| Espo | Other | 10 | £6m | 27.7% | 2023-12-07 |
| Luton Council | Other | 4 | £5m | 23.3% | 2022-09-28 |
| N H S Shared Business ServicesNew | Other | 1 | £2m | 9.8% | 2024-09-13 |
| Sheffield Teaching Hospitals NHS Foundation Trust | Other | 1 | £2m | 9.0% | 2023-01-30 |
| DVSA - Driver and Vehicle Standards Agency | Other | 2 | £1m | 5.6% | 2025-02-13 |
| Sovereign Housing Association Ltd | Other | 1 | £1m | 4.8% | 2019-10-01 |
| CRESCENT PURCHASING LIMITED | Other | 3 | £544k | 2.6% | 2022-12-20 |
| General Medical Council (GMC) | Other | 1 | £400k | 1.9% | 2019-03-25 |
| SE Shared Services | Other | 1 | £375k | 1.8% | 2018-05-10 |
| NHS Supply Chain | Other | 1 | £333k | 1.6% | 2018-07-12 |
| Derbyshire Support and Facilities Services Limited | Other | 3 | £276k | 1.3% | 2025-04-30 |
| Writtle College | Other | 2 | £188k | 0.9% | 2017-08-01 |
| The University of Nottingham | Other | 1 | £188k | 0.9% | 2017-08-23 |
| NOTTINGHAM COMMUNITY HOUSING ASSOCIATION 2014 LIMITED | Other | 1 | £183k | 0.9% | 2022-07-19 |
| East Sussex County Council | Other | 1 | £175k | 0.8% | 2023-06-12 |
| Longhurst Group | Other | 1 | £164k | 0.8% | 2021-01-24 |
| FINANCIAL SERVICES COMPENSATION SCHEME LIMITEDNew | Other | 1 | £163k | 0.8% | 2025-10-20 |
| Metropolitan Police Service | Other | 1 | £140k | 0.7% | 2019-06-07 |
| Alliance Homes | Other | 1 | £118k | 0.6% | 2020-12-09 |
| Kent County Council | Other | 2 | £98k | 0.5% | 2023-06-14 |
| UK SHARED BUSINESS SERVICES LIMITED | Other | 1 | £85k | 0.4% | 2016-11-08 |
| University Of The West Of England | Other | 2 | £83k | 0.4% | 2025-12-11 |
| Liverpool John Moores UniversityNew | Other | 1 | £73k | 0.3% | 2025-07-21 |
| NOTTINGHAMSHIRE POLICE | Other | 1 | £62k | 0.3% | 2024-02-20 |
| Hull University Teaching Hospitals NHS Trust | Other | 1 | £59k | 0.3% | 2021-09-02 |
| West Sussex County Council | Other | 1 | £58k | 0.3% | 2022-03-15 |
| Office for National StatisticsNew | Other | 1 | £58k | 0.3% | 2024-09-25 |
| BIRMINGHAM CHILDRENS HOSPITAL | Other | 2 | £57k | 0.3% | 2020-03-31 |
| DERBY HOMES LIMITED | Other | 1 | £55k | 0.3% | 2019-07-25 |
| Derby Homes Ltd | Other | 1 | £55k | 0.3% | 2018-10-17 |
| North Devon District Council | Other | 1 | £45k | 0.2% | 2019-06-18 |
| THE HORNIMAN PUBLIC MUSEUM AND PUBLIC PARK TRUSTNew | Other | 1 | £45k | 0.2% | 2025-10-27 |
| Darlington Borough Council | Other | 2 | £36k | 0.2% | 2018-10-01 |
| Gov Facility Services Ltd | Other | 1 | £34k | 0.2% | |
| Warwickshire Police | Other | 1 | £30k | 0.1% | 2021-03-10 |
| East and North Hertfordshire NHS Trust | Other | 1 | £30k | 0.1% | 2023-05-12 |
| CANTERBURY CHRIST CHURCH UNIVERSITY | Other | 1 | £0k | 0.0% | 2019-12-20 |
| University of Chester | Other | 1 | £0k | 0.0% | 2016-06-23 |
| TRINITY HOUSE | Other | 1 | £0k | 0.0% | |
| PHOENIX COMMUNITY HOUSING ASSOCIATION (BELLINGHAM AND DOWNHAM) LIMITED | Other | 2 | £0k | 0.0% | |
| NATIONAL GRID ELECTRICITY DISTRIBUTION PLC | Other | 1 | £0k | 0.0% | |
| ANGLIAN WATER SERVICES LIMITED | Other | 1 | £0k | 0.0% | |
| SOUTHERN WATER SERVICES LIMITED | Other | 1 | £0k | 0.0% | |
| Procurement Services - Lifecycle on behalf of COMMERCIAL SERVICES KENT LIMITED | Other | 1 | £0k | 0.0% | |
| KBS MARITIME LIMITED | Other | 1 | £0k | 0.0% | |
| University of Wales Trinity Saint David | Other | 1 | £0k | 0.0% | |
| NHS SHARED BUSINESS SERVICES LIMITED | Other | 3 | £0k | 0.0% | |
| Amplius Living | Other | 1 | £0k | 0.0% | |
| CITY HOSPITALS INDEPENDENT COMMERCIAL ENTERPRISES LIMITED | Other | 1 | £0k | 0.0% | |
| Public Sector | Other | 3 | £0k | 0.0% | |