Mace sustainability score: 30/100
Better than 23% of Construction / Real Estate
Below expectations starts at 31. The highest score on SINK is 71.
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.
More about Mace
It is a major UK contractor.
Founded 1989Head office London, United KingdomStaff ~7,085Revenue £2.79B (FY2024; Construct £2.10B, Consult £686.6M)Website ↗
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. Scores are free. Nobody can pay to change a score, speed it up or hide it. Last verified October 2026.
That places Mace joint 731st of 1,023 companies scored, and 31st of 40 in Construction / Real Estate.
What is Mace doing well, and where does it fall short?
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).
Where Mace lost points
For each question that lost points, the evidence our public rubric looks for that we didn't find.
What would raise this score
- Whether its emissions are fallingShow its emissions are falling.
- Emissions from its supply chainAssess where its supply-chain emissions come from.
- Its effect on waterMonitor its water use and take measures to reduce it.
Every question that lost points
- Emissions from its own operations7/10Its own emissions aren't independently verified or tracked over several years.
- Emissions from its supply chain3/10No assessment of where its supply-chain emissions come from.
- Whether its emissions are falling2/10No evidence its emissions are falling.
- How clean its energy is5/10Less than half its energy shown to be renewable, or no transition plan.
- Its effect on nature5/10Its effect on nature isn't measured or independently verified.
- How it uses materials and handles waste5/10No measurable waste or recycling targets reported publicly.
- Its effect on water3/10No monitoring of water use, or no measures to reduce it.
- Its climate targets4/10Its targets aren't science-based or committed to the Science Based Targets initiative.
- How openly it reports6/10No annual impact report, or no pay linked to climate targets.
- Its record on controversies7/10Points deducted for controversies or its business model. The finding is under question 10.
A score changes when the evidence does. We use new published evidence at the next rescore. Anyone can send us new evidence, free. How to send it.
How is Mace's SINK score calculated?
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × ScaleWhat evidence is Mace's score based on?
14 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.
7% of them were published by Mace itself; the rest come from independent sources.
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.
Is this your company? Claim this profile (free)
Use this score in tenders
Send the link, or the one-page score sheet. It links back to this page and every source. Free.
Open the score sheet →Send new evidence, free
Scored low because little is published? Publish what you do and send us the link, free. If it holds up, your score changes, and the change is logged on your page.
How to send evidence →Put your score on your website, free
It shows the current band, sector rank and score, and links to this page, so it changes when the score does.
Track this score
Bidding for a public contract? Check if you need a Carbon Reduction Plan, free →
Want your own page like this?
Free, independent, every source shown. Send it to any buyer who asks about your sustainability.
How does Mace compare with other construction / real estate companies?
Where Mace sits among construction / real estate peers.
Among the 40 major construction / real estate brands we've scored, Mace sits 31st of 40.
Who scores higher in Construction / Real Estate?
The 3 companies in the sector scoring nearest above Mace.
The Crown Estate reports rising absolute emissions driven by offshore wind construction on leased seabed, with Scope 3 up 60% year-on-year.
See the breakdown →Karma Kitchen operates six-to-eight London dark kitchen sites with a small 27-person team.
See the breakdown →Galliford Try reports verified Scope 1+2 emissions but full Scope 3 remains unquantified, with materials-related emissions (95% of footprint) tracked only via unverified spend-based estimates.
See the breakdown →Which companies moved this week, and why.
One email, every Sunday. Score changes, new research, the stories behind the numbers. Free.
We'll send one email to confirm. No spam. Unsubscribe in one click.
Checking a company?
Search free →Asked to prove you're sustainable?
Get your business scored, free →Been scored?
Find your page and claim it, free →Scores are free. Nobody can pay to change a score, speed it up or hide it.