Aviation

• BAA
• TBI
• Belfast International Airport
• London Luton Airport
• London Gatwick Airport
• London Heathrow Airport
• Cardiff International Airport
• British Airways Maintenance - Glasgow and Cardiff
• Virgin Atlantic

Commercial

• GlaxoSmithKline
• HSBC
• Camelot
• Bank of New York Mellon Corporation
• National Trust
• Chelsea Harbour
• Turner Broadcasting
• ABN AMRO
• Nickelodeon
• Broadgate Estates
• OXO Tower
• Mercedes Benz World
• Knight Frank

Defence

• Defence Estates
• Defence Equipment & Support
• Defence Training Estate
• Defence Sixth Form College
• Armada
• South East Regional Prime
• Flagship Training
• South Atlantic ISP
• Cyprus ISP
• BAE Systems
• AWE
• Marshalls Aerospace

Health

• University College London Hospital
• Dudley Group of Hospitals
• Cumberland Infirmary, Carlisle 
• Hampshire NHS Primary Care Trust
• Department of Health
• Newcastle Upon Tyne NHS Trust
• Leeds Primary Care Trust

Home Affairs

• Home Office
• Foreign and Commonwealth Office
• Metropolitan Police
• HM Revenue and Customs/Department for Work and Pensions
• Welsh Assembly
• National Audit Office
• Ministry of Justice
• Her Majesty's Court Service

Industrial

• BP Hull
• Outokumpu Stainless
• Areva T&D
• British Energy
• Corus
• AstraZeneca
• British Nuclear Group
• Urenco
• Toyota
• Scottish Power

Local Government

• London Borough of Croydon
• Slough Borough Council
• London Borough of Havering
• Westminster City Council
• Southwark Council

Retail

• PRUPIM
• CB Richard Ellis 
• Jones Lang LaSalle
• Sainsbury's
• Niketown
• Tesco Ireland
• Homebase
• Abbey
• Boots Group Plc
• New Covent Garden Market...