byMediaBoost

Monthly edition

September 2026

379 rounds and $36.3B raised. The biggest: Crusoe, $3.9B.

Compared with August 2026

Rounds
379 +36%
Capital raised
$36.3B +52%
Median round
$17.5M +1%

The month in charts

AI took 57% of the capital this month, about the same as in August. $36.3B in all, up 52% on August.

Mega-rounds against the rest

70 of 379 rounds made 84% of the capital.

18% of the rounds were of $100M or more 18%of the rounds70 of 37984% of the capital came from rounds of $100M or more 84%of the capital$30.3B of $36.3B
Rounds of $100M or more, September 2026
RoundsCapital
$100M or more70$30.3B
The rest309$6B

Capital raised per day

The busiest day: Tue 8 Sept, $5.4B across 22 rounds.

Capital raised per day, September 2026 Tue 1 Sept: $955M, 21 rounds; Wed 2 Sept: $1.6B, 18 rounds; Thu 3 Sept: $691M, 17 rounds; Fri 4 Sept: $85.7M, 9 rounds; Sat 5 Sept: $0K, 0 rounds; Sun 6 Sept: $0K, 0 rounds; Mon 7 Sept: $206M, 11 rounds; Tue 8 Sept: $5.4B, 22 rounds; Wed 9 Sept: $3.2B, 24 rounds; Thu 10 Sept: $5.1B, 21 rounds; Fri 11 Sept: $1.7B, 7 rounds; Sat 12 Sept: $55M, 1 round; Sun 13 Sept: $0K, 0 rounds; Mon 14 Sept: $2.5B, 22 rounds; Tue 15 Sept: $1.8B, 23 rounds; Wed 16 Sept: $1.1B, 27 rounds; Thu 17 Sept: $5B, 23 rounds; Fri 18 Sept: $301M, 8 rounds; Sat 19 Sept: $111M, 3 rounds; Sun 20 Sept: $0K, 0 rounds; Mon 21 Sept: $172M, 5 rounds; Tue 22 Sept: $1B, 24 rounds; Wed 23 Sept: $1.5B, 17 rounds; Thu 24 Sept: $1B, 18 rounds; Fri 25 Sept: $11.1M, 2 rounds; Sat 26 Sept: $0K, 0 rounds; Sun 27 Sept: $100M, 1 round; Mon 28 Sept: $230M, 12 rounds; Tue 29 Sept: $638M, 18 rounds; Wed 30 Sept: $1.7B, 25 rounds $2B$4B$6B 1 7 14 21 28 $5.4B W36$3.3B W37$15.7B W38$10.8B W39$3.8B
Capital raised per day, September 2026
DayRoundsCapitalBiggest round
Tue 1 Sept21$955MTripo AI, $445M
Wed 2 Sept18$1.6BWonderful, $550M
Thu 3 Sept17$691MUpwind, $300M
Fri 4 Sept9$85.7MOpenReserve, $25M
Sat 5 Sept0$0K
Sun 6 Sept0$0K
Mon 7 Sept11$206MPixxel, $100M
Tue 8 Sept22$5.4BMistral, $3.5B
Wed 9 Sept24$3.2BCognition AI, $2B
Thu 10 Sept21$5.1BThe Boring Company, $3B
Fri 11 Sept7$1.7BMotive, $1.3B
Sat 12 Sept1$55MByteFuture, $55M
Sun 13 Sept0$0K
Mon 14 Sept22$2.5BLumilens, $700M
Tue 15 Sept23$1.8Bbarq, $330M
Wed 16 Sept27$1.1BImpulse Space, $308M
Thu 17 Sept23$5BCrusoe, $3.9B
Fri 18 Sept8$301MHello Robotaxi, $100M
Sat 19 Sept3$111MVantora, $100M
Sun 20 Sept0$0K
Mon 21 Sept5$172MRainmaker, $100M
Tue 22 Sept24$1BSnorkel AI, $350M
Wed 23 Sept17$1.5BTEKEVER, $580M
Thu 24 Sept18$1BIsland, $400M
Fri 25 Sept2$11.1MDextr AI, $6.7M
Sat 26 Sept0$0K
Sun 27 Sept1$100MNumeral, $100M
Mon 28 Sept12$230MQuartermaster, $100M
Tue 29 Sept18$638MReverion, $175M
Wed 30 Sept25$1.7BEliseAI, $350M

Where the capital went

AI raised $20.8B, 57% of the capital. Choose a sector to filter the rounds below.

