| UK SHARED BUSINESS SERVICES LIMITED | Other | 35 | £4m | 13.1% | 2025-11-21 |
| Homes England (the name adopted by the Homes and Communities Agency) | Other | 16 | £4m | 12.3% | 2025-07-29 |
| DERBY CITY COUNCIL | Other | 1 | £3m | 9.8% | 2017-08-29 |
| N H S Shared Business Services | Other | 1 | £3m | 9.3% | 2024-01-26 |
| Espo | Other | 4 | £3m | 8.1% | 2021-08-22 |
| DEPARTMENT FOR LEVELLING UP, HOUSING AND COMMUNITIES | Other | 2 | £2m | 6.0% | 2022-10-24 |
| Department for Science, Innovation & Technology | Other | 4 | £1m | 4.1% | 2025-10-27 |
| British Business Bank | Other | 7 | £1m | 3.6% | 2025-12-17 |
| UK Shared Business Services Ltd | Other | 1 | £1m | 3.3% | 2016-01-01 |
| Department for Education | Other | 5 | £775k | 2.4% | 2020-04-15 |
| Cambridgeshire County Council | Other | 2 | £769k | 2.4% | 2023-05-05 |
| Department for Culture, Media and Sport | Other | 7 | £703k | 2.2% | 2025-12-03 |
| Greater Manchester Combined Authority - GMP | Other | 6 | £542k | 1.7% | 2025-10-17 |
| Care Quality Commission | Other | 14 | £479k | 1.5% | 2024-07-12 |
| DEFRA | Other | 5 | £465k | 1.4% | 2023-05-01 |
| Health Education England | Other | 3 | £420k | 1.3% | 2022-03-20 |
| The Arts Council of England | Other | 8 | £301k | 0.9% | 2023-04-18 |
| Tees Valley Combined Authority | Other | 3 | £294k | 0.9% | 2022-02-25 |
| Manchester City Council | Other | 4 | £291k | 0.9% | 2023-08-15 |
| Department for Energy Security & Net Zero | Other | 1 | £279k | 0.9% | 2024-01-26 |
| London Borough of Ealing | Other | 1 | £250k | 0.8% | 2019-04-26 |
| Supply Hertfordshire | Other | 1 | £250k | 0.8% | 2019-01-07 |
| Office for Students | Other | 2 | £248k | 0.8% | 2020-06-12 |
| Crown Commercial Service | Other | 2 | £241k | 0.7% | 2017-09-14 |
| NHS South of England Procurement Services | Other | 1 | £224k | 0.7% | 2019-01-08 |
| ICS on behalf of DSIT and DESNZNew | Other | 1 | £207k | 0.6% | 2025-12-09 |
| UK Research and Innovation | Other | 3 | £178k | 0.5% | 2026-04-08 |
| NHS England (Commissioning Board) | Other | 2 | £169k | 0.5% | 2021-03-18 |
| Tower Hamlets | Other | 1 | £168k | 0.5% | 2020-12-14 |
| Nottingham City Council | Other | 1 | £150k | 0.5% | 2023-09-13 |
| NHS England | Other | 2 | £133k | 0.4% | 2022-08-11 |
| Big Lottery Fund, operating as The National Lottery Community Fund | Other | 1 | £125k | 0.4% | 2023-11-20 |
| Homes and Communities Agency | Other | 1 | £124k | 0.4% | 2018-01-15 |
| West Yorkshire Combined AuthorityNew | Other | 5 | £120k | 0.4% | 2026-04-07 |
| The Education and Training Foundation | Other | 5 | £119k | 0.4% | 2022-02-28 |
| Department for International Trade | Other | 1 | £114k | 0.3% | 2021-12-16 |
| Architects Registration Board | Other | 1 | £100k | 0.3% | 2020-05-22 |
| Liverpool City Region Combined Authority | Other | 2 | £95k | 0.3% | 2023-04-11 |
| Devon County Council | Other | 2 | £95k | 0.3% | 2023-03-20 |
