Monthly roundup · United Kingdom · October 2026

Startup funding in the United Kingdom, October 2026: Fractile's $700M Series C leads 56 rounds

By Millionrounds ResearchPublished 1 November 2026

We read 56 equity rounds raised in the United Kingdom and announced in October 2026, raising $2.0B between them: 8% of the rounds we read worldwide that month and 3% of the money. The largest was Fractile's $700M Series C, led by Lightspeed Venture Partners and Redpoint. The median seed round was $3.6M, against $3.2M over the last twelve months in the United Kingdom; at Series A it was $12M. Fuel Ventures led the most rounds, with 3.

Equity rounds56raised in the United Kingdom, 54 with an amount
Raised$2.0Bacross those rounds
Lead named84%of rounds say who led
Share of the world8%of rounds; 3% of the money

The biggest rounds

  1. 1FractileSeries C · led by Lightspeed Venture Partners, Redpoint$700M
  2. 2Open CosmosSeries C · led by ETF Partners$334M
  3. 3OMass TherapeuticsSeries C · led by Novo Holdings, Forbion Capital Partners$310M
  4. 4Salience LabsSeries B · led by Bullhound Capital$125M
  5. 5BlackwallSeries C · led by AVP$100M
  6. 6ScarletSeries B · led by Headline$50M
  7. 7MMachentaSeed · led by Union Square Ventures, Creandum$40M
  8. 8SSava TechnologiesSeries B · led by Ascensia Diabetes Care$36M
  9. 9EasolSeries A$30M
  10. 10Circuit MindSeries A · led by Norwest Venture Partners$19M

Day by day

Equity rounds raised in the United Kingdom and announced each day of October. The busiest day was 20 October, with 5.

1 October31 October

By stage, against the year

Each stage's median this month beside its twelve-month median: the United Kingdom's own where we hold enough rounds for a benchmark, otherwise the worldwide one.

Pre-seed12$1.6Mthis month$1.8M12 months here
Seed22$3.6Mthis month$3.2M12 months here
Series A13$12Mthis month$13M12 months here
Series B3$50Mthis month$42M12 months here
Series C4$322Mthis month$100M12 months, worldwide
Growth2$6.0Mthis month$24M12 months here

The most active leads

Firms that led two or more of the month's rounds in the United Kingdom.

In what

AI was the busiest sector in the United Kingdom.

Against the world

  • Rounds, the United Kingdom56
  • Rounds, worldwide733
  • Raised, the United Kingdom$2.0B
  • Raised, worldwide$59B

The whole of October 2026

Other countries in October

281 roundsUnited States→ 74 roundsIndia→ 31 roundsChina→ 25 roundsJapan→ 24 roundsSouth Korea→ 18 roundsCanada→ 17 roundsFrance→