Capital by sector, September 2026 57% AI AI $20.8B 172 rounds 57% Robotics & Hardware $3.4B 22 rounds 9% Health $1.9B 33 rounds 5% Fintech $1B 31 rounds 3% Climate & Energy $1B 23 rounds 3% Other sectors $8.1B 98 rounds 22%
Capital by sector, September 2026
SectorCapitalShareRounds
AI$20.8B57%172
Other$6.6B18%56
Robotics & Hardware$3.4B9%22
Health$1.9B5%33
Fintech$1B3%31
Climate & Energy$1B3%23
Cybersecurity$847M2%9
Enterprise software$626M2%23
Consumer$63.6M<1%10

The 10 biggest rounds

The 10 biggest rounds raised $17.4B, 48% of the total.

The 10 biggest rounds, September 2026Crusoe: $3.9B; Mistral: $3.5B; The Boring Company: $3B; Cognition AI: $2B; Motive: $1.3B; Stoke Space: $1B; Positron AI: $875M; Lumilens: $700M; TEKEVER: $580M; Temporal: $550M Crusoe $3.9B · Series F Mistral $3.5B · Series D The Boring Company $3B Cognition AI $2B · Series E Motive $1.3B Stoke Space $1B Positron AI $875M Lumilens $700M TEKEVER $580M · Series D Temporal $550M · Series E

Everyone who raised

379 companies raised $36.3B. A bigger tile is a bigger round.

Every company that raised, September 2026TSBTVHPSBHPLJIANANCCHACJG3BLBThe 54 biggest rounds, September 2026TSBT

The 54 biggest of 379. Open on a wider screen for all of them, or see every round below.

Most active investors

Insight Partners joined 14 rounds, leading 11, more than any other investor.

Most active investors, September 2026Insight Partners: 14 rounds, 11 led; General Catalyst: 13 rounds, 6 led; Y Combinator: 12 rounds, 2 led; Andreessen Horowitz: 10 rounds, 6 led; Lightspeed Venture Partners: 10 rounds, 4 led; Accel: 9 rounds, 5 led; Sequoia Capital: 9 rounds, 3 led; Khosla Ventures: 9 rounds, 3 led; Bessemer Venture Partners: 8 rounds, 3 led; High-Tech Gründerfonds: 8 rounds, 3 ledLedJoined Insight Partners 14 rounds · 11 led General Catalyst 13 rounds · 6 led Y Combinator 12 rounds · 2 led Andreessen Horowitz 10 rounds · 6 led Lightspeed Venture Partners 10 rounds · 4 led Accel 9 rounds · 5 led Sequoia Capital 9 rounds · 3 led Khosla Ventures 9 rounds · 3 led Bessemer Venture Partners 8 rounds · 3 led High-Tech Gründerfonds 8 rounds · 3 led

The investor race

Ranked by rounds joined so far. Insight Partners finished first with 14 rounds over September 2026. The lead changed hands 3 times.

The investor race, September 2026Insight Partners: ranks 2, 3, 2, 1, 1, 14 rounds; General Catalyst: ranks 3, 5, 1, 2, 2, 13 rounds; Y Combinator: ranks 1, 2, 5, 3, 3, 12 rounds; Andreessen Horowitz: ranks 4, 1, 4, 5, 4, 10 rounds; Lightspeed Venture Partners: ranks 5, 4, 3, 4, 5, 10 rounds W36W37W38W39W40 Insight Partners 14 rounds · 11 led General Catalyst 13 rounds · 6 led Y Combinator 12 rounds · 2 led Andreessen Horowitz 10 rounds · 6 led Lightspeed Venture Pa… 10 rounds · 4 led
Rounds joined so far, September 2026
InvestorWeek 36Week 37Week 38Week 39Week 40
Insight Partners2481214
General Catalyst14101213
Y Combinator3661112
Andreessen Horowitz167810
Lightspeed Venture Partners0481010

Where the rounds were

United States raised $9.5B, 26% of the capital. Rounds in 33 countries, 128 with no country disclosed.

