Clarity in sustainability, delivered through domain expertise

Cambianz is an independent, UK-based sustainability consultancy supporting multinational organisations in solving sustainability challenges and meeting ESG requirements.
The team combines strategic, advisory, and technical expertise with a practical, human-centred approach - helping organisations meet obligations, navigate complexity and deliver business objectives with confidence.
Meet the team

A focused team with deep expertise

Our flexible business model and international network of associates ensures your project gets the right team with the right skills.
Casilda Malagon, Cambianz Lead Consutant
Casilda Malagon
Founder and managing director
Casilda founded Cambianz on a simple conviction: that sustainability done well creates real business value. She advises C-suite leaders on designing and executing sustainability strategies. She excels at combining deep expertise with humanity to create long lasting partnerships with our clients. Her passion is delivering high-impact results at the intersection of environmental stewardship and innovation.

Mark Holmes, Cambianz Health and Safety Lead
Mark Holmes
Health and Safety Lead
Mark turns complex health, safety and ESG requirements into clear, workable outcomes. With senior experience in the resources sector, including roles at Anglo American, the International Council on Mining and Metals and the International Association of Marine Contractors, he has led multi-stakeholder programmes across some of the world's most demanding regulatory environments. Recognised as one of Health and Safety at Work's 40 Under 40, he brings the technical credibility and expertise that our clients require. 

Holly Bassett, Cambianz Content Lead
Holly Bassett
Content Strategy Lead
Holly makes sustainability mean something to the people who need to act on it. A communications specialist with senior experience at Smiths Group, Guy's & St Thomas' Foundation, Associated British Ports and ICMM, she knows how to translate complex ESG narratives into content that is clear, credible and compelling - and has done so for audiences from boardrooms to the public.

Gordon Cowlan, Cambianz data science lead
Gordon Cowtan
Data Science Lead
Gordon solves the data problem that bothers most sustainability reporting functions: messy, inconsistent inputs that resist standardisation. With 20+ years experience working across organisations of all sizes, he designs the transformation pipelines and automated workflows that turn real-world datasets into clean, audit-ready outputs. He is increasingly applying AI and large language models to accelerate that process.

Gonzalo Celorio, Cambianz Language Partner
Gonzalo Celorio
Language Partner
Gonzalo ensures that Cambianz clients can communicate their sustainability information with precision across languages and jurisdictions. As head of CM Idiomas - a specialist translation firm with over 75 years of experience serving governments, businesses and international organisations - he brings the rigour and sector depth that sustainability reporting demands, from regulatory filings to stakeholder communications.