- Aberdeen Property Asset Managers
- AMV BBDO
- Arcadia
- Argent
- Aspria
- Axa
- Bavaria Objekt und Baubetreuung
- BBC
- BBH
- Belgo
- Blackfriars
- Bloomsbury Publishing
- Boleyn & Forest Housing Society / East Choice
- Bristol Development Corporation
- British Airports Authority
- British Airways
- British Music Centre
- Brown & Root
- Cable & Wireless Europe
- Canary Wharf
- Cannon Avent
- Carlton Communications
- Carvalho Hosken
- CCF
- Central & City Properties
- Chelsea FC
- Chelsfield
- Cilntec
- City of Brussels
- City of London
- City Offices Real Estate
- City Screen Limited
- Concord Rotaflex
- Consolidated Developments
- Cornerhouse
- Criterion Properties
- D J Freeman
- Derwent London
- Design Council
- Dewynters
- Digiplex
- Docklands Light Railway
- Doyle Dane Bernbach
- East Thames Group
- ECRC
- EMI Music
- English Partnerships
- Espree
- Euro Hypo
- European Commission
- Exodus Communications
- Film Network
- First Base
- Glebe
- Gouman
- Green Room
- Greycoat Estates
- Hanson
- Harbour Club
- Hard Rock Cafe International
- Hastings and Bexhill Task Force
- Hendriksen
- Hermes
- Hilton International
- Howard de Walden Estate
- iAxis
- IBM UK Laboratories
- Imperial College
- Imry Properties
- Interbrand
- IPD
- J Walter Thompson
- Johnson Controls
- JP Morgan
- Kesslers International
- Kiraku
- Komori Currency Technology
- Laing O'Rourke
- Land Securities
- Leagas Delaney
- Legal and General
- Lend Lease
- LentA
- Leo Burnett
- LETEC
- Lewin & Watson
- London & Continental Railways
- London & Edinburgh Trust
- London Borough of Greenwich
- London Stock Exchange
- Lowe Group
- Luton Borough Council
- Markley Stearns
- MCI
- Mentorn Films
- MEPC
- Mercury Asset Management
- MFI UK
- MGM
- Millennium Commission
- Minerva
- Mitsui
- MK International
- Montagu Evans
- Morley Fund Management
- Moving Picture Company
- Mubadala Development
- National Health Service
- National Museum of Film Photography & Television
- National Museum of Science & Industry
- National Youth Centre for Performing Arts
- Nationwide
- Network Rail
- Newcastle City Council
- Newcastle University
- Newell & Sorrell
- NEXCOMM
- Nomura
- Norman Trust
- Notting Hill Housing
- NOVA
- O'Connor Capital Partners
- Ofcom
- Omnicom
- ONE NorthEast
- Orion Land & Leisure
- Oxford Properties
- Park Avenue
- Paul Weiland Film Company
- Pluto Capital
- PowerGen
- Prime Health
- PRUPIM
- PWC
- Queensland Government
- Regal GB Holdings
- Renzo Piano Building Workshop
- Reuters
- Riga City Council
- Riverside
- RMS
- Rockpoint
- Rosehaugh Stanhope
- Royal London
- Royal Mail Group
- Schroeder
- Screen Cinemas
- Singer & Friedlander
- Slough Estates
- Sony Computer Entertainment Europe
- Sony Pictures Europe
- Sorrell Foundation
- South East England Development Agency
- Spicer Oppenheim
- St Anne's College, University of Oxford
- Standard Life
- Stanhope
- TBWA Paling Walters
- The Crown Estate
- Tindall Riley
- Tower Records
- Trommsdorff
- Tussauds Group
- Tyneside Cinema
- UBS Global Asset Management
- University of Newcastle
- UNUM
- Vignelli Associates
- Village Roadshow International
- Vodafone
- Wates Group
- WCRS
- Welbeck Land
- Westfield
- Whitbread
- Workplace Management
- Worshipful Company of Fishmongers