Marriott International sustainability score: 34/100
Marriott International operates 9,000+ hotel properties globally across multiple brands, making it the world's largest hospitality company by portfolio. Headquartered in Bethesda, Maryland, it generates approximately $20.8 billion in annual revenue and franchises the majority of its portfolio rather than owning properties directly.
Founded 1993Head office Bethesda, Maryland, USStaff ~418,000Revenue ~$23.7BWebsite ↗
Marriott has SBTi-validated net-zero targets but is actively missing annual reduction milestones. Absolute emissions are rising, renewable energy penetration is stuck at 3.4% against a 30% goal, and Scope 3 supply chain coverage remains partial. Limited assurance on reported data and credible worker-impact criticism undermine claims.
Marriott International scores 34/100 (Below expectations) 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 May 2026.
That places Marriott International joint 565th of 934 companies scored, and 15th of 16 in Hospitality / Hotels.
What is Marriott International doing well, and where does it fall short?
Strongest on Carbon Footprint: Operations and Targets & Commitments (7/10, 7/10). Weakest on Emissions Trajectory and Energy Source (3/10, 3/10).
Where Marriott International 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 chain5/10Most of its supply-chain (Scope 3) emissions aren't measured.
- Whether its emissions are falling3/10No 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 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 water4/10No measured water footprint with reduction targets.
- Its climate targets7/10Its targets aren't validated by the Science Based Targets initiative.
- How openly it reports6/10No annual impact report, or no pay linked to climate targets.
- Its record on controversies6/10Points 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 Marriott International's SINK score calculated?
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × ScaleWhat evidence is Marriott International's score based on?
15 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.
47% of them were published by Marriott International itself; the rest come from independent sources.
Scored on 7 June 2026 under an earlier version of our method. We're re-checking it under the current method.
8 of 15 sources are independent of the company.
If you believe a source has been misread or a newer version exists, submit a challenge.
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How does Marriott International compare with other hospitality / hotels companies?
Where Marriott International sits among hospitality / hotels peers.
Among the 16 major hospitality / hotels brands we've scored, Marriott International sits 15th of 16.
Who scores higher in Hospitality / Hotels?
The 3 companies in the sector scoring nearest above Marriott International.
IHG's absolute emissions have risen 7.7% since 2019 despite intensity improvements, putting it severely off track for its SBTi-validated 2030 target.
See the breakdown →PureGym reports basic Scope 1&2 emissions but ignores major Scope 3 categories, masking true supply chain impact.
See the breakdown →Exclusive Collection's own emissions fell from 2,322 to 1,207 tCO2e in two years on a market basis, helped by a certificate-backed green electricity tariff, but gas is still about 38% of its energy and it does not count the food and drink it buys.
See the breakdown →Which companies moved this week, and why.
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