CoreWeave sustainability score: 29/100
CoreWeave sells cloud infrastructure for artificial intelligence, with customers buying computing capacity on its platform, generally through multi-year committed contracts. It operated 43 data centres at the end of 2025.
More about CoreWeave
CoreWeave, Inc. was formed as a Delaware limited liability company in 2017 and converted to a corporation in 2018. It had 2,189 employees at 31 December 2025 and ~US$5.1B revenue in 2025.
Founded 2017Head office Livingston, United StatesStaff ~2,189 (year-end, 31 December 2025)Revenue ~US$5.1B (2025)Website ↗
CoreWeave reported 1,038 t of Scope 1 and 522,845 t of market-based Scope 2 for 2025, its only published year, so there is no reported trend. Active power rose from about 360 MW to over 850 MW in 2025. It publishes no Scope 3 figure, including for the servers and construction it buys (categories 1 and 2), so the size deduction for an incomplete footprint (0.70x) applies. It publishes no overall renewable share; its verifier reviewed certificates but gives no volumes. No dated emissions, renewable or water target was found. Residents have protested over its Kenilworth, New Jersey site, with no regulatory finding or fine found.
CoreWeave scores 29/100 (Significant gaps) on SINK's independent climate assessment, scored from public data only. Scores are free. Companies can never pay for anything about their own score. Last verified November 2026.
That places CoreWeave joint 743rd of 994 companies scored, and joint 52nd of 69 in SaaS / Digital Services.
What is CoreWeave doing well, and where does it fall short?
Strongest on Carbon Footprint: Operations and Controversies & Red Flags (7/10, 7/10). Weakest on Emissions Trajectory and Carbon Footprint: Supply Chain (0/10, 1/10).
Where CoreWeave lost points
For each question that lost points, the evidence our public rubric looks for that we didn't find.
- Emissions from its own operations7/10Its own emissions aren't independently verified or tracked over several years.
- Emissions from its supply chain1/10No assessment of where its supply-chain emissions come from.
- Whether its emissions are falling0/10No evidence its emissions are falling, not even from energy bills or mileage.
- How clean its energy is3/10No renewable energy tariff or major efficiency investment shown.
- Its effect on nature1/10No evidence it knows its main risks to nature.
- How it uses materials and handles waste2/10No active waste reduction, reuse or repair shown.
- Its effect on water2/10No monitoring of water use, or no measures to reduce it.
- Its climate targets2/10No specific targets with dates.
- How openly it reports4/10No dedicated sustainability role, board oversight or public report.
- Its record on controversies7/10Points deducted for controversies or its business model. The finding is under question 10.
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 CoreWeave's SINK score calculated?
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × ScaleWhat evidence is CoreWeave's score based on?
16 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.
19% of them were published by CoreWeave itself; the rest come from independent sources.
Scope 2, 2025: market-based 522,845 t, location-based 476,119 t. The score uses market-based.
13 of 16 sources are independent of the company.
“Scope 2 (Market-Based): 522,845 metric tons of CO2 equivalent”
“A large portion of our GHG emissions are currently Scope 2 emissions”
“particularly Scope 3 value chain emissions”
“permits, prevent waste, manage hazardous materials, and disclose greenhouse gas emissions data,”
“This minimizes water draw from local environments”
“has their own power source on the property”
“voicing concerns about rising electric bills and the environmental impacts”
“Many residents are opposed to a new data center opening in a small community in New Jersey.”
“There is growing opposition to an artificial intelligence data center”
“Multiple towns are banning projects over noise, power, water concerns”
“There are concerns around electricity usage, environmental impact, and noise”
“many residents surrounding the sites are concerned about noise, air, and water pollution”
“CoreWeave has not, to date, publicized information about its PPAs or renewable energy strategy.”
“Both campuses will be powered by renewable energy sources.”
“The fuel cells are set to be commissioned in Q3 2025”
“Implement strategies to maximize reuse and resale of electronic equipment”
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How does CoreWeave compare with other saas / digital services companies?
Where CoreWeave sits among saas / digital services peers.
Among the 69 major saas / digital services brands we've scored, CoreWeave is tied =52nd of 69, with 2 others.
Who scores higher in SaaS / Digital Services?
The 3 companies in the sector scoring nearest above CoreWeave.
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