US startup investors — September 2026 · Sep 1, 2026 – Sep 30, 2026

Recent funding activity in US startups, organised by investor and their role in each round.

121

Dream VenturesLatest Sep 22

micro1 · >$100M Series B Rainmaker · $100M Series B

2rounds

1led

AI 1Climate tech 1

Series B 2

Sep 22, 2026

Details

New companies 2 · Follow-on 0

Stages: Series B 2

micro1 >$100M Series B Rainmaker $100M Series B

122

Entrée CapitalLatest Sep 22

Chamelio · $26M Series A Archy · $50M Series C

2rounds

1led

Enterprise software 1Healthtech 1

Series A 1, Series C+ 1

Sep 22, 2026

Details

New companies 2 · Follow-on 0

Stages: Series A 1, Series C+ 1

Chamelio $26M Series A Archy $50M Series C

123

Greylock PartnersLatest Sep 22

Snorkel AI · $350M Series E Highstock · $30M Series A

2rounds

0led

AI 1Ecommerce 1

Series A 1, Series C+ 1

Sep 22, 2026

Details

New companies 2 · Follow-on 0

Stages: Series A 1, Series C+ 1

Snorkel AI $350M Series E Highstock $30M Series A

124

Growth Equity at Goldman Sachs AlternativesLatest Sep 22

Cyera · $400M Series G extension Temporal · $550M Series E

2rounds

1led

Cybersecurity 1Developer tools 1

Series C+ 2

Sep 22, 2026

Details

New companies 2 · Follow-on 0

Stages: Series C+ 2

Cyera $400M Series G extension Temporal $550M Series E

125

GV (Google Ventures)Latest Sep 22

Snorkel AI · $350M Series E Encoded Therapeutics Inc. · $275M Series F

2rounds

1led

AI 1Biotech 1

Series C+ 2

Sep 22, 2026

Details

New companies 2 · Follow-on 0

Stages: Series C+ 2

Snorkel AI $350M Series E Encoded Therapeutics Inc. $275M Series F

126

Long Journey VenturesLatest Sep 22

Snag · $4M Seed Nara Health · Undisclosed Seed

2rounds

0led

Healthtech 1Proptech 1

Seed 2

Sep 22, 2026

Details

New companies 2 · Follow-on 0

Stages: Seed 2

Snag $4M Seed Nara Health Undisclosed Seed

127

M13Latest Sep 22

Baselayer · $35M Series A Ayble Health · $16M Series A

2rounds

1led

Fintech 1Healthtech 1

Series A 2

Sep 22, 2026

Details

New companies 2 · Follow-on 0

Stages: Series A 2

Baselayer $35M Series A Ayble Health $16M Series A

128

Outset CapitalLatest Sep 22

StarSling · Undisclosed Pre-Seed Wafer · $40M Series A

2rounds

0led

Developer tools 1Hardware 1

Pre-seed 1, Series A 1

Sep 22, 2026

Details

New companies 2 · Follow-on 0

Stages: Pre-seed 1, Series A 1

StarSling Undisclosed Pre-Seed Wafer $40M Series A

129

RedpointLatest Sep 22

Ande · Undisclosed Series A Forus · $150M Series C

2rounds

0led

Enterprise software 1Healthtech 1

Series A 1, Series C+ 1

Sep 22, 2026

Details

New companies 1 · Follow-on 1

Stages: Series A 1, Series C+ 1

Ande Undisclosed Series A Forus $150M Series C

130

Sierra VenturesLatest Sep 22

Ande · Undisclosed Series A AI Hospitality Group · $7.5M Seed

2rounds

0led

Enterprise software 1Travel tech 1

Seed 1, Series A 1

Sep 22, 2026

Details

New companies 2 · Follow-on 0

Stages: Seed 1, Series A 1

Ande Undisclosed Series A AI Hospitality Group $7.5M Seed

131

Updata PartnersLatest Sep 22

