Investing Profile

Jan Hammer

VCInvestorAngel
Partner at Index Ventures
indexventures.com/team/jan-ha...United Kingdom
Photo of Jan Hammer, Partner at Index Ventures
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Networks Jan is a member of
University of Oxford Network
421 CONNECTIONS
Index Ventures Network
69 CONNECTIONS
Robinhood Network
47 CONNECTIONS
Mistral AI Network
23 CONNECTIONS
Harmonic Network
13 CONNECTIONS

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Current Investing Position
Index Ventures Partner
Investment Range
$100K - $50.0M
Sweet Spot
$15.0M
Investments On Record
118
Current Fund Size
$1.2B

Jan Hammer is on these Sector & Stage Rankings

Jan Hammer's Investments On Record (49)

CompanyStageDateRound SizeTotal Raised
Alan
Secondary MarketJun 2026
Series GJun 2026$550M
Series UnknownMar 2026$120M
Series EMay 2022$190M
Series DApr 2021$220M
Series CApr 2020$54M
Series BFeb 2019$45M
Series AApr 2018$28M
$1.2B
Co-investors: Hélène Falchier (Portage Ventures), Romain Lavault (Partech Ventures), Xavier Niel (Iliad), Tom Stafford (DST Global), Tobias Lutke
Behavox
Private EquityJun 2026$170M
Series BNov 2017$20M
$360M
Co-investors: Hussein Kanji (Unknown Ventures), Steve Kuo (Hercules Capital), Munish Varma (SoftBank Investment Advisers), Mike Collett (Promus Ventures)
Moment
Series CMay 2026$78M
Series BJul 2025$36M
$140M
Co-investors: David Haber (Andreessen Horowitz), Chris DeVore (Founders' Co-op), Andy Dunn (Red Swan Ventures), Alexandra Prosszer (Btomorrow Ventures), Jason Calacanis (Uber), Ali Partovi (Airbnb, Convoy, Facebook, Uber, Zappos, etc), Marc Andrusko (Oak HC/FT), Justin Overdorff (Kamanu Ventures & Lightspeed Venture Partners Scout), Nick Beim (Venrock), Henry Kravis
Adfin
Series AMay 2026$18M
SeedJul 2024$5M
$23M
Cowboy Space
Series BMay 2026$280M
Series AApr 2025$50M
$330M
Co-investors: Tim Draper (Draper Associates), Jared Leto
Duna
Series AFeb 2026$35M
SeedMay 2025$12M
$47M
Co-investors: Job van der Voort (Remote First Capital), Alex Nichols (CapitalG), Jeanne DeWitt Grosser (Operator Collective), Gloria Baeuerlein (Puzzle Ventures), Guillaume Princen (Mooncard), Jean Charles Samuelian (Mistral AI), Alexandre Prot (Qonto), Adriaan Mol (Spacetime), Akshay Kothari (Sdl Ventures), Hanno Renner, Claire Hughes Johnson
Duvo
SeedDec 2025$15M
$15M
Harmonic
Series CNov 2025$120M
Series BJul 2025$100M
Series ASep 2024$75M
$300M
Co-investors: Nick Shalek (Ribbit Capital), Andrew Reed (Sequoia Capital), Shaun Maguire (Sequoia Capital), Ilya Fushman (Kleiner Perkins), Charlie Cheever (Export Development Canada | Exportation et développement Canada), Jared Leto

Jan Hammer's Experience

Board Member RobinhoodPresent
Board Member CollibraPresent
Investor SafetyCulturePresent
Board Member CapitolisPresent
Board Member AlanPresent
Board Member ComplyAdvantagePresent
Board Observer DuffelPresent
Board Member Resistant.AIPresent
Board Observer RemotePresent
Board Member Rohlik.czPresent
Investor AtlarPresent
Investor Tema ETFsPresent
Investor Mistral AIPresent
Board Member ApronPresent
Board Observer HarmonicPresent
Investor TebiPresent
Board Observer ValderaPresent
Co-Chair of CEEPAC Acquisition Committee TatePresent
Investor Cowboy SpacePresent
Investor DunaPresent
Board Observer SpikoPresent
Board Member MomentPresent
Board Observer duvo.aiPresent
Board Observer ParallelPresent
Partner Index VenturesPresent

Jan Hammer's Education

University of Oxford MA Philosophy, Politics and Economics

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