team

Our team

At Cleantech Group, we provide research, consulting and events to catalyze opportunities for sustainable growth powered by innovation. We bring clients access to the trends, companies and people shaping the future and the customized advice and support businesses need to engage external innovation.

Céline Jullien
Céline Jullien
director
Céline leads the Cleantech for France initiative, building up a coalition of cleantech and policy leaders to scale up sustainable innovation in France. Before joining Cleantech Group, Céline spent 10 years across Europe as executive officer at EIT InnoEnergy, the EU’s largest energy accelerator. She began her career in academics, as professor in economics, teaching industrial organisation and leading research on electric power market design at Grenoble INP Génie Industriel. She holds a Ph.D. in economics from Grenoble Alpes University.
Tristan Beucler
Tristan Beucler
policy analyst
Tristan works as policy analyst for the Cleantech for France initiative. Before joining Cleantech Group, he worked on international trade policy at the European Parliament and on international energy policy and decarbonization at the German Federal Foreign Office. Tristan lives in Paris and has previously lived in
North Carolina, Berlin, and Brussels. He holds a Master’s degree in European Affairs from Sciences Po and a Master’s degree in Political Science from the Freie Universität in Berlin, as well as a History degree from the Sorbonne.
Initiated by
cleantech group logo
At Cleantech Group, we provide research, consulting and events to catalyze opportunities for sustainable growth powered by innovation. We bring clients access to the trends, companies and people shaping the future and the customized advice and support businesses need to engage external innovation.

The company was established in 2002 and is headquartered in San Francisco with people based in London, Paris and Boston.
With the support of
breakthrough energy logo
Established in 2015 by Bill Gates and a coalition of private investors concerned about the impacts of accelerating climate change, Breakthrough Energy supports the innovations that will lead the world to net-zero emissions. We are building on the proven model of public-private partnerships that Gates has already used to transform health, education, and public welfare around the world.

Breakthrough Energy is a network of entities and initiatives, including investment funds, nonprofit and philanthropic programs, and policy efforts linked by a common commitment to scale the technologies we need to achieve a path to net zero emissions by 2050.

We are encouraging the development of new net-zero energy technologies, championing policies that speed innovation from lab to market, and bringing together governments, research institutions, private companies, and investors to expand and enhance clean-energy investment.