IBM is a diversified information technology company headquartered in Armonk, New York, operating across cloud computing, enterprise software, quantum computing, and professional services.
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IBM has cut operational emissions 68.5% since 2010 and sources 79.6% renewable electricity, meeting near-term targets early. But Scope 3 reporting is absent—a critical gap for a hardware and services company at this scale—and IBM actively lobbies against climate policy through the US Chamber of Commerce and NAM while serving fossil fuel clients.
International Business Machines Corporation scores 56/100 (Making progress) 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 International Business Machines Corporation joint 34th of 847 companies scored, and joint 6th of 16 in Consulting / Professional Services.
Where International Business Machines Corporation sits among consulting / professional services peers.
Among the 16 major consulting / professional services brands we've scored, International Business Machines Corporation is tied =6th of 16, with 1 other.
Its three lowest-scoring questions, and what the evidence didn't show.
IBM reports only 4 of 15 Scope 3 categories.
No TNFD disclosure, no quantified nature footprint, no deforestation-free commitment for hardware supply chains.
Total withdrawal volumes not prominently disclosed; no specific quantified reduction targets provided.
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 Carbon Footprint — Operations and Emissions Trajectory (8/10, 7/10). Weakest on Carbon Footprint — Supply Chain and Nature & Biodiversity Impact (4/10, 4/10).
The 3 companies in the sector scoring nearest above International Business Machines Corporation.
Slaughter and May has set science-backed net-zero targets and reports third-party verified emissions, but reported total emissions rose 48% year-on-year due to methodology changes and refurbishment.
See the breakdown →EY has cut absolute emissions 40% since FY19 despite growing 41% in revenue, reaching 88% renewable electricity.
See the breakdown →Experian has reduced operational emissions 82% since 2019 and holds SBTi-validated targets, but Scope 3 emissions are rising despite methodology improvements.
See the breakdown →International Business Machines Corporation's score has been reviewed 2 times and currently stands where it started, at 56.
Session 2a cleanup: recomputed performance from sum(questions[].score). performance 56→57, score 56→56.
Initial score at platform launch
The formula and all 11 sources.
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × Scale11 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.
If you believe a source has been misread or a newer version exists, submit a challenge.
IBM is a diversified information technology company headquartered in Armonk, New York, operating across cloud computing, enterprise software, quantum computing, and professional services. With 352,600 employees and $62.8 billion in annual revenue, it ranks among the world's largest IT and consulting firms.
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