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QuantumLight

quantumlightcapital.com ↗Activity from announced rounds

All recorded activity

QuantumLight is a venture firm founded by Revolut co-founder Nik Storonsky that uses data and AI in its investment process.

Investment approach

QuantumLight is a London venture firm founded by Revolut co-founder Nik Storonsky and led by CEO Ilya Kondrashov. It uses its Aleph AI system to analyse companies and support a systematic investment process.

The firm invests globally across AI, financial technology, enterprise software and health technology. Its portfolio includes Together AI’s computing infrastructure, Factory’s software-development agents and Function Health’s preventive-health platform.

Fundraising and founder support

QuantumLight closed a $500 million second fund in August 2026, according to EU-Startups, which reported that the vehicle was oversubscribed. It followed the firm’s $250 million debut fund, closed in May 2025.

Alongside capital, QuantumLight shares operating playbooks drawn from Storonsky’s experience building Revolut. These cover recruitment, team performance and the systems founders use to scale a company.

Sources
Rounds participated in
6
Confirmed lead rounds
0
1 roles undisclosed
New companies
6
First participation on record · 0 follow-on
Funding in participating rounds
$836M
6 disclosed · full round size, not this investor’s share

By stage

Series B4
Undisclosed2

By primary sector

AI2
Climate tech1
Cybersecurity1
Fintech1
Healthtech1

By country

United States4
Colombia1
United Kingdom1

Rounds

6 in all activity
Arena

Arena evaluates AI models through comparisons and observations of how people use them in real tasks.

$200MSeries B
Participant
Thatch

A health-benefits platform that lets employers set healthcare budgets while employees choose insurance and eligible care to fit their needs.

$108MNew funding
Participant
Gimlet Labs

Provides a cloud inference platform and compiler that distribute AI workloads across different processor types.

$300MSeries B
Participant
Yuno

Yuno connects enterprise merchants, banks and wallets to payment providers, local payment methods and fraud tools through a single API.

$45MSeries B
Participant
Onyx Security

Secure AI control plane for the enterprise.

$113MSeries B
Role not disclosed
Fuse Energy

Fuse Energy generates, trades and supplies energy while developing household energy hardware.

$70MUndisclosed
Participant