Capital by country, September 2026United States: $9.5B; France: $3.7B; China: $1.1B; Netherlands: $835M; United Kingdom: $690M; India: $667M; Portugal: $580M; Israel: $561M; Saudi Arabia: $364M; Italy: $359M; Germany: $353M; United Arab Emirates: $251M United States $9.5B · 91 rounds France $3.7B · 13 rounds China $1.1B · 6 rounds Netherlands $835M · 7 rounds United Kingdom $690M · 19 rounds India $667M · 26 rounds Portugal $580M · 1 round Israel $561M · 5 rounds

The cities that raised

Denver raised $3.9B, more than all of Asia ($3B). Rounds from 114 cities.

Capital by city, September 2026Denver: $3.9B; San Francisco: $2.6B; New York: $1.1B; Kent: $1B; Seattle: $558M; Amsterdam: $553M; Bengaluru: $542M; Beijing: $495M; Munich: $487M; Sunnyvale: $439M; Dallas: $400M; Hong Kong: $400M Denver $3.9B · 1 round San Francisco $2.6B · 28 rounds New York $1.1B · 21 rounds Kent $1B · 1 round Seattle $558M · 2 rounds Amsterdam $553M · 3 rounds

Rounds by stage

Series A was the most common stage: 75 rounds, median $20.8M. The median round size is under each column.

Rounds by stage, September 2026 35 Pre $2.4M 67 Seed $6.3M 75 A $21M 36 B $44M 21 C $108M 7 D $251M 9 E+ $275M 6 Growth $27M 123 Other $19M
Rounds by stage, September 2026
StageRoundsMedian round
Pre-Seed35$2.4M
Seed67$6.3M
Series A75$20.8M
Series B36$43.5M
Series C21$108M
Series D7$251M
Series E+9$275M
Growth6$27M
Other or undisclosed123$19M

Sectors against August 2026

Biggest gain: AI, +$6.7B. Biggest drop: Consumer, -$569M. Change in capital raised. Only where both periods have rounds.

Change in capital by sectors, September 2026 against August 2026AI: +$6.7B; Other: +$2.9B; Robotics & Hardware: +$1.4B; Health: +$862M; Cybersecurity: +$506M; Enterprise software: +$417M; Climate & Energy: +$380M; Fintech: -$177M; Consumer: -$569M AI +$6.7B +47% Other +$2.9B +78% Robotics & Hardware +$1.4B +69% Health +$862M +85% Cybersecurity +$506M +148% Enterprise software +$417M +200% Climate & Energy +$380M +61% Fintech -$177M -15% Consumer -$569M -90%
Sectors against August 2026
SectorsSeptember 2026August 2026Change
AI$20.8B$14.2B+$6.7B
Other$6.6B$3.7B+$2.9B
Robotics & Hardware$3.4B$2B+$1.4B
Health$1.9B$1B+$862M
Cybersecurity$847M$341M+$506M
Enterprise software$626M$209M+$417M
Climate & Energy$1B$625M+$380M
Fintech$1B$1.2B-$177M
Consumer$63.6M$633M-$569M

Countries against August 2026

Biggest gain: France, +$3.7B. Biggest drop: United Kingdom, -$559M. Change in capital raised. Only where both periods have rounds.

Change in capital by countries, September 2026 against August 2026France: +$3.7B; China: +$1B; Netherlands: +$785M; Portugal: +$562M; Israel: +$401M; India: +$28.4M; United States: -$261M; United Kingdom: -$559M France +$3.7B ×650 China +$1B ×19 Netherlands +$785M ×17 Portugal +$562M ×32 Israel +$401M ×3.5 India +$28.4M +4% United States -$261M -3% United Kingdom -$559M -45%
Countries against August 2026
CountriesSeptember 2026August 2026Change
France$3.7B$5.7M+$3.7B
China$1.1B$57M+$1B
Netherlands$835M$50.1M+$785M
Portugal$580M$18M+$562M
Israel$561M$160M+$401M
India$667M$639M+$28.4M
United States$9.5B$9.8B-$261M
United Kingdom$690M$1.2B-$559M

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