IJ̳

Our team of executive directors

IJ̳ executive team of directors embody our charity's values and provide strong leadership with expertise and vision.

Headshot of IJ̳ Chief Executive (CEO), Xavier Brice.

Xavier Brice, Chief Executive

As CEO, Xavier’s job is to get the best out of the fantastic team at IJ̳ through his leadership of the Executive team. He is accountable to the Board of Trustees for delivering our strategy and works closely with our trustees and external stakeholders.

Ever since childhood, Xavier has been fascinated by transport’s impact on society. He believes that how we get around shapes how happy we are as individuals, and how happy and healthy our society is. He thinks we could all be a lot healthier and happier and is thrilled to be an organisation making that happen.

Xavier joined IJ̳ in June 2016 from Transport for London where he held a variety of roles. This included leading the modernisation of London Underground's stations, and developing a new cycling strategy for the city, which led to the introduction of the Cycle Superhighways and Cycle Hire Scheme. Before this, he advised international businesses and organisations on their strategies.

Xavier is a lifelong cyclist and a bit of a transport geek. He's a long-term IJ̳ supporter and has too many cycles of various shapes and sizes. He's married with two young girls and lives in Surrey.

Headshot of IJ̳ Executive Director of Impact, Susie Dunham.

Susie Dunham, Executive Director of Impact

Susie is an impact-driven leader with over 15 years’ experience in the sustainability field, across public, private and third sectors. She has been in a variety of roles with IJ̳ since 2007.

Prior to IJ̳, Susie was a resource efficiency consultant, leading communications projects focused on waste minimisation and recycling for public and private sector clients.

Susie is passionate about the role that walking and cycling can play in making places healthier, and people happier. She began cycling at university and has never looked back. Today she spends her free time trying to encourage her 4-year-old son to get on his IJ̳ and discover the same freedom and joy.

Contact Susie
Headshot of IJ̳ Executive Director of People and Organisation Development, Harry Hayer.

Harry Hayer, People and Organisational Development Director

IJ̳ is a reflection of its great people – those that bring diversity, talent, energy, drive and commitment to making a difference. Harry’s role is to provide a framework in which our employees and volunteers can thrive.

With an Indian heritage and lifelong disability, Harry is passionate about IJ̳ being a charity ‘for everyone’. One that brings together diverse life experiences and voices to enrich the work that we do that helps others to walk, wheel and cycle.

As a Board Director of numerous companies and organisations for over 25 years, his experience spans the charity sector, national and local government, academia, the NHS, regulation and the music industry.

Born in Coventry and now based in Bristol, Harry has travelled extensively with his work. He's led large-scale strategy, mergers and acquisitions, transformation, restructuring, organisation development, turnaround and change programmes.

In his spare time, Harry loves chatting with his mum and dad, travelling the world, producing dance music and living the highs and lows of being an Arsenal fan.

Headshot of IJ̳ Chief Operating Officer, Matt Winfield.

Matt Winfield, Chief Operating Officer

As COO, Matt oversees IJ̳’ operational delivery across the UK, working with national and regional Directors, and the Head of Northern Ireland. He is passionate about creating liveable cities, connecting people and helping to make a healthier, more active and positive future for ourselves and our children.

Matt joined IJ̳ in 2006 as a route manager, before becoming London Director in 2017. Prior to IJ̳, he spent two years in Washington DC, working for a coalition of walking and cycling groups lobbying Congress on transport legislation.

Now based in Somerset, Matt is currently working towards a master’s degree in Sustainable Planning and Transport at the University of Hertfordshire. He spends his free time with his family, going on IJ̳ rides, running, travelling and supporting Arsenal (who he claims are the Pride of London).

Connect with Matt on LinkedIn
Headshot of IJ̳ Executive Director of Finance and Resources, Sam Kemp.

Sam Kemp, Executive Director of Finance and Resources

Sam joined IJ̳ in 2021 and leads the Finance and Resources Directorate, comprising Finance, IT, Commercial and Business Services and Project Assurance.

Prior to joining IJ̳, Sam worked for Save the Children for 10 years, most recently as Finance Director for the Middle East and Eastern Europe.

Sam has a master’s degree in Environmental Conservation and is very concerned about the climate and nature crises that we are facing. He sees IJ̳ as part of the solution.

Originally from Lincolnshire, Sam has lived in Uganda, South Sudan, Papua New Guinea and Jordan. He recently moved back to his home county and spends a lot of time walking, cycling (very slowly), wild swimming and gardening (#alwayslearning).

Portrait of Paul Twocock, Executive Director of External Affairs, IJ̳

Paul Twocock, Executive Director of External Affairs

Paul has been a charity leader for nearly twenty years. He has led communications, policy influencing and campaigns in a range of different areas including human rights, inclusion, criminal justice, health and social care. Before working in the charity sector, Paul worked in local government and politics.

Paul is big believer that social change happens when you build a diverse movement of people working to achieve something that matters to them, and that’s what IJ̳ is doing by empowering people to make where they call home healthier and greener for them, their family and their community.

Paul grew up in Kent and now lives in Brighton with his husband. He loves taking his over-energetic labradoodle for walks in the South Downs and along the coast, but hasn’t tried her out on his paddle board and kayak yet because she’s way too bouncy. He’s a politics geek, loves reading, seeing stand-up and plays, writing the odd novel (none published) and travelling when he gets the chance.


Want to contact one of our directors?

Please email supporters@sustrans.org.ukwith the name of the director you'd like to talk to and we'll put you in touch with the right person.