Operating Partners

Terra Firma works with a range of operating partners chosen for their knowledge and experience in a particular industry, function or discipline. These individuals provide independent views on the portfolio businesses’ performance as well as insights into specific business sectors and how changing political landscapes might affect potential investments and opportunities in new markets. Please click below to learn more.


  • Lord Birt

    Lord Birt

  • assets/img/content/thumbs/Peter Dixon.jpg

    Peter Dixon

  • Fraser Duncan

    Fraser Duncan

  • assets/img/rupert-gavin.jpg

    Rupert Gavin

  • assets/img/content/thumbs/Stephen-Julius.jpg

    Stephen Julius

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    Ingmar Wilhelm

Ingmar Wilhelm


Ingmar advises Terra Firma on energy and infrastructure-related investments. He previously served as Chairman and CEO of RTR and served on the board of EverPower. He joined Terra Firma in 2014 as a Managing Director to focus on the firm’s investments in renewable energy.

Ingmar joined Terra Firma from Enel Green Power, where he was Executive Vice President and in charge of global business development. He was responsible for a worldwide project pipeline of around 30 GW which was developed with a global team of 180 people.

Ingmar joined the Enel Group in 2003, where he was responsible for the origination and trading of power in Europe. From 2006 onwards, he managed the company’s commercial growth strategy and the entire five million-strong client base on the free market for power and gas supply in Italy with around €10 billion of revenues. Prior to his time at Enel, Ingmar worked with E.ON and Électricité de France. 

He has also served on the boards of directors of several international joint ventures and associations, in particular at EEX, the European Energy Exchange, at Powernext, the French Power Exchange, and at EPIA, the European Photovoltaic Industry Association.

Ingmar holds an MSc in Electrical Engineering from the University of Aachen. In addition to his native German, he speaks English, French and Italian.