Hiscox is a Bermuda-based specialty insurer founded in 1901, headquartered in Hamilton.
Is this your business? Add your evidence →
Hiscox discloses operational emissions with third-party verification but excludes financed/underwritten emissions—98% of its carbon footprint. Fossil fuel underwriting remains unresolved: the company has coal exclusions but no binding oil and gas phase-out, drawing criticism from Insure Our Future and Reclaim Finance. Operational targets lack SBTi validation.
Hiscox 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 August 2026.
That places Hiscox joint 482nd of 847 companies scored, and joint 9th of 14 in Insurance.
Where Hiscox sits among insurance peers.
Among the 14 major insurance brands we've scored, Hiscox is tied =9th of 14, with 1 other.
Its three lowest-scoring questions, and what the evidence didn't show.
Nature impact assessment planned for 2024; no completion or TNFD disclosure found.
Hiscox reports Scope 3 operational emissions (162,558 tCO₂e, FY2024) but covers only one of 15 GHG Protocol categories with detail.
No detailed waste data, circular economy targets, or hardware lifecycle management disclosures found.
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.
Use this score in tenders
Send the link, or the one-page score sheet. It links back to this page and every source. Free.
Open the score sheet →Add your evidence, £99
Scored low because little is published? Send us your evidence. A person reviews it and your score reflects what you really do. Done within 5 working days.
Evidence review →Go tender-ready, £495 a year
A yearly rescore, a check of up to 25 key suppliers and a score badge for your website (coming soon).
Get in touch →Strongest on Carbon Footprint — Operations and Transparency & Accountability (7/10, 6/10). Weakest on Nature & Biodiversity Impact and Carbon Footprint — Supply Chain (3/10, 4/10).
The 3 companies in the sector scoring nearest above Hiscox.
Cigna reports operational emissions largely covered by renewable certificates rather than power purchase agreements.
See the breakdown →Allianz reports comprehensively under CSRD with PwC assurance, but the company's operational emissions are rising while it claims progress via portfolio accounting changes.
See the breakdown →Admiral discloses mandatory carbon metrics but hasn't cut absolute emissions—Scope 1&2 rose 10% in 2025.
See the breakdown →Hiscox's score has moved from 47 to 35 across 2 recorded reviews, down 12 points.
v2.5.7 financed-emissions rule applied retroactively (record last scored before the rule): scale 0.95 -> 0.7, score 47 -> 35. No question marks changed.
Initial public score 47 (publish-draft)
The formula and all 9 sources.
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × Scale9 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.
“Our Scope 1-3 emissions (excluding investments) are independently verified to a reasonable assurance level.”
“In 2024, the total operational greenhouse gas (GHG) emissions of Hiscox amounted to 1,910 metric tons of CO2 equivalent.”
“In 2024 we added wording into our leases that supports our requirements to decarbonise our offices, this is termed as 'Green Leasing'.”
“The previous year, 2023, saw total emissions of approximately 25,914,000 kg CO2e, indicating a reduction in emissions year-on-year.”
“in that time, we have helped improve its performance from a C to a B score in 2022.”
“We participate in a number of key ESG indices including CDP, FTSE4Good and the Dow Jones Sustainability Index.”
“Hiscox Syndicates, as they have a commitment to stop underwriting risks related to new coal mines or new coal plants, but no commitment to stop underwriting risks related to new oil”
“Hiscox's ESG 3033 sub-syndicate claims that it provides 'insurance capacity exclusively awarded to businesses delivering exceptional ESG performance'”
“AIG, Tokio Marine and big Lloyd's insurers like Hiscox now need to move next.”
If you believe a source has been misread or a newer version exists, submit a challenge.
Hiscox is a Bermuda-based specialty insurer founded in 1901, headquartered in Hamilton. The group operates as a Lloyd's of London market participant, underwriting commercial and personal insurance across property, casualty, marine, and professional lines globally, with a significant digital distribution footprint.
One email, every Sunday. Score changes, new research, the stories behind the numbers. Free.
No spam. Unsubscribe in one click.
Checking a company?
Search free →Asked to prove you're sustainable?
Get your business scored, free →Been scored?
See what's behind your number →Fees pay for the review, never the result.