William Lese
InvestorManaging Partner at Braemar Energy Ventures · Chief Compliance Officer at Aquarian Holdings · Board director at Sirrus · Board director at Ioxus
New York, New York, United States
About
Co-founded Braemar in 2003 and leads the firm's power, resources, and infra-tech investing. He has over 30 years in energy innovation, was previously a partner at Mantis Holdings and an early member of Sithe Energies, and holds an MS in Applied Energy Science and a BA in Physics from NYU.
Contact· self-published, not guessed
Board director at Sirrus
Intro paths
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In turn, William can intro founders to Sirrus's investors below.
Sirrus's investors · 4
Co-founders at Sirrus
BM
Bernard MalofskyExecutive Officer
Board director at Ioxus
Intro paths
→
In turn, William can intro founders to Ioxus's investors below.
Experience
- Aquarian HoldingsChief Compliance Officercurrent2025 — presentNew York, New York, United States
- SchonfeldCompliance Consultant2023 — 2024New York, New York, United States
- Nearwater CapitalCompliance Consultant2023New York, New York, United States
- Guggenheim PartnersChief Compliance Officer2020 — 2023New York, New York, United States
- Guggenheim PartnersManaging Director, Head of Transactional Compliance2018 — 2023New York, New York, United States
- Intertrust GroupHead of Capital Markets Americas2014 — 2018New York, New York, United States
- Intertrust GroupHead of Intertrust SPV2011 — 2014George Town, Cayman Islands
- Morgan StanleyExecutive Director, Fixed Income2009 — 2011New York, New York, United States
- Morgan StanleyExecutive Director, Legal Department2004 — 2009New York, New York, United States
- Morgan StanleyVice President, Legal Department2003 — 2004Tokyo, Japan
- Commerzbank AGSenior Legal Counsel2000 — 2003Tokyo, Japan
- DentonsAssistant Solicitor1998 — 2000Tokyo, Japan
- DentonsTrainee Solicitor1997 — 1998London Area, United Kingdom
Skills & more
Securities9Investments13Private Equity16Corporate Law10Legal Advice1Equities7Capital Markets11Hedge Funds3Trading2Joint Ventures1Fixed Income3Structured Finance2
+2 more
FinanceBankruptcy- Series 24 — FINRA
- Series 7 — FINRA
- Securities Industry Essentials (SIE) — FINRA
From William's professional profile.
Deals · 2
Utility AssociatesBoard seat
via Braemar Energy Ventures · filed Jun 2018 · $4.8M raise
IoxusBoard seat
via Braemar Energy Ventures · filed Jun 2015 · $3.6M raise
Attribution from SEC filings, press coverage, and firm rosters.
Colleagues at Braemar Energy Ventures
Ben Rogers
Venture Partner at Braemar Energy Ventures
Carsten J. Reinhardt
Strategic Advisory Board member at Braemar Energy Ventures
Dennis R. Costello
Partner at Braemar Energy Ventures
Diane Bao
Associate at Braemar Energy Ventures
Don Tappan
Principal at Braemar Energy Ventures
Dorothea Bersani
Chief Administrative Officer at Braemar Energy Ventures
Emily Reichert
Strategic Advisory Board member at Braemar Energy Ventures
Eric A. Schultz
Chief Financial Officer at Braemar Energy Ventures
Frequently asked questions
- Who is William Lese?
- Co-founded Braemar in 2003 and leads the firm's power, resources, and infra-tech investing. He has over 30 years in energy innovation, was previously a partner at Mantis Holdings and an early member of Sithe Energies, and holds an MS in Applied Energy Science and a BA in Physics from NYU.
- Where does William Lese work?
- William Lese is Managing Partner at Braemar Energy Ventures and Board director at Sirrus and Board director at Ioxus.
- What boards does William Lese sit on?
- William Lese holds tracked board seats at Ioxus, Utility Associates.
- Where did William Lese go to school?
- William Lese studied at University of Bristol (Legal Practice Course, Law); University of Bristol (Bachelor of Laws (LL.B.), Law).
Same school
Also attended University of Bristol239
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Shared employers
Also worked at Schonfeld8
Jon HerrickChief Compliance Officer at Aquarian HoldingsJennifer CohenChief Human Resources Officer at Point72Dan LotaGlobal Head of Trading at Point72Ian DominguezPrincipal at Delta Emerald VenturesNistha LohaniAssociate, Venture & Growth at Galvanize Climate SolutionsPatrick BeattyDr. at Beyond Earth Ventures
+ 2 more
Also worked at Nearwater Capital1
Also worked at Guggenheim Partners113
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