises
- Isle of Man Government
- Jersey Electricity Co.
- Knight Dragon
- Lend Lease Europe Limited
- Lewisham and Greenwich NHS Trust
- LG Mouchel & Partners Ltd
- Lighthaven Properties Ltd
- Lister Developments Ltd
- London Regional Transport
- London River Services
- London Transport Executive
- London Underground Limited
- Lutyens Properties Ltd
- Macmillan Cancer Support
- Manx National Heritage
- Merlin Entertainments Group Ltd
- Mott MacDonald Ltd
- Museum of London
- National Art Collections Fund
- NEAT Developments
- Noble House Group
- Norwich Airport Ltd.
- Omniport Holdings Ltd.
- Oxford University Hospitals NHS Foundation Trust
- Pace Investments / Education
- Peabody Housing Association
- Pidemco Land / Canary Riverside Management
- PIRA
- Planet Hollywood International
- Port of London Authority / London River Services
- Portland Group
- Precis Holdings Ltd
- Priory Bay Hotel
- PSA
- Queensway Group
- Quintain Estates & Development
- Railtrack / Kier Construction
- Rialto Homes
- Royal Haskoning DHV Ltd
- S.P. Systems Ltd
- Sacred River Limited
- SB2 Property Ventures Ltd
- Sheraton Park Tower
- Shrewsbury School
- Sir Richard Sutton’s Estates
- Slough Estates
- Smiths of Smithsfield
- Sotheby’s
- Southampton International Airport Limited
- SP Systems
- Squarestone
- St James’s Properties
- St Johns Trust (F R Koch)
- Standard Life Assurance Co
- Stanhope Securities
- Stansted Park Foundation
- Starwood Hotels & Resort
- States of Guernsey
- Stena Sealink
- Stow Securities Plc
- Sunny Tours Ltd
- Swanrise
- Tactical Properties
- Tangram Leisure Ltd
- Tebb Properties Ltd
- The Continuity Company
- The Goldie Boathouse
- The Goodwood Estate
- The Hambleden Estate
- The Maudsley Hospital
- The Rocco Forte Collection
- The Sloane Club
- The Standard Life Assurance Co
- The Victoria Public House
- Threadneedle Investments
- Transport for London
- Travel Yields
- Tropicacre
- U + I Plc
- UEA
- UK Land
- University of East Anglia
- Ushers
- Ushers of Shrewsbury
- V A Properties
- Vanke Development Corp
- Vastint
- Villacrest Ltd
- Vokes Ltd & Buckingham Property Investment Ltd
- Warner & Sons Ltd
- Wates Developments Ltd
- West London Property Co
- Westbrook Prop Co Ltd
- Westcourt Real Estate (Europe) Ltd
- Westfield
- William Grant & Sons
- WSF Group