May 2026 Startup Funding Report

47 European funding rounds and $4.1B disclosed. Isomorphic Labs leads the edition; explore the companies, investors and stage breakdown.

· RoundOS Funding
May 1–May 31, 2026 · 47 announced rounds
47Funding rounds
$4.1BDisclosed capital · 47 rounds
$20MMedian disclosed round
01 / The takeaways

The month in funding

01

Isomorphic Labs leads disclosed funding

Its $2.1B round represents 52% of the $4.1B disclosed across this edition. UK-based AI-first drug design and development company.

02

Software: 8 rounds

Avrea, ClearOps, Didit are among the companies in the most active sector by number of rounds in this edition.

03

29 early-stage rounds

Pre-seed, seed and Series A account for 29 of the 47 announcements. These rounds total $461.5M in disclosed funding.

02 / Capital allocation

Funding by sector

Compare disclosed funding by the companies’ primary sector.

Explore the underlying rounds
Where capital wentDisclosed funding · USD
Healthtech$2.3B
7 rounds
Deeptech$452.2M
6 rounds
Fintech$370.6M
4 rounds
AI$229.4M
5 rounds
Software$206.5M
8 rounds
Space$144.4M
2 rounds
Travel$113M
2 rounds
Gaming$70M
1 round
Cybersecurity$62.3M
4 rounds
Hardware$52.6M
2 rounds
Legaltech$50M
1 round
Foodtech$22.1M
2 rounds
Marketing$10.8M
2 rounds
Edtech$1.4M
1 round
Beyond the headline

Take out the three biggest rounds.

The remaining capital went to smaller rounds. Compare the totals before and after removing the three largest deals.

All disclosed funding$4.1B
Without the top three$1.6B
May 1–May 31, 2026
03 / Standout rounds

Largest funding rounds

01
Series B · Healthtech

Isomorphic Labs

UK-based AI-first drug design and development company.

Led by Thrive Capital
$2.1B
02
Series B · AI

Fractile

Fractile designs and builds AI compute systems and processors for frontier model inference.

$220M
03
Series B · Deeptech

QuantWare

QuantWare engages in designing, developing, and fabricating hardware to enable quantum computing.

€152M
04 / Market structure

Stages & geography.

By stage

StageRoundsCapitalMedian
Series C+6$688.6M$115M
Pre-seed7$17.9M$2.3M
Series A15$406.8M$16M
Series B10$2.9B$55M
Seed7$36.8M$4M
Growth2$62.3M$31.2M

By country

CountryRoundsCapitalMedian
Ireland1$110M$110M
Spain6$154.3M$2.3M
France6$149M$17.5M
Switzerland3$40.2M$4.4M
United Kingdom13$2.8B$30M
Lithuania1$2.3M$2.3M
Germany5$153.7M$14M
Italy3$163M$55M
Finland2$16.3M$8.2M
Belgium1$20.4M$20.4M
Austria1$2.9M$2.9M
Norway1$16M$16M
Netherlands2$252.6M$126.3M
Poland1$75M$75M
Türkiye1$70M$70M
05 / Investors

Most active investors in this edition

Investor activity in the selected funding rounds
InvestorRoundsLedRecent investments
01Accel50PercepticPrimer
02Balderton Capital30GeordiePrimer
03Bek Ventures30VIKTORViktor
04Eurazeo30FonoaOlyzon
05Alex Bouaziz20VIKTORViktor
06British Business Bank20EllipticQuantum Motion
07Cal Henderson20VIKTORViktor
08Forestay Capital20FonoaPivot
09Founderful20Stellar AlpinaAVIAN
10General Catalyst20GeordieLucis
06 / The full selection

All funding rounds

CSV
Filters & sort
Reset

47 rounds · $4.1B disclosed · $20M median

Startup funding rounds
CompanyAmountStage / sectorLead investorAnnounced
Fonoa

A provider of global tax infrastructure that automates indirect tax calculation, e-invoicing, tax ID validation, and tax return filing for e-businesses.

$110MSeries C+
Fintech
—
Mafer AI

Barcelona-based startup building an AI operating system for R&D teams in formulation industries.

€2MPre-seed
AI
—
MokN

MokN, a Paris-based startup, is turning the tide on identity theft with its innovative “phish-back” technology. Its ultra-realistic honeypots trick hackers into exposing stolen login details before any damage can be done.

$15MSeries A
Cybersecurity
—
NUCLIDIUM

Swiss clinical-stage biotechnology company pioneering the development of next-generation copper-based radiopharmaceuticals for the diagnosis and treatment of cancer.

CHF 26MSeries B
Healthtech
—
Didit

a company that develops identity verification and fraud prevention infrastructure.

€6.4MSeed
Software
—
Geordie

UK-based provider of a developer of an agent-native security platform.

$30MSeries A
Cybersecurity
—
Kopa.ai

an agentic AI platform for e-commerce teams.

€2MSeed
AI
—
Mathew

the edtech startup specializing in artificial intelligence for teachers and students.

€1.2MSeed
Edtech
—
Orbital Industries

London-based company developing industrial hardware and infrastructure using AI-driven engineering and materials discovery systems.

$50MSeries B
Hardware
—
Perceptic

Perceptic’s platform strives to unify asset scouting, scientific evaluation and clinical data foundations on a shared intelligence layer.

