US startup investors — January 2026 · Jan 1, 2026 – Jan 31, 2026

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

Washington Harbour PartnersLatest Jan 26

Standard Nuclear · $140M Series A Array Labs · $20M Series A

2rounds

—led

Climate tech 1Space tech 1

Series A 2

Jan 26, 2026

Details

New companies 2 · Follow-on 0

Stages: Series A 2

Standard Nuclear $140M Series A Array Labs $20M Series A

Battery VenturesLatest Jan 23

Baseten · $300M Series E Onebrief · $200M Series D

2rounds

—led

AI 1Defense tech 1

Series C+ 2

Jan 23, 2026

Details

New companies 2 · Follow-on 0

Stages: Series C+ 2

Baseten $300M Series E Onebrief $200M Series D

BondLatest Jan 23

Baseten · $300M Series E OpenEvidence · $250M Series D

2rounds

—led

AI 1Healthtech 1

Series C+ 2

Jan 23, 2026

Details

New companies 2 · Follow-on 0

Stages: Series C+ 2

Baseten $300M Series E OpenEvidence $250M Series D

ConvictionLatest Jan 23

Baseten · $300M Series E OpenEvidence · $250M Series D

2rounds

—led

AI 1Healthtech 1

Series C+ 2

Jan 23, 2026

Details

New companies 2 · Follow-on 0

Stages: Series C+ 2

Baseten $300M Series E OpenEvidence $250M Series D

5AM VenturesLatest Jan 22

Mendra · $82M Series A Kinaset Therapeutics · $103M Series B

2rounds

—led

Biotech 2

Series A 1, Series B 1

Jan 22, 2026

Details

New companies 2 · Follow-on 0

Stages: Series A 1, Series B 1

Mendra $82M Series A Kinaset Therapeutics $103M Series B

Carbon Direct CapitalLatest Jan 22

Neurophos · $110M Series A Sage Geosystems · $97M Series B

2rounds

—led

AI 1Climate tech 1

Series A 1, Series B 1

Jan 22, 2026

Details

New companies 2 · Follow-on 0

Stages: Series A 1, Series B 1

Neurophos $110M Series A Sage Geosystems $97M Series B

DNX VenturesLatest Jan 22

Neurophos · $110M Series A Spangle AI · $15M Series A

2rounds

—led

AI 2

Series A 2

Jan 22, 2026

Details

New companies 2 · Follow-on 0

Stages: Series A 2

Neurophos $110M Series A Spangle AI $15M Series A

Maverick VenturesLatest Jan 22

Cambio · $18M Series A Claim Health · $4.4M Seed

2rounds

—led

Healthtech 1Proptech 1

Seed 1, Series A 1

Jan 22, 2026

Details

New companies 2 · Follow-on 0

Stages: Seed 1, Series A 1

Cambio $18M Series A Claim Health $4.4M Seed

NorwestLatest Jan 22

Mia Labs · $20M Series A Rain · $250M Series C

2rounds

—led

Fintech 1Mobility 1

Series A 1, Series C+ 1

Jan 22, 2026

Details

New companies 2 · Follow-on 0

Stages: Series A 1, Series C+ 1

Mia Labs $20M Series A Rain $250M Series C

100

Pathlight VenturesLatest Jan 22

Artie · $12M Series A Oasys Health · $4.6M Seed+Pre-Seed

2rounds

—led

Developer tools 1Healthtech 1

Series A 1, Undisclosed 1

Jan 22, 2026

Details

New companies 2 · Follow-on 0

Stages: Series A 1, Undisclosed 1

Artie $12M Series A Oasys Health $4.6M Seed+Pre-Seed

101

RedpointLatest Jan 22

Railway · $100M Series B Cyera · $400M Series F

2rounds

—led

Cybersecurity 1Developer tools 1

Series B 1, Series C+ 1

Jan 22, 2026

Details

New companies 2 · Follow-on 0

Stages: Series B 1, Series C+ 1

Railway $100M Series B Cyera $400M Series F

102

Silicon Catalyst VenturesLatest Jan 22

Neurophos · $110M Series A Quadric · $30M Series C

2rounds

—led

AI 2

Series A 1, Series C+ 1

Jan 22, 2026

Details

New companies 2 · Follow-on 0

Stages: Series A 1, Series C+ 1

Neurophos $110M Series A Quadric $30M Series C

103

Tectonic VenturesLatest Jan 22

Neurophos · $110M Series A Pluto Financial Technologies · $8.6M Seed

2rounds

—led

AI 1Fintech 1

Seed 1, Series A 1

Jan 22, 2026

Details

New companies 2 · Follow-on 0

Stages: Seed 1, Series A 1

Neurophos $110M Series A Pluto Financial Technologies $8.6M Seed

104

AlkeonLatest Jan 21

OpenEvidence · $250M Series D Deepgram · $130M Series C

2rounds

—led

AI 1Healthtech 1

Series C+ 2

Jan 21, 2026

Details

New companies 2 · Follow-on 0

Stages: Series C+ 2

OpenEvidence $250M Series D Deepgram $130M Series C

105

Breyer CapitalLatest Jan 21

OpenEvidence · $250M Series D Soley Therapeutics · $200M Series C

2rounds

—led

Biotech 1Healthtech 1

Series C+ 2

Jan 21, 2026

Details

New companies 2 · Follow-on 0

Stages: Series C+ 2

OpenEvidence $250M Series D Soley Therapeutics $200M Series C

106

Construct CapitalLatest Jan 21

Nexxa.ai · $9M Seed Hadrian · Undisclosed Undisclosed

