Monthly roundup · Software · June 2026

Software startup funding, June 2026: Prometheus's $12B Series B leads 15 rounds

By Millionrounds ResearchPublished 1 July 2026Updated 12 October 2026

We read 15 equity rounds in Software announced in June 2026, raising $13B between them: 6% of all the rounds we read that month and 37% of the money. The largest was Prometheus's $12B Series B. The median seed round was $7.8M, against $5.0M over the last twelve months in Software; at Series A it was $20M.

Equity rounds15in Software, 15 with an amount
Raised$13Bacross those rounds
Lead named80%of rounds say who led
Share of the month6%of rounds; 37% of the money

The biggest rounds

  1. 1PrometheusSeries B · United States$12B
  2. 2PhysicsXSeries C · United Kingdom · led by Temasek Holdings$300M
  3. 3Beacon SoftwareSeries C$225M
  4. 4LeapXpertGrowth · United States · led by Riverwood Capital$180M
  5. 5FactorialSeries D · Spain · led by General Catalyst$150M
  6. 6Patronus AISeries B · United States · led by Greenfield$50M
  7. 7ScotchSeries A · United States · led by VMG Partners$20M
  8. 8Six RoboticsSeed · Norway · led by DTCP$14M
  9. 9GALVANYSeed · Germany · led by AENU, SET Ventures$12M
  10. 10Companion.energySeed · Belgium · led by Realyze Ventures$9.0M

Day by day

Equity rounds in Software announced each day of June. The busiest day was 8 June, with 3.

1 June30 June

By stage, against the year

Each stage's median this month beside its twelve-month median: the sector's own where we hold enough rounds for a benchmark, otherwise the one across all sectors.

Pre-seed1$1.0Mthis month$2.0M12 months here
Seed7$7.8Mthis month$5.0M12 months here
Series A1$20Mthis month$18M12 months here
Series B2$6.0Bthis month$50M12 months, all sectors
Series C2$263Mthis month$100M12 months, all sectors
Series D1$150Mthis month$150M12 months, all sectors
Growth1$180Mthis month$113M12 months, all sectors

Where

United States had the most Software rounds this month.

Against the month

  • Rounds, Software15
  • Rounds, all sectors245
  • Raised, Software$13B
  • Raised, all sectors$35B

The whole of June 2026

Other sectors in June

124 roundsAI→39 roundsFintech→37 roundsHealthcare→24 roundsBig Data & Analytics→23 roundsBiotech→20 roundsRobotics→20 roundsEnterprise Software→16 roundsEnergy→16 roundsConstruction→12 roundsFinancial Services→11 roundsHardware & Electronics→11 roundsDefence Tech→11 roundsAerospace & Space→11 roundsMedical Devices→11 roundsLogistics→10 roundsManufacturing→