| Kent County Council (ta/KCS) | Other | 1 | £63m | 45.1% | 2021-06-30 |
| Department for Education | Other | 10 | £21m | 15.2% | 2025-03-13 |
| Crown Commercial Service | Other | 1 | £7m | 5.2% | 2014-08-01 |
| University of Sunderland | Other | 2 | £6m | 4.4% | 2025-07-31 |
| University of Plymouth | Other | 2 | £5m | 3.9% | 2022-09-30 |
| Solent University | Other | 1 | £5m | 3.8% | 2021-03-26 |
| UNIVERSITY OF WOLVERHAMPTON ENTERPRISE LIMITED | Other | 3 | £5m | 3.7% | 2022-11-03 |
| UNIVERSITY OF SHEFFIELD | Other | 1 | £5m | 3.3% | 2017-01-03 |
| UNIVERSITY OF THE ARTS LONDON | Other | 1 | £2m | 1.5% | 2016-10-11 |
| Leeds City College | Other | 1 | £2m | 1.1% | 2022-10-07 |
| ASTON UNIVERSITYNew | Other | 1 | £1m | 0.9% | 2025-07-31 |
| BOURNEMOUTH UNIVERSITYNew | Other | 1 | £1m | 0.9% | 2025-10-17 |
| University of ChesterNew | Other | 1 | £1m | 0.7% | 2025-06-24 |
| Milton Keynes Council | Other | 3 | £910k | 0.7% | 2025-07-10 |
| Nottingham College | Other | 1 | £725k | 0.5% | 2022-09-01 |
| University Of The West Of England | Other | 10 | £678k | 0.5% | 2024-07-01 |
| THE UNIVERSITY OF CUMBRIANew | Other | 3 | £678k | 0.5% | 2024-07-31 |
| Hopwood Hall CollegeNew | Other | 2 | £622k | 0.4% | 2026-05-20 |
| Ministry of Defence | Other | 1 | £606k | 0.4% | 2023-07-31 |
| University of SuffolkNew | Other | 1 | £596k | 0.4% | 2025-07-09 |
| City of Wolverhampton College | Other | 1 | £569k | 0.4% | 2020-02-26 |
| UNIVERSITY OF KEELENew | Other | 1 | £545k | 0.4% | 2025-07-14 |
| Buckinghamshire Council | Other | 6 | £538k | 0.4% | 2023-11-07 |
| UNIVERSITY OF EXETER | Other | 2 | £512k | 0.4% | 2021-07-20 |
| Star Procurement | Other | 1 | £500k | 0.4% | 2016-02-01 |
| Barnsley College | Other | 1 | £449k | 0.3% | 2018-05-01 |
| London Borough of Merton | Other | 3 | £431k | 0.3% | 2025-10-29 |
| Foreign Commonwealth and Development Office | Other | 2 | £398k | 0.3% | 2021-12-23 |
| Capital City College Group | Other | 1 | £375k | 0.3% | 2023-10-02 |
| Chesterfield CollegeNew | Other | 1 | £301k | 0.2% | 2026-01-07 |
| Nottinghamshire County CouncilNew | Other | 1 | £293k | 0.2% | 2025-02-23 |
| LEEDS TRINITY UNIVERSITY | Other | 3 | £281k | 0.2% | 2023-02-14 |
| Barnsley Metropolitan Borough Council | Other | 2 | £278k | 0.2% | 2024-11-18 |
| Luton Council | Other | 2 | £270k | 0.2% | 2026-04-30 |
| Hampshire County Council | Other | 2 | £261k | 0.2% | 2025-04-30 |
| Boston CollegeNew | Other | 1 | £242k | 0.2% | 2025-03-24 |
| Sheffield City Council | Other | 1 | £239k | 0.2% | 2023-01-01 |
| THE UNIVERSITY OF BIRMINGHAM | Other | 4 | £179k | 0.1% | 2023-11-17 |
| Derbyshire County Council | Other | 1 | £174k | 0.1% | 2018-10-31 |
| Herefordshire Council | Other | 2 | £172k | 0.1% | 2025-04-09 |
| Sheffield Hallam University | Other | 2 | £171k | 0.1% | 2023-08-25 |
| NORTH EAST SURREY COLLEGE OF TECHNOLOGY TRUST | Other | 1 | £168k | 0.1% | 2020-06-01 |
| NHS England | Other | 2 | £153k | 0.1% | 2025-06-23 |
| UNIVERSITY OF DERBY | Other | 2 | £146k | 0.1% | 2024-05-03 |
| North Northamptonshire Council | Other | 1 | £143k | 0.1% | 2024-04-18 |
| Cambridge Regional CollegeNew | Other | 1 | £137k | 0.1% | 2024-07-25 |
| LIVERPOOL HOPE UNIVERSITYNew | Other | 3 | £133k | 0.1% | 2025-06-05 |
| Suffolk County Council | Other | 1 | £126k | 0.1% | 2021-05-31 |
| Bridgend College | Other | 2 | £120k | 0.1% | |
| UNIVERSITY OF CENTRAL LANCASHIRE HEC | Other | 1 | £120k | 0.1% | 2018-11-06 |
| New College SwindonNew | Other | 1 | £118k | 0.1% | 2025-07-11 |
| Construction Industry Training BoardNew | Other | 1 | £109k | 0.1% | 2026-02-01 |
| Kent County Council | Other | 1 | £105k | 0.1% | 2022-10-01 |
| Bradford College | Other | 2 | £97k | 0.1% | 2021-02-05 |
| City of London Corporation | Other | 1 | £95k | 0.1% | 2023-04-01 |
| UNIVERSITY OF SUSSEX(THE) | Other | 1 | £71k | 0.1% | 2023-04-25 |
| Southampton Solent University | Other | 2 | £71k | 0.1% | 2018-05-10 |
| Tyne Coast CollegeNew | Other | 1 | £61k | 0.0% | 2024-07-31 |
| Health Education England | Other | 1 | £55k | 0.0% | 2022-04-01 |
| University of Bedfordshire | Other | 1 | £46k | 0.0% | 2019-07-31 |
| Leicestershire County Council | Other | 2 | £34k | 0.0% | 2021-09-28 |
| North Yorkshire County Council | Other | 1 | £33k | 0.0% | 2023-08-01 |
| Caerphilly County Borough CouncilNew | Other | 2 | £27k | 0.0% | 2025-12-09 |
| CRESCENT PURCHASING LIMITED | Other | 5 | £0k | 0.0% | 2018-08-23 |
| UNIVERSITY OF EAST ANGLIANew | Other | 4 | £0k | 0.0% | 2025-10-14 |
| University of Northampton e-Tendering | Other | 1 | £0k | 0.0% | 2019-12-20 |
| Hartlepool Borough Council | Other | 1 | £0k | 0.0% | 2018-03-23 |
| CANTERBURY CHRIST CHURCH UNIVERSITY | Other | 1 | £0k | 0.0% | 2018-03-05 |
| Somerset Council | Other | 1 | £0k | 0.0% | |
| Oxford Brookes University | Other | 1 | £0k | 0.0% | |
| Kent County Council (t/a KCS) | Other | 1 | £0k | 0.0% | |
| UHI Executive Office | Other | 1 | £0k | 0.0% | |
| Liverpool City Council | Other | 1 | £0k | 0.0% | |
| Aberystwyth University | Other | 1 | £0k | 0.0% | |
| CPD - Supplies and Services Division | Other | 1 | £0k | 0.0% | |