| Ref. | Contract Name | Supplier Name | Total Value | Start Date | Period (months) | End Date |
| HCC0700534 | BT Assured Service Master Agreement (MSA077), umbrella agreement for all BT services supplied to HCC. | BRITISH TELECOM PLC | £10,500,000.00 | 29/06/2007 | 200 | 27/02/2024 |
| HCC1003426 | Maintenance agreement to cover the orbitel 7 call logging system | Nu Technologies Ltd | £16,000.00 | 14/01/2023 | 12 | 13/01/2024 |
| HCC2315182 | Provision of monitored lone worker and personal safety devices / apps to assist staff in carrying out their duties more safely and minimising risk. Call of from Suffolk CC Framework ref CD1167-2 between the Authority and the Supplier dated 12th January 2022. | Totalmobile Ltd | £50,000.00 | 08/11/2023 | 48 | 07/11/2027 |
| HCC1003219 | Provision of small proprietary telephone systems fully compatible with HCC network technical requirements together with associated wiring and maintenance.
| Grapevine Communications (London) Ltd | £6,115.00 | 01/04/2023 | 12 | 31/03/2024 |
| HCC1911873 | Seeking a new provider for the Intalink website | Passenger Technology Group Ltd | £95,000.00 | 13/01/2020 | 60 | 12/01/2025 |
| HCC1407728 | Superfast Broadband Extension Programme | BT Openreach | £14,500,000.00 | 01/03/2015 | 144 | 28/02/2027 |
| HCC1709949 | Supply and support of peripheral voice systems to support call redirection, voicemail and advanced ACD throughout Hertfordshire County Council | Netcall Telecom Ltd | £685,000.00 | 24/07/2016 | 96 | 24/07/2024 |