| The Association of North East Councils Limited | Other | 5 | £26m | 21.6% | 2025-02-03 |
| Global Commercial Services Group LtdNew | Other | 2 | £13m | 10.4% | 2025-11-27 |
| Leeds City Council | Other | 6 | £8m | 6.8% | 2026-01-07 |
| London Borough of Barnet | Other | 2 | £6m | 5.2% | 2020-03-06 |
| London Borough of Ealing | Other | 1 | £6m | 4.9% | 2019-06-12 |
| YPO | Other | 1 | £6m | 4.8% | 2019-09-19 |
| Hertfordshire County Council | Other | 6 | £6m | 4.7% | 2023-03-17 |
| Bath and North East Somerset Council | Other | 5 | £5m | 4.3% | 2024-08-02 |
| Selby District Council | Other | 2 | £4m | 3.5% | 2021-05-04 |
| London Borough of Lewisham | Other | 2 | £4m | 3.3% | 2019-09-26 |
| City of York Council | Other | 14 | £3m | 2.7% | 2025-02-13 |
| North Yorkshire County Council | Other | 3 | £3m | 2.6% | 2025-10-30 |
| DERBY CITY COUNCIL | Other | 16 | £3m | 2.6% | 2023-08-06 |
| Kirklees Metropolitan Council | Other | 3 | £3m | 2.4% | 2022-04-26 |
| Wigan Council | Other | 3 | £2m | 1.4% | 2025-03-17 |
| West Suffolk Council | Other | 2 | £2m | 1.3% | 2020-08-06 |
| St Helens Council | Other | 1 | £1m | 1.2% | 2020-11-16 |
| City of Bradford Metropolitan District CouncilNew | Other | 1 | £1m | 1.2% | 2025-04-14 |
| Conwy County Borough Council | Other | 7 | £1m | 1.1% | 2025-10-02 |
| Northumberland County CouncilNew | Other | 2 | £1m | 1.0% | 2025-12-09 |
| Bolsover District Council | Other | 2 | £1m | 0.8% | 2024-07-26 |
| Newcastle City Council | Other | 3 | £962k | 0.8% | 2024-06-12 |
| Dudley Metropolitan Borough Council | Other | 1 | £723k | 0.6% | 2020-08-28 |
| Durham County Council | Other | 2 | £699k | 0.6% | 2024-09-27 |
| Cumberland Council | Other | 1 | £680k | 0.6% | 2024-04-23 |
| Walsall CouncilNew | Other | 3 | £675k | 0.6% | 2024-10-29 |
| Newcastle-under-Lyme Borough Council | Other | 2 | £633k | 0.5% | 2023-04-14 |
| Canterbury City Council | Other | 1 | £605k | 0.5% | 2020-12-07 |
| Blackpool Council | Other | 2 | £541k | 0.5% | 2022-08-12 |
| South Gloucestershire Council | Other | 1 | £526k | 0.4% | 2019-05-10 |
| Hartlepool Borough Council | Other | 3 | £514k | 0.4% | 2023-11-09 |
| Ministry of JusticeNew | Other | 2 | £493k | 0.4% | 2024-12-11 |
| Rochdale Metropolitan Borough Council | Other | 2 | £493k | 0.4% | 2022-12-15 |
| Middlesbrough Council | Other | 2 | £485k | 0.4% | 2025-01-22 |
| Via East Midlands LTD | Other | 1 | £464k | 0.4% | 2022-08-01 |
| UBICO LIMITED | Other | 3 | £433k | 0.4% | 2023-04-05 |
| RUGBY BOROUGH COUNCIL | Other | 3 | £406k | 0.3% | 2024-03-07 |
| North East Lincolnshire Council | Other | 3 | £393k | 0.3% | 2026-02-10 |
| South Derbyshire District CouncilNew | Other | 3 | £383k | 0.3% | 2025-05-21 |
| Harrogate Borough Council | Other | 4 | £351k | 0.3% | 2021-10-31 |
| Kirklees Council | Other | 1 | £313k | 0.3% | 2022-04-26 |
| Gwynedd Council | Other | 2 | £302k | 0.3% | 2020-12-04 |
| East Dunbartonshire Council | Other | 2 | £301k | 0.3% | 2020-03-10 |
| Horsham District Council | Other | 2 | £277k | 0.2% | 2023-12-19 |
| London Borough of Hounslow | Other | 1 | £273k | 0.2% | 2020-12-18 |
| Gateshead CouncilNew | Other | 1 | £260k | 0.2% | 2025-05-27 |
| Bury Council | Other | 2 | £252k | 0.2% | 2023-03-10 |
| Runnymede Borough Council | Other | 2 | £204k | 0.2% | 2022-10-20 |
| Bristol City Council | Other | 2 | £197k | 0.2% | 2024-06-26 |
| High Peak Borough Council | Other | 1 | £189k | 0.2% | 2022-07-20 |
| Nuneaton & Bedworth Borough Council | Other | 1 | £185k | 0.2% | 2023-10-10 |
| Nottinghamshire County Council | Other | 1 | £180k | 0.1% | 2023-08-28 |
| Rossendale Borough CouncilNew | Other | 1 | £178k | 0.1% | 2025-07-09 |
| East Staffordshire Borough CouncilNew | Other | 1 | £145k | 0.1% | 2024-10-01 |
| Ubico Ltd | Other | 1 | £140k | 0.1% | 2021-06-22 |
| South Northamptonshire Council | Other | 1 | £140k | 0.1% | 2019-09-04 |
| Cheshire West and Chester Council | Other | 1 | £120k | 0.1% | 2022-11-09 |
| London Borough of Newham | Other | 1 | £107k | 0.1% | 2019-11-01 |
| Stoke-on-Trent City Council | Other | 2 | £84k | 0.1% | 2020-05-28 |
| Halton Borough Council | Other | 1 | £83k | 0.1% | 2021-06-10 |
| LONDON BOROUGH OF HAVERING | Other | 1 | £81k | 0.1% | 2024-02-01 |
| West Northamptonshire Council | Other | 1 | £64k | 0.1% | 2023-02-27 |
| Castle Point Borough CouncilNew | Other | 1 | £60k | 0.0% | 2026-03-16 |
| Stroud District Council | Other | 1 | £54k | 0.0% | 2019-10-25 |
| Luton CouncilNew | Other | 1 | £52k | 0.0% | 2026-04-09 |
| Stockton on Tees Borough Council | Other | 1 | £51k | 0.0% | 2022-07-28 |
| Redcar and Cleveland Borough Council | Other | 1 | £30k | 0.0% | 2021-06-15 |
| City of Doncaster CouncilNew | Other | 2 | £25k | 0.0% | 2024-10-04 |
| Nottingham City Council | Other | 2 | £0k | 0.0% | |
| Derbyshire County Council | Other | 3 | £0k | 0.0% | |
| East Ayrshire Council | Other | 11 | £0k | 0.0% | |
| North Ayrshire Council | Other | 2 | £0k | 0.0% | |
| Lancaster City Council | Other | 1 | £0k | 0.0% | |
| Scotland Excel | Other | 3 | £0k | 0.0% | |
| South Ayrshire Council | Other | 4 | £0k | 0.0% | |
| City & County of Swansea | Other | 1 | £0k | 0.0% | |
| Scottish Water | Other | 1 | £0k | 0.0% | |
| Cyngor Bwrdeistref Sirol Merthyr Tudful Merthyr Tydfil County Borough Council | Other | 1 | £0k | 0.0% | |
| Glasgow City Council | Other | 1 | £0k | 0.0% | |