Consulting / Professional Services

Bioregional Development sustainability score: 56/100

56/100

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About Bioregional Development

Bioregional is a London-based sustainability consultancy and registered charity founded in 1994, with 31 employees and £2.5m annual revenue. It develops frameworks and tools for environmental planning, retrofit, and one-planet living, working with housing bodies, local authorities, and businesses across the UK.

Founded 1994Head office London, United KingdomStaff 31 (FY2026, average headcount; 28.6 FTE)Revenue 2,528,664 GBP (FY2026)Website ↗

Our verdict

Bioregional has cut its Scope 1 and 2 emissions by 89% since 2018/19, but Scope 3, about 99% of its 139.7 tCO2e footprint and estimated mainly from spending, fell only 9.6%, largely by cutting travel. Progress on its goal for key suppliers to set science-based targets is not reported, and no nature baseline or current water data was found. Its small office footprint limits direct impact, and a documented performance gap at its flagship BedZED project weighs on its credibility.

Bioregional Development scores 56/100 (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 October 2026.

That places Bioregional Development joint 39th of 934 companies scored, and joint 9th of 29 in Consulting / Professional Services.

The ten questions

What is Bioregional Development doing well, and where does it fall short?

Strongest on Targets & Commitments and Transparency & Accountability (7/10, 7/10). Weakest on Energy Source and Emissions Trajectory (3/10, 4/10).

What's missing

Where Bioregional Development 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 falling4/10No evidence of a year-on-year fall in its total emissions.
  • How clean its energy is3/10No renewable energy tariff or major efficiency investment shown.
  • 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 targets7/10Its targets aren't validated by the Science Based Targets initiative.
  • How openly it reports7/10No annual impact report, or no pay linked to climate targets.
  • Its record on controversies7/10Points deducted for controversies or its business model. The finding is under question 10.

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.

The calculation

How is Bioregional Development's SINK score calculated?

Same ten questions for every company. No private weighting.

SINK = (0.3 × Base + 0.7 × Performance) × Scale
Industry base impact
Consulting / Professional Services sector ceiling.
65 / 100
Performance score
Sum of the ten questions, each scored 0 to 10.
52 / 100
Raw score
Weighted average before scale penalty.
(0.3 × 65) + (0.7 × 52) = 55.9
Scale penalty
Multiplier based on total emissions. Bigger polluters lose more.
× 1
Final score
Rounded. Making progress.
56 / 100
How this score has moved

Has Bioregional Development's score changed?

Bioregional Development's score has moved from 57 to 56 across 2 recorded reviews, down 1 point.

0255075100579 April 20265616 October 2026
  1. 57 → 56-116 October 2026

    correction: re-sourced 2026-10-16 (live records failing current gates, zero coverage). Re-scored under current rules from the filed accounts (OCR-verified) and independent coverage; Scope 3 completeness exception documented. (Owner exception: Scope 3 completeness guard skipped — filed accounts state the 139.7 t total is ~99% Scope 3.)

  2. Scored 579 April 2026

    Initial score at platform launch

Where the evidence comes from

What evidence is Bioregional Development's score based on?

11 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.

18% of them were published by Bioregional Development itself; the rest come from independent sources.

[1]Public record
Bioregional Development Group — Trustees' Report and Accounts (31 March 2026)

“Scope 1 and 2 emissions fell by 89% since our 2018/19 baseline”

2026
Q1Q2Q3Q4Q6Q8Q9
View →
[2]Self-reported
Bioregional One Planet Living Action Plan 2022/23

“In 2018/19 our carbon footprint (including scopes 1, 2, and 3) was 137 tCO2e.”

2023
Q1Q3Q4Q5Q6Q7
View →
[3]Public record
Bioregional Development Group — Companies House Filing History

“Group of companies' accounts made up to 31 March 2026”

Ongoing
Q1Q9
View →
[4]Independent source
Bioregional's Targets to Cut Greenhouse Emissions — Science Based Targets Initiative

“require 50% of our key suppliers (measured by procurement emissions) to have science-based targets by 2025”

Unknown
Q2Q8
View →
[5]Self-reported
Bioregional 2025-26 Impact Review

“80.6 tCO2e in 2023-24, a decrease of 50% from our 2018/19 baseline”

2025
Q3Q6
View →
[6]Public record
Bioregional — Charity Commission Register

“Environment/conservation/heritage”

Ongoing
Q5Q9
View →
[7]Third-party verified
Science Based Targets Initiative — Companies Dataset

“Bioregional Development Group commits to reduce scope 1 and scope 2 GHG emissions 50% by 2030 from a 2018 base year”

Unknown
Q8
View →
[8]Public record
Bedding Sustainability into British Buildings: BedZED Performance Gap

“It faced problems such as overheating and having to switch from CHP to gas which undermined its sustainability targets.”

2024
Q10
View →
[9]Public record
What's Life Like Inside the UK's First Zero-Carbon Eco-Village

“BedZED eco-village is the real deal - no greenwashing to be seen or heard here.”

2020
Q10
View →
[10]Public record
Innovation in the Spotlight: William Sutton Prize Winners Announced

“Retrofit Automation Tool by Bioregional aims to accelerate retrofit planning by turning complex, messy datasets into clear decarbonisation pathways”

2025
Q10
View →
[11]Public record
Clarion Reveals Winners of Sixth William Sutton Prize

“Completing the list was a retrofit automation tool by Bioregional, which aims to simplify the retrofitting planning process.”

2025
Q10
View →

If you believe a source has been misread or a newer version exists, submit a challenge.

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    Bioregional Development: SINK sustainability score 56/100.

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Bioregional Development in context

How does Bioregional Development compare with other consulting / professional services companies?

Where Bioregional Development sits among consulting / professional services peers.

Among the 29 major consulting / professional services brands we've scored, Bioregional Development is tied =9th of 29, with 3 others.

=9/29
Bioregional Development's rank
49
Industry average
22
Industry low
62
Industry high
See all 29 in Consulting / Professional Services →
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