| Herefordshire Council | Other | 1 | £86k | 0.3% | 2022-05-30 |
| Kirklees Council | Other | 2 | £80k | 0.2% | 2021-11-15 |
| The University of Nottingham | Other | 2 | £79k | 0.2% | 2017-10-13 |
| Isle of Wight Council | Other | 3 | £77k | 0.2% | 2022-10-13 |
| University Of The West Of England | Other | 1 | £70k | 0.2% | 2016-07-25 |
| Sheffield City Council | Other | 1 | £67k | 0.2% | 2018-09-07 |
| Blackpool Council | Other | 1 | £63k | 0.2% | 2023-01-16 |
| HEE | Other | 1 | £62k | 0.2% | 2021-10-18 |
| THE UNIVERSITY OF BIRMINGHAM | Other | 1 | £61k | 0.2% | 2024-05-22 |
| North Northamptonshire CouncilNew | Other | 1 | £56k | 0.2% | 2024-10-24 |
| Rochdale Metropolitan Borough Council | Other | 1 | £50k | 0.2% | 2022-02-16 |
| Breckland District Council and South Holland District Council | Other | 2 | £50k | 0.2% | 2022-09-12 |
| Swale Borough Council | Other | 1 | £50k | 0.2% | 2022-02-18 |
| BFI | Other | 2 | £43k | 0.1% | 2022-07-04 |
| NHS Shared Business Services (SBS) | Other | 1 | £42k | 0.1% | 2019-11-04 |
| Durham County Council | Other | 1 | £40k | 0.1% | 2022-08-22 |
| Borough Council of Kings Lynn and West Norfolk | Other | 1 | £39k | 0.1% | 2021-03-16 |
| East Sussex County Council | Other | 1 | £38k | 0.1% | 2022-06-01 |
| Merseytravel | Other | 1 | £36k | 0.1% | 2017-08-15 |
| Wiltshire Council | Other | 1 | £35k | 0.1% | 2018-01-01 |
| Medway Council | Other | 1 | £35k | 0.1% | 2020-01-23 |
| THE FINANCIAL REPORTING COUNCIL LIMITED | Other | 1 | £35k | 0.1% | 2020-01-07 |
| Durham University | Other | 1 | £32k | 0.1% | 2021-01-26 |
| London Waste & Recycling BoardNew | Other | 1 | £30k | 0.1% | 2024-12-20 |
| THE BUSINESS GROWTH HUB LIMITED | Other | 1 | £29k | 0.1% | 2016-05-12 |
| East Hampshire District Council | Other | 2 | £26k | 0.1% | 2021-06-17 |
| Buckinghamshire Council | Other | 1 | £25k | 0.1% | 2024-03-20 |
| North Kesteven District Council | Other | 1 | £25k | 0.1% | 2022-06-10 |
| Central Bedfordshire Council | Other | 1 | £25k | 0.1% | 2020-11-30 |
| Department of Health and Social Care (DHSC) | Other | 1 | £24k | 0.1% | 2023-01-16 |
| HISTORIC ENGLAND LIMITED | Other | 1 | £20k | 0.1% | 2018-12-10 |
| Historic England | Other | 2 | £15k | 0.0% | 2020-03-26 |
| Waste and Resources Action ProgrammeNew | Other | 4 | £0k | 0.0% | 2026-01-12 |
| Suffolk County Council | Other | 1 | £0k | 0.0% | 2024-03-20 |
| North West Leicestershire District Council | Other | 1 | £0k | 0.0% | 2019-05-17 |
| Cherwell District & South Northamptonshire Council | Other | 1 | £0k | 0.0% | 2018-03-01 |
| Skills Development Scotland Co. Limited | Other | 1 | £0k | 0.0% | |
| Highlands and Islands Enterprise | Other | 2 | £0k | 0.0% | |
| Ashfield District Council | Other | 1 | £0k | 0.0% | |
| Hertfordshire County Council | Other | 2 | £0k | 0.0% | |
| Armagh City, Banbridge and Craigavon Borough Council | Other | 2 | £0k | 0.0% | |
| Invest Northern Ireland | Other | 1 | £0k | 0.0% | |