Wahaca is a 19-restaurant Mexican-inspired casual dining group founded in 2006 and headquartered in London.
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Wahaca has built a credible mid-scale sustainability programme with certified carbon neutrality since 2016, menu-wide carbon labelling, and strong waste diversion (86% recycling). But operational and supply chain emissions lack public quantification, net zero targets conflict, and there's no standalone impact report or board governance disclosure.
Wahaca scores 50/100 (Making progress) 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 Wahaca joint 149th of 847 companies scored, and 2nd of 49 in Food Service / Restaurants.
Where Wahaca sits among food service / restaurants peers.
Among the 49 major food service / restaurants brands we've scored, Wahaca sits 2nd of 49.
Its three lowest-scoring questions, and what the evidence didn't show.
No year-on-year published absolute emissions data confirm trajectory.
No public GHG inventory with specific tonnes CO2e figures from 2022 onwards disclosed.
Collaborated with Klimato to calculate lifecycle carbon for every menu item; lists carbon ratings on menu (reportedly UK-only chain per Which?
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 Energy Source (8/10, 7/10). Weakest on Emissions Trajectory and Carbon Footprint — Operations (3/10, 4/10).
The one company in the sector scoring above Wahaca.
See the full Food Service / Restaurants table →The formula and all 8 sources.
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × Scale8 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.
Wahaca is a 19-restaurant Mexican-inspired casual dining group founded in 2006 and headquartered in London. It operates across the UK with a focus on fresh, ethically sourced ingredients. The brand positions sustainability as central to its identity, with certifications in carbon neutrality and sustainable seafood sourcing.
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