| Transport for London | Other | 1 | £117m | 76.4% | 2020-02-05 |
| Yorkshire Purchasing Organisation | Other | 3 | £10m | 6.5% | 2023-07-24 |
| Nuneaton & Bedworth Borough CouncilNew | Other | 1 | £5m | 2.9% | 2024-11-08 |
| Liverpool City Council | Other | 3 | £4m | 2.7% | 2025-03-20 |
| Shropshire Council | Other | 1 | £2m | 1.4% | 2019-09-03 |
| Gloucestershire County Council | Other | 1 | £2m | 1.3% | 2016-03-22 |
| Wolverhampton City Council | Other | 1 | £2m | 1.2% | 2018-11-02 |
| Leicester City Council | Other | 3 | £2m | 1.2% | 2024-08-19 |
| Nottinghamshire County Council | Other | 3 | £2m | 1.1% | 2024-08-08 |
| Nottingham City CouncilNew | Other | 2 | £1m | 0.8% | 2025-10-28 |
| Middlesbrough Council | Other | 1 | £1m | 0.8% | 2022-02-02 |
| Oldham Council | Other | 1 | £833k | 0.5% | 2024-03-19 |
| DERBY CITY COUNCILNew | Other | 1 | £785k | 0.5% | 2024-07-15 |
| Manchester City Council | Other | 5 | £729k | 0.5% | 2025-05-07 |
| Isle of Wight Council | Other | 2 | £605k | 0.4% | 2019-12-24 |
| Coventry City Council | Other | 1 | £500k | 0.3% | 2023-04-28 |
| Places for People Group Limited | Other | 1 | £500k | 0.3% | 2021-11-05 |
| Melton Borough CouncilNew | Other | 1 | £267k | 0.2% | 2025-02-20 |
| Wychavon District Council | Other | 1 | £260k | 0.2% | 2023-04-27 |
| RUGBY BOROUGH COUNCIL | Other | 1 | £200k | 0.1% | 2023-10-31 |
| South Kesteven District Council | Other | 1 | £192k | 0.1% | 2024-03-01 |
| Cambridgeshire County Council | Other | 1 | £175k | 0.1% | 2023-04-26 |
| Somerset County Council | Other | 1 | £150k | 0.1% | 2017-09-21 |
| Sheffield City Council | Other | 2 | £125k | 0.1% | 2019-08-23 |
| Welland Procurement Unit | Other | 1 | £88k | 0.1% | 2023-11-08 |
| Wealden District Council | Other | 2 | £86k | 0.1% | 2023-08-30 |
| Horsham District Council | Other | 1 | £15k | 0.0% | 2021-09-09 |
| Wiltshire Council | Other | 1 | £8k | 0.0% | 2019-11-12 |
| West Northamptonshire CouncilNew | Other | 1 | £0k | 0.0% | 2025-10-30 |
| Basingstoke and Deane Borough Council | Other | 1 | £0k | 0.0% | 2024-02-13 |
| Dudley Metropolitan Borough Council | Other | 1 | £0k | 0.0% | 2023-11-23 |
| Devon County Council | Other | 1 | £0k | 0.0% | 2023-11-06 |
| Cheshire West and Chester Council | Other | 1 | £0k | 0.0% | 2021-08-31 |
| Walsall Council e-Tendering | Other | 1 | £0k | 0.0% | 2021-08-25 |
| CROYDON COUNCIL | Other | 2 | £0k | 0.0% | 2020-03-03 |
| Doncaster MBC | Other | 1 | £0k | 0.0% | 2020-01-09 |
| Star Procurement | Other | 1 | £0k | 0.0% | 2019-08-29 |
| Stockton Borough Council | Other | 1 | £0k | 0.0% | 2019-04-23 |
| Milton Keynes Council Electronic Tendering Site | Other | 1 | £0k | 0.0% | 2017-01-03 |
| LGSS | Other | 1 | £0k | 0.0% | 2016-03-31 |
| YPO | Other | 1 | £0k | 0.0% | |
| Brighton and Hove City Council | Other | 1 | £0k | 0.0% | |
| SEVERN TRENT WATER LIMITED | Other | 1 | £0k | 0.0% | |
| Walsall Metropolitan Borough Council | Other | 1 | £0k | 0.0% | |