AI investors — September 2026 · Sep 1, 2026 – Sep 30, 2026

Investors backing AI companies across stages, from applications to infrastructure.

Fidelity Management & Research CompanyLatest Sep 28

SiMa.ai · $150M Series C Crusoe · $3.9B Series F (initial close; anticipated total)

3rounds

1led

AI 2Hardware 1

Series C+ 3

Sep 28, 2026

Details

New companies 2 · Follow-on 1

Stages: Series C+ 3

SiMa.ai $150M Series C Crusoe $3.9B Series F (initial close; anticipated total)Lyte $165M Series C

Spark CapitalLatest Sep 28

HiringCafe · $6.8M Pre-seed Rune · $40M Series A

3rounds

2led

AI 1Climate tech 1Fintech 1

Series A 2, Pre-seed 1

Sep 28, 2026

Details

New companies 2 · Follow-on 1

Stages: Series A 2, Pre-seed 1

HiringCafe $6.8M Pre-seed Rune $40M Series A Piston $15M Series A

StepStone GroupLatest Sep 28

SiMa.ai · $150M Series C Crusoe · $3.9B Series F (initial close; anticipated total)

3rounds

0led

AI 3

Series C+ 3

Sep 28, 2026

Details

New companies 3 · Follow-on 0

Stages: Series C+ 3

SiMa.ai $150M Series C Crusoe $3.9B Series F (initial close; anticipated total)Clay $115M Series D

Foundation CapitalLatest Sep 25

Dextr AI · $6.7M Seed IPID · $16M Series A

3rounds

1led

AI 2Fintech 1

Seed 2, Series A 1

Sep 25, 2026

Details

New companies 3 · Follow-on 0

Stages: Seed 2, Series A 1

Dextr AI $6.7M Seed IPID $16M Series A SciFin $44M Seed

Wellington ManagementLatest Sep 25

Nscale · $3.4B Pre-IPO convertible loan notes Temporal · $550M Series E

3rounds

2led

AI 2Developer tools 1

Series C+ 2, Undisclosed 1

Sep 25, 2026

Details

New companies 3 · Follow-on 0

Stages: Series C+ 2, Undisclosed 1

Nscale $3.4B Pre-IPO convertible loan notes Temporal $550M Series E Clay $115M Series D

8VCLatest Sep 24

Prime Minute · $15M Pre-Seed Vals AI · $40M Series A

3rounds

0led

AI 1Climate tech 1Fintech 1

Series A 2, Pre-seed 1

Sep 24, 2026

Details

New companies 3 · Follow-on 0

Stages: Series A 2, Pre-seed 1

Prime Minute $15M Pre-Seed Vals AI $40M Series A Luminary $22M Series A

Entrepreneurs FirstLatest Sep 24

ByteAsk · $1M Pre-seed Open Cosmos · €300M Funding round

3rounds

1led

Developer tools 1Industrial tech 1Space tech 1

Pre-seed 1, Series B 1, Undisclosed 1

Sep 24, 2026

Details

New companies 3 · Follow-on 0

Stages: Pre-seed 1, Series B 1, Undisclosed 1

ByteAsk $1M Pre-seed Open Cosmos €300M Funding round CloudNC $20M Series B extension

Socratic PartnersLatest Sep 24

PicoJool · $27.5M Series A Delos Data · >$100M Funding

3rounds

1led

Hardware 2AI 1

Series A 1, Series B 1, Undisclosed 1

Sep 24, 2026

Details

New companies 3 · Follow-on 0

Stages: Series A 1, Series B 1, Undisclosed 1

PicoJool $27.5M Series A Delos Data >$100M Funding Polaris Electro-Optics $50M Series B

Baillie GiffordLatest Sep 23

TEKEVER · $580M Series D Enveda · $311M Series E

3rounds

1led

AI 1Biotech 1Robotics 1

Series C+ 3

Sep 23, 2026

Details

New companies 3 · Follow-on 0

Stages: Series C+ 3

TEKEVER $580M Series D Enveda $311M Series E Crusoe $3.9B Series F (initial close; anticipated total)

Catalio Capital ManagementLatest Sep 23

Basecamp Research · $140M Series C Enveda · $311M Series E

3rounds

1led

Biotech 3

Series C+ 2, Series B 1

Sep 23, 2026

Details

New companies 3 · Follow-on 0

Stages: Series C+ 2, Series B 1

Basecamp Research $140M Series C Enveda $311M Series E Superluminal Medicines $60M Series B

