Weir Group sustainability score: 31/100
Weir Group is a Scotland-based industrial equipment manufacturer founded in 1871, producing centrifugal pumps, mining equipment, and engineered wear solutions for global mining, oil and gas, and industrial sectors. Employs 13,750 across 50+ countries.
More about Weir Group
Aftermarket and services represent 72% of revenue.
Head office United KingdomStaff ~13,750Revenue ~£2.51BWebsite ↗
Weir discloses Scope 1 and 2 emissions under GHG Protocol with third-party limited assurance and is on track for its 2030 targets. Core weaknesses: Scope 3 emissions (99.7% of footprint) have risen 113% since 2020 despite restatement; water data collection only began in 2024 with no aggregate reporting; and biodiversity impact remains unquantified despite identified dependencies in metals supply chains.
Weir Group scores 31/100 (Below expectations) 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 August 2026.
That places Weir Group joint 658th of 934 companies scored, and joint 12th of 15 in Industrial Equipment / Machinery.
What is Weir Group doing well, and where does it fall short?
Strongest on Carbon Footprint: Operations and Controversies & Red Flags (8/10, 8/10). Weakest on Water Impact and Emissions Trajectory (3/10, 4/10).
Where Weir Group lost points
For each question that lost points, the evidence our public rubric looks for that we didn't find.
- Emissions from its own operations8/10No verified figures published with their method and a falling trend.
- Emissions from its supply chain6/10No full value-chain map or supplier engagement programme.
- Whether its emissions are falling4/10No evidence of a year-on-year fall in its total emissions.
- How clean its energy is5/10Less than half its energy shown to be renewable, or no transition plan.
- Its effect on nature4/10Its effect on nature isn't measured or independently verified.
- How it uses materials and handles waste4/10No measurable waste or recycling targets reported publicly.
- Its effect on water3/10No monitoring of water use, or no measures to reduce it.
- Its climate targets6/10Its targets aren't validated by the Science Based Targets initiative.
- How openly it reports7/10No annual impact report, or no pay linked to climate targets.
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 Weir Group's SINK score calculated?
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × ScaleWhat evidence is Weir Group's score based on?
11 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.
45% of them were published by Weir Group itself; the rest come from independent sources.
“Our 2024 scope 1&2 GHG emissions data have been externally verified to a limited level of assurance by SLR Consulting.”
“The market-based method captures the impact of Weir's contractual arrangements to procure renewable or low-carbon energy and energy attribute certificates.”
“We performed a double materiality assessment in 2023 which considered impact, risks and opportunities in line with the EU CSRD standards.”
“Weir have not been subject to or paid any climate-related litigation claims.”
“In 2024, the total Scope 1 emissions of Weir Group were 64,880 metric tons of CO₂ equivalent (tCO₂e).”
“Scope 3 emissions, totalling about 50,005,214,000 kg CO2e, primarily from the use of sold products, which accounted for approximately 49,303,391,000 kg CO2e.”
“We plan to deliver against division-specific zero waste targets.”
“During 2024, we provided both strategic and governance oversight of our sustainability strategy.”
“Continuing operations excludes the Oil & Gas Division, which was sold to Caterpillar Inc. in February 2021.”
“Reduce absolute scope 1 & 2 GHG emissions by 30% by 2030 from a 2019 base year.”
“our near-term 2030 carbon targets are SBTi approved and we are making good progress on reducing emissions from our own operations (scope 1&2).”
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How does Weir Group compare with other industrial equipment / machinery companies?
Where Weir Group sits among industrial equipment / machinery peers.
Among the 15 major industrial equipment / machinery brands we've scored, Weir Group is tied =12th of 15, with 2 others.
Who scores higher in Industrial Equipment / Machinery?
The 3 companies in the sector scoring nearest above Weir Group.
Aggreko discloses multi-year emissions data and renewable electricity at 63% of its facilities, but its Scope 3 target is intensity-based, and Scope 3 (13.1M tCO₂e a year, mostly fuel burned in its rented generators) is far larger than its own operations.
See the breakdown →Danfoss has cut its own emissions 51% since 2019, but its total footprint is 110 MtCO2e, almost all from its products in use.
See the breakdown →Which companies moved this week, and why.
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