
SUSTAINABILITY MARKETING
Ley's say, you're invested in sustainability, but you are unsure whether your green marketing claims are safe from scrutiny. In today's climate, green claims can be as risky as rewarding. Businesses that make false claims face fines, regulatory investigations and reputational damage that can be difficult to repair.
At Tunley Environmental, our sustainability marketing and green claims compliance services protect your brand from the rising threat of greenwashing allegations and regulatory penalties.
WHAT SUSTAINABILITY MARKETING IS & WHY IT MATTERS
Responsible sustainability marketing is the practice of communicating your organisation's environmental and social achievements in a way that is truthful, evidence-based and compliant with regulatory standards such as the Competition Markets Authority (CMA) regulated Green Claims Code. It means your green claims are backed by verified data and presented transparently, so your audience cab trust your message.
It matters because consumers, investors and regulators are scrutinising sustainability claims like never before. In the UK, businesses that make misleading environmental claims may be subject to fines of up to 10% of their global turnover starting from the 6th April 2025. The CMA is authorised to issue these fines under the Digital Markets, Competition and Consumers Act (DMCCA) without the need for court proceedings. As a result, it is increasingly important for businesses to ensure the accuracy of their environmental claims.
OUR GREEN MARKETING SERVICES
We support organisations in turning sustainability performance into powerful, authentic communication. Because we only work with businesses we've assessed, you can be confident that every claim is accurate and defensible.


CONTINUE WITH NEXT STEPS
If you know where you're at, book a free consultation to get started. If you're unsure on where to start, take our service quiz to find out what your next steps should be.WHAT YOU GAIN FROM OUR SUSTAINABILITY MARKETING SERVICE
Misleading green claims or unclear messaging can result in severe penalties, reputational damage and loss of trust among customers, investors and regulators. From 6th of April 2025, the UK Competition and Markets Authority can directly enforce consumer protection law and issue fines of up to 10% of global turnover, including misleading environmental claims (so-called 'greenwashing'). In 2025 alone, millions of pounds in fines have been issued globally for non-compliant green claims, proving that regulators are taking action and businesses can no longer afford to get it wrong.
At the same time, organisations that communicate authentically can strengthen their brand, attract new customers and build long-term loyalty. Our approach ensures you achieve the latter without risking the former. Every piece of content we create is backed by verified data from your sustainability assessments, giving your stakeholders complete confidence in your message.
By working with Tunley Environmental, you’re marketing responsibly and protecting your brand against evolving green claims compliance regulations in the UK, EU, and beyond. With our sustainable brand marketing expertise, you’ll gain clear, compliant, and compelling messaging that differentiates your business, supports ESG goals and protects your reputation.

Every claim reviewed against green claims and greenwashing regulations.

Verified data ensures your messaging stands up to scrutiny.

Position your business as a sustainability leader.

Avoid penalties and reputational damage linked to false claims.

Marketing that aligns with your sustainability strategy and reporting.

100% 5-star feedback from global clients.

Independent, science-based analysis you can trust.
OUR TEAM OF PHD-LEVEL SCIENTISTS
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The team were so helpful and made this project so easy and painless. The communication was well executed and the requests were clear. I would 100% recommend working with Tunley Environmental, for all your sustainability reporting.”
Louise Ewer
Operations Director | Wunder-Bar Dispensing
They did exactly what was asked and where we had less than perfect understanding of the issues involved their expertise showed through. The response time to follow up enquiries was excellent and I would happily use Tunley again.”
Michelle Smith
Intellectual Property Controller | Power Roll
We used Tunley Environmental to help us with out carbon reduction targets, they conducted an embedded carbon report for one of our key ranges and we are now exploring next steps. I would highly recommend them professional, helpful a great company to work with”
Kieron King
Quality Manager | Inpress
From start to finish the whole team have excelled in communication and support. They made the entire process seemless, and nothing was too much for them. This is my first full experience completing a carbon assessment, and I couldn't have asked for a better company to complete this with.”
Rebecca Druce
SQE Manager | Spacecare
We found all of the Tunley Environmental representatives to be extremely friendly, helpful and knowledgeable. They provided a high standard of service with plenty of advice and support, including regular meetings to update on progress and present findings. We look forward to working with Tunley Environmental again on future projects.”
Mary Bellamy
Lead Research Nurse | University Hospitals Birmingham NHS Foundation Trust





