
About Us
Sustainability that drives success
We help businesses navigate the complex world of ESG with clarity, integrity, and forward-thinking solutions that create lasting value
Our Story
Tim Dee-McCullough founded Ancoram in 2023, having been frustrated at how few accountancy practices were providing the sustainability services so many of their clients sought.
Having seen the realities of real-world challenges faced by real-life people, Tim is passionate about leaving the planet in a better place than he found it. He spotted a unique opportunity to blend his deep technical accounting expertise with practical implementation of solutions to the tsunami of ESG regulation on the way, and thus Ancoram was born.
Ancoram is (quite literally) anchored in the sustainability conversation - our name is Latin for anchor, but also hope, refuge and support. We are regulated as an accountancy practice by ACCA, demonstrating our commitment to serving clients with professionalism, objectivity and integrity.
Our Team
Tim Dee-McCullough
Director
Tim is a leading voice in sustainability reporting and ESG strategy, bringing unparalleled expertise in navigating the complex regulatory landscape that organisations face today.
As founder and director of Ancoram, Tim guides multinational companies and financial institutions through the intricate world of sustainability frameworks including CSRD/ESRS, CSDDD, ISSB, TCFD and TNFD. His approach combines rigorous technical knowledge with practical implementation strategies, helping clients transform regulatory challenges into opportunities for authentic impact.
Tim's career spans influential roles at major organisations including MHA/Baker Tilly Ireland, ACCA, National Grid, RSA Insurance Group, and HSBC, where he developed deep expertise in sustainability reporting, assurance methodologies, and double materiality assessments. His international experience is enhanced by proficiency in business French and German.
A distinguished thought leader in the sustainability space, Tim has developed pioneering methodologies for ESG assurance and delivered a keynote speech at the 2024 Global Safety Summit at the House of Lords. He has also presented to the United Nations Global Compact, CBI and ICAEW on governance and sustainability reporting.
His work establishing an ESG impact framework for a biomaterials fashion startup demonstrates his ability to apply sustainability principles across diverse sectors.
A Fellow of both the Association of Chartered Certified Accountants and the Royal Society of Arts, and a Member of the Institute of Directors, Tim brings a multidisciplinary perspective to sustainability challenges that helps organisations not just comply with regulations, but truly enhance their environmental and social governance.
Katie Carey
Strategic partner
Katie specialises in ESG reporting, net zero strategy and decarbonisation with extensive experience in sustainability programme management across major corporations and startups.
Katie collaborates with Ancoram as a strategic partner, bringing complementary expertise in ESG implementation to help clients navigate the complex landscape of sustainability reporting and decarbonisation. She partners with organisations to develop comprehensive sustainability solutions with a particular focus on CSRD implementation, Scope 3 emissions analysis and value chain decarbonisation strategies.
Katie's expertise spans sustainability reporting frameworks, materiality assessments, product lifecycle assessments, and practical emission reduction programmes. She is certified in CSRD implementation, double materiality assessments, and sustainability consulting methodologies.
Prior to partnering with Ancoram, Katie led significant sustainability initiatives at Amazon, where she built emissions tracking systems, developed multi-regional sustainability action plans, and created decarbonisation strategies that delivered measurable environmental and cost benefits.
Sarah Whale
Strategic partner
Sarah is an impact coach who believes that most businesses want to do the right thing. Build responsibly, think long-term, and create real impact. But when you're caught up in the day-to-day pressures of running a business, sustainability can feel like a luxury, not a necessity.
Sarah supports B2B and health sector businesses struggling to balance long-term responsibility with short-term realities. Through tailored coaching, keynotes and workshops, she provide the tools and strategies to turn good intentions into real action - without sacrificing commercial success.
Sarah specialises in supporting small and medium-sized businesses and partners with Ancoram to support our clients in measuring, nurturing and coaching their responsible supply chains.
Matt Mahmood-Ogston
Strategic partner
Matt is a social impact photographer and storytelling consultant who helps brands, businesses and funders document their impact with authenticity.
Matt specialises in visual storytelling that creates meaningful connections between organisations and their stakeholders. His work combines photography and filmmaking expertise with a deep understanding of ESG and CSR communications.
Matt brings a unique perspective, informed by founding the Naz and Matt Foundation, an award-winning charity that works to reduce suicide and homelessness in the LGBTQ+ community. This personal journey began in 2014 following the loss of his fiancé, giving Matt exceptional insight into the power of authentic storytelling to create change.
His approach focuses on capturing genuine human moments that communicate impact in ways statistics alone cannot achieve. Matt collaborates with Ancoram as a strategic partner, helping sustainability-focused businesses communicate their impact more effectively with investors, customers and other stakeholders.

Our Promises
We practice what we preach.
We’re not in the business of green- or blue-washing to keep shareholders or other stakeholders happy. That’s why we’re on our way to becoming a B Corp. This is just the beginning.
We start (so our clients finish well).
We pioneer, experiment, and bring people, policies and processes together to create epic outcomes.
We are grounded in the present.
We know our limitations. We are aware of what is (and isn’t) possible based on existing technology and resources, and commit to continually growing our capacity.
We are future-focused.
We thrive on innovating, ensuring anything we build will outlive us and evolve with future generations.
Above all, we act with integrity.
We say what we mean, and we do what we say. We own our mistakes, learn from them, fix them, and celebrate them.