Carbon Footprint — Operations: How does Brompton Bicycle score?

DitchCarbon reports FY2024 Scope 1 emissions of approximately 439 tonnes CO2e and Scope 2 of approximately 405 tonnes CO2e, derived from Brompton's published sustainability report data. Total operational emissions are approximately 844 tonnes CO2e. Brompton publishes sustainability reports annually (2024 and 2025 editions listed on brompton.com/sustainability) and the company states it collects environmental and manufacturing data from every part of its business. The methodology appears GHG Prot

Carbon Footprint — Supply Chain: How does Brompton Bicycle score?

Brompton reports Scope 3 emissions of approximately 18,259 tonnes CO2e for FY2024 (DitchCarbon), indicating that supply chain emissions have been quantified and dominate the total footprint (~97%). The company has an Ethical Trade Programme that audits suppliers and requires compliance with environmental standards including reducing packaging and seeking renewable energy. It has also partnered with Hydro to source recycled aluminium. However, the Scope 3 target is intensity-based (per bicycle so

Emissions Trajectory: How does Brompton Bicycle score?

Brompton's Bicycle Retailer coverage of the FY2024 annual report notes that average carbon emissions per bike increased in FY2024 due to more e-bikes sold and increased air freight use in product development. This confirms that per-bike intensity worsened and absolute emissions data is not confirmed to be declining. The near-term SBTi-aligned Scope 1+2 target is absolute (55% reduction by FY2032 from FY2023 baseline), which is positive, but the Scope 3 target is intensity-based (per bicycle sold

Energy Source: How does Brompton Bicycle score?

Modern Retail (October 2024) reports that Brompton's London factory uses 96% renewable energy, per Brompton's own North America president. The supplier code of conduct on brompton.com also asks suppliers to seek renewable energy contracts or on-site renewable generation where possible. No RE100 membership or PPA confirmation was found, and the 96% figure is sourced from a company spokesperson without confirmed independent verification. This is consistent with a high-renewable tariff or bundled g

Nature & Biodiversity Impact: How does Brompton Bicycle score?

Brompton's new Ashford factory, approved in January 2025, has attracted criticism from Kent Wildlife Trust, which described the approval as 'a dark day for nature', arguing the South Willesborough Dykes Local Wildlife Site — home to dormice, great-crested newts, seven bat species, 32 breeding bird species, and 92 aquatic invertebrate species — faces 'severe and irreversible harm'. Brompton proposes to build on stilts with a new wetland habitat underneath and 60 acres rewilded as public nature re

Resource Use & Waste: How does Brompton Bicycle score?

Brompton reports cutting factory waste in half over five years. In FY2023, it recycled 62% of waste at Greenford, reduced metal scrap rate, and operates a powder-coating process that reuses paint between frames. The company introduced returnable packaging with several suppliers and is redesigning its bike box to eliminate plastic inserts used from 2023. It partnered with Hydro for recycled aluminium supply. The 7-year frame warranty and design for repairability (over 1,200 parts, all available)

Water Impact: How does Brompton Bicycle score?

Brompton acknowledges its manufacturing process (brazing and painting steel tubes) is water-intensive, and has invested in a new water recycling washing system that the company states 'continuously recovers and re-uses wash water', reducing usage and pollution. A centrifugal effluent treatment system at the factory reportedly saves up to 90% of water and compound consumption compared to previous methods. However, no quantified water consumption data (in m³ or litres), reduction targets, or third

Targets & Commitments: How does Brompton Bicycle score?

Brompton has near-term targets aligned with SBTi: 55% absolute reduction in Scope 1+2 by FY2032 (FY2023 baseline) and 58.14% reduction in Scope 3 emissions per bicycle sold by FY2032. Long-term targets include 90% absolute Scope 1+2 reduction and 97% Scope 3 per-bicycle reduction by FY2050, net-zero by FY2050. DitchCarbon describes these as SBTi-aligned but no confirmed 'Targets Set' validation status (as opposed to 'Committed') was found in available sources — the SBTi dashboard was not directl

Transparency & Accountability: How does Brompton Bicycle score?

Brompton publishes annual sustainability reports (2024 and 2025 editions confirmed on website), is B Corp certified (certified July 2023, score 85.1 against 80 threshold), has made legal changes to its governance requiring it to balance people, planet and profit, and has an Ethical Trade Programme with supplier auditing. The CEO publicly discusses sustainability performance, including acknowledging limitations (e.g. stated the new factory 'will not be net-zero'). B Corp certification provides th

Controversies & Red Flags: How does Brompton Bicycle score?

Starting at 8. The Kent Wildlife Trust criticism of the Ashford factory approval (January 2025) is a credible, unresolved NGO concern involving a designated Local Wildlife Site, backed by an Environment Agency objection on flood and habitat grounds. This is not a regulatory fine or upheld action but is a credible, active nature controversy at the time of scoring. Deduct 1 for this unresolved credible conservation concern. No greenwashing allegations, regulatory climate fines, lobbying controvers

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Brompton Bicycle Sustainability Score: 52/100

◌ Pending Review

🚲 Electronics / HardwareGBMaking progress

~800 employees~£123M (~$153M) revenue19Kt CO₂e totalRanked #59 of 503Website ↗

Brompton Bicycle is a electronics / hardware company headquartered in GB with total reported emissions of 19Kt CO₂e per year. Based on our 10-question rubric, Brompton Bicycle scores 52/100 — rated as making progress on sustainability but with room to improve.

SINK Score Breakdown

How we calculated Brompton Bicycle's score using our formula: (0.3 × Base + 0.7 × Performance) × Scale Penalty

Base Impact

Electronics / Hardware industry ceiling

Performance

57/100

10 questions scored below

Scale Penalty

emissions volume multiplier

SINK Score

(0.3 × 40 + 0.7 × 57) × 1 = 52

Emissions Breakdown

Scope 1

439t

Direct emissions

Scope 2

405t

Energy (purchased)

Scope 3

18Kt

Value chain

Total

19Kt

CO₂e per year

10-Question Rubric Breakdown

Click any question to see the reasoning, sources and community challenges.

6/10

Carbon Footprint — Operations

5/10

Carbon Footprint — Supply Chain

4/10

Emissions Trajectory

6/10

Energy Source

4/10

Nature & Biodiversity Impact

6/10

Resource Use & Waste

5/10

Water Impact

6/10

Targets & Commitments

7/10

Transparency & Accountability

Q10

7/10

Controversies & Red Flags

Community Verification

0 verifications · 0 challenges · Scored using SINK editorial review

Last scored: 9 Apr 2026

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