Patrick Diemer, a former CEO of AirPlus and co-founder of business travel organisation BT4Europe, has joined the board of sustainable travel specialist eco.mio.

Diemer’s appointment follows the Berlin-based company’s recent fundraising round which will see eco.mio expand beyond Germany and diversify its products.

Specialing in b2b payments and in helping start-ups and scale-ups, Diemer is also an advisor to US-based sustainable travel company Clarasight and is chair of Business Travel for Europe, the network of 12 European travel buyer associations including VDR in Germany.

“We are delighted to welcome Patrick Diemer to our board,” said eco.mio co-founder and CEO Katharina Riederer. “From the outset, even before eco.mio was founded, Patrick has been instrumental in shaping our direction and expanding our network within the business travel industry.

“His profound industry knowledge and ongoing support have been invaluable. We are truly honoured to have him join us as a board member as we scale our mission in sustainable business travel.”

Diemer added: “Eco.mio offers a much-needed solution for business travel to become greener. Their solution empowers the traveller to take an educated decision in support of sustainability.”

The company provides a browser plug-in that integrates with online booking tools to encourage travellers to make sustainable choices. Eco.mio won the Achievement in Sustainability Innovation category at the first Business Travel Sustainability Awards Europe held by the BTN Group in 2023.