May 25 – 31, 2026 Startup Funding Weekly

24 European funding rounds and $437.8M disclosed. Fonoa leads the edition; explore the companies, investors and stage breakdown.

· RoundOS Funding
May 25–May 31, 2026 · 24 announced rounds
24Funding rounds
$437.8MDisclosed capital · 24 rounds
$10.8MMedian disclosed round
01 / The takeaways

The funding announcements

01

Fonoa leads disclosed funding

Its $110M round represents 25% of the $437.8M disclosed across this edition. A provider of global tax infrastructure that automates indirect tax calculation, e-invoicing, tax ID validation, and tax return filing for e-businesses.

02

Software: 4 rounds

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

03

20 early-stage rounds

Pre-seed, seed and Series A account for 20 of the 24 announcements. These rounds total $186.5M in disclosed funding.

02 / The full selection

All funding rounds

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24 rounds · $437.8M disclosed · $10.8M 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
—
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
03 / Further reading

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