Birketts sustainability score: 57/100
Birketts is a UK law firm headquartered in Ipswich; all its turnover is legal services, 94% of it in the UK. Birketts LLP was incorporated in 2006.
More about Birketts
It had 1,094 employees and 138 members, and £138.6 million turnover, in its year to March 2026.
Founded 2006Head office Ipswich, UKStaff ~1,094 employees + 138 members (FY to Mar 2026)Revenue ~£138.6M turnover (FY to Mar 2026)Website ↗
Birketts's footprint was 4,632 tCO2e in its 2024/25 year, 16% below its 2023/24 baseline, though its direct emissions rose and its carbon plan and its accounts give different figures for them. It buys renewable electricity without saying how, and its fleet and heating still use fossil fuels. It says its net-zero-by-2050 target will follow the SBTi standard but is still setting it, and it publishes no water or waste figures.
Birketts scores 57/100 (Making progress) 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 November 2026.
That places Birketts joint 33rd of 934 companies scored, and joint 6th of 29 in Consulting / Professional Services.
What is Birketts doing well, and where does it fall short?
Strongest on Controversies & Red Flags and Carbon Footprint: Operations (8/10, 6/10). Weakest on Nature & Biodiversity Impact and Resource Use & Waste (4/10, 4/10).
Where Birketts lost points
For each question that lost points, the evidence our public rubric looks for that we didn't find.
- Emissions from its own operations6/10Its own emissions aren't independently verified or tracked over several years.
- Emissions from its supply chain6/10No full value-chain map or supplier engagement programme.
- Whether its emissions are falling5/10No evidence of a year-on-year fall in its total emissions.
- How clean its energy is6/10Less than 90% of its energy shown to be renewable.
- Its effect on nature4/10Its effect on nature isn't measured or independently verified.
- How it uses materials and handles waste4/10No measurable waste or recycling targets reported publicly.
- Its effect on water4/10No measured water footprint with reduction targets.
- Its climate targets4/10Its targets aren't science-based or committed to the Science Based Targets initiative.
- How openly it reports6/10No annual impact report, or no pay linked to climate targets.
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 Birketts's SINK score calculated?
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × ScaleWhat evidence is Birketts's score based on?
13 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.
38% of them were published by Birketts itself; the rest come from independent sources.
8 of 13 sources are independent of the company.
“All carbon emission calculations have been carried out according to the GHG Protocol using the operational control approach.”
“Like many firms, our largest emissions come from our supply chain.”
“Sector Service with Minor Environmental Footprint”
“ISO standards for quality, environmental management, information security, and business continuity”
“Minimising our environmental impact and supporting the transition to a more sustainable future”
“Birketts reached an impressive B Impact score of 99.5”
“legally embedding their commitment to purpose as well as profit in their company articles”
“April 2023 to March 2024 is Birketts first year quantifying a full inventory of scope 1,2 and 3”
“decarbonisation of oil and gas”
“first Bristol new build office to deliver net zero carbon”
“EQ Bristol’s commitment to net-zero carbon operations reflects the firm’s sustainability goals, including reducing carbon emissions.”
“EQ is the first new build office in Bristol which has committed to deliver net zero carbon in operation.”
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How does Birketts compare with other consulting / professional services companies?
Where Birketts sits among consulting / professional services peers.
Among the 29 major consulting / professional services brands we've scored, Birketts is tied =6th of 29, with 2 others.
Who scores higher in Consulting / Professional Services?
The 3 companies in the sector scoring nearest above Birketts.
Slaughter and May has set science-backed net-zero targets and reports third-party verified emissions, but reported total emissions rose 48% year-on-year due to methodology changes and refurbishment.
See the breakdown →Amesto is a Nordic accounting, software and professional services firm with small operational emissions.
See the breakdown →Experian has reduced operational emissions 82% since 2019 and holds SBTi-validated targets, but Scope 3 emissions are rising despite methodology improvements.
See the breakdown →Which companies moved this week, and why.
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