CONSTRUCTION SUSTAINABILITY SERVICES

We can help you establish targets by quantifying emissions for every phase of your project, in line with the PAS 2080 Standard. Through third-party verification, we ensure that your project is completed in accordance with PAS 2080.
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WLCAs are conducted to determine the most sustainable products and systems for construction and renovation projects, as well as estimating the carbon emissions of a building over its entire lifespan.
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Our business carbon assessments provide a comprehensive review of your organisation's carbon emissions and offer practical solutions to help you reduce your environmental impact, cut costs, and ultimately reach net zero.
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A comprehensive report that details the environmental impact of a product. It is essentially a product's carbon footprint calculated following standardised procedures for specific product types, known as Product Category Rules (PCR).
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Our comprehensive supply chain management service helps optimise procurement policies, streamline supply chain processes, and provides specialised training to suppliers.
View In Full DetailFREQUENTLY ASKED QUESTIONS
We provide green claims audits and greenwashing compliance support, reviewing your sustainability statements to ensure they meet legal standards and avoid regulatory risks.
Sustainability marketing is the practice of promoting a company’s environmental and social initiatives in a way that is authentic, transparent, and compliant with regulations. At Tunley Environmental, we offer sustainability marketing services based on verified data from your sustainability assessment.
Green claims refer to statements businesses make about their environmental performance. These claims must be accurate and verifiable to comply with regulations such as the UK’s Green Claims Code and the EU Green Claims Directive.
Our marketing services are only available to clients who have completed an assessment with us, ensuring all claims are backed by accurate data.
Non-compliant sustainability claims can lead to serious consequences, including fines, legal action, and reputational damage. From 6 April 2025, the UK Competition and Markets Authority can directly enforce consumer protection law and issue fines of up to 10% of global turnover, including for misleading environmental claims (so-called 'greenwashing'). Tunley Environmental helps businesses avoid these risks through verified data and greenwashing compliance services.
Green claims compliance means ensuring any environmental or sustainability claims your business makes are truthful, accurate, and supported by evidence in accordance with the CMA Green Claims Code. At Tunley Environmental, we offer green claims audits and marketing support to help businesses comply with regulations such as the UK Green Claims Code and the upcoming EU Green Claims Directive.
Sustainability marketing focuses on promoting environmental and social impact in an honest and compliant way. Unlike traditional marketing, it requires evidence-based claims and adherence to green claims regulations, which Tunley Environmental ensures through data-backed strategies.
A green claims audit is a review of your sustainability communications and marketing content to ensure every claim is evidence-based and compliant with green marketing regulations. Tunley Environmental provides green claims audits to protect your brand and ensure your messaging meets legal requirements.
To avoid greenwashing, businesses must ensure all sustainability statements are accurate, clear and supported by credible data. Tunley Environmental prevents greenwashing risks by linking marketing content to verified results from your sustainability assessments and aligning with the Green Claims Code.
Yes. We monitor regulatory requirements and ensure your marketing meets compliance standards set by the UK CMA and the EU Green Claims Directive. Our green claims compliance services give you confidence that your messaging is legally sound.
We only provide sustainability marketing services to clients who have completed an assessment with us to ensure every green claim we help communicate is backed by verified data. This protects your business from compliance risks and builds stakeholder trust.
READY TO GAIN THE SUSTAINABILITY ADVANTAGE?
Start with an assessment, then let us help you communicate your verified achievements with confidence.
DOWNLOAD OUR FREE GREEN CLAIMS CODE GUIDE
By adhering to this guide, not only will you comply with regulatory requirements, but you will also build trust with your customers and make meaningful contributions towards a sustainable future.
In this guide, you will learn:
- The importance of accurate, transparent, and trustworthy environmental marketing claims.
- How businesses can ensure their claims are truthful, clear, substantiated, and consider the full life cycle impact of products.
- The link between Carbon Assessments and Green Claims.
- Examples of non-compliant and compliant green claim statements.
- Global regulations for greenwashing, including rules from EU, UK, US, Hong Kong, China, India, and more.
DOWNLOAD THE GUIDE NOW
Position yourself with the knowledge to promote authentic green marketing to your customers.