Rubies in the Rubble sustainability score: 44/100
Rubies in the Rubble is a UK-based B Corp condiment company that transforms surplus and imperfect produce into ketchups, mayos and other condiments. Founded around 2011, it partners with farms in Portugal and the UK, outsourcing manufacturing to avoid owned production.
More about Rubies in the Rubble
The company positions itself around food waste diversion and plant-based alternatives, selling primarily through retail (Ocado, Waitrose) and foodservice channels.
Founded 2010Head office London, United KingdomStaff ~13Revenue ~£2-4M (estimated)Website ↗
Rubies in the Rubble is a 13-person food waste condiment maker with a genuinely circular business model but almost no quantified environmental data. It publishes lifecycle assessments and food waste diversion claims without formal emissions accounting. Growth (146% YoY) means absolute emissions are rising. B Corp certification at 95.8 shows governance; weak spots are missing carbon targets, unverified renewable energy strategy, and no Scope 1, 2, or 3 quantification.
Rubies in the Rubble scores 44/100 (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 Rubies in the Rubble joint 306th of 934 companies scored, and joint 18th of 51 in Food & Beverage (non-meat).
What is Rubies in the Rubble doing well, and where does it fall short?
Strongest on Controversies & Red Flags and Resource Use & Waste (8/10, 6/10). Weakest on Energy Source and Carbon Footprint: Operations (2/10, 3/10).
Where Rubies in the Rubble lost points
For each question that lost points, the evidence our public rubric looks for that we didn't find.
- Emissions from its own operations3/10No emissions figures for its own operations, not even an estimate from energy bills.
- Emissions from its supply chain4/10Most 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 is2/10No renewable energy tariff or major efficiency investment shown.
- Its effect on nature5/10Its effect on nature isn't measured or independently verified.
- How it uses materials and handles waste6/10No verified figures for reuse and recycling across the business.
- Its effect on water3/10No monitoring of water use, or no measures to reduce it.
- Its climate targets3/10No specific targets with dates.
- How openly it reports5/10No dedicated sustainability role, board oversight or public report.
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 Rubies in the Rubble's SINK score calculated?
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × ScaleWhat evidence is Rubies in the Rubble's score based on?
10 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.
50% of them were published by Rubies in the Rubble itself; the rest come from independent sources.
Scored on 5 April 2026 under an earlier version of our method. We're re-checking it under the current method.
If you believe a source has been misread or a newer version exists, submit a challenge.
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How does Rubies in the Rubble compare with other food & beverage (non-meat) companies?
Where Rubies in the Rubble sits among food & beverage (non-meat) peers.
Among the 51 major food & beverage (non-meat) brands we've scored, Rubies in the Rubble is tied =18th of 51, with 7 others.
Who scores higher in Food & Beverage (non-meat)?
The 3 companies in the sector scoring nearest above Rubies in the Rubble.
Carlsberg reports thorough, assured emissions data, but its reported total rose 9% in 2025 to 9.0 MtCO2e after the Britvic deal, and most of its renewable electricity comes from unbundled certificates.
See the breakdown →Kerry has cut its own emissions 52% since 2017 and has SBTi-validated targets for net zero by 2049, but most of the fall in its total, to 7.1 MtCO2e, came from selling its dairy business.
See the breakdown →Candy Kittens has calculated its carbon footprint via ClimatePartner but publishes no emissions figures or reduction targets.
See the breakdown →Which companies moved this week, and why.
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