2rounds

—led

Industrial tech 2

Seed 1, Undisclosed 1

Jan 21, 2026

Details

New companies 2 · Follow-on 0

Stages: Seed 1, Undisclosed 1

Nexxa.ai $9M Seed Hadrian Undisclosed Undisclosed

107

Innovation EndeavorsLatest Jan 21

Datarails · $70M Series C Think Bioscience · $55M Series A

2rounds

—led

Biotech 1Fintech 1

Series A 1, Series C+ 1

Jan 21, 2026

Details

New companies 2 · Follow-on 0

Stages: Series A 1, Series C+ 1

Datarails $70M Series C Think Bioscience $55M Series A

108

Prosperity7Latest Jan 21

Upscale AI · $200M Series A Horizon3 · Undisclosed Undisclosed

2rounds

—led

AI 1Cybersecurity 1

Series A 1, Undisclosed 1

Jan 21, 2026

Details

New companies 2 · Follow-on 0

Stages: Series A 1, Undisclosed 1

Upscale AI $200M Series A Horizon3 Undisclosed Undisclosed

109

Tiger GlobalLatest Jan 21

Zipline · $600M Series B Upscale AI · $200M Series A

2rounds

—led

AI 1Logistics 1

Series A 1, Series B 1

Jan 21, 2026

Details

New companies 2 · Follow-on 0

Stages: Series A 1, Series B 1

Zipline $600M Series B Upscale AI $200M Series A

110

Toyota VenturesLatest Jan 21

AheadComputing · $30M Seed+Haiqu · $11M Seed

2rounds

—led

AI 1Developer tools 1

Seed 2

Jan 21, 2026

Details

New companies 2 · Follow-on 0

Stages: Seed 2

AheadComputing $30M Seed+Haiqu $11M Seed

111

Valor Equity PartnersLatest Jan 21

Zipline · $600M Series B Defense Unicorns · $136M Series B

2rounds

—led

Defense tech 1Logistics 1

Series B 2

Jan 21, 2026

Details

New companies 2 · Follow-on 0

Stages: Series B 2

Zipline $600M Series B Defense Unicorns $136M Series B

112

Vintage Investment PartnersLatest Jan 21

Datarails · $70M Series C Converge Bio · $25M Series A

2rounds

—led

AI 1Fintech 1

Series A 1, Series C+ 1

Jan 21, 2026

Details

New companies 2 · Follow-on 0

Stages: Series A 1, Series C+ 1

Datarails $70M Series C Converge Bio $25M Series A

113

1984 VenturesLatest Jan 20

Statusphere · $18M Series A Oasys Health · $4.6M Seed+Pre-Seed

2rounds

—led

Enterprise software 1Healthtech 1

Series A 1, Undisclosed 1

Jan 20, 2026

Details

New companies 2 · Follow-on 0

Stages: Series A 1, Undisclosed 1

Statusphere $18M Series A Oasys Health $4.6M Seed+Pre-Seed

114

Oncology VenturesLatest Jan 20

BIOMAKERS · $8M Undisclosed RISA Labs · $11.1M Series A

2rounds

—led

AI 1Biotech 1

Series A 1, Undisclosed 1

Jan 20, 2026

Details

New companies 2 · Follow-on 0

Stages: Series A 1, Undisclosed 1

BIOMAKERS $8M Undisclosed RISA Labs $11.1M Series A

115

Uncork CapitalLatest Jan 20

Ivo · $55M Series B Quadric · $30M Series C

2rounds

0led

AI 1Enterprise software 1

Series B 1, Series C+ 1

Jan 20, 2026

Details

New companies 2 · Follow-on 0

Stages: Series B 1, Series C+ 1

Ivo $55M Series B Quadric $30M Series C

116

YK BioventuresLatest Jan 20

Think Bioscience · $55M Series A Vivere Oncotherapies · $10M Series A

2rounds

—led

Biotech 2

Series A 2

Jan 20, 2026

Details

New companies 2 · Follow-on 0

Stages: Series A 2

Think Bioscience $55M Series A Vivere Oncotherapies $10M Series A

117

Inc.Latest Jan 16

ClickHouse · $400M Series D Mirador Therapeutics · $250M Series B

2rounds

—led

Biotech 1Developer tools 1

Series B 1, Series C+ 1

Jan 16, 2026

Details

New companies 2 · Follow-on 0

Stages: Series B 1, Series C+ 1

ClickHouse $400M Series D Mirador Therapeutics $250M Series B

118

GreenoaksLatest Jan 15

Mytra · $120M Series C Cyera · $400M Series F

2rounds

—led

Cybersecurity 1Robotics 1

Series C+ 2

Jan 15, 2026

Details

New companies 2 · Follow-on 0

Stages: Series C+ 2

Mytra $120M Series C Cyera $400M Series F

119

SOSVLatest Jan 15

Sable · Undisclosed Pre-Seed Transition Metal Solutions · $6M Seed

2rounds

—led

Biotech 1Industrial tech 1

Pre-seed 1, Seed 1

Jan 15, 2026

Details

New companies 2 · Follow-on 0

Stages: Pre-seed 1, Seed 1

Sable Undisclosed Pre-Seed Transition Metal Solutions $6M Seed

120

Commerce VenturesLatest Jan 14

Monnai · $12M Equity WeatherPromise · $12.8M Series A

2rounds

—led

Fintech 1Travel tech 1

Series A 1, Undisclosed 1

Jan 14, 2026

Details

New companies 2 · Follow-on 0

Stages: Series A 1, Undisclosed 1

Monnai $12M Equity WeatherPromise $12.8M Series A

“—” 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.