Weekly funding roundup · 28 September to 4 October 2026

Startup funding, week of 28 September: Instinct's $1.0B Series C leads 78 rounds

We read 78 equity rounds announced from 28 September to 4 October 2026, raising $4.0B between them. The largest was Instinct's $1.0B Series C. The median seed round was $4.3M, against $5.5M over the last twelve months; at Series A it was $12M. Accel led the most rounds, with 3.

Equity rounds78announced this week, 73 with an amount
Raised$4.0Bacross those rounds
Lead named85%of rounds say who led
Countries20where this week's rounds were raised

The biggest rounds

  1. 1InstinctSeries C · United States$1.0B
  2. 2EliseAIGrowth · United States · led by Andreessen Horowitz, Bessemer Venture Partners$350M
  3. 3AArmadinSeries B · United States · led by Andreessen Horowitz, Accel$256M
  4. 4PaleBlueDot AISeries C · United States · led by ComputeCore$200M
  5. 5Simple EnergySeries C · India · led by Dr. Arokiaswamy Velumani Family Office$180M
  6. 6ReverionSeries B · Germany · led by Kembara$175M
  7. 7BiossilSeries B · Canada · led by OpenAI Startup Fund$153M
  8. 8SiMa.aiSeries C · United States · led by Fidelity, Amplify Partners$150M
  9. 9SupabaseGrowth · United States · led by GIC$150M
  10. 10QuartermasterSeries B · United States · led by Insight Partners$140M

By stage, against the year

Each stage's median this week beside its median over the last twelve months. A single week is a small sample, so read the gap as a hint, not a trend.

Pre-seed11$2.3Mthis week$2.0M12-month median
Seed25$4.3Mthis week$5.5M12-month median
Series A19$12Mthis week$20M12-month median
Series B9$71Mthis week$50M12-month median
Series C7$150Mthis week$100M12-month median
Series D1$120Mthis week$158M12-month median
Growth6$30Mthis week$108M12-month median

The most active leads

Firms that led two or more of the week's rounds.

Where

  • United States31
  • United Kingdom12
  • India6
  • Canada4
  • Sweden3
  • Switzerland2

United States had the most rounds this week.

In what

  • AI38
  • Fintech9
  • Defence Tech9
  • Manufacturing8
  • Healthcare8
  • Robotics7
  • Biotech7
  • Construction6

AI was the busiest sector.