Protein Works sustainability score: 19/100

·Food & Beverage (non-meat)
19
out of 100
Significant gapsPending Review

Protein Works scores 19/100 (Significant gaps) on SINK's independent climate assessment — scored from public data only, no company payment can change a number. Last verified September 2026.

That places Protein Works joint 643rd of 667 companies scored, and 45th of 45 in Food & Beverage (non-meat).

Is this your company?

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.

Enhanced Assessment — £99
The calculation

How is Protein Works'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
Food & Beverage (non-meat) sector ceiling.
50 / 100
Performance score
Sum of the 10 rubric questions, scored 0–10 each.
17 / 100
Raw score
Weighted average before scale penalty.
(0.3 × 50) + (0.7 × 17) = 26.9
Scale penalty
Multiplier based on absolute emissions volume — physics-first.
× 0.7
Final score
Rounded. Significant gaps.
19 / 100
The ten questions

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

Strongest on Controversies & Red Flags and Carbon Footprint — Operations (8/10, 2/10). Weakest on Targets & Commitments and Emissions Trajectory (0/10, 0/10).

Where the evidence comes from

What evidence is Protein Works's score based on?

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

[1]Source
themanufacturer.com

Runcorn-based Protein Works operating under Class Delta Ltd has now seen double-digit revenue growth for a fifth consecutive year.

Q1Q7
View →
[2]Source
retailtimes.co.uk

From a cutting-edge food manufacturing facility and global fulfilment centre to its technology and digital marketing platforms

Q1Q4
View →
[3]Source
en.wikipedia.org

Protein Works is a British functional food brand that makes protein shakes, meal replacements, complete meals, snacks and supplements.

Q2Q6
View →
[4]Source
insidermedia.com

34 per cent of turnover now comes from global markets

Q2Q7
View →
[5]Source
chesterstandard.co.uk

Protein Works in Runcorn has seen a 39.4 per cent jump in turnover, reaching £42.8 million for the fiscal year ending August 31, 2023.

Q3Q10
View →
[6]Source
cbinsights.com

record-breaking 2024, which saw the firm chalk up best-ever profits on the back of turnover rising 40 per cent, and drive a 20 per cent increase in staff numbers.

Q3Q4
View →
[7]Source
theproteinworks.com

No sustainability or nature policy content found on this page per verified URL list.

Q5Q8Q9
View →
[8]Source
fairr.org

Addressing deforestation is now becoming a mainstream commercial imperative as the world responds to climate change and biodiversity loss.

Q5
View →
[9]Source
4ocean.com

The Protein Works, has made its protein powder packaging entirely recyclable.

Q6
View →
[10]Source
sciencebasedtargets.org

The SBTi enables companies and financial institutions worldwide to play their part in combating the climate crisis.

Q8
View →
[11]Source
uk.linkedin.com

Protein Works is a multi-award-winning functional lifestyle nutrition brand based in the Northwest.

Q9
View →
[12]Source
influencemap.org

InfluenceMap has been working closely with investors to fact-check company disclosure on climate policy engagement since 2017.

Q10
View →

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

Protein Works in context

How does Protein Works compare with other food & beverage (non-meat) companies?

Protein Works sits at the bottom of the food & beverage (non-meat) pack.

Among the 45 major food & beverage (non-meat) brands we've scored, Protein Works sits 45th of 45.

45/45
Protein Works's rank
42
Industry average
19
Industry low
57
Industry high
How this score has moved

Has Protein Works's score changed?

today

Score history begins 7 September 2026.

As Protein Works'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 Protein Works'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 Protein Works
Founded
Headquarters
GB
Employees
~165
Annual revenue
~£51M
Company website ↗
Track Protein Works

We'll let you know when the score moves.

Email alerts when a rubric question is verified, a challenge is resolved, or the overall score changes.

THE SUNDAY RUNDOWN

Which companies moved this week, and why.

One email, every Sunday. Score changes, new research, the stories behind the numbers. Free.

No spam. Unsubscribe in one click.

HOW SINK STAYS INDEPENDENT

Readers and institutions support our work. Companies can pay to submit evidence we couldn't find. Neither type of payment changes a score.