Jun 1 – 7, 2026 Startup Funding Weekly

9 European funding rounds and $927.3M disclosed. Oxford Quantum Circuits leads the edition; explore the companies, investors and stage breakdown.

· RoundOS Funding
Jun 1–Jun 7, 2026 · 9 announced rounds
9Funding rounds
$927.3MDisclosed capital · 9 rounds
$70MMedian disclosed round
01 / The takeaways

The funding announcements

01

Oxford Quantum Circuits leads disclosed funding

Its $349.6M round represents 38% of the $927.3M disclosed across this edition. Quantum compute-as-a-service (QCaaS) company.

02

Healthtech: 2 rounds

Ona Therapeutics, Semble are among the companies in the most active sector by number of rounds in this edition.

03

2 early-stage rounds

Pre-seed, seed and Series A account for 2 of the 9 announcements. These rounds total $183.6M in disclosed funding.

02 / The full selection

All funding rounds

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9 rounds · $927.3M disclosed · $70M median

Startup funding rounds
CompanyAmountStage / sectorLead investorAnnounced
Gr3n

Gr3n developed an innovative process, based on a new application of microwave technology to a well known chemical reaction.

€15.5MSeries B
Cleantech
—
Fuse Energy

Fuse Energy is a supplier of gas and electricity that provides home and business energy tariffs, EV charging solutions, and smart home energy management.

€25MSeries B
Energy
—
Ona Therapeutics

Ona Therapeutics is focused on the discovery and development of therapeutic biologics to treat metastatic cancer.

$86.6MSeries B
Healthtech
—
Semble

Semble provides practice management software, workflows and integrations for private medical practices.

£30MSeries C+
Healthtech
—
Wordsmith

provider of an AI-powered legal assistant platform.

$70MSeries B
Legaltech
—
Factorial

Factorial is a provider of human resources and business management software that automates processes related to talent, time, payroll, IT, and finance.

$150MSeries C+
HRtech
—
Oxford Quantum Circuits

Quantum compute-as-a-service (QCaaS) company.

£260MSeries C+
Deeptech
—
Quobly

Company building a quantum computer using proven semiconductor processes for a better digital future.

€115MSeries A
Deeptech
—
Endra

Endra is an AI-driven platform that automates the design, planning, and documentation of MEP (Mechanical, Electrical, and Plumbing) systems.

$50MSeries A
Software
—
Gr3n€15.5M

Gr3n developed an innovative process, based on a new application of microwave technology to a well known chemical reaction.

Series B · Cleantech

Fuse Energy is a supplier of gas and electricity that provides home and business energy tariffs, EV charging solutions, and smart home energy management.

Series B · Energy

Ona Therapeutics is focused on the discovery and development of therapeutic biologics to treat metastatic cancer.

Series B · Healthtech
Semble£30M

Semble provides practice management software, workflows and integrations for private medical practices.

Series C+ · Healthtech

provider of an AI-powered legal assistant platform.

Series B · Legaltech

Factorial is a provider of human resources and business management software that automates processes related to talent, time, payroll, IT, and finance.

Series C+ · HRtech
Quobly€115M

Company building a quantum computer using proven semiconductor processes for a better digital future.

Series A · Deeptech
Endra$50M

Endra is an AI-driven platform that automates the design, planning, and documentation of MEP (Mechanical, Electrical, and Plumbing) systems.

Series A · Software
03 / Further reading

Related reports

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June 2026 Startup Funding Report

50 European funding rounds and $5B disclosed. Neura Robotics leads the edition; explore the companies, investors and stage breakdown.