How you benefit
We are top technology and integrated skills
to simplify ESG and thrive
Enhance your competitiveness
Partner with us for seamless compliance with supply chain ESG requirements, boosting your appeal to B2B/B2C clients, talent and investors.
Maximized synergies to save time and money
Integrated ESG solutions of reporting, strategy and communication free teams to focus on core business, while boosting growth and trust.
Actionable intelligence
Real-time, tech-enabled ESG data to drive informed decisions and improve performance—cutting through regulatory or data complexity to unlock impactful outcomes.
1
%
reporting costs exceed sustainability action
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We help optimise resources on reporting so you can focus on advancing your sustainability agenda
1
%
businesses integrating ESG into operations are more profitable
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We thoroughly guide your sustainability strategy and execution to unlock value, growth and stakeholder engagement.
1
%
global CEOs are "struggling to articulate a compelling ESG story"
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Stand out with honest communication and compelling narratives that resonate with your audiences
1
%
buyers are willing to pay more for products responsible brands
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Consumers are aware of their impact and therefore demand sustainable products and services.
Your clients, banks and employees
expect you to act and communicate
Integrated ESG Solutions
Double Materiality Assessment and CSRD
REPORT
Sustainability strategy
WALK
Green claims and sustainability communications
TALK
Who we are
Our people: Your ESG impact
Jaime Santisteban
CEO
Jaime is a sustainability communications expert and business journalist with experience in Spain, France, the UK, and the USA. He has worked for climate solutions company STX, mobility startup Cabify, elite law firm Baker McKenzie and the Press Office of Spain’s President. Executive MBA, Sorbonne Business School.
Ana Karen Zapata
CTO
Ana is an entrepreneur and communications expert passionate about sustainability and innovation. She co-founded and acted as COO of blockchain and climate action firm ClimateTrade. A sought-after speaker and industry figure, Ana spearheads our innovation and technology strategy, driving TransitionX Europe's unique value proposition.
Martina Balazsova
Senior Sustainability Consultant
Martina has 20+ years in sustainability and business development across the globe and served as VP for Global BD and Marketing Director at multinationals Ansell Healthcare and Tenneco. She helps our clients embed sustainability into daily operations and transform it into a catalyst for value and growth. MBA, Solvay Business School
Isidora Bianchi
ESG Director
Jellien Roelofs
EU Green Claims Lawyer
Since 2010, Jellien has navigated the complexities of advertising law. Based in the Netherlands, she empowers clients to navigate the challenging landscape of "greenwashing" and craft impactful, compliant sustainability communications. Jellien's expertise ensures TransitionX clients make confident claims that resonate with consumers and adhere to regulations.
Maria Trikalioti
Project Manager
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Edgar Granell
TransitionX Social Lead (DE&I)
A consultant and trainer, Edgar empowers businesses in people management, HR, equality, and diversity through TransitionX Social. With +15 years of experience across development and consulting projects, he fosters and builds DE&I-committed workplaces with our clients. Edgar boosts our collaboration with public administrations and business associations supporting diversity.
David Bayona
TransitionX Social Lead (DE&I)
WIP
Shiman Lu
Finance Business Partner
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Our partners
TransitionX Europe Advisory Board
Top industry and research figures
Jona Basha
Head of Reporting at Accountancy Europe. Formerly a lecturer at University of Tirana and consultant at PwC
Kevin Dolgin
Co-Founder of Observia. Professor at IAE Paris. MBA from INSEAD.
Bernat Añaños
Co-Founder of Heura Foods, leading Spanish plant-based meat startup present in 22 countries
Elisabeth Albertini
Professor at Université Paris Panthéon-Sorbonne. Formerly a researcher at Autorité des Normes Comptables
Talk to our experts
Ready to elevate your ESG strategy and story?
Our senior advisors will find the right approach for your business.
Partner with us
Are you an organisation in sustainability, technology, innovation or public advocacy and you think we could collaborate?
Careers
We’re rethinking ESG consulting. Take forward impactful projects and grow in a flexible working environment within a top, supportive team We welcome aboard talent from diverse locations and specialisations .
Stay up to date
THOUGHT LEADERSHIP
What CSRD transposition entails for business
By Jaime Santisteban, CEO & Co-Founder of TransitionX Europe | The recent warning from the European Commission highlights the urgency for 17 Member States, including Spain, Czech Republic, Romania and…
Towards high ESG maturity: Milestones and the role of strategic consulting
As ESG standards increasingly redefine business operations, companies across industries are confronting a critical question: where do they stand on the ESG maturity scale, and how can they progress to…
How Europe Faces Critical COP29 and Trump II
As COP29 opens in Baku, Azerbaijan, Europe stands at a crossroads in climate diplomacy. The summit’s focus on global climate goals comes against a backdrop of renewed geopolitical tensions, especially…
What they say about us
TRUSTED TEAM
Maite Diez
International M&A Partner, Baker McKenzie
"Jaime Santisteban demonstrated remarkable business sense and result-oriented performance in strategic communications, consistently adding significant value through his work"
José Lindo
Climate Chain Coalition
"They succeeded in evolving the concept of corporate sustainability through innovation and effective and transparent impact communication"
Neil Salmon
CEO Ansell
"Martina Balazsova developed and executed impactful sustainability and communication programs, providing strategic insights that enhanced market differentiation and supported ambitious organizational goals"