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Thomas Visan

Investor

Partner at Sienna Venture Capital

Paris, Île-de-France, France

Find your path to Thomas

43 people in our graph share verified history with Thomas — schools, employers, funds. One of them is your warm intro.

Roi Bar-KatunlockedThomas: together at Dust Photonics (2024–2026)
×2Thomas: together at Seemplicity
×2Thomas: together at Hourly
×7Thomas: together at ESCE International Business School

About

Thomas Visan is a Partner at Sienna Venture Capital, working on early growth and growth-stage investments in cybersecurity, digital health, and artificial intelligence, and sits on the boards of several portfolio companies. He has more than ten years of venture capital experience, including time at La Maison Partners where he helped set up five funds and led 40 investments across Europe, the US, and Israel. He started his career at the private equity firm Zilkha Investments in New York.

Contact· self-published, not guessed

Invests in

AI & Machine LearningCybersecurityDigital Health

Experience

  1. SeemplicityBoard Membercurrent2025 — present
  2. DustPhotonicsBoard Membercurrent2024 — present
  3. HourlyBoard Membercurrent2024 — presentSan Francisco Bay Area
  4. Sienna Venture CapitalPartnercurrent2022 — presentVille de Paris, Île-de-France, France
  5. La Maison Holding CompanyInvestment Manager / Directeur de Participations2015 — 2022
  6. Zilkha InvestmentsAssociate2015Greater New York City Area

Skills & more

Corporate Finance9Venture Capital3Private Equity3Start-ups2Investments1Entrepreneurship1FundingSocial Media1Training1Public Relations1Business Strategy1Project Management1
+8 moreSungard GMItechforpurposeStrategyManagementCommunication SkillsEnglishPublic SpeakingPowerPoint

Languages English · French · Spanish

From Thomas's professional profile.

Colleagues at Sienna Venture Capital

Clara de Maubeuge
Executive Assistant at Sienna Venture Capital
Inès Mas
Associate at Sienna Venture Capital
Isabelle Amiel
Founder and Managing Partner at Sienna Venture Capital
Mikael Pereira
Partner at Sienna Venture Capital
Paul-Louis Bisbarre
Senior Analyst at Sienna Venture Capital
Yong Sun
Managing Director, Ping An Capital at The Yield Lab Asia Pacific

Frequently asked questions

Who is Thomas Visan?
Thomas Visan is a Partner at Sienna Venture Capital, working on early growth and growth-stage investments in cybersecurity, digital health, and artificial intelligence, and sits on the boards of several portfolio companies. He has more than ten years of venture capital experience, including time at La Maison Partners where he helped set up five funds and led 40 investments across Europe, the US, and Israel. He started his career at the private equity firm Zilkha Investments in New York.
Where does Thomas Visan work?
Thomas Visan is Partner at Sienna Venture Capital.
What does Thomas Visan invest in?
Thomas Visan invests in AI & Machine Learning, Cybersecurity, Digital Health.
Where did Thomas Visan go to school?
Thomas Visan studied at Berkeley College (International Finance); ESCE International Business School (Master 2, International Business/Trade/Commerce).

Same school

Shared employers