Cherry VenturesLatest Sep 23

Spiich Labs · €3M Seed Integral · €18M Series A

3rounds

0led

AI 1Enterprise software 1Fintech 1

Seed 1, Series A 1, Undisclosed 1

Sep 23, 2026

Details

New companies 3 · Follow-on 0

Stages: Seed 1, Series A 1, Undisclosed 1

Spiich Labs €3M Seed Integral €18M Series A Resolutiion $10.4M Funding round

True VenturesLatest Sep 23

Basecamp Research · $140M Series C Enveda · $311M Series E

3rounds

1led

Biotech 2Edtech 1

Series C+ 2, Seed 1

Sep 23, 2026

Details

New companies 3 · Follow-on 0

Stages: Series C+ 2, Seed 1

Basecamp Research $140M Series C Enveda $311M Series E Aristotle $5M Seed

6 Degrees CapitalLatest Sep 22

Verda · $189M Series B and additional investment HeyDiga · €5.5M Seed

3rounds

1led

AI 2Developer tools 1

Seed 1, Series A 1, Series B 1

Sep 22, 2026

Details

New companies 3 · Follow-on 0

Stages: Seed 1, Series A 1, Series B 1

Verda $189M Series B and additional investment HeyDiga €5.5M Seed Conveo $50M Series A

FactoryLatest Sep 22

Snorkel AI · $350M Series E Noetive · $41M Seed

3rounds

0led

AI 3

Seed 1, Series B 1, Series C+ 1

Sep 22, 2026

Details

New companies 2 · Follow-on 1

Stages: Seed 1, Series B 1, Series C+ 1

Snorkel AI $350M Series E Noetive $41M Seed Gimlet Labs $300M Series B

HeadlineLatest Sep 22

Primo · $8M Seed Mithrl · $20M Series A

3rounds

2led

AI 1Cybersecurity 1Enterprise software 1

Seed 1, Series A 1, Undisclosed 1

Sep 22, 2026

Details

New companies 3 · Follow-on 0

Stages: Seed 1, Series A 1, Undisclosed 1

Primo $8M Seed Mithrl $20M Series A Exein $270M Undisclosed

Pear VCLatest Sep 22

Vals AI · $40M Series A Piston · $15M Series A

3rounds

0led

AI 1Fintech 1Healthtech 1

Series A 2, Series C+ 1

Sep 22, 2026

Details

New companies 1 · Follow-on 2

Stages: Series A 2, Series C+ 1

Vals AI $40M Series A Piston $15M Series A Forus $150M Series C

Prosperity7Latest Sep 22

Snorkel AI · $350M Series E Arcee AI · ≥$150M Series B

3rounds

0led

AI 3

Series B 2, Series C+ 1

Sep 22, 2026

Details

New companies 2 · Follow-on 1

Stages: Series B 2, Series C+ 1

Snorkel AI $350M Series E Arcee AI ≥$150M Series B Gimlet Labs $300M Series B

CRVLatest Sep 18

Raindrop · Undisclosed Series A Archy · $50M Series C

3rounds

1led

AI 1Consumer 1Healthtech 1

Series A 2, Series C+ 1

Sep 18, 2026

Details

New companies 3 · Follow-on 0

Stages: Series A 2, Series C+ 1

Raindrop Undisclosed Series A Archy $50M Series C Cradlewise $12M Series A

Radical VenturesLatest Sep 18

Mantic · $25M Seed Crusoe · $3.9B Series F (initial close; anticipated total)

3rounds

1led

AI 2Space tech 1

Series C+ 2, Seed 1

Sep 18, 2026

Details

New companies 3 · Follow-on 0

Stages: Series C+ 2, Seed 1

Mantic $25M Seed Crusoe $3.9B Series F (initial close; anticipated total)Pixxel $100M Series C

AvenirLatest Sep 17

Crusoe · $3.9B Series F (initial close; anticipated total)Cognition · >$2B Series E

3rounds

0led

AI 2Healthtech 1

Series C+ 3

Sep 17, 2026

Details

New companies 3 · Follow-on 0

Stages: Series C+ 3

Crusoe $3.9B Series F (initial close; anticipated total)Cognition >$2B Series E Inspiren $70M Series C

GICLatest Sep 17

Crusoe · $3.9B Series F (initial close; anticipated total)Temporal · $550M Series E

3rounds

0led

AI 2Developer tools 1

Series C+ 3

Sep 17, 2026

Details

New companies 1 · Follow-on 2

Stages: Series C+ 3

Crusoe $3.9B Series F (initial close; anticipated total)Temporal $550M Series E Harvey $550M Series H

Tiger GlobalLatest Sep 17

Crusoe · $3.9B Series F (initial close; anticipated total)Temporal · $550M Series E

