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
105
Current Fund Size
$1.2B

Jan Hammer is on these Sector & Stage Rankings

Jan Hammer's Investments On Record (46)

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: Antoine Moyroud (Lightspeed Venture Partners), Anjney Midha (Andreessen Horowitz), Paul Murphy (Lightspeed Venture Partners), 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
Spiko
Series AJul 2025$21M
$25M
Co-investors: Anthony Danon (Cocoa), Arthur Bernard (Athletico Ventures), Valentine Barbelivien (Founders Future), Harsh Sinha, Frederic Montagnon, Jean Charles Samuelian, Adrien Montfort, Valentine Baudouin
Moment
Series BJul 2025$36M
$63M
Co-investors: Marc Andrusko (Andreessen Horowitz), David Haber (Andreessen Horowitz), Ali Partovi (Neo), Chris DeVore (Founders' Co-op), Andy Dunn (Red Swan Ventures), Jason Calacanis (LAUNCH), Alexandra Prosszer (Btomorrow Ventures), Nick Beim (Venrock), 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), Akshay Kothari, Gloria Baeuerlein, Guillaume Princen, Hanno Renner, Jean Charles Samuelian, Job van der Voort, Alexandre Prot, Claire Hughes Johnson
Aetherflux
Series AApr 2025$50M
$50M
Co-investors: Tim Draper (Draper Associates), Ana Levine (E1 Ventures), Jared Leto