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WHAT WE DO
Net Zero
Helping organisations develop and drive progress towards net zero goals.
Nature
Helping organisations to protect and enhance natural ecosystems.
Products & Projects
Helping organisations assess the impact of their products and projects on the environment.
Water
Helping organisations to safeguard water resources for people and the planet. 
Climate Risk & Resilience
Helping organisations to identify, assess and manage climate-related risks.
OUR EXPERTISE
Consulting

Helping you to achieve compliance, reduce emissions and build long-term business value. 
Assessing

Measurement of your environmental impacts across carbon, water, and nature.
Complying

Ensuring you stay ahead of emerging regulations like SECR, CBAM, ISO 14068, PPN 006 and CSRD.
Marketing

Ensuring your marketing is green claim compliant to protect your brand from potential greenwashing.
Training

Equip your teams with the knowledge to lead on sustainability in carbon, nature and water.

Sustainability Solutions
Flexible Sustainability Packages

Tailored packages to suit your organisation's goals.
Sustainability Verification

Receive a verification badge from a completed BCA, LCA, ECA, and EPDs to show and validate your sustainability efforts.

Sustainability Software
Sustainability Management Software

Manage your sustainability data, carbon accounting, reporting and reduction planning in one platform with VerdaMetric.

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TRUSTED SCIENCE-BASED ENVIRONMENTAL SUSTAINABILITY SPECIALISTS

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ABOUT TUNLEY ENVIRONMENTAL

Tunley Environmental is a science-based environmental sustainability consultancy specialising in carbon, nature, water and regulatory compliance. Our multidisciplinary team of PhD-level scientists delivers expert-led environmental solutions that help organisations improve environmental performance, strengthen sustainability reporting and navigate complex regulatory requirements.

Alongside our consultancy services, we have VerdaMetric, our sustainability management software, giving organisations an easy way to manage sustainability data, carbon accounting, reporting and reduction planning throughout the year. VerdaMetric combines intelligent technology with the scientific expertise behind Tunley Environmental. 

We believe meaningful environmental progress requires credible science, clear strategy and long-term partnership. That is why organisations across manufacturing, healthcare, construction and global supply chains trust Tunley Environmental as an extension of their sustainability teams.

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Mission
Mission

Our mission is to help organisations worldwide to navigate sustainability, through science-based, impact-focused solutions, simplifying complexity and ensuring compliance with current and evolving regulations.

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Vision
Vision

"TO REDEFINE ENVIRONMENTAL EXPERTISE"

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Values
Values

As a company, we encompass the values of:

Collaborative

Future Focused

Bold

Employee & Customer-Centric

WHY ORGANISATIONS WORK WITH TUNLEY ENVIRONMENTAL

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PhD-level scientific expertise
Deep technical knowledge delivered by a multidisciplinary team of scientists.
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Science-based environmental assessments
Robust assessments grounded in recognised methodologies, data and scientific best practices.
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Regulatory compliance support
Practical guidance to help organisations navigate evolving environmental regulations.
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Carbon, nature, water specialists
Specialist expertise across carbon, nature, water and environmental performance.
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Flexible, long-term sustainability partners
Ongoing environmental support tailored to your organisation's changing needs.
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Practical, commercially aligned solutions
Science-based solutions designed to support real-world business objectives.
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Consultancy + Technology
Combine Tunley's scientific expertise with VerdaMetric sustainability management software.
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"We help organisations navigate environmental sustainability through science-based, impact-focused solutions that simplify complexity, strengthen compliance and deliver measurable environmental progress. "

Dr William Beer, CEO

MEET OUR TEAM OF PHD-LEVEL SCIENTISTS

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Dr Aaron Yeardley, PhD Science Team Co-LeadRead full bio
Dr Aaron Yeardley, PhD Science Team Co-Lead
Anusha Nawoor
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Dr Anusha Nawoor, PhD Environmental ScientistRead full bio
Dr Anusha Nawoor, PhD Environmental Scientist
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Dr Luan Ho, PhD Science Team Co-LeadRead full bio
Dr Luan Ho, PhD Science Team Co-Lead
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Dr Tara Garraty, PhD Senior Scientist and Nature LeadRead full bio
Dr Tara Garraty, PhD Senior Scientist and Nature Lead
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Dr Gareth Davies, Phd Senior Scientist and Carbon Co-LeadRead full bio
Dr Gareth Davies, Phd Senior Scientist and Carbon Co-Lead
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Dr Nathan Wood, PhD Senior Scientist and Carbon Co-LeadRead full bio
Dr Nathan Wood, PhD Senior Scientist and Carbon Co-Lead
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Emily Alexander Senior Associate ScientistRead full bio
Emily Alexander Senior Associate Scientist
Annaelle Hip Kam
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Dr Annaëlle Hip Kam, MSc, PhD Sustainability ScientistRead full bio
Dr Annaëlle Hip Kam, MSc, PhD Sustainability Scientist
Yashy Raghoo-Luchmun
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Yashy Raghoo-Luchmun, PhD Pend. Sustainability ScientistRead full bio
Yashy Raghoo-Luchmun, PhD Pend. Sustainability Scientist
Swabiiha Buxoo
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Swabiiha Buxoo, PhD Pend. Sustainability ScientistRead full bio
Swabiiha Buxoo, PhD Pend. Sustainability Scientist
400 OVER 400 PUBLICATIONS
400 OVER 400 ASSESSMENTS GLOBALLY
65 OVER 65 GUEST PRESENTATIONS

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. Working with Tunley Environmental, we conducted a staff engagement survey about sustainability practices at home and at work, the findings have been really informative and helped guide us on areas for improvement and development. We look forward to working with Tunley Environmental again on future projects.”

