Byron Burger is a UK-based casual dining chain specializing in beef burgers, founded in 2007 and headquartered in London.
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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. The company's sole environmental claim—recyclable packaging—is unverified marketing language. Multiple insolvencies and recent ownership change signal financial distress, not environmental commitment.
Byron Burger scores 27/100 (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 Byron Burger joint 683rd of 847 companies scored, and joint 39th of 49 in Food Service / Restaurants.
Where Byron Burger sits among food service / restaurants peers.
Among the 49 major food service / restaurants brands we've scored, Byron Burger is tied =39th of 49, with 2 others.
Its three lowest-scoring questions, and what the evidence didn't show.
Byron Burger has set no climate, carbon, energy, or science-aligned targets.
Byron Burger has not published emissions data or a sustainability report.
No Scope 3 quantification, supplier audit, or deforestation policy disclosed.
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 (7/10, 2/10). Weakest on Targets & Commitments and Carbon Footprint — Operations (0/10, 1/10).
The 3 companies in the sector scoring nearest above Byron Burger.
Itsu publishes zero emissions data despite operating 80+ restaurants and a grocery manufacturing business.
See the breakdown →GBK has published no emissions data since 2021 and relies entirely on offsetting rather than reductions.
See the breakdown →Bill's Restaurants publishes zero sustainability data across operations, supply chain, energy, waste, water, and targets.
See the breakdown →The formula and all 5 sources.
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × Scale5 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.
This company's public sustainability disclosure is limited. This score is based on the 5 verified sources cited below, rather than padded to a standard count.
Limited data coverage. This assessment is based on 5 sources, 20% of which are self-reported by the company. Scores may change as independent evidence becomes available.
If you believe a source has been misread or a newer version exists, submit a challenge.
Byron Burger is a UK-based casual dining chain specializing in beef burgers, founded in 2007 and headquartered in London. Operating approximately 9–12 sites following multiple restructurings, the company sources grass-fed UK and Irish beef and operates commercial kitchens with significant energy and water use. Currently owned by Niyamo Capital as of December 2025.
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