The people behind the orbit.

Three partners. One program. Builders first, investors second. We back founders we'd want to work with ourselves. Jupiter Base's partners bring discipline, judgment, operating instinct, capital experience and ambition to every startup orbiting Jupiter Base.

Fernando Nieto

Fernando Nieto

Co-founder · Partner

Fernando Nieto is a Partner at Jupiter Base, a founder, mentor and business strategist focused on early-stage entrepreneurship, founder development and business model execution. He brings a practical operator’s lens on founder selection, venture building and the discipline required to turn early-stage projects into investable companies.

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Jaime Pesquera

Jaime Pesquera

Co-founder · Managing Partner

Jaime Pesquera is the Managing Partner of Jupiter Base. Jaime is a startup General Counsel, entrepreneur and builder focused on artificial intelligence, venture capital and early-stage companies. At Jupiter Base, Jaime brings a combination of legal expertise, capital markets experience, AI fluency and founder-level execution.

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Marcos Cabezón

Marcos Cabezón

Co-founder · Partner

Marcos Cabezón is a Partner at Jupiter Base, a founder, investor and startup operator with deep experience across Spain’s early-stage technology ecosystem. At Jupiter Base, he brings a rare combination of entrepreneurial track record, capital allocation experience and deep connectivity within the Spanish startup ecosystem.

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