DESNZ · public beta
Find ways to save energy in your home
"An online government tool that provides personalised recommendations for energy-saving improvements in homes in England and Wales."
Publicly known
- Owner: DESNZ
- Vendor: Softwire Technology Limited
Undisclosed
- Model architecture
- Model performance benchmarks
- Training data provenance
Who is actually being paid
Softwire Technology Limited
03824658Role
A third-party supplier has been engaged to support the development, build, and deployment of the algorithmic tool. They were responsible for creating the technical solution, implementing the eligibility logic, and ensuring the service met the required performance and security standards. The same supplier now provides ongoing maintenance, support, and continuous improvement to ensure the tool remains accurate, reliable, and up to date.
Procurement procedure
The third-party supplier was contracted via a G-Cloud 14 framework call-off procedure, in line with government procurement guidelines.
Data access terms
The third party is granted limited access to data strictly for the purposes of developing, maintaining, and supporting the service. Access is provided under contractual data protection obligations, with controls in place to ensure data is accessed only when necessary and handled in accordance with GDPR and departmental security requirements.
Verified at Companies House · checked 4 November 2026
Registered as SOFTWIRE TECHNOLOGY LIMITED · Active · incorporated 1999
View on the registerSource: ATRS record · last updated Mon Mar 30 2026