Byron Burger scores 27/100 (Significant gaps) on SINK's independent climate assessment — scored from public data only, no company payment can change a number. Last verified May 2026.
That places Byron Burger joint 650th of 809 companies scored, and joint 40th of 49 in Food Service / Restaurants.
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.
Every supplier scored from public evidence like this, ranked, in 48 hours. No questionnaires, and your suppliers never know.
This score uses public evidence only. Challenge any question for free, or ask for a human review of evidence you haven't published.
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × ScaleStrongest on Controversies & Red Flags and Energy Source (7/10, 2/10). Weakest on Targets & Commitments and Transparency & Accountability (0/10, 1/10).
5 sources used in this assessment. All publicly available. Each row shows which rubric 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.
Where Byron Burger sits among food service / restaurants peers.
Among the 49 major food service / restaurants brands we've scored, Byron Burger is tied =40th of 49, with 2 others.
Score history begins 9 April 2026.
As Byron Burger's score updates, the trajectory will appear here.
This score is not currently being contested.
Every challenge is published. We'd rather be corrected than wrong — that's the whole point.
No challenges submitted yet. If you have evidence that contradicts this score, you can challenge any question above — cite a public source and we'll review it.
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.
Global fast-casual burger chain with similarly weak emissions disclosure and no published carbon reduction targets.
View breakdown →Peer burger restaurant operator with comparable supply-chain beef dependency and minimal sustainability reporting.
View breakdown →UK independent burger chain; direct competitor with equivalent scale and undisclosed environmental footprint.
View breakdown →Premium UK burger operator; similar beef-heavy menu and absence of formal emissions or supply-chain policy.
View breakdown →Email alerts when a rubric question is verified, a challenge is resolved, or the overall score changes.
One email, every Sunday. Score changes, new research, the stories behind the numbers. Free.
No spam. Unsubscribe in one click.
Checking a company?
Search free →Checking your suppliers?
Get your list scored in 48 hours →Been scored?
See what's behind your number →Nobody can pay us to change a number.