Building Retrofit & Decarbonisation

Fabric-first retrofit, insulation and building decarbonisation programmes.

How often does the buyer go back?

Only 1 repeat award event across 1 buyer — too few to quote a percentage without misleading you, so we don’t. The count is the honest figure.

Who already holds it

Enerdata SASname merged: exact2 awards · 2 buyers · last 2024-10-24
Atkins Realis UK Limited1 awards · 1 buyers · last 2024-10-15
E.SURV LIMITED1 awards · 1 buyers · last 2025-03-28
ENERGY SAVING TRUSTname merged: exact1 awards · 1 buyers · last 2023-11-24
EXI Group Holdings1 awards · 1 buyers · last 2025-09-02
GenNorth Limited1 awards · 1 buyers · last 2025-12-30
MADE TECHname merged: exact1 awards · 1 buyers · last 2023-08-24
Purcellname merged: exact1 awards · 1 buyers · last 2024-02-13

Who broke in recently

GenNorth Limitedfirst seen 2025-12-30 · 1 award
EXI Group Holdingsfirst seen 2025-09-02 · 1 award
E.SURV LIMITEDfirst seen 2025-03-28 · 1 award

“First seen” means the first appearance under this name in published awards — not necessarily a new company. Holcim is Aggregate Industries; AtkinsRéalis is Atkins. We show this as a list and never as a trend: debut counts fall every year by construction, because the pool of never-before-seen suppliers depletes as the corpus grows. A supplier who entered last month also cannot yet show three buyers.

Why a tender lands in this category

Tier 2 · matches \y(retrofit|decarbonisation|decarbonization|insulation|fabric first|pas 2035|external wall)

Every label traces to one of these rows. Challenge any of it — the awards behind every figure are one click away.

How these numbers are made — and where they are weak

We resolve supplier identity from published award data using legal-suffix rules and a seeded alias list. We have not verified group structure, joint ventures or delivery partners against Companies House, so a group's true share may be understated. Buyer names are merged where the slug agrees — we cannot tell whether “Hackney Limited” is a council trading arm or an unrelated company, and we do not guess. Our award history begins in June 2015; 0.9% of dated awards predate it, so a “first win” is the first we can observe. Figures are shown with their method and the underlying awards are always one click away.

This is one category. Your market is a shape.

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Contains public sector information licensed under the Open Government Licence v3.0.