Dunkin' is a US-based quick-service restaurant chain founded in 1950, headquartered in Canton, Massachusetts.
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Dunkin' discloses almost no quantitative sustainability data despite operating 13,000+ restaurants globally. Emissions figures remain unpublished, supply chain carbon is entirely unquantified, and no science-based targets exist. The company resolved its foam cup controversy in 2020 but continues to rely on single-use packaging and greenwashing claims unsupported by measurable action.
Dunkin' scores 25/100 (Significant gaps) on SINK's independent climate assessment, scored from public data only. Fees pay for the review, never the result. Last verified May 2026.
That places Dunkin' joint 728th of 847 companies scored, and joint 42nd of 49 in Food Service / Restaurants.
Where Dunkin' sits among food service / restaurants peers.
Among the 49 major food service / restaurants brands we've scored, Dunkin' is tied =42nd of 49, with 2 others.
Its three lowest-scoring questions, and what the evidence didn't show.
Neither Dunkin' nor Inspire Brands has disclosed any Scope 3 emissions.
Neither Dunkin' nor Inspire Brands has SBTi commitment or validated emissions targets.
Inspire Brands tracked Scope 1 and 2 emissions for five years with 2024 validation via limited assurance.
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 Controversies & Red Flags and Nature & Biodiversity Impact (6/10, 3/10). Weakest on Carbon Footprint — Supply Chain and Targets & Commitments (1/10, 1/10).
The 3 companies in the sector scoring nearest above Dunkin'.
Pizza Hut's sustainability performance is hampered by consolidated Yum!
See the breakdown →Byron Burger publishes no emissions data, targets, or sustainability strategy despite operating a beef-heavy restaurant chain with material operational and supply-chain carbon impact.
See the breakdown →Pho Restaurants operates 45+ UK sites with zero emissions disclosure, no carbon targets, and no sustainability strategy whatsoever.
See the breakdown →The formula and all 11 sources.
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × Scale11 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.
If you believe a source has been misread or a newer version exists, submit a challenge.
Dunkin' is a US-based quick-service restaurant chain founded in 1950, headquartered in Canton, Massachusetts. Owned by Inspire Brands since 2021, it operates over 13,000 locations across 40+ countries, primarily serving coffee, donuts, and breakfast items. A major player in the global QSR sector.
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