Siemens is a German multinational industrial conglomerate founded in 1847, headquartered in Berlin with 320,000 employees.
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Siemens has delivered genuine operational emissions cuts (60% since 2019) and secured SBTi validation, but faces a critical credibility gap: it funded the Carmichael coal mine in 2020 despite global activist pressure, and holds undisclosed trade association memberships misaligned with climate. Scope 3 remains opaque and portfolio-dependent.
Siemens scores 35/100 (Below expectations) on SINK's independent climate assessment, scored from public data only. Fees pay for the review, never the result. Last verified May 2026.
That places Siemens joint 482nd of 847 companies scored, and joint 5th of 10 in Electrical Equipment / Lighting.
Where Siemens sits among electrical equipment / lighting peers.
Among the 10 major electrical equipment / lighting brands we've scored, Siemens is tied =5th of 10, with 2 others.
Its three lowest-scoring questions, and what the evidence didn't show.
No quantified nature footprint, TNFD disclosure, or verified ecosystem outcomes reported.
No specific absolute water withdrawal reduction data or verified outcomes disclosed.
Score limited to 6 because full 15-category Scope 3 breakdown lacks verified third-party assurance across all categories.
A score changes when the evidence does. We use new published evidence at the next rescore. Evidence that isn't public can count through an evidence review.
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Get in touch →Strongest on Targets & Commitments and Transparency & Accountability (8/10, 8/10). Weakest on Nature & Biodiversity Impact and Water Impact (5/10, 5/10).
The 3 companies in the sector scoring nearest above Siemens.
Johnson Controls reports comprehensive GHG data with third-party assurance and has beaten SBTi near-term targets ahead of schedule.
See the breakdown →Enphase Energy has published consistent ESG reporting aligned with major frameworks, but its decarbonisation commitments are weak.
See the breakdown →Schneider Electric has credible climate targets backed by SBTi validation and strong operational emissions reductions (51% since 2021), but Scope 3 dominates at 99% of footprint with only modest 25% reduction targets by 2030.
See the breakdown →The formula and all 13 sources.
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × Scale13 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.
7 of 13 sources are independent of the company.
If you believe a source has been misread or a newer version exists, submit a challenge.
Siemens is a German multinational industrial conglomerate founded in 1847, headquartered in Berlin with 320,000 employees. It operates across electrical engineering, automation, power systems, medical devices, and industrial software—a diversified portfolio making it a heavyweight in industrial decarbonisation but also in grey-zone supply chain and policy influence.
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