| Ref. | Contract Name | Supplier Name | Total Value | Start Date | Period (months) | End Date |
| HCC2516597 | Civil & Structural Engineering Services for the provision of Hitchin Road Nursing Care Home – 15–21 Hitchin Road, Stevenage for RIBA stages 0-7 | Perega Ltd | £100,000.00 | 17/02/2025 | 24 | 17/02/2027 |
| HCC2213818 | Development of detailed designs for the construction of a bypass channel on the river Chess around Scotsbridge Mill, Rickmansworth | Five Rivers Environmental Contracting | £90,000.00 | 26/05/2025 | 20 | 31/12/2026 |
| HCC2617678 | MEP Engineering services: Initial appraisal of utility services requirements, sustainability statement and energy Statement to inform Outline Planning submission | Calfordseaden LLP | £14,000.00 | 02/02/2026 | 24 | 01/02/2028 |
| HCC2617679 | MEP Engineering services: Initial appraisal of utility services requirements, sustainability statement and energy Statement to inform Outline Planning submission | Calfordseaden LLP | £14,000.00 | 02/02/2026 | 24 | 01/02/2028 |
| HCC2314703 | Term service contract for professional services. | Jacobs UK Limited | £90,000,000.00 | 01/10/2024 | 60 | 30/09/2029 |