Sky sustainability score: 38/100
Better than 46% of Media / Entertainment / Publishing
Making progress starts at 46. The highest score on SINK is 71.
Sky UK Limited is a British broadcaster, pay-TV, broadband and mobile operator headquartered in Isleworth. It was incorporated in 1994.
More about Sky
With £10.5bn revenue and ~9,900 employees, it operates across the UK and Ireland, owned by US media conglomerate Comcast. Primary sustainability exposures are operational energy (matched 100% renewable, partly through certificates), fleet emissions, hardware supply chains, and content production practices.
Founded 1994Head office Isleworth, United KingdomStaff ~9,901 (2025)Revenue £10.54bn revenue (FY2025)Website ↗
Sky UK Limited measures the emissions from its own fuel and electricity: 45,280 tonnes across the UK and Ireland in 2025, down 17% on 2024. It publishes no Scope 3 figure of its own, and in media that is usually the largest part of the footprint, so we apply a cautious size deduction. Its own science-based target was removed from the SBTi list, and the validated target it now points to belongs to its parent, Comcast, which earns Sky no credit. Its electricity is matched to renewable sources, partly through certificates, its carbon-neutral claim rests on buying offsets, and it gives no measure of its effect on nature.
Sky scores 38/100 (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 October 2026.
That places Sky joint 479th of 1,023 companies scored, and joint 15th of 29 in Media / Entertainment / Publishing.
What is Sky doing well, and where does it fall short?
Strongest on Controversies & Red Flags and Carbon Footprint: Operations (8/10, 7/10). Weakest on Targets & Commitments and Water Impact (2/10, 3/10).
Where Sky 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 climate targetsSet specific targets with dates.
- Its effect on waterMonitor its water use and take measures to reduce it.
- Its effect on natureMeasure its effect on nature and have it independently verified.
Every question that lost points
- Emissions from its own operations7/10Its own emissions aren't independently verified or tracked over several years.
- Emissions from its supply chain5/10Most of its supply-chain (Scope 3) emissions aren't measured.
- Whether its emissions are falling6/10No consistent fall over several years across its operations and supply chain.
- How clean its energy is6/10Less than 90% of its energy shown to be renewable.
- Its effect on nature4/10Its effect on nature isn't measured or independently verified.
- How it uses materials and handles waste5/10No measurable waste or recycling targets reported publicly.
- Its effect on water3/10No monitoring of water use, or no measures to reduce it.
- Its climate targets2/10No specific targets with dates.
- How openly it reports6/10No annual impact report, or no pay linked to climate targets.
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 Sky's SINK score calculated?
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × ScaleHas Sky's score changed?
Sky's score has moved from 64 to 38 across 3 recorded reviews, down 26 points.
- 52 → 38-1428 October 2026
entity corrected: scored as Sky UK Limited, the operating company
- 64 → 52-1225 October 2026
Re-scored under v2.5.19 (RE100 UK pre-v2.5 re-score, owner-approved 2026-10-25; docs/rescore-plan-2026-10.md)
- Scored 644 April 2026
Initial score at platform launch
What evidence is Sky's score based on?
11 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.
27% of them were published by Sky itself; the rest come from independent sources.
We score Sky UK Limited, the company that runs Sky in the UK and Ireland. It publishes emissions from its own operations but no Scope 3 figure of its own, and in media Scope 3 is usually the largest part of the footprint. The wider Sky group reports Scope 1, market-based Scope 2 and Scope 3 together of 1,584 kt CO2e in 2024 (Sky UK Limited's 2025 accounts, p.12), but that covers the whole group, not Sky UK. Without Sky UK's own full total we apply a cautious size deduction (0.70x), as we do for other companies that leave out a dominant part of their footprint.
“Emissions from combustion of gas (Scope 1) 3,560 3,560 3,511 3,511”
“This verification comes in addition to the external assurance on our scopes 1 and 2 GHG reporting.”
“We’re encouraging suppliers to set carbon reduction plans and move to renewable electricity.”
“Sky has also published the reporting methodology for its Scope 3 emissions which are responsible for 98 per cent of its total value chain emissions”
“Protecting and restoring natural habitats and biodiversity alongside our long- standing charity partners such as WWF and Royal Botanic Gardens (RBG), Kew.”
“Expired commitment; Target set at parent company level”
“Sky has received validation of its 2030 science-based emissions targets with approval from the Science Based Targets initiative (SBTi).”
“A 3MW solar panel system newly installed on the rooftops of Sky Studios Elstree will supply at least 40% of the studios’ annual energy requirements.”
“ITV Studios, Channel 4, Sky, UKTV, Netflix, Fremantle and Universal International Studios”
“Sky is now conducting live trials of the unit at its Sky Studios Elstree facility”
“Incorporated on 10 March 1994”
If you believe a source has been misread or a newer version exists, submit a challenge.
Is this your company? Claim this profile (free)
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 →Send new evidence, free
Scored low because little is published? Publish what you do and send us the link, free. If it holds up, your score changes, and the change is logged on your page.
How to send evidence →Put your score on your website, free
It shows the current band, sector rank and score, and links to this page, so it changes when the score does.
Track this score
Bidding for a public contract? Check if you need a Carbon Reduction Plan, free →
Want your own page like this?
Free, independent, every source shown. Send it to any buyer who asks about your sustainability.
How does Sky compare with other media / entertainment / publishing companies?
Where Sky sits among media / entertainment / publishing peers.
Among the 29 major media / entertainment / publishing brands we've scored, Sky is tied =15th of 29, with 1 other.
Who scores higher in Media / Entertainment / Publishing?
The 3 companies in the sector scoring nearest above Sky.
Netflix's climate footprint is growing in absolute terms despite intensity-based targets, driven by rising Scope 3 emissions from production outsourcing.
See the breakdown →Spotify's footprint rose 3.9% to 202,666 tCO2e in 2025, almost all of it in its supply chain, mainly cloud computing, marketing and other bought-in services, estimated mostly from spending.
See the breakdown →Tencent's footprint was 5.97 million tCO2e in 2025, mostly from the data centres it owns and leases; it fell 1.5% on 2024 but is still above its 2021 base, and its electricity use rose 35%.
See the breakdown →Which companies moved this week, and why.
One email, every Sunday. Score changes, new research, the stories behind the numbers. Free.
We'll send one email to confirm. No spam. Unsubscribe in one click.
Checking a company?
Search free →Asked to prove you're sustainable?
Get your business scored, free →Been scored?
Find your page and claim it, free →Scores are free. Nobody can pay to change a score, speed it up or hide it.