For procurement and supply chain teams
What a housing provider, council or main contractor usually asks for when onboarding a retrofit contractor, on one page: company details, certificate numbers with their scopes and expiry dates, our policies, and one page case study summaries. Download what you need, and ask us for anything that is not here.
Details checked 19 October 2026.
Company details
Energy Giants is the trading name. Contracts, certificates and invoices are in the name of the legal entity below.
| Trading name | Energy Giants |
|---|---|
| Legal entity | Efficient Energy Systems Ltd, registered in England and Wales |
| Company number | 17329387Opens the Companies House register |
| VAT number | 525 2307 19 |
| Registered office | The Former Ambulance Station, Princess Avenue, Clitheroe, Lancashire BB7 2AL |
| Offices | Head office, Clitheroe: 01200 407790 Manchester: 0161 457 3901 London: 020 3617 7155 |
| Managing Director | Miles Sharples |
| Programme and subcontract enquiries | miles.sharples@energygiants.co.uk |
| General enquiries | hello@energygiants.co.uk |
| Where we work | Programmes across England and Wales from Clitheroe, Manchester and London. See the map of our work |
Certificates
Each one is issued by an independent body and can be checked at source. A certificate covers what its scope says and nothing more, so the scope is in the table.
| Credential | Number | Scope | Valid | Check it |
|---|---|---|---|---|
| PAS 2030:2023 | SICI23052 P2030 1 | Measure B5, flat roof insulation | To 31 August 2027 | Certificate (PDF) |
| MCS | SICI23052 MCS 1 | Solar PV (MIS 3002) and battery storage (MIS 3012) | Until 22 September 2027 | Certificate (PDF) |
| TrustMark | Licence 4257305 | TrustMark registered business | Current | TrustMark register |
| Gas Safe Register | 986000 | Domestic natural gas and LPG | Renewed annually | Gas Safe register |
| Insurance backed guarantees | Bluedrop facility | Accredited Installation Management Company under the Bluedrop Insurance Backed Guarantee facility | Current | Accreditation (PDF) |
All certificates are held by Efficient Energy Systems Ltd, trading as Energy Giants.
Policies
Our current company policies as PDFs, ready to attach to a supplier questionnaire.
Our complaints procedure and drone survey policy are on the policies page, and how we handle personal data is in our privacy policy.
Track record
Single sheet summaries for tender returns and supplier files, each with a QR code to the full case study.
Written up in full online, with the funding route, measures, scale and value.
Not on this page?
If your onboarding asks for something not listed here, such as insurance certificates, method statements for a specific job or references, email Miles and we will send it, or tell you plainly if it is something we do not hold.
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