3i is a UK-listed private equity and infrastructure investor managing £38.7bn in assets.
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3i operates rigorous operational emissions reporting with third-party assurance, but exposes a critical gap: no absolute financed emissions disclosure for a £38.7bn PE portfolio. Portfolio progress tracked only by SBTi coverage percentage, not tonnes. Near-term climate targets exist but lack net-zero commitment. Governance is transparent; controversies absent.
3i scores 36/100 (Below expectations) on SINK's independent climate assessment, scored from public data only. Fees pay for the review, never the result. Last verified August 2026.
That places 3i joint 459th of 847 companies scored, and joint 22nd of 51 in Financial Services / Banking.
Where 3i sits among financial services / banking peers.
Among the 51 major financial services / banking brands we've scored, 3i is tied =22nd of 51, with 1 other.
Its three lowest-scoring questions, and what the evidence didn't show.
Own Scope 1+2 increased 3.2% from FY2023 to FY2025; no absolute financed emissions trajectory available.
This is preliminary awareness work, not quantified assessment or formal TNFD-aligned disclosure.
No formal circular economy targets, supplier materials requirements, or waste reporting found for 3i's own operations.
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 Controversies & Red Flags (8/10, 8/10). Weakest on Emissions Trajectory and Nature & Biodiversity Impact (3/10, 3/10).
The 3 companies in the sector scoring nearest above 3i.
Deutsche Bank reports strong operational decarbonization but relies heavily on offsets and unbundled renewable certificates rather than genuine reduction.
See the breakdown →Standard Chartered has decarbonized operations dramatically (96% reduction since 2018) and joined RE100, but this masks a critical flaw: the bank finances $32 billion in fossil fuel expansion since Paris and continues bankrolling controversial LNG projects in biodiversity hotspots.
See the breakdown →Lloyds has solid operational decarbonisation and renewable energy credentials, but its financed emissions—33 MtCO₂e annually—dwarf these gains.
See the breakdown →3i's score has been reviewed 2 times and currently stands where it started, at 36.
Direction-blind emissions retrieval (agent-fed): basis not-retrieved->scope-incomplete, scale 0.7->0.7, score 36->36. Primary: 3i Group plc Annual Report 2026 — operational GHG table (KPMG-assured).
Initial public score 36 (publish-draft)
The formula and all 10 sources.
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × Scale10 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.
Limited data coverage. This assessment is based on 9 sources, 89% of which are self-reported by the company. Scores may change as independent evidence becomes available.
“Emissions calculations are based on activity data sourced from internal metering systems and invoices issued by energy suppliers”
“our emissions slightly increased by 3.2% from FY2023 (our base year)”
“3i Group's Scope 3 emissions from purchased goods and services and capital goods totalled 2,271 tCO2e in FY2025”
“we also advanced our understanding of key nature impacts and dependencies within our portfolio through a high-level assessment using open-source tools”
“3i Group plc set near-term science-based emissions targets which were validated by the Science Based Targets initiative (SBTi) in March 2024”
“FY2025 Operational Emissions Assurance report · Operational GHG emissions reporting criteria for the year ended 31 March 2025”
“We give due consideration to the sustainability profile of portfolio companies before investing and throughout the holding period”
“By capturing methane from landfill sites and disused coal mines, Infinis fulfils an essential role in helping landfill operators meet their environmental compliance obligations”
“The Board of Directors is responsible for the oversight of the Group's sustainability strategy, approach and policies”
If you believe a source has been misread or a newer version exists, submit a challenge.
3i is a UK-listed private equity and infrastructure investor managing £38.7bn in assets. Founded in 1945 and headquartered in London, it invests in buyouts (retail, healthcare, business services) and infrastructure (renewables, biogas, grid). A 223-person office-based manager with negligible direct footprint.
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