Go.AI · $85M Series A Hi Rasmus · $50M Strategic minority investment

2rounds

1led

AI 1Healthtech 1

Series A 1, Undisclosed 1

Sep 22, 2026

Details

New companies 2 · Follow-on 0

Stages: Series A 1, Undisclosed 1

Go.AI $85M Series A Hi Rasmus $50M Strategic minority investment

132

Walden Catalyst VenturesLatest Sep 22

Snorkel AI · $350M Series E Polaris Electro-Optics · $50M Series B

2rounds

1led

AI 1Hardware 1

Series B 1, Series C+ 1

Sep 22, 2026

Details

New companies 2 · Follow-on 0

Stages: Series B 1, Series C+ 1

Snorkel AI $350M Series E Polaris Electro-Optics $50M Series B

133

Active Impact InvestmentsLatest Sep 21

Fluxnium, Inc. · $7M Seed Branch Energy · $33M Series B

2rounds

0led

Climate tech 2

Seed 1, Series B 1

Sep 21, 2026

Details

New companies 2 · Follow-on 0

Stages: Seed 1, Series B 1

Fluxnium, Inc. $7M Seed Branch Energy $33M Series B

134

Animal CapitalLatest Sep 21

Footprint · $25M Series B Buywander · $21M Series A

2rounds

0led

Ecommerce 1Fintech 1

Series A 1, Series B 1

Sep 21, 2026

Details

New companies 2 · Follow-on 0

Stages: Series A 1, Series B 1

Footprint $25M Series B Buywander $21M Series A

135

CoinbaseLatest Sep 21

CatchBack Cards · $7.8M Seed Latitude · $35M Series A

2rounds

0led

Ecommerce 1Fintech 1

Seed 1, Series A 1

Sep 21, 2026

Details

New companies 2 · Follow-on 0

Stages: Seed 1, Series A 1

CatchBack Cards $7.8M Seed Latitude $35M Series A

136

Commerce VenturesLatest Sep 21

Footprint · $25M Series B Kastle · $24M Series A

2rounds

0led

AI 1Fintech 1

Series A 1, Series B 1

Sep 21, 2026

Details

New companies 2 · Follow-on 0

Stages: Series A 1, Series B 1

Footprint $25M Series B Kastle $24M Series A

137

Congruent VenturesLatest Sep 21

Fluxnium, Inc. · $7M Seed Robigo · Undisclosed Series A

2rounds

1led

Agritech 1Climate tech 1

Seed 1, Series A 1

Sep 21, 2026

Details

New companies 2 · Follow-on 0

Stages: Seed 1, Series A 1

Fluxnium, Inc. $7M Seed Robigo Undisclosed Series A

138

Inovia CapitalLatest Sep 21

Feldera · $15.4M Series A Branch Energy · $33M Series B

2rounds

1led

Climate tech 1Enterprise software 1

Series A 1, Series B 1

Sep 21, 2026

Details

New companies 2 · Follow-on 0

Stages: Series A 1, Series B 1

Feldera $15.4M Series A Branch Energy $33M Series B

139

Lowercarbon CapitalLatest Sep 21

Rainmaker · $100M Series B Rune · $40M Series A

2rounds

0led

Climate tech 2

Series A 1, Series B 1

Sep 21, 2026

Details

New companies 2 · Follow-on 0

Stages: Series A 1, Series B 1

Rainmaker $100M Series B Rune $40M Series A

140

Operator PartnersLatest Sep 21

Footprint · $25M Series B Noetive · $41M Seed

2rounds

0led

AI 1Fintech 1

Seed 1, Series B 1

Sep 21, 2026

Details

New companies 2 · Follow-on 0

Stages: Seed 1, Series B 1

Footprint $25M Series B Noetive $41M Seed

141

Upfront VenturesLatest Sep 21

Rainmaker · $100M Series B Ayble Health · $16M Series A

2rounds

0led

Climate tech 1Healthtech 1

Series A 1, Series B 1

Sep 21, 2026

Details

New companies 2 · Follow-on 0

Stages: Series A 1, Series B 1

