Based in London, we're a team of analysts, engineers, scientists and communicators creating practical tools for today's greatest challenge - the energy transition

Abhishek Shivakumar
Head of Solutions Engineering

Adam Mould
Principal Frontend Engineer

Ajita Mishra
Head of Market Development

Alisha Tuladhar
Financial Controller

Anca Chereches
Principal Software Engineer

Angelos Ragkousis
Software Optimisation Engineer

Briony Robertson
Interim Head of People

Charlotte Underwood
Geospatial Data Engineer

Dan Welsby
Senior Energy Systems Modeller

Dani Honeywood
People Operations Associate

Edward Terpilowski-Gill
Senior Model Engineer

Fiona Howarth
Board Chair and Trustee

Geoff Sinclair
Board Trustee

George Ebri
Research Analyst

Grace Mitchell
Senior Data Engineer

Handriyanti Diah Puspitarini
Senior Energy Systems Modeller

Hannah Brennan
Communications and Marketing Manager

Irfan Mohamed
Senior Energy Systems Modeller

Isabella Suarez
Head of Engagement - Southeast Asia

Isabella Söldner-Rembold
Interim Head of Platform

James Edwards
Principal Architect

Joe O’Connor
Head of Machine Learning

Joel Yap
Energy Systems Modeller

John Heal
Principal Data Engineer

Jon Yirrell
Analytics Engineer

Khandekar Mahammad Galib
Junior Data Engineer

Laura O’Neill
Head of People

Madelyn Heldman
Chief of Staff

Mason Phillpott
Senior Data Scientist

Matt Gray
CEO & Co-Founder

Max Santos
Data Scientist

Megan Bates
Senior Software Engineer

Michael Guzzardi
Senior Platform Product Manager

Odette Enricuso
Insights Analyst — Southeast Asia

Robin Brown
Senior Software Engineer

Sabina Parvu
Data Engineer

Stephanie Stevenson
COO

Temiloluwa Olushola
Senior Frontend Engineer

Thomas King
Senior Software Engineer

Thomas Kouroughli
Head of Product

Udit Gandhi
Board Trustee

Verity Crane
Heavy Industry Lead
Company values
As an impact-led technology company, our values help us collaborate and create work that drives change.
We are all responsible for delivery at TransitionZero. We move fast but without sacrificing quality through discipline, professionalism and focus.
The energy transition is a complex challenge. Cross-functional collaboration and honest communication help us deliver ambitious, impactful work.
Our mission demands speed and scale. This requires resilience backed up by a positive, inclusive culture where we all feel valued and empowered to speak up.
Intelligence isn’t just about IQ. We value curiosity, adaptability, and creative problem-solving. We all have unique skills and are willing to learn from each other so we can grow together.

