United Kingdom · Series A startup
Funding summaryUpdated 26 Oct 2026
$46Mraised across 3 rounds since 2021, from 5 sources
Each circle is a round, placed by date and sized by amount. The line above is the running total.
Earlybird Venture CapitalLead
8VC
British Business Bank
Pillar VC
SCVC
We Venture Capital
Amino Collective
Outsized
Science CreatesReported by We Venture Capital and 2 others
No investor was named in the report.
Shares issued, filed with Companies House (SH01); no report of this raise yet
No investor was named in the report.
Shares issued, filed with Companies House (SH01); no report of this raise yet
Portal Biotech filed 4 raises, $34M in all. Filings say how much was sold and to how many investors; they never name the investors.
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Missing a round, or an investor who was in one? Tell us.
Portal Biotech's investors include Earlybird Venture Capital, 8VC, British Business Bank, Pillar VC and SCVC, and 5 more on record. Earlybird Venture Capital led its latest round.
Portal Biotech has raised $46M across 3 rounds since 2021.
Portal Biotech's most recent round was a Series A of $35M in Jun 2025, led by Earlybird Venture Capital.
Its most recent round, $35M in Jun 2025, is also its largest on record.
Portal Biotech's first round on record, in Jun 2025, was backed by Earlybird Venture Capital, 8VC and British Business Bank and 7 others.
Portal Biotech's latest named round is a Series A, in Jun 2025.
Portal Biotech is based in the United Kingdom.
Earlybird Venture Capital led the Series A in 2025.
In the same sector, and raised in the last eighteen months.
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United Kingdom · 