Rainmaker $100M Series B Ayble Health $16M Series A

142

Illumina VenturesLatest Sep 18

Robigo · Undisclosed Series A Encoded Therapeutics Inc. · $275M Series F

2rounds

0led

Agritech 1Biotech 1

Series A 1, Series C+ 1

Sep 18, 2026

Details

New companies 2 · Follow-on 0

Stages: Series A 1, Series C+ 1

Robigo Undisclosed Series A Encoded Therapeutics Inc. $275M Series F

143

Olivier PomelLatest Sep 18

Flam · $40M Series B Norbert Health · $14M Series A

2rounds

0led

Healthtech 1Media & gaming 1

Series A 1, Series C+ 1

Sep 18, 2026

Details

New companies 2 · Follow-on 0

Stages: Series A 1, Series C+ 1

Flam $40M Series B Norbert Health $14M Series A

144

Town Hall VenturesLatest Sep 18

Angle Health · $200M Series C and tender offer Thyme Care · >$125M Series E

2rounds

0led

Healthtech 2

Series C+ 2

Sep 18, 2026

Details

New companies 2 · Follow-on 0

Stages: Series C+ 2

Angle Health $200M Series C and tender offer Thyme Care >$125M Series E

145

YK BioventuresLatest Sep 18

Tempo Therapeutics · $14.5M Funding Moonwalk Biosciences · $70M Series B

2rounds

1led

Biotech 2

Series B 1, Undisclosed 1

Sep 18, 2026

Details

New companies 2 · Follow-on 0

Stages: Series B 1, Undisclosed 1

Tempo Therapeutics $14.5M Funding Moonwalk Biosciences $70M Series B

146

AltimeterLatest Sep 17

Crusoe · $3.9B Series F (initial close; anticipated total)SciFin · $44M Seed

2rounds

1led

AI 2

Seed 1, Series C+ 1

Sep 17, 2026

Details

New companies 2 · Follow-on 0

Stages: Seed 1, Series C+ 1

Crusoe $3.9B Series F (initial close; anticipated total)SciFin $44M Seed

147

Cambium CapitalLatest Sep 17

Arcee AI · ≥$150M Series B Polaris Electro-Optics · $50M Series B

2rounds

1led

AI 1Hardware 1

Series B 2

Sep 17, 2026

Details

New companies 2 · Follow-on 0

Stages: Series B 2

Arcee AI ≥$150M Series B Polaris Electro-Optics $50M Series B

148

Era VenturesLatest Sep 17

Viabot · $24M Series A Mainstay · >$18M Funding

2rounds

0led

Proptech 1Robotics 1

Series A 1, Undisclosed 1

Sep 17, 2026

Details

New companies 2 · Follow-on 0

Stages: Series A 1, Undisclosed 1

Viabot $24M Series A Mainstay >$18M Funding

149

FJ LabsLatest Sep 17

Mainstay · >$18M Funding Odyssey Energy Solutions · $74M Funding

2rounds

0led

Climate tech 1Proptech 1

Undisclosed 2

Sep 17, 2026

Details

New companies 2 · Follow-on 0

Stages: Undisclosed 2

Mainstay >$18M Funding Odyssey Energy Solutions $74M Funding

150

Qatar Investment AuthorityLatest Sep 17

Crusoe · $3.9B Series F (initial close; anticipated total)Positron AI · ≤$875M Series C and Series C-1 financing package

2rounds

0led

AI 1Hardware 1

Series C+ 2

Sep 17, 2026

Details

New companies 2 · Follow-on 0

Stages: Series C+ 2

Crusoe $3.9B Series F (initial close; anticipated total)Positron AI ≤$875M Series C and Series C-1 financing package

“—” in Led means every role for that investor in this period is undisclosed; it does not mean zero leads. New companies counts the first participation in a company in our records; follow-on counts later participation.