$12MSeed
Software
—
Stellar Alpina

Zurich-based SpaceTech startup developing compact rotating detonation rocket engines (RDREs) to make movement between orbits faster, smaller, and more efficient.

€3.8MPre-seed
Space
—
allO

allO aims to revolutionise the restaurant space with digital tools.

€12MSeries A
Foodtech
—
Handshaik

An AI-native platform that aims to transform the deal origination sector.

£1.7MPre-seed
Software
—
Olyzon

France-based provider of an agentic decisioning layer service for CTV advertising.

$10MSeries A
Marketing
—
Pacifico Biolabs

Pacifico Biolabs specialises in the cultivation of microorganisms, focusing on developing ‘whole-muscle’ structures as sustainable and nutritious alternatives to traditional fish products.

€7MSeries A
Foodtech
—
Publicit

Publicit is developing an advertising infrastructure designed to improve access to digital and omnichannel advertising for small and medium-sized businesses.

€700KPre-seed
Marketing
—
RevEng.AI

a cybersecurity company focused on software supply chain verification.

$15MSeries A
Cybersecurity
—
WeRoad

WeRoad puts together solo travelers eager to discovery the world, meet new cultures, and make new friends.

$58MSeries C+
Travel
—
Avrea

modern Continuous Integration (CI) platform built for the agentic AI era of software development.

$4.7MPre-seed
Software
—
Certo

an AI-powered compliance platform for the beauty and consumer goods industries.

$4MSeed
AI
—
D-CRBN

Antwerp-based DeepTech startup developing electrified plasma technology to recycle CO₂ and hydrocarbons into circular carbon molecules.

€17.5MSeries A
Deeptech
—
Lucis

French startup focused on expanding access to preventive health testing.

$20MSeries A
Healthtech
—
Quanscient

Finnish cloud and quantum computing-powered multiphysics simulation technology provider.

€10MSeries A
Deeptech
—
Voxmind

voice biometrics and deepfake detection startup.

£546.5KPre-seed
AI
—
Orbik Cybersecurity

Orbik works side by side with manufacturers and integrators to ensure industrial product cybersecurity compliance.

€2MGrowth
Cybersecurity
—
Fonoa$110M

A provider of global tax infrastructure that automates indirect tax calculation, e-invoicing, tax ID validation, and tax return filing for e-businesses.

Series C+ · Fintech

Barcelona-based startup building an AI operating system for R&D teams in formulation industries.

Pre-seed · AI
MokN$15M

MokN, a Paris-based startup, is turning the tide on identity theft with its innovative “phish-back” technology. Its ultra-realistic honeypots trick hackers into exposing stolen login details before any damage can be done.

Series A · Cybersecurity
NUCLIDIUMCHF 26M

Swiss clinical-stage biotechnology company pioneering the development of next-generation copper-based radiopharmaceuticals for the diagnosis and treatment of cancer.

Series B · Healthtech
Didit€6.4M

a company that develops identity verification and fraud prevention infrastructure.

Seed · Software

UK-based provider of a developer of an agent-native security platform.

Series A · Cybersecurity
Kopa.ai€2M

an agentic AI platform for e-commerce teams.

Seed · AI
Mathew€1.2M

the edtech startup specializing in artificial intelligence for teachers and students.

Seed · Edtech

London-based company developing industrial hardware and infrastructure using AI-driven engineering and materials discovery systems.

Series B · Hardware

Perceptic’s platform strives to unify asset scouting, scientific evaluation and clinical data foundations on a shared intelligence layer.

Seed · Software

Zurich-based SpaceTech startup developing compact rotating detonation rocket engines (RDREs) to make movement between orbits faster, smaller, and more efficient.

Pre-seed · Space
allO€12M

allO aims to revolutionise the restaurant space with digital tools.

Series A · Foodtech
Handshaik£1.7M

An AI-native platform that aims to transform the deal origination sector.

Pre-seed · Software
Olyzon$10M

France-based provider of an agentic decisioning layer service for CTV advertising.

Series A · Marketing

Pacifico Biolabs specialises in the cultivation of microorganisms, focusing on developing ‘whole-muscle’ structures as sustainable and nutritious alternatives to traditional fish products.

Series A · Foodtech
Publicit€700K

Publicit is developing an advertising infrastructure designed to improve access to digital and omnichannel advertising for small and medium-sized businesses.

Pre-seed · Marketing

a cybersecurity company focused on software supply chain verification.

Series A · Cybersecurity
WeRoad$58M

WeRoad puts together solo travelers eager to discovery the world, meet new cultures, and make new friends.

Series C+ · Travel
Avrea$4.7M

modern Continuous Integration (CI) platform built for the agentic AI era of software development.

Pre-seed · Software

an AI-powered compliance platform for the beauty and consumer goods industries.

Seed · AI
D-CRBN€17.5M

Antwerp-based DeepTech startup developing electrified plasma technology to recycle CO₂ and hydrocarbons into circular carbon molecules.

Series A · Deeptech
Lucis$20M

French startup focused on expanding access to preventive health testing.

Series A · Healthtech

Finnish cloud and quantum computing-powered multiphysics simulation technology provider.

Series A · Deeptech
Voxmind£546.5K

voice biometrics and deepfake detection startup.

Pre-seed · AI

Orbik works side by side with manufacturers and integrators to ensure industrial product cybersecurity compliance.

Growth · Cybersecurity
07 / Further reading

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