| H M REVENUE & CUSTOMSNew | Other | 1 | £167m | 72.3% | 2025-06-18 |
| Crown Commercial Service | Other | 1 | £26m | 11.5% | 2020-02-03 |
| The Insolvency ServiceNew | Other | 1 | £10m | 4.2% | 2024-07-25 |
| HM Revenue & Customs | Other | 3 | £9m | 3.9% | 2021-05-19 |
| Department of Health and Social Care (DHSC)New | Other | 1 | £3m | 1.3% | 2024-07-31 |
| Devon & Somerset Fire & Rescue Service | Other | 1 | £3m | 1.1% | 2020-05-27 |
| BANK OF ENGLAND | Other | 2 | £2m | 0.8% | 2022-11-21 |
| Dorset Council | Other | 1 | £1m | 0.5% | 2019-12-20 |
| Supply Hertfordshire | Other | 1 | £1m | 0.4% | 2019-12-20 |
| Sefton Council | Other | 2 | £823k | 0.4% | 2025-09-12 |
| Lancashire County Council | Other | 1 | £817k | 0.4% | 2019-01-02 |
| Leicestershire County Council | Other | 2 | £800k | 0.3% | 2025-11-07 |
| LGSS on behalf of Cambridgeshire County Council | Other | 1 | £686k | 0.3% | 2019-11-19 |
| East Riding of Yorkshire Council | Other | 1 | £655k | 0.3% | 2020-03-23 |
| London Borough of SouthwarkNew | Other | 1 | £640k | 0.3% | 2025-09-24 |
| London Borough of Bexley | Other | 2 | £509k | 0.2% | 2023-09-29 |
| Tyne and Wear Passenger Transport Executive T/A Nexus | Other | 2 | £334k | 0.1% | 2023-09-27 |
| Stockton Borough CouncilNew | Other | 1 | £323k | 0.1% | 2024-12-03 |
| Cumbria County Council | Other | 3 | £321k | 0.1% | 2022-10-21 |
| Torus Group | Other | 2 | £300k | 0.1% | 2024-03-02 |
| Shropshire Council | Other | 2 | £280k | 0.1% | 2022-09-19 |
| Milton Keynes Council | Other | 1 | £253k | 0.1% | 2023-02-06 |
| Financial Services Compensation Scheme | Other | 1 | £230k | 0.1% | 2021-09-21 |
| Torus62 Ltd | Other | 2 | £220k | 0.1% | 2023-11-16 |
| Bedford Borough CouncilNew | Other | 1 | £213k | 0.1% | 2030-04-01 |
| North Kesteven District Council | Other | 1 | £189k | 0.1% | 2018-02-23 |
| East Sussex County Council | Other | 2 | £188k | 0.1% | 2022-08-01 |
| Folkestone and Hythe District Council | Other | 1 | £162k | 0.1% | 2021-11-30 |
| Lichfield District Council | Other | 2 | £155k | 0.1% | 2024-05-20 |
| Equality and Human Rights Commission | Other | 2 | £150k | 0.1% | 2024-09-26 |
| Herefordshire CouncilNew | Other | 1 | £120k | 0.1% | 2025-07-29 |
| Coventry City Council | Other | 1 | £120k | 0.1% | 2023-09-30 |
| capitalEsourcing | Other | 1 | £120k | 0.1% | 2019-12-03 |
| Lancaster City CouncilNew | Other | 1 | £100k | 0.0% | 2025-02-22 |
| Thirteen Housing Group Limited | Other | 1 | £93k | 0.0% | 2023-07-31 |
| Mole Valley District CouncilNew | Other | 1 | £92k | 0.0% | 2025-03-01 |
| Chelmsford City CouncilNew | Other | 1 | £90k | 0.0% | 2025-03-01 |
| Chichester District Council | Other | 1 | £90k | 0.0% | 2022-05-04 |
| Epsom and Ewell Borough CouncilNew | Other | 1 | £57k | 0.0% | 2025-06-04 |
| Epsom & Ewell Borough Council | Other | 1 | £53k | 0.0% | 2022-08-30 |
| STUDENT LOANS COMPANY LIMITED | Other | 1 | £50k | 0.0% | 2019-03-21 |
| Havant Borough CouncilNew | Other | 1 | £30k | 0.0% | 2025-07-31 |
| NHS Arden and GEM CSU | Other | 1 | £25k | 0.0% | 2022-11-14 |
| UK SHARED BUSINESS SERVICES LIMITED | Other | 1 | £0k | 0.0% | 2020-07-23 |
| Staffordshire County CouncilNew | Other | 1 | £0k | 0.0% | 2024-07-17 |
| Parliamentary and Health Service OmbudsmanNew | Other | 1 | £0k | 0.0% | 2024-11-19 |
| Financial Conduct Authority | Other | 1 | £0k | 0.0% | 2023-07-18 |
| Kirklees Council | Other | 1 | £0k | 0.0% | 2021-09-11 |
| West Lancashire Borough Council | Other | 1 | £0k | 0.0% | 2018-11-19 |
| Epsom & Ewell Borough Council | Other | 1 | £0k | 0.0% | 2018-03-30 |
| South Yorkshire Police and Crime Commissioner | Other | 1 | £0k | 0.0% | 2016-12-21 |
| London Borough of Croydon | Other | 1 | £0k | 0.0% | |
| Stockton on Tees Borough Council | Other | 1 | £0k | 0.0% | |
| CARD PROCESSING ADVISORY SERVICE LIMITED | Other | 1 | £0k | 0.0% | |
| NEPO | Other | 1 | £0k | 0.0% | |
| Leeds City Council | Other | 1 | £0k | 0.0% | |
| Hull City Council | Other | 1 | £0k | 0.0% | |
| National Employment Savings Trust (NEST) | Other | 1 | £0k | 0.0% | |
| The Association of North East Councils Limited | Other | 1 | £0k | 0.0% | |
| London Borough of Camden | Other | 1 | £0k | 0.0% | |
| South Kesteven District Council | Other | 1 | £0k | 0.0% | |