| Ref. | Contract Name | Supplier Name | Total Value | Start Date | Period (months) | End Date |
| HCC2315204 | A contract to collect and treat waste materials from Hertfordshire's recycling centres. | Living Fuels | £6,000.00 | 01/09/2023 | 36 | 31/08/2026 |
| HCC2415775 | A contract to collect mattresses from Hertfordshire recycling centres and process them as high up the waste hierarchy as possible. | SSSI Ltd | £1,000,000.00 | 01/08/2024 | 36 | 31/07/2027 |
| HCC2315072 | A contract to receive and/or collect various metal waste materials from Hertfordshire's recycling centres. | Nationwide Metal Recycling | £1,954,551.00 | 08/12/2023 | 36 | 07/12/2026 |
| HCC2314602 | A contract to receive and/or collect various waste materials from Hertfordshire recycling centres and process them as high up the waste hierarchy as possible. | BP Mitchell Haulage Contractors | £13,840,000.00 | 01/09/2023 | 37 | 30/09/2026 |
| HCC2314602 | A contract to receive and/or collect various waste materials from Hertfordshire recycling centres and process them as high up the waste hierarchy as possible. | Monoworld ltd | £13,840,000.00 | 01/09/2023 | 37 | 30/09/2026 |
| HCC2314602 | A contract to receive and/or collect various waste materials from Hertfordshire recycling centres and process them as high up the waste hierarchy as possible. | Pearce Recycling Co. Ltd | £13,840,000.00 | 01/09/2023 | 37 | 30/09/2026 |
| HCC2315070 | A contract to receive collected waste materials from Hertfordshire recycling centres. | Cumberlow Compost Services Ltd | £804,000.00 | 01/12/2023 | 36 | 30/11/2026 |
| HCC2315070 | A contract to receive collected waste materials from Hertfordshire recycling centres. | Elleteq Limited | £804,000.00 | 01/12/2023 | 36 | 30/11/2026 |
| HCC2315070 | A contract to receive collected waste materials from Hertfordshire recycling centres. | Envar Composting Limited | £804,000.00 | 01/12/2023 | 36 | 30/11/2026 |
| HCC2315195 | A contract to receive collected waste materials from Hertfordshire recycling centres. | Plasterboard Recycling Group Ltd | £104,000.00 | 01/09/2023 | 24 | 31/08/2025 |
| HCC2214297 | Provision of Food Waste Treatment 2024 and 2025 | Biogen (UK) Ltd | £2,500,000.00 | 28/10/2024 | 66 | 31/03/2030 |
| HCC2214297 | Provision of Food Waste Treatment 2024 and 2025 | Severn Trent Green Power Ltd | £2,500,000.00 | 28/10/2024 | 66 | 31/03/2030 |
| HCC2315415 | Provision of Organic Waste Treatment Services from 2024 and 2025 | Cumberlow Compost Services Ltd | £20,500,000.00 | 28/10/2024 | 42 | 31/03/2028 |
| HCC2315415 | Provision of Organic Waste Treatment Services from 2024 and 2025 | Elleteq Limited | £20,500,000.00 | 28/10/2024 | 42 | 31/03/2028 |
| HCC2315415 | Provision of Organic Waste Treatment Services from 2024 and 2025 | Envar Composting Limited | £20,500,000.00 | 28/10/2024 | 42 | 31/03/2028 |