WHAT SIGNATORY STATUS MEANS
Clarity, Integrity, and Trust
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Being a signatory means an organisation’s communications have been independently assessed and meet the Charter’s standards of transparency, accountability, fairness and honesty.
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It demonstrates responsible communication, avoids exaggeration and ensures claims are backed by evidence.
WHY JOIN THE CHARTER?
Confidence, Credibility, and Recognition
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Joining the Charter helps organisations strengthen the integrity of their sustainability communications.
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Signatories receive independent validation, tailored guidance and ongoing support, reducing reputational risk and building confidence among customers, investors and employees.
TRUSTED BY INDUSTRY LEADERS
See how leading organisations are setting a new benchmark for transparent, responsible communication. Read more case studies here.
“Signing the Charter gave us confidence in our sustainability messaging. The independent validation has strengthened our reputation and reassured both customers and colleagues that our communications are credible and responsible.”
“The guidance and reviews have been invaluable. The Anti-Greenwash Charter helped our team communicate with greater clarity and accountability, ensuring every claim is backed by evidence and reducing the risk of being misunderstood.”
“Joining The Anti-Greenwash Charter has demonstrated to our stakeholders that we take integrity seriously. It’s helped us build trust, protect our reputation, and be recognised as a leader in responsible communication within our industry.”
Our Signatories
Our signatories are forward-thinking organisations leading the way in transparent, credible, and responsible communication.
How It Works
Joining the Charter is straightforward, supportive, and designed to recognise and strengthen your responsible approach to communication.
1. Application and Assessment
We start with a review of your current communications, media presence, and regulatory history to confirm your suitability as a signatory.
2. Development and Approval
You’ll work with our team to develop your own Green Claims Policy, with optional content reviews and training available based on your needs.
3. Recognition and Verification
Once approved, you’ll earn recognised signatory status and your unique Charter logo, supported by ongoing campaign reviews and guidance.
The Standards
By becoming a signatory, your organisation affirms its commitment to four core standards of responsible communication:
1. Transparency
Clearly communicate the benefits of your product or service, ensuring no important information is concealed or omitted.
2. Accountability
Substantiate your claims with accurate, empirical evidence that is regularly evaluated. Share verifiable facts, figures, and statements.
3. Fairness
Use fair, clear, and unambiguous language when making comparisons with other products or organisations.
4. Honesty
Make specific, truthful statements about your progress, and ensure your actions align with your promises.
Insights and Impact
Explore real-world case studies and guidance on what responsible communication looks like, and why it matters​. Read all here.
What Signatory Status Really Means and Why It Builds Trust
What it means to be a Charter signatory and how this commitment strengthens trust in sustainability communication.
How Patagonia’s Progress Report Acts Like a Green Claims Policy
A look at how Patagonia’s 2025 progress report models honest, transparent communication and reflects the standards of the Charter.
The Age of Unfiltered Everything: What Happens When Anyone Can Say Anything?
In a world where anyone can say anything, trust in sustainability claims is eroding; this article explores how we got here.