| Scottish Water | Other | 1 | £60m | 42.5% | 2020-07-30 |
| Carmarthenshire County CouncilNew | Other | 8 | £32m | 22.7% | 2026-03-03 |
| Durham County Council | Other | 2 | £20m | 14.3% | 2021-08-30 |
| East Riding of Yorkshire Council | Other | 2 | £9m | 6.2% | 2025-05-29 |
| Pembrokeshire County CouncilNew | Other | 2 | £3m | 2.1% | 2026-05-12 |
| N H S Shared Business Services | Other | 1 | £3m | 2.1% | 2024-02-27 |
| Gentoo Group Limited | Other | 1 | £2m | 1.3% | 2016-05-26 |
| Cumbria County Council | Other | 1 | £2m | 1.1% | 2019-12-05 |
| Lancashire County Council | Other | 4 | £1m | 0.9% | 2022-09-06 |
| YPO | Other | 15 | £1m | 0.9% | 2016-04-26 |
| Espo | Other | 35 | £1m | 0.8% | 2021-07-05 |
| Doncaster MBC | Other | 1 | £800k | 0.6% | 2019-10-07 |
| Dorset county Council | Other | 1 | £667k | 0.5% | 2018-07-17 |
| Bournemouth Christchurch and Poole Council | Other | 1 | £615k | 0.4% | 2023-01-23 |
| Corserv Limited | Other | 3 | £590k | 0.4% | 2019-03-25 |
| North Yorkshire County Council | Other | 1 | £465k | 0.3% | 2021-04-28 |
| First Ark Group | Other | 1 | £340k | 0.2% | 2018-09-28 |
| NORTH TYNESIDE COUNCIL | Other | 2 | £333k | 0.2% | 2019-04-03 |
| Dorset Council | Other | 1 | £323k | 0.2% | 2022-09-27 |
| WAKEFIELD COUNCIL | Other | 13 | £320k | 0.2% | 2023-09-05 |
| Rotherham MBC | Other | 1 | £313k | 0.2% | 2019-07-29 |
| Birmingham City CouncilNew | Other | 1 | £299k | 0.2% | 2026-03-04 |
| East Riding of Yorkshire | Other | 3 | £288k | 0.2% | 2021-04-06 |
| Kirklees Council | Other | 1 | £230k | 0.2% | 2024-05-03 |
| Forestry England | Other | 2 | £177k | 0.1% | 2021-11-01 |
| Manchester City Council | Other | 2 | £150k | 0.1% | 2021-07-21 |
| Nottingham City Council | Other | 1 | £150k | 0.1% | 2018-12-07 |
| Stoke-on-Trent City Council | Other | 1 | £123k | 0.1% | 2018-09-03 |
| Liverpool City Council | Other | 2 | £100k | 0.1% | 2025-05-12 |
| TRINITY HOUSE | Other | 1 | £100k | 0.1% | 2016-07-13 |
| Home OfficeNew | Other | 2 | £97k | 0.1% | 2026-01-05 |
| Nottingham Trent University (NTU) | Other | 2 | £93k | 0.1% | 2023-06-14 |
| Norwich City Council e-Tendering | Other | 2 | £92k | 0.1% | 2020-03-10 |
| Derbyshire County Council | Other | 13 | £74k | 0.1% | 2016-11-22 |
| Bradford Metropolitan District Council | Other | 1 | £67k | 0.0% | 2020-03-04 |
| Norse Eastern Ltd | Other | 2 | £57k | 0.0% | 2022-12-12 |
| Bristol City Council | Other | 1 | £46k | 0.0% | 2023-06-20 |
| South Tyneside Borough CouncilNew | Other | 1 | £42k | 0.0% | 2026-03-11 |
| Leicestershire County CouncilNew | Other | 4 | £25k | 0.0% | 2025-09-01 |
| Norwich City Council | Other | 1 | £23k | 0.0% | 2017-03-07 |
| LEEDS TRINITY UNIVERSITYNew | Other | 1 | £20k | 0.0% | 2024-09-18 |
| Wolverhampton City Council | Other | 1 | £9k | 0.0% | 2019-10-07 |
| Coventry - Solihull - Warwickshire | Other | 1 | £9k | 0.0% | 2018-12-14 |
| Communities & Housing Investment Consortium Ltd (CHIC)New | Other | 1 | £0k | 0.0% | 2026-05-13 |
| Dudley Metropolitan Borough Council | Other | 3 | £0k | 0.0% | 2021-10-29 |
| Oldham Council | Other | 1 | £0k | 0.0% | 2019-10-14 |
| L&Q Construction | Other | 2 | £0k | 0.0% | 2018-12-11 |
| Sandwell Metropolitan Borough Council | Other | 1 | £0k | 0.0% | 2016-10-26 |
| Bournemouth Borough Council | Other | 1 | £0k | 0.0% | 2015-12-01 |
| South Ayrshire Council | Other | 1 | £0k | 0.0% | |
| EFFICIENCY EAST MIDLANDS LIMITED | Other | 1 | £0k | 0.0% | |
| Falkirk Council | Other | 3 | £0k | 0.0% | |
| Hull City Council | Other | 2 | £0k | 0.0% | |
| Legal, Democratic and Business Intelligence, Swansea Council, | Other | 2 | £0k | 0.0% | |
| City of Bradford Metropolitan District Council | Other | 5 | £0k | 0.0% | |
| Southern Water Services Ltd. | Other | 1 | £0k | 0.0% | |
| Scottish Borders Council | Other | 20 | £0k | 0.0% | |
| North Ayrshire Council | Other | 3 | £0k | 0.0% | |
| Natural Resources Wales | Other | 1 | £0k | 0.0% | |
| East Lothian Council | Other | 1 | £0k | 0.0% | |
| SSE plc | Other | 1 | £0k | 0.0% | |
| CalMac Ferries Limited | Other | 1 | £0k | 0.0% | |
| Fife Council | Other | 3 | £0k | 0.0% | |
| NHS SHARED BUSINESS SERVICES LIMITED | Other | 2 | £0k | 0.0% | |
| City Building (Glasgow) LLP | Other | 1 | £0k | 0.0% | |
| Blaenau Gwent County Borough Council | Other | 3 | £0k | 0.0% | |
| Scotland Excel | Other | 5 | £0k | 0.0% | |
| City & County of Swansea | Other | 1 | £0k | 0.0% | |
| Redcar and Cleveland Borough Council | Other | 2 | £0k | 0.0% | |
| NY Highways Ltd | Other | 16 | £0k | 0.0% | |
| Network Rail Infrastructure Ltd | Other | 1 | £0k | 0.0% | |
| Cumberland Council | Other | 1 | £0k | 0.0% | |
| Westmorland and Furness Council | Other | 1 | £0k | 0.0% | |
| PROCURE PLUS HOLDINGS LIMITED | Other | 1 | £0k | 0.0% | |
| Procurement Services - Lifecycle on behalf of COMMERCIAL SERVICES KENT LIMITED | Other | 2 | £0k | 0.0% | |
| Gateshead Borough Council | Other | 1 | £0k | 0.0% | |
| Department for Environment Food & Rural Affairs | Other | 1 | £0k | 0.0% | |
| The Minister for the Cabinet Office acting through Crown Commercial Service | Other | 1 | £0k | 0.0% | |
| Historic England | Other | 1 | £0k | 0.0% | |
| NUNEATON AND BEDWORTH COMMUNITY ENTERPRISES LIMITED | Other | 1 | £0k | 0.0% | |