| DEFRANew | Other | 1 | £15m | 48.3% | 2024-11-07 |
| Espo | Other | 11 | £3m | 9.9% | 2022-09-29 |
| The Association of North East Councils Limited | Other | 5 | £2m | 6.6% | 2022-08-02 |
| YPO | Other | 18 | £2m | 5.4% | 2019-08-19 |
| EA | Other | 1 | £960k | 3.1% | 2023-10-25 |
| Highlands & Islands Airport Ltd | Other | 1 | £860k | 2.8% | 2021-03-19 |
| Bristol City Council | Other | 6 | £824k | 2.7% | 2026-03-23 |
| The Royal Parks Limited | Other | 5 | £822k | 2.6% | 2024-04-04 |
| Waverley Borough CouncilNew | Other | 4 | £637k | 2.1% | 2025-10-27 |
| Royal Borough of GreenwichNew | Other | 2 | £563k | 1.8% | 2026-02-26 |
| Basingstoke and Deane Borough Council | Other | 2 | £517k | 1.7% | 2023-12-01 |
| Forestry Commission England | Other | 4 | £455k | 1.5% | 2021-11-26 |
| Brighton and Hove City Council | Other | 2 | £400k | 1.3% | 2024-06-05 |
| South Gloucestershire Council | Other | 4 | £393k | 1.3% | 2023-06-13 |
| Dartford Borough Council | Other | 1 | £267k | 0.9% | 2020-11-27 |
| Folkestone and Hythe District Council | Other | 3 | £210k | 0.7% | 2024-06-26 |
| UBICO LIMITED | Other | 9 | £207k | 0.7% | 2023-04-17 |
| Eastleigh Borough Council | Other | 1 | £197k | 0.6% | 2023-02-01 |
| Three Rivers District Council | Other | 4 | £186k | 0.6% | 2024-03-14 |
| Natural England | Other | 3 | £142k | 0.5% | 2026-01-05 |
| Southampton City Council | Other | 2 | £134k | 0.4% | 2025-02-03 |
| Ashford Borough Council | Other | 5 | £119k | 0.4% | 2016-09-30 |
| Babergh and Mid Suffolk District CouncilsNew | Other | 1 | £115k | 0.4% | 2025-02-27 |
| London Borough of Redbridge | Other | 2 | £113k | 0.4% | 2022-07-28 |
| Kent & Medway Fire & Rescue Authority | Other | 1 | £112k | 0.4% | 2020-05-22 |
| Watford Borough Council | Other | 5 | £109k | 0.3% | 2022-07-06 |
| Board of Trustees of the Royal Botanic Gardens Kew | Other | 3 | £95k | 0.3% | 2020-11-20 |
| CLARION HOUSING GROUP LIMITED | Other | 2 | £94k | 0.3% | 2020-08-28 |
| LONDON BOROUGH OF HAVERING | Other | 1 | £90k | 0.3% | 2022-08-08 |
| Lewisham Homes Ltd | Other | 1 | £81k | 0.3% | 2021-08-05 |
| Test Valley Borough Council | Other | 1 | £78k | 0.2% | 2022-07-29 |
| North Northamptonshire Council | Other | 1 | £73k | 0.2% | 2024-04-04 |
| London Borough of CroydonNew | Other | 1 | £56k | 0.2% | 2024-05-30 |
| City of London Corporation | Other | 1 | £56k | 0.2% | 2023-09-13 |
| Slough Borough CouncilNew | Other | 1 | £50k | 0.2% | 2025-10-14 |
| West Swindon Parish Council | Other | 1 | £46k | 0.1% | 2023-04-01 |
| ANIMAL AND PLANT HEALTH AGENCY | Other | 1 | £41k | 0.1% | 2024-03-06 |
| Stone Parish Council | Other | 1 | £40k | 0.1% | 2021-03-18 |
| Dover District Council | Other | 1 | £30k | 0.1% | 2023-11-07 |
| Guildford Borough Council | Other | 1 | £30k | 0.1% | 2022-12-29 |
| Bath and North East Somerset Council | Other | 1 | £29k | 0.1% | 2022-04-01 |
| Royal Holloway and Bedford New CollegeNew | Other | 1 | £26k | 0.1% | 2025-02-15 |
| Banbury Town Council | Other | 2 | £26k | 0.1% | 2020-02-13 |
| London Borough of Ealing | Other | 1 | £10k | 0.0% | 2019-06-14 |
| Newcastle City Council | Other | 1 | £8k | 0.0% | 2021-08-09 |
| ANSA ENVIRONMENTAL SERVICES LIMITED | Other | 1 | £8k | 0.0% | 2022-07-22 |
| BIP SOLUTIONS LIMITED | Other | 1 | £0k | 0.0% | 2018-08-23 |
| Portsmouth City Council | Other | 1 | £0k | 0.0% | 2017-02-27 |
| Surrey County Council | Other | 1 | £0k | 0.0% | |
| NORTHUMBRIAN WATER LIMITED | Other | 1 | £0k | 0.0% | |
| Crawley Borough Council | Other | 1 | £0k | 0.0% | |