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Proxima Fusion
Founded
2023
Status
Private
Leadership
Francesco Sciortino - Co-Founder & CEO
Lucio Milanese - Co-Founder & COO
Jorrit Lion - Co-Founder & Chief Scientist
Martin Kubie - Co-Founder & Chief Engineer
LSVP Investment
2025
Stage Invested
Series A
Lightspeed Team
Paul Murphy - Partner

We are Europe’s fastest-growing fusion startup, building the first generation of fusion power plants using quasi-isodynamic (QI) stellarators—the clearest, most robust path to putting fusion on the grid.

Proxima Fusion
Fraction Fraction

Faction Ventures, L.L.C. ("Faction") and Lightspeed Management Company, L.L.C. ("LSVP") are separate businesses that operate independently of each other. Faction advises its own fund(s) and does not advise any LSVP clients, and LSVP does not advise Faction or any of its clients. LSVP and Faction are parties to an agreement pursuant to which LSVP holds certain interests in Faction and the fund(s) Faction manages.

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INDIA INDIA

Lightspeed Management Company, L.L.C. ("LSVP") and Lightspeed India Partners, L.L.P. ("LSIP") are distinct investment advisory entities, are not a unitary enterprise and operate independently of one another. From time to time LSVP may draw on its relationship with LSIP, and vice versa, but only to the extent consistent with its status as a separate investment adviser.

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Lightspeed Management Company, L.L.C. ("LSVP") and LSIP are distinct investment advisory entities, are not a unitary enterprise and operate independently of one another. From time to time LSVP may draw on its relationship with LSIP, and vice versa, but only to the extent consistent with its status as a separate investment adviser.

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When changing this filter to include “LSIP”, you will view personnel associated with Lightspeed India Partners, L.L.P ("LSIP")Lightspeed Management Company, L.L.C. ("LSVP") and LSIP are distinct investment advisory entities, are not a unitary enterprise and operate independently of one another. From time to time LSVP may draw on its relationship with LSIP, and vice versa, but only to the extent consistent with its status as a separate investment adviser.

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