London Universities Purchasing Consortium (LUPC)
- Agriculture and Horticulture Development Board - AHDB (DEFRA Group)
- APHA (DEFRA Group)
- British Council
- Camberwell College of Arts (UAL)
- Central Saint Martins College of Arts & Design (UAL)
- Chelsea College of Art & Design (UAL)
- CITB - Construction Industry Training Board
- Defence Science and Technology Laboratory (DSTL)
- DEFRA Group Commercial
- Forestry Commission/Forestry England (DEFRA Group)
- Joint Nature Conservation Committee - JNCC (DEFRA Group)
- King's College London
- Kingston University
- London College of Communication (UAL)
- London College of Fashion (UAL)
- London School of Economics & Political Science
- LUPC
- Medical Research Council (UK SBS)
- NHS Blood & Transplant (NHSBT)
- Queen Mary University of London
- UK Health Security Agency (UKHSA)
- UK Research and Innovation (UKRI/UK SBS)
- UK Shared Business Services Ltd (UK SBS)
- University of East London
- University of Greenwich
- University of London
- University of the Arts London (UAL)
- University of Westminster
- Wimbledon College of Art (UAL)
- Birkbeck, University of London
- Clinical Practice Research Datalink (NIBSC)
- Diamond Light Source
- Ensemble Purchasing (Trinity Laban & University of Roehampton)
- Goldsmiths, University of London
- Imperial War Museum
- Institute of Cancer Research
- Jisc
- London Ambulance Service NHS Trust
- London Business School
- London Metropolitan University
- London Museum
- London School of Hygiene & Tropical Medicine (LSHTM)
- London South Bank University
- Medicines & Healthcare products Regulatory Agency (MHRA)
- Met Office
- National Institute for Biological Standards & Control (NIBSC)
- National Museum of Science & Industry (SMG)
- National Nuclear Laboratory
- National Physical Laboratory
- National Railway Museum (SMG)
- National Science and Media Museum (SMG)
- Natural History Museum
- Nominet UK
- Porton Biopharma
- Royal Botanic Gardens, Kew
- Royal College of Surgeons of England
- Royal Holloway, University of London
- Royal Veterinary College
- Science Museum London (SMG)
- Science Museum Swindon (SMG)
- SOAS University of London
- Tate incl Modern, Britain, Liverpool and St Ives
- The British Library
- UK Atomic Energy Authority
- UK Industrial Fusion Solutions LTD (UKIFS/UKAEA)
- University of Roehampton
- Victoria & Albert Museum
- Architectural Association School of Architecture
- Bank of England
- CEFAS (Centre for Environment, Fisheries and Aquaculture Science)
- Cell and Gene Therapy Catapult
- Competition and Markets Authority (CMA)
- Courtauld Institute of Art
- Department for Work and Pensions (DWP)
- Earlham Institute (NBI)
- Ensemble Purchasing (LAMDA & Royal Academy of Music)
- Ensemble Purchasing (Ravensbourne & Royal College of Anaesthetists)
- Ensemble Purchasing (Regents University & Royal College of Music)
- Harris Federation
- Historic Royal Palaces
- Horniman Museum and Gardens
- Institution of Civil Engineers
- International Students House
- John Innes Centre (NBI)
- London Academy of Music and Dramatic Art (LAMDA)
- National Oceanography Centre
- National Portrait Gallery
- NBI Partnership
- Quadrum Institute Bioscience (NBI)
- Ravensbourne University London
- Regent's University London
- Richmond American International University London
- Royal Academy of Dramatic Art
- Royal Academy of Music
- Royal Albert Hall
- Royal Central School of Speech & Drama
- Royal College of Radiologists
- Royal College of Anaesthetists
- Royal College of Art
- Royal College of General Practitioners
- Royal College of Music
- Royal College of Paediatrics and Child Health
- Royal College of Physicians
- Royal Museums Greenwich
- South West London & St George's Mental Health NHS Trust
- Students' Union UCL
- The Alan Turing Institute
- The British Museum
- The Francis Crick Institute
- The National Archives
- The National Gallery
- The Sainsbury Laboratory (NBI)
- The University of Buckingham
- Trinity College, London
- Trinity Laban Conservatoire of Music & Dance
- Universities UK
- Zoological Society of London (incorp Institute of Zoology)