Mary Bellamy

Lead Research Nurse | University Hospitals Birmingham NHS Foundation Trust

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

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TUNLEY ENVIRONMENTAL'S TIMELINE

The Tunley name has its roots in engineering. Dr William Beer's great-grandfather, Frank Tunley, worked as a pattern maker for Laycock Engineering in Sheffield from the 1920s to the 1960s. 

Generations later, a shared interest in engineering, design and environmental improvement inspired the creation of Tunley Engineering. What began as a business focused on improving engineering processes has since evolved into Tunley Environmental - a science-based sustainability consultancy supporting organisations across carbon, nature, water and regulatory compliance. 

  • 2016: The idea begins

    The early concept for what would become Tunley Environmental began in 2016. Dr William Beer recognised how improvement to engineering processes could create lasting operational change, laying the foundations for the business that followed. 

  • 2017: Tunley Engineering is established

    Tunley Engineering became a registered company, with William Beer committing fully to growing the business. Initially focused on helping organisations improve engineering processes and lead times, Tunley also secured its first customer during the year. 

  • 2018: Going global

    Tunley secured its first global contract and adopted a cloud-based Business Management System. The company also achieved ISO 9001:2015 certification, demonstrating its commitment to quality management as the business continued to grow. 

  • 2019: Expanding Tunley's expertise

    Following continued growth, Tinley expanded its offering to include training solutions for engineers, building on the experience gained through its engineering assessments and clients work. 

  • 2020: Adapting through change

    As COVID-19 changed the way organisations operated, Tunley's existing remote working model enabled the team to continue supporting clients without relying on on-site delivery. 

  • 2021: A greater focus on decarbonisation

    Tunley launched 'Engineering a Decarbonised Future', bringing together a team of carbon specialists and marking a significant expansion into supporting organisations with understanding and reducing their carbon emissions.

  • 2022: Growing environmental services

    Demand continued to grow for Tunley's environmental work, including Embodied Carbon Assessments, alongside an increase in recurring client partnerships.

  • 2023: Tunley Environmental is born

    Tunley Engineering became Tunley Environmental, reflecting the company's evolution beyond engineering and carbon into wider environmental sustainability. 

    The team expanded its expertise into biodiversity, introducing new services to support organisations in understanding their impact on nature and responding to emerging Biodiversity Net Gain requirements. 

  • 2024: Expanding our environmental expertise

    Tunley continued to broaden its environmental services, introducing support across areas including water footprinting, supply chain biodiversity, Environmental Product Declarations and CBAM support. The company also became certified to support organisations with Airport Carbon Accreditation and partnered with training provider Astutis to deliver specialist sustainability and carbon accounting training. 

    The year also marked the beginning of Tunley's international team, with our first team member based in Mauritius. By 2026, this had grown to a team of four. 

    Tunley's also launched its Sustainability Verification Badge, giving organisations completing eligible assessments with Tunley a way to demonstrate their commitment to credible environmental action. 

    Recognition: Dr William Beer was named a finalist for CEO of the Year at TheBusinessDesk.com Yorkshire Leadership Awards, while Tunley Environmental was recognised as Best Sustainability Consultancy 2024 at the Northern Enterprise Awards. 

  • 2025: Broadening our sustainability offering

    Tunley continued its evolution into a multidisciplinary environmental sustainability consultancy, expanding its services across carbon, nature, circularity and regulatory reporting. New areas of support included CSRD and Double Materiality Assessments, Sustainable Procurement aligned with ISO 20400, SBTi alignment, Circular Economy Assessments and a wider range of nature and biodiversity services. 

    The year also saw Tunley reorganise its offering around the environmental challenges organisations face, introducing its 'What We Do' and 'Our Expertise' structure and launching dedicated sector pages to make it easier for organisations to find support relevant to their industry. 

    Tunley also moved into publishing with the launch of its first book, 99 Facts of Climate, Science and Society, using AI-generated imagery to illustrate the impact behind the facts. Dr William Beer and Dr Tara Garraty also continued as featured authors to The Customer is The Planet.

    Recognition: Tunley ranked #18 in Elite Business's Top 100 SME Businesses 2025, was named Net Zero Champion 2025 at the Good Small Business Awards. Dr William Beer also received Sustainability Entrepreneur of the Year - North East, Yorkshire and Humber.

