Spirax sustainability score: 42/100

·Industrial Equipment / Machinery·Cheltenham, United Kingdom·Founded 1888·Last verified 29 August 2026
42
out of 100
Below expectationsPending ReviewMixed evidence· 10 src

Spirax scores 42/100 (Below expectations) on SINK's independent climate assessment — scored from public data only, no company payment can change a number. Last verified August 2026.

That places Spirax joint 230th of 650 companies scored, and 3rd of 7 in Industrial Equipment / Machinery.

Spirax exceeds near-term emissions targets and holds third-party verified data across Scope 1+2, but Scope 3 supply chain reduction remains unproven. Biodiversity assessment and renewable energy transition are active but incomplete. Weak points: circular economy metrics absent, water baselines still being established, full supply chain decarbonisation evidence pending.

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This score is built from public data only. If your practice is stronger than your disclosure, submit evidence for review — or challenge any question, free.

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The calculation

How is Spirax's SINK score calculated?

Same formula for every company. No curve. No private weighting.

SINK = (0.3 × Base + 0.7 × Performance) × Scale
Industry base impact
Industrial Equipment / Machinery sector ceiling.
44 / 100
Performance score
Sum of the 10 rubric questions, scored 0–10 each.
67 / 100
Raw score
Weighted average before scale penalty.
(0.3 × 44) + (0.7 × 67) = 60.1
Scale penalty
Multiplier based on absolute emissions volume — physics-first.
× 0.7
Final score
Rounded. Below expectations.
42 / 100
The ten questions

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

Strongest on Carbon Footprint — Operations and Targets & Commitments (8/10, 8/10). Weakest on Water Impact and Resource Use & Waste (5/10, 5/10).

Where the evidence comes from

What evidence is Spirax's score based on?

10 sources used in this assessment. All publicly available. Each row shows which rubric questions it informed.

[1]Self-reported
Spirax Group — Sustainability Report Methodology Statement

We employ an 'operational control' definition to outline our Company boundary. Included within that boundary are manufacturing facilities, administrative and sales offices.

2024
Q1Q2Q4
View →
[2]Self-reported
Spirax Group FY2024 News Release

reduction in our absolute scopes 1 and 2 market-based greenhouse gas emissions of 20% (including acquisitions) compared to 2023

2024
Q1Q3Q5Q8
View →
[3]Self-reported
Spirax Group — Supplier Sustainability Code (Rev 2.3)

The minimum standard that we ask our Suppliers and their sub-tier Suppliers to adhere to when conducting business with us.

2024
Q2Q5Q6
View →
[4]Self-reported
Spirax Group aligned with SBTi Net Zero Standard

Reduce near-term absolute scope 1, 2 and 3 emissions 50.4% by 2032

2021
Q2Q8
View →
[5]Self-reported
Spirax Group H1 2025 Results

reduction in our absolute Scopes 1 and 2 market-based greenhouse gas emissions of 32% compared to 2024 and an over 60% reduction compared to our 2019 baseline

2025
Q3
View →
[6]Self-reported
Spirax Group — Embedding Sustainable Operations

We continue to increase the number of manufacturing sites certified to ISO 14001. By end of 2025, 22 of our 33 manufacturing sites were ISO 14001 certified.

Ongoing
Q6Q7
View →
[7]Third-party verified
Nature Positive — Spirax Group Biodiversity Assessment

Nature Positive created baseline biodiversity assessments for 30 global manufacturing sites for the Spirax Group, including its head office.

Unknown
Q5
View →
[8]Self-reported
Spirax Group — About Us / Our Impact

protected 2,756 acres within a Patagonian nature reserve in Argentina equivalent to five times our operational footprint

Ongoing
Q5
View →
[9]Third-party verified
Science Based Targets initiative — Target Dashboard

The SBTi's Target Dashboard lists companies and financial institutions that have set science-based targets, or have committed to developing targets.

Ongoing
Q8
View →
[10]Self-reported
Spirax Group — Sustainability Reporting Centre

Inclusion in the FTSE4Good Index demonstrates that we have met stringent environmental, social and governance criteria.

Ongoing
Q10
View →

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

Spirax in context

How does Spirax compare with other industrial equipment / machinery companies?

Where Spirax sits among industrial equipment / machinery peers.

Among the 7 major industrial equipment / machinery brands we've scored, Spirax sits 3rd of 7.

3/7
Spirax's rank
38
Industry average
31
Industry low
48
Industry high
How this score has moved

Has Spirax's score changed?

today

Score history begins .

As Spirax's score updates, the trajectory will appear here.

We're backfilling historical scores for FTSE 100 and S&P 100 companies over the coming weeks.

What's being contested

Has Spirax's score been challenged?

This score is not currently being contested.

Every challenge is published. We'd rather be corrected than wrong — that's the whole point.

No challenges submitted yet. If you have evidence that contradicts this score, you can challenge any question above — cite a public source and we'll review it.

About Spirax

Spirax Group is a UK-based industrial manufacturing company founded in 1888, headquartered in Cheltenham. It designs and produces fluid handling, specialist steam solutions, and industrial equipment for global customers across energy, chemicals, manufacturing, and infrastructure sectors. Mid-cap FTSE 350 company with ~5,600 employees globally.

Founded
1888
Headquarters
Cheltenham, United Kingdom
Employees
~10,000
Annual revenue
~£1,703M
Company website ↗
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