Tomas Kemtys is a General Partner at Contrarian Ventures, a London-based climate technology venture firm he co-founded. See sector focus and contact routes.
Tomas Kemtys is a General Partner at Contrarian Ventures, a London-based climate technology venture firm he co-founded in 2017, where he manages the full spectrum of fund operations from deal execution to founder events. Before launching the firm, he spent six years in investment banking at Centerview Partners, BNP Paribas, and Société Générale, executing over $6 billion in global transactions across power and utilities. Contrarian Ventures targets pre-seed and seed-stage climate tech companies in Europe and Israel, with a thesis centered on decarbonization in energy, transportation, industry, and the built environment. The firm typically invests €1 million to €4 million per deal, often leading rounds with first checks of €1.5–€2 million at Seed and €2–€4 million at Series A. Kemtys has personally led investments in notable portfolio companies including Zoomo, SunStore, and Beebop. Beyond investing, he serves as a long-standing board member of the Lithuanian Venture Capital Association and actively advises family offices while participating in the broader tech ecosystem.
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