Bayer sustainability score: 31/100
Making progress starts at 46. The highest score on SINK is 71.
Bayer is a multinational pharmaceutical, agrochemical, and chemical company headquartered in Leverkusen, Germany. With 92,815 employees and €47.6B revenue (FY2023), it ranks among the world's largest life sciences corporations, operating across crop science, pharmaceuticals, consumer health, and industrial chemicals.
Founded 1863Head office Leverkusen, GermanyStaff ~100,000Revenue €47.6B (FY2023)Website ↗
Bayer reports comprehensive climate data with 21.9% Scope 1&2 reductions and SBTi-validated targets, but faces systematic controversies: 170,000+ Roundup lawsuits, $11B settlements, an OECD deforestation complaint, and glyphosate biodiversity damage. Emissions trajectory is inconsistent, Scope 3 gaps remain, and reliance on offsets undermines net-zero credibility.
Bayer scores 31/100 (Below expectations) 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 May 2026.
That places Bayer joint 698th of 1,023 companies scored, and 11th of 17 in Chemicals.
What is Bayer doing well, and where does it fall short?
Strongest on Carbon Footprint: Operations and Targets & Commitments (8/10, 7/10). Weakest on Controversies & Red Flags and Nature & Biodiversity Impact (1/10, 4/10).
Where Bayer 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
- Its record on controversiesDeal with the findings under question 10, in public.
- Its effect on natureMeasure its effect on nature and have it independently verified.
- How it uses materials and handles wasteReport measurable waste or recycling targets publicly.
Every question that lost points
- 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 falling5/10No 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 water5/10No measured water footprint with reduction targets.
- Its climate targets7/10No validated long-term net zero target.
- How openly it reports7/10No annual impact report, or no pay linked to climate targets.
- Its record on controversies1/10Points 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 Bayer's SINK score calculated?
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × ScaleWhat evidence is Bayer's score based on?
21 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.
57% of them were published by Bayer itself; the rest come from independent sources.
Scored on 4 April 2026 under an earlier version of our method. We're re-checking it under the current method.
If you believe a source has been misread or a newer version exists, submit a challenge.
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How does Bayer compare with other chemicals companies?
Where Bayer sits among chemicals peers.
Among the 17 major chemicals brands we've scored, Bayer sits 11th of 17.
Who scores higher in Chemicals?
The 3 companies in the sector scoring nearest above Bayer.
dsm-firmenich's total emissions fell to 11.0 MtCO2e in 2025, but the company says much of its progress came from the Animal Nutrition & Health business it is selling, and it publishes no figures for the rest of the group alone.
See the breakdown →Symrise's total emissions rose 38.5% in 2025 to 3.5 MtCO2e, with supply-chain emissions up 40.6% after rising 15% the year before.
See the breakdown →3M publishes assured Scope 1, 2 and 3 emissions.
See the breakdown →Which companies moved this week, and why.
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