Index Ventures

Activity from announced rounds

Activity in this selectionJul 31, 2026 · AI · Jul 1, 2026

Index Ventures invests across technology sectors from seed through venture and growth, with teams in San Francisco, New York and London.

The firm publishes practical research for founders through Index Press. Its resources address three distinct scaling decisions: structuring employee stock options, building an organisation as headcount expands and entering the US market.

OptionPlan, TeamPlan and ExpansionPlan accompany the research with planning tools. These resources are particularly useful when fundraising is tied to hiring, opening a US operation or redesigning compensation as a company moves beyond its founding team.

Sources
Rounds participated in
7
Confirmed lead rounds
—
7 roles undisclosed
New companies
7
First participation on record · 0 follow-on
Funding in participating rounds
$2.5B
7 disclosed · full round size, not this investor’s share

By stage

Seed2
Series A2
Series C+2
Series B1

By primary sector

AI3
Biotech1
Fintech1
Hardware1
Robotics1

By country

United States6
United Kingdom1

Rounds

7 in this selection
Simile

Simulated users for marketing and product research

$200MSeries B
Role not disclosed
Enigma

Research lab developing intuitive interfaces for robots

$71MSeed
Role not disclosed
Fireworks

Platform for specialized intelligence enabling companies to train and serve custom models

$1.5BSeries D
Role not disclosed
Feathery

AI operating and decisioning system for financial services

$30MSeries A
Role not disclosed
Chai Discovery

Building AI models to accelerate pre-clinical drug discovery

$400MSeries C
Role not disclosed
Oratomic

Builds quantum computers using lasers to hold individual atoms in place

$300MSeries A
Role not disclosed
Marker

Provides AI-powered writing tools for writers

$13MSeed
Role not disclosed