Ernst & Young (EY) is a multinational professional services network providing audit, tax, advisory and consulting services. Its central coordinating entity, Ernst & Young Global Limited, is based in London, and the network's roots go back to the 1989 merger of Ernst & Whinney and Arthur Young.
With about 415,000 people and $57bn revenue in FY26, it is one of the Big Four accounting firms.
Head office London, United KingdomStaff ~300,000 (2022)Revenue 39,959,000,000 USD (FY2021)Website ↗
EY's climate disclosure is comprehensive but undercut by rising absolute emissions since FY22 and heavy reliance on offsets to claim 'carbon negative' status. Scope 3 supplier engagement trails its own target. The firm's material involvement in fossil-fuel consulting and auditing—without public acknowledgment in its sustainability narrative—is a critical integrity gap.
Ernst & Young Global Limited (EY) scores 46/100 (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 October 2026.
That places Ernst & Young Global Limited (EY) joint 256th of 934 companies scored, and 20th of 29 in Consulting / Professional Services.
Strongest on Carbon Footprint: Operations and Energy Source (8/10, 7/10). Weakest on Emissions Trajectory and Controversies & Red Flags (3/10, 3/10).
For each question that lost points, the evidence our public rubric looks for that we didn't find.
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SINK = (0.3 × Base + 0.7 × Performance) × ScaleErnst & Young Global Limited (EY)'s score has moved from 58 to 46 across 2 recorded reviews, down 12 points.
Re-scored under v2.5.19 (RE100 UK pre-v2.5 re-score, owner-approved 2026-10-25; docs/rescore-plan-2026-10.md)
Initial score at platform launch
12 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.
50% of them were published by Ernst & Young Global Limited (EY) itself; the rest come from independent sources.
6 of 12 sources are independent of the company.
“emissions have declined by 40% to 832,000 tons of carbon”
“cut greenhouse gas emissions by 52% per EY”
“by 40% to 832k tCO e.”
“will publish a TNFD-aligned report as part of our FY25 reporting”
“including virtual power purchase agreements and energy attribute certificates”
“ERNST & YOUNG GLOBAL LIMITED”
“EY said it had looked for carbon credits for an unnamed "major global natural gas producer"”
“the Big Four multinational accounting firms – Deloitte, EY, KPMG, and PwC – also continue to do “lucrative work” for fossil fuel companies.”
“there is little evidence that any of the firms are taking climate risk into account”
“The basis of Business Fast’s article is that EY omitted detailed information concerning all of its carbon offset schemes.”
“announces combined global revenues of US$57b for the fiscal year ending June 2026 (FY26)”
“EY grew its headcount worldwide by 2.2%, from 406,209 in FY 2025 to 415,182 in FY 2026.”
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Where Ernst & Young Global Limited (EY) sits among consulting / professional services peers.
Among the 29 major consulting / professional services brands we've scored, Ernst & Young Global Limited (EY) sits 20th of 29.
The 3 companies in the sector scoring nearest above Ernst & Young Global Limited (EY).
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