Mace is a global construction and development firm headquartered in London.
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Mace reports mixed operational emissions (Scope 1 falling, Scope 2 rising) but excludes purchased materials and subcontracted works from Scope 3, masking the bulk of its supply-chain footprint. It missed its own 10% annual reduction target in 2024 and slipped its RE100 deadline by eight years. It stopped buying offsets in 2024. Reported total emissions nearly doubled in 2024 because embodied carbon from one development landed in that year.
Mace scores 30/100 (Significant gaps) on SINK's independent climate assessment, scored from public data only. Fees pay for the review, never the result. Last verified October 2026.
That places Mace joint 614th of 847 companies scored, and joint 21st of 26 in Construction / Real Estate.
Where Mace sits among construction / real estate peers.
Among the 26 major construction / real estate brands we've scored, Mace is tied =21st of 26, with 1 other.
Its three lowest-scoring questions, and what the evidence didn't show.
Excluding that, underlying reduction was 4.3%, missing the company's own 10% annual cut target.
Reports only T&D losses, waste, water, business travel (5,047 t) and one project's embodied carbon (10,606 t).
Water appears in FY2024 accounts only as carbon (28 tCO2e).
A score changes when the evidence does. We use new published evidence at the next rescore. Evidence that isn't public can count through an evidence review.
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Get in touch →Strongest on Carbon Footprint — Operations and Controversies & Red Flags (7/10, 7/10). Weakest on Emissions Trajectory and Carbon Footprint — Supply Chain (2/10, 3/10).
The 3 companies in the sector scoring nearest above Mace.
Persimmon reports emissions data and has SBTi-validated near-term targets, but Scope 3 relies on intensity metrics as output recovers, weakening real reduction claims.
See the breakdown →Karma Kitchen operates six-to-eight London dark kitchen sites with a small 27-person team.
See the breakdown →Tritax Big Box discloses landlord emissions rigorously but excludes the material occupier footprint—material supply-chain carbon remains unmeasured.
See the breakdown →The formula and all 14 sources.
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × Scale14 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.
Mace Consult, the group's consultancy business, was separated from Mace Group in March 2026 with investment from Goldman Sachs Alternatives. The financial and emissions figures here are for financial year 2024 and include it. Mace's reported emissions don't cover its full footprint, so the size deduction uses our standard fallback.
13 of 14 sources are independent of the company.
“94.3% increase”
“verified by independent auditors”
“Publicly disclose scope 1, 2, and partially scope 3 emissions”
“offset the remaining emissions by giving money to carbon-reduction projects”
“Mace Construct grew revenue by 21% in 2024 to £2.1bn”
“organisations are required to make a public commitment to transition to procuring, specifying or stocking 100% net-zero steel by 2050.”
“Achieve 90% of work delivered using modern methods of construction by 2026.”
“A complex project, like the London section of HS2, might involve up to 60 contractors.”
“Mace hits net zero carbon target with help of offsetting”
“business champions includes main contractors Mace, Multiplex”
“The partnership will enhance approximately 61 hectares of habitat within the 76-hectare large Thameside reserve.”
“Mace is aiming to use 75% renewable electricity for its global operations by 2019, and 100% by 2022.”
If you believe a source has been misread or a newer version exists, submit a challenge.
Mace is a global construction and development firm headquartered in London. With £2.79bn revenue (FY2024) and ~7,085 employees, it worked across construction delivery (£2.10bn) and consulting (£686.6m) that year; the consultancy business was separated from the group in March 2026. It is a major UK contractor.
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