  • 2026: From specialist support to sustainability technology

    Tunley continued to expand its specialist support in 2026, introducing new services across climate risk and resilience, nature regulation, BREEAM, Extended Producer Responsibility and PAS 2090, alongside a new retainer model designed to provide organisations with ongoing access to Tunley's environmental expertise. 

    The launch of the Tunley Impact Network also strengthened our approach to external partnerships, while a growing collection of client case studies began showcasing the progress being made through longer-term relationships. 

    Sharing our expertise

    Early in 2026, Tunley published The Sustainability Leader's Playbook 101, continuing the company's work to make sustainability knowledge more accessible to business leader's and sustainability professionals.

    Launching VerdaMetric

    Later in 2026, Tunley Environmental launched VerdaMetric, its sustainability management software, marking a new chapter in the company's development. 

    Built around the challenges our scientists encounter when supporting organisations with carbon accounting, reporting and sustainability management. VerdaMetric brings sustainability data, calculations, evidence, performance monitoring, reduction planning and supplier engagement into one platform. 

    The launch brings together Tunley's science-based consultancy expertise with technology designed to support organisations with the ongoing management of environmental sustainability. 

    Recognition: Tunley's work was recognised at the International CSR Excellence Awards, while Dr William Beer received the Green Leader award at the North West Leadership Awards. 
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OUR HISTORY

Frank Tunley, Dr Will Beer’s great-grandfather, was a pattern maker for Laycock Engineering in Sheffield. From the 1920s until the 1960s, he worked on a wide range of power transmission and garage equipment products. 

Will and Peter have always been fascinated by engineering and design. For many years, they have repaired and re-built motorcycles and cars in their spare time, and they’re continually looking to create new designs that could improve the world.

Will and Peter’s passion for engineering and their concern for the environment led to the creation of Tunley Engineering. With their deep knowledge and experience in engineering, they saw an opportunity to make a positive impact on the world by helping businesses reduce their carbon emissions. Their vision for a cleaner, more sustainable future inspired them to build a successful carbon reduction business that has since helped numerous clients to achieve their environmental goals.

2016

The early concept of what would later become ‘Tunley Engineering’ began in 2016 by Dr William Beer, who through his Engineering Experience realised, just by improvement of processes you could make long-lasting changes to lead times. Regularly William would complete four hours early morning before work.

2017

‘Tunley Engineering’ becomes a registered company and William Beer commits fully to building a company. Supporting those that ‘design what they sell’ to improve lead times and processes. In the year 2017, Tunley landed it's first customer.

2018

After great success, Tunley landed it’s first global contract! Going even further and adopting a Cloud-based BMS in Q3 of 2018. Tunley also achieved ISO9001:2015 in Q4 ensuring its commitment to quality.

2019

After seeing a significant, percent turnover growth the company grew by 50% from 2018. Shortly after, the number of positive testimonials began to skyrocket. After numerous assessments we expanded into providing training solutions to engineers. Our company turnover increased by 111% on the previous year

2020

Like many companies, Covid forced us to rethink how we operate. Tunley was already working 100% remotely so we continued to provide high-quality support without needing to be on-site. Our company turnover increased by 8% on the previous year.

2021

The launch of ‘Engineering a Decarbonised Future’ saw Tunley Engineering’s most ambitious move to date. Assembling a team of market leading carbon experts with a passion to make a difference. 2021 saw Tunley Engineering not only deliver its most impressive growth to date, but help our customers make a positive impact on reducing their carbon emissions. Our company turnover increased by 100% on the previous year

2022

Over time we have seen substantial growth in our Embodied Carbon Assessments and an increased in re-occurring revenue contracts. Our company turnover increased by 53% on the previous year

2023

Since starting, 2023 is currently our highest employment year, with 17 members of staff, of which 10 are Scientists. Our company turnover is predicted to increase by 189% on the previous year. In the year 2023, Tunley expanded and Tunley Engineering became Tunley Environmental, covering a more sustainable outlook on the future with services covering environmental and biodiversity needs and requirements.

In November 2023, Tunley introduced three new services under the arm of biodiversity. Biodiversity is becoming ever more apparent in businesses, the need to show what your impact is and what you are doing to show a 10% Net Gain. Our three new services are; Biodiversity Footprint Assessment and Biodiversity Net Gain.

2024

In 2024, our employment rate increased by 83%, bringing our team to 22 members. Our company turnover rose by 111.8% compared to 2023.

By assessing our impact and the outcomes of our customers' assessments, we track Tunley's contributions to proposed emissions reductions and biodiversity enhancement. To date, we have put forth plans to reduce carbon emissions by 249,278 tCO2e per year—equivalent to the weight of 1,723 blue whales.

On the biodiversity front, we have contributed to a net gain of 26.133 habitats through on-site development, the equivalent of 9.15 football pitches.

2024 was an award-winning year for Tunley. We were honored with the title of "Best Sustainability Consultancy 2024" by SME News at the Northern Enterprise Awards.

With an array of new service launches throughout the year, Tunley is well-positioned to help organisations achieve their net-zero carbon and biodiversity goals