| Espo | Other | 7 | £13m | 50.5% | 2022-07-06 |
| CIRRUS PURCHASING LTDNew | Other | 1 | £10m | 38.7% | 2025-08-27 |
| Newark & Sherwood District Council | Other | 1 | £265k | 1.0% | 2017-09-18 |
| London Borough of Hackney | Other | 4 | £202k | 0.8% | 2024-06-03 |
| Paradigm Housing GroupNew | Other | 1 | £160k | 0.6% | 2024-11-01 |
| Ofgem | Other | 3 | £152k | 0.6% | 2024-08-30 |
| West Suffolk Council | Other | 2 | £147k | 0.6% | 2023-05-18 |
| Nursing And Midwifery Council | Other | 2 | £111k | 0.4% | 2023-02-20 |
| Competition and Markets Authority | Other | 1 | £100k | 0.4% | 2023-10-10 |
| LGSS | Other | 1 | £100k | 0.4% | 2016-08-03 |
| Gateshead Council | Other | 2 | £96k | 0.4% | 2022-03-28 |
| Liverpool City Council | Other | 2 | £80k | 0.3% | 2023-11-24 |
| Hampshire County Council | Other | 1 | £79k | 0.3% | 2023-11-20 |
| Stoke-on-Trent City Council | Other | 2 | £79k | 0.3% | 2017-04-03 |
| London Borough of Bromley | Other | 1 | £60k | 0.2% | 2021-10-01 |
| Office for Nuclear Regulation | Other | 2 | £53k | 0.2% | 2024-10-18 |
| ROOFTOP HOUSING GROUP LIMITEDNew | Other | 1 | £50k | 0.2% | 2025-06-09 |
| Rotherham Metropolitan Borough CouncilNew | Other | 1 | £49k | 0.2% | 2024-10-08 |
| Tamworth Borough Council | Other | 1 | £49k | 0.2% | 2023-11-20 |
| Royal Borough of Kingston Upon Thames | Other | 1 | £47k | 0.2% | 2022-11-04 |
| Liverpool City Region Combined Authority (LCRCA) | Other | 1 | £46k | 0.2% | 2021-11-11 |
| The Pensions RegulatorNew | Other | 1 | £46k | 0.2% | 2024-07-31 |
| London Borough of Enfield | Other | 1 | £44k | 0.2% | 2021-11-12 |
| Office of Rail and Road | Other | 2 | £44k | 0.2% | 2022-10-10 |
| DEFRA | Other | 1 | £44k | 0.2% | 2020-08-26 |
| Basingstoke and Deane Borough Council | Other | 1 | £35k | 0.1% | 2020-03-03 |
| WEST KENT HOUSING ASSOCIATIONNew | Other | 1 | £34k | 0.1% | 2025-01-24 |
| General Medical Council (GMC) | Other | 1 | £33k | 0.1% | 2020-05-06 |
| Rotherham MBC | Other | 1 | £32k | 0.1% | 2020-03-12 |
| Bolton at Home | Other | 1 | £30k | 0.1% | 2024-02-19 |
| Sheffield City Council | Other | 2 | £30k | 0.1% | 2023-10-31 |
| North Yorkshire County Council | Other | 1 | £28k | 0.1% | 2023-09-14 |
| National Institute for Health and Care Excellence | Other | 1 | £28k | 0.1% | 2023-05-02 |
| London Borough of Merton | Other | 1 | £28k | 0.1% | 2019-07-16 |
| Equality and Human Rights Commission | Other | 1 | £27k | 0.1% | 2018-06-15 |
| L&Q GroupNew | Other | 1 | £27k | 0.1% | 2024-12-01 |
| Nuneaton & Bedworth Borough CouncilNew | Other | 1 | £25k | 0.1% | 2024-07-16 |
| WANDLE HOUSING ASSOCIATION LIMITEDNew | Other | 1 | £25k | 0.1% | 2024-09-23 |
| Wakefield and District Housing limited | Other | 1 | £25k | 0.1% | 2022-04-11 |
| Redditch Borough Council | Other | 1 | £25k | 0.1% | 2022-01-24 |
| Milton Keynes Council | Other | 1 | £25k | 0.1% | 2022-08-23 |
| East Suffolk District CouncilNew | Other | 1 | £25k | 0.1% | 2026-01-23 |
| Historic EnglandNew | Other | 2 | £25k | 0.1% | 2026-03-31 |
| Care Quality Commission | Other | 1 | £25k | 0.1% | 2021-07-01 |
| Barnsley Metropolitan Borough Council | Other | 1 | £25k | 0.1% | 2023-07-10 |
| West Lancashire Borough Council | Other | 1 | £25k | 0.1% | 2023-11-01 |
| Legal Services Board | Other | 1 | £24k | 0.1% | 2022-07-04 |
| The National Archives | Other | 2 | £23k | 0.1% | 2023-01-06 |
| Hertsmere Borough Council | Other | 1 | £20k | 0.1% | 2021-08-31 |
| The Charity Commission For England And Wales | Other | 1 | £17k | 0.1% | 2022-10-20 |
| Leeds City Council | Other | 1 | £14k | 0.1% | 2021-06-30 |
| Lambeth Council | Other | 1 | £6k | 0.0% | 2016-03-12 |
| Housing 21 | Other | 1 | £1k | 0.0% | 2020-07-06 |
| Nottingham City CouncilNew | Other | 2 | £0k | 0.0% | 2026-03-19 |
| North Star Housing Group Limited | Other | 1 | £0k | 0.0% | 2022-10-10 |
| PLYMOUTH COMMUNITY HOMES LIMITED | Other | 1 | £0k | 0.0% | |
| Southern Universities Purchasing Consortium (SUPC) | Other | 3 | £0k | 0.0% | |
| Cirrus Consortium c/o Halton Housing | Other | 2 | £0k | 0.0% | |
| UK Research and Innovation | Other | 1 | £0k | 0.0% | |
| Thurrock Council | Other | 1 | £0k | 0.0% | |
| New Forest District Council | Other | 1 | £0k | 0.0% | |
| Oxford City Council | Other | 1 | £0k | 0.0% | |
| City of Bradford Metropolitan District Council | Other | 1 | £0k | 0.0% | |
| Wychavon District Council | Other | 1 | £0k | 0.0% | |
| Anchor Hanover Group | Other | 1 | £0k | 0.0% | |