Investing Profile

Jan Hammer

VCInvestorAngel
General Partner at Index Ventures
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Index Ventures General Partner
$100K - $50.0M
$15.0M
115
$1.2B
CompanyStageDateRound SizeTotal Raised
Moment
Series CMay 2026$78M
Series BJul 2025$36M
$140M
Co-investors: David Haber (Andreessen Horowitz), Marc Andrusko (Andreessen Horowitz), Justin Overdorff (Lightspeed Venture Partners), Jason Calacanis (Sequoia Capital), Ali Partovi (Minttown), Nick Beim (Venrock), Chris DeVore (Founders' Co-op), Andy Dunn (Red Swan Ventures), Alexandra Prosszer (Btomorrow Ventures), Henry Kravis
Adfin
Series AMay 2026$18M
SeedJul 2024$5M
$23M
Co-investors: Robert Jäckle (Visionaries Club), Robert Lacher (La Famiglia)
Cowboy Space
Series BMay 2026$280M
Series AApr 2025$50M
$330M
Co-investors: Tim Draper (Draper Associates), Jared Leto
Alan
Series UnknownMar 2026$120M
Series EMay 2022$190M
Series DApr 2021$220M
Series CApr 2020$54M
Series BFeb 2019$45M
Series AApr 2018$28M
$670M
Co-investors: Tom Stafford (DST Global), Hélène Falchier (Portage Ventures), Romain Lavault (Partech Ventures), Xavier Niel (Iliad / Free), Tobias Lutke
Duna
Series AFeb 2026$35M
SeedMay 2025$12M
$47M
Co-investors: Alex Nichols (CapitalG), Jeanne DeWitt Grosser (Operator Collective), Adriaan Mol (Stash Ventures), Claire Hughes Johnson, Akshay Kothari, Gloria Baeuerlein, Guillaume Princen, Hanno Renner, Jean Charles Samuelian, Job van der Voort, Alexandre Prot
Duvo
SeedDec 2025$15M
$15M
Harmonic
Series CNov 2025$120M
Series BJul 2025$100M
Series ASep 2024$75M
$300M
Co-investors: Shaun Maguire (Sequoia Capital), Andrew Reed (Sequoia Capital), Nick Shalek (Ribbit Capital), Ilya Fushman (Kleiner Perkins), Charlie Cheever, Jared Leto
Mistral AI
Series CSep 2025$2B
SeedJun 2023$110M
$3.1B
Co-investors: Quentin Clark (General Catalyst), Paul Murphy (Lightspeed Venture Partners), Hemant Taneja (General Catalyst), Anjney Midha (Andreessen Horowitz), Jeannette zu Fürstenberg (General Catalyst), Antoine Moyroud (Lightspeed Venture Partners), Ana Levine (E1 Ventures), Eric Schmidt (Innovation Endeavors), Guillaume Houzé (Motier Ventures), Nicolas Essayan (Motier Ventures), Xavier Niel (Iliad / Free), Christian Miele (Headline (formerly e.ventures)), Martin A Cabrera (Quassar Capital), Anjney Midha