Investing Profile

Jan Hammer

VCInvestorAngel
General Partner at Index Ventures
indexventures.com/team/jan-ha...United Kingdom
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Current Investing Position
Index Ventures General Partner
Investment Range
$100K - $50.0M
Sweet Spot
$15.0M
Investments On Record
100
Current Fund Size
$1.2B

Jan Hammer is on these Sector & Stage Rankings

Jan Hammer's Investments On Record (43)

CompanyStageDateRound SizeTotal Raised
Duvo
SeedDec 2025$15M
$15M
Harmonic
Series CNov 2025$120M
Series BJul 2025$100M
Series ASep 2024$75M
$300M
Co-investors: Andrew Reed (Sequoia Capital), Nick Shalek (Ribbit Capital), Ilya Fushman (Kleiner Perkins), Jared Leto, Charlie Cheever
Mistral AI
Series CSep 2025$2B
SeedJun 2023$110M
$3.1B
Co-investors: Paul Murphy (Lightspeed Venture Partners), Antoine Moyroud (Lightspeed Venture Partners), Anjney Midha (Andreessen Horowitz), Jeannette zu Fürstenberg (General Catalyst), Ana Levine (E1 Ventures), Guillaume Houzé (Motier Ventures), Nicolas Essayan (Motier Ventures), Eric Schmidt (Innovation Endeavors), Xavier Niel (Kima Ventures), Christian Miele (Headline (formerly e.ventures)), Martin A Cabrera (Quassar Capital), Anjney Midha
Moment
Series BJul 2025$36M
$63M
Co-investors: David Haber (Andreessen Horowitz), Marc Andrusko (Andreessen Horowitz), Ali Partovi (Neo), Chris DeVore (Founders' Co-op), Andy Dunn (Red Swan Ventures), Jason Calacanis (LAUNCH), Alexandra Prosszer (Btomorrow Ventures), Henry Kravis
Tebi
Series BJun 2025$34M
Series AOct 2024$22M
$56M
Co-investors: Alex Nichols (CapitalG)
Duna
SeedMay 2025$12M
$12M
Co-investors: Jeanne DeWitt Grosser (Operator Collective), Adriaan Mol (Stash Ventures), Hanno Renner, Jean Charles Samuelian, Job van der Voort, Alexandre Prot, Claire Hughes Johnson, Gloria Baeuerlein, Akshay Kothari, Guillaume Princen
Aetherflux
Series AApr 2025$50M
$50M
Co-investors: Tim Draper (Draper Associates), Ana Levine (E1 Ventures), Jared Leto
Apron
Series BSep 2024$29M
Series ASep 2023$15M
$50M
Co-investors: Robert Jäckle (Visionaries Club), Tony Fadell (Future Shape)