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  7. Diploma PLC
Company logo

Diploma PLC | Sustainability Performance

https://www.diplomaplc.com

Diploma provides specialized distribution services and products across various sectors, emphasizing operational excellence and customer-focused solutions.

1931

United Kingdom

1,001 - 5,000 employees

Mechanical & Industrial Engineering

$1B - 10B in revenue

$100M - 500M in profitability

Submit or report inaccurate dataDownload Company Insights

Sustainability Ranking & Industry Benchmark

#492
Overall
#57
in United Kingdom
#5
in Mechanical & Industrial Engineering

Sustainability Maturity

​​0123456789​​%

Sustainability Intent

Available in
Scale package

Access
​​0123456789​​%

Industry Rank

19 out of 109

Overview
Environmental
Carbon emissionsEnergy consumptionWaste Management
Social
Diversity and Inclusion
Governance
TargetsESG scores and Exclusions
Financial Data
Business performanceCapital & innovationAnalyst projections

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CO2 scope 1 + 2

8.9K CO2e tonnes, 2025
Leading

Renewable energy

82% 2025

Waste generated

4.8K tonnes, 2025
Leading

Female employees

32% 2025
Aligned

Market cap

769.9B $, 2026▼22.4% YoY

Revenue

1.2B $, 2025▼10.6% YoY

Carbon emissions

Reveal data for 1 credit

Industry rank: 6 out of 109


Total CO2 emissions
(CO2e tonnes)

Industry rank: 6 out of 109

Scope 1
Scope 2 location based
Scope 3 downstream
Scope 3 upstream
Industry benchmark
(adj. for revenues)
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Renewable energy

Reveal data for 1 credit
82%2025

Industry rank: 2 out of 109


Total energy consumption
and % renewables
(MWh, % of consumption)

Industry rank: 2 out of 109

Total energy

Share of renewable energy

Industry benchmark

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Intensity


Greenhouse gas intensity Scope 1, 2 (tCO₂e /$M)
Greenhouse gas intensity (Scope 1, 2, 3)(tCO₂e /$M)
Energy consumption (direct) intensity (MWh /$M)
Waste generation intensity (tonnes /$M)
Industry Benchmark

4.5

B/M 13.9

140.0

B/M 403.5

10.0

B/M 37.2

2.4

B/M 3.2


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Female employees

Reveal data for 1 credit

Share of female employees (%)

Share of female board members

25
50
75
100
Company
Benchmark
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Waste

Reveal data for 1 credit
4.8K2025

Total waste generated (tonnes)

Total waste
Recovered & recycled
Not-recovered & not-recycled
Industry Benchmark

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Controversy level


Very Low
Low
Noticeable
High
Severe
Download Controversy Analysis
  • Diploma PLC has faced sustained UK FCA scrutiny over inadequate disclosure of acquisition pipeline volatility in its specialised distribution businesses, plus the contested 2024 USD 475 million Peerless Aerospace Fastener acquisition antitrust review and periodic class actions over alleged inadequate post-acquisition integration disclosure affecting UK minority shareholders.
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Carbon emissions breakdown

Reveal data for 2 credits

KPIMetricYear
20212022202320242025Benchmark
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Market cap

769.9B $, 2026▼22.4% YoY

Revenue

1.2B $, FY2025▼10.6% YoY

EBITDA

283.1M $, FY2025▼9.1% YoY

Operating margin

18% Industry: 12▼8.7% YoY

Revenue & EBITDA

$1.2BFY2025 revenue

Total Annual
Revenue & EBITDA
($ B)

Annual revenue
EBITDA
3 year change
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Margin trends


Margin as % of revenue

Gross margin
Operating margin
Net margin

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Free cashflow

192.2M 2025▼31.4% YoY

Capex

10.6M 2025▲35.7% YoY

Debt/equity ratio

0.5 Industry: 1▼NaN% YoY

Return on invested capital

13.0%FY2026

Return on invested capital (ROIC)
Industry benchmark

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Analyst revenue estimates & actuals


Analyst consensus vs actuals
($ B)

Actual revenue
Consensus estimates
Estimate only

0.9

▼ 1.1%

2023

1.0

▼ 1.7%

2024

1.2

▲ 0.8%

2025

2.7

2030

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Sustainability targets and commitments

Reveal data for 1 credit
TargetYearValueScopeBaseline

Progress against targets

Environmental policy coverage

Carbon reduction policy

Available

Human rights policy

Available

Recycling policy

Available

Workplace health & safety policy

Available

50%
Independent Directors

5 out of 10 incl. management

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Overall score

40

Environment

19

Social

51

Governance

52

Exclusion screening

Adult content

Not available

Alcoholic

Not available

Animal testing

Not available

Firearms

Not available

Tobacco

Not available

Gambling

Not available

Nuclear

Not available

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Reporting

sustainability report symbol

Sustainability Report

Available

image report
Available

Sustainability employees


Total sustainability employees

7-10


    Available in
    Scale package

    Access
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