Kier sustainability score: 56/100
Kier Group is a UK-listed civil engineering and construction contractor operating in infrastructure, building, and property. Founded 1992, headquartered in Sandy, it employs ~10,452 people and generated £4.35bn group revenue (FY26).
More about Kier
Major work spans flood defence, highways, water, hospitals, and utilities.
Founded 1992Head office United KingdomStaff ~10,452 (2026)Revenue £4,352.5M group revenue (FY ended 30 Jun 2026; £4,393.0M including share of joint ventures)Website ↗
Kier has cut operational emissions 81% since FY19 through HVO switching and electrification pledges, and holds SBTi-validated net-zero targets. Supply chain emissions dominate at 648k tCO2e (Scope 3), with no absolute waste or water tonnage disclosed. Nature impact remains project-level without group-wide quantification or independent verification.
Kier scores 56/100 (Making progress) on SINK's independent climate assessment, scored from public data only. Scores are free. Companies can never pay for anything about their own score. Last verified November 2026.
That places Kier joint 39th of 947 companies scored, and 2nd of 30 in Construction / Real Estate.
What is Kier doing well, and where does it fall short?
Strongest on Carbon Footprint: Operations and Carbon Footprint: Supply Chain (9/10, 8/10). Weakest on Nature & Biodiversity Impact and Resource Use & Waste (5/10, 5/10).
Where Kier lost points
For each question that lost points, the evidence our public rubric looks for that we didn't find.
- Emissions from its own operations9/10No verified figures published with their method and a falling trend.
- Emissions from its supply chain8/10Its Scope 3 emissions aren't fully verified or falling year on year.
- Whether its emissions are falling7/10No consistent fall over several years across its operations and supply chain.
- How clean its energy is6/10Less than 90% of its energy shown to be renewable.
- 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 water5/10No measured water footprint with reduction targets.
- Its climate targets8/10No validated long-term net zero target.
- How openly it reports8/10No mission-locked structure, such as B Corp certification.
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 Kier's SINK score calculated?
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × ScaleWhat evidence is Kier's score based on?
18 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.
39% of them were published by Kier itself; the rest come from independent sources.
11 of 18 sources are independent of the company.
“Scope 1 tCO 2 e 17,571 26,873 28,853 38,643 89,490”
“Purchased goods and services - 838,152 790,384* 697,937* 592,492*”
“Reasonable assurance to ISO 14064-1 standards for FY25 carbon data (scopes 1-3)”
“retained our A score in the Supplier Engagement Assessment (SEA)”
“Through licensed mitigation, habitat creation and ongoing monitoring, we are helping safeguard local populations while delivering essential infrastructure.”
“Nature restoration – we will work to protect and enhance biodiversity by managing nature risks and enhancing green spaces.”
“we were able to reuse circa 194,000 tonnes of materials on site”
“Kier, a U.K.-based construction and engineering firm, announced Nov. 19 the appointment of Sunbelt Rentals as its official supplier of hydrotreated vegetable oil (HVO) fuel for its operations.”
“The new joiners include UK-based companies M Group Services and Kier”
“Kier has committed to electrifying its fleet of 3,730 vehicles”
“Kier was fined £100,000 with £30,301 costs for causing groundwater activity under regulation 38 (1) (a) of the Environmental Permitting (England and Wales) Regulations 2010.”
“Kier validated our targets in 2024, achieving net zero for scope 1 and 2 by 2039 and scope 3 by 2045.”
“The Science Based Targets Initiative (SBTi) has validated the near-term, long-term, and net zero targets of Kier Transportation, Highways.”
“Kier Transportation, Highways validated targets include achieving net zero scope 1 & 2 emissions by 2039 and net zero scope 3 emissions by 2045.”
“Kier also achieved a CDP A rating this year — the highest available — for climate and supplier engagement”
“Kier is ranked first in the Construction & Building Materials sector across Europe”
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How does Kier compare with other construction / real estate companies?
Where Kier sits among construction / real estate peers.
Among the 30 major construction / real estate brands we've scored, Kier sits 2nd of 30.
Who scores higher in Construction / Real Estate?
The one company in the sector scoring above Kier.
See the full Construction / Real Estate table →Which companies moved this week, and why.
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