| YPO | Other | 3 | £10m | 50.8% | 2025-02-13 |
| Espo | Other | 18 | £5m | 25.4% | 2021-05-31 |
| Newcastle City Council | Other | 1 | £1m | 5.8% | 2021-05-25 |
| Leeds City Council | Other | 1 | £600k | 3.1% | 2016-11-15 |
| DERBY CITY COUNCIL | Other | 4 | £425k | 2.2% | 2026-04-02 |
| Hampshire County Council | Other | 10 | £400k | 2.1% | 2026-01-21 |
| West Midlands Combined Authority | Other | 2 | £266k | 1.4% | 2024-12-31 |
| DUDLEY MBC | Other | 1 | £236k | 1.2% | 2023-05-17 |
| City of Doncaster Council | Other | 1 | £110k | 0.6% | 2023-10-24 |
| City of Bradford Metropolitan District CouncilNew | Other | 3 | £100k | 0.5% | 2026-03-17 |
| Ministry of Justice | Other | 2 | £100k | 0.5% | 2022-03-21 |
| Sunderland City Council | Other | 1 | £100k | 0.5% | 2022-02-16 |
| Redditch Borough Council | Other | 2 | £99k | 0.5% | 2025-02-28 |
| Bournemouth Christchurch and Poole Council | Other | 1 | £86k | 0.4% | 2022-02-16 |
| Dudley Metropolitan Borough Council | Other | 2 | £79k | 0.4% | 2023-05-09 |
| UK RESEARCH & INNOVATION | Other | 1 | £63k | 0.3% | 2021-03-11 |
| Broxtowe Borough CouncilNew | Other | 1 | £57k | 0.3% | 2024-07-19 |
| Lancashire County Council | Other | 1 | £54k | 0.3% | 2016-03-07 |
| Bradford Metropolitan District Council | Other | 1 | £53k | 0.3% | 2021-02-11 |
| Bedford Borough Council | Other | 2 | £49k | 0.3% | 2025-11-26 |
| King's College Trust | Other | 1 | £49k | 0.3% | 2022-03-08 |
| London Borough of HackneyNew | Other | 1 | £48k | 0.2% | 2024-10-15 |
| University of Leeds | Other | 1 | £48k | 0.2% | 2019-05-10 |
| NORTH TYNESIDE COUNCIL | Other | 2 | £44k | 0.2% | 2023-04-25 |
| The University of Nottingham | Other | 1 | £44k | 0.2% | 2016-07-22 |
| Durham County Council | Other | 1 | £42k | 0.2% | 2021-12-20 |
| Raunds Town Council | Other | 1 | £40k | 0.2% | 2017-12-17 |
| BABCOCK INTERNATIONAL GROUP PLC | Other | 1 | £37k | 0.2% | 2018-02-16 |
| MoD, DSG, Defence Support Group (DSG) | Other | 1 | £37k | 0.2% | 2018-01-16 |
| Rotherham MBC | Other | 2 | £32k | 0.2% | 2021-10-08 |
| North Lincolnshire Council | Other | 1 | £29k | 0.2% | 2021-09-03 |
| Middlesbrough Council | Other | 1 | £27k | 0.1% | 2024-02-29 |
| Taunton Town CouncilNew | Other | 1 | £26k | 0.1% | 2025-01-22 |
| Knowsley Council | Other | 1 | £26k | 0.1% | 2023-12-01 |
| Doncaster MBC | Other | 1 | £18k | 0.1% | 2018-10-08 |
| BIP SOLUTIONS LIMITEDNew | Other | 1 | £17k | 0.1% | 2025-02-03 |
| East Lindsey District Council | Other | 1 | £16k | 0.1% | 2019-02-14 |
| Kettering Borough Council | Other | 1 | £11k | 0.1% | 2019-11-01 |
| South Tyneside Council | Other | 1 | £2k | 0.0% | 2021-09-10 |
| SUPPLY CHAIN COORDINATION LIMITEDNew | Other | 2 | £0k | 0.0% | 2025-10-10 |
| Oxford City CouncilNew | Other | 1 | £0k | 0.0% | 2024-08-22 |
| OXFORD DIRECT SERVICES LIMITED | Other | 1 | £0k | 0.0% | 2021-10-21 |
| Cornwall Council | Other | 1 | £0k | 0.0% | 2017-11-20 |
| Sandwell Metropolitan Borough Council | Other | 1 | £0k | 0.0% | 2016-11-29 |
| North Western Universities Purchasing Consortium Ltd | Other | 1 | £0k | 0.0% | |
| City & County of Swansea | Other | 1 | £0k | 0.0% | |
| Scotland Excel | Other | 4 | £0k | 0.0% | |
| Glasgow City Council | Other | 3 | £0k | 0.0% | |
| Aberdeenshire Council | Other | 1 | £0k | 0.0% | |
| Portsmouth City Council | Other | 1 | £0k | 0.0% | |
| London Borough of Bexley | Other | 1 | £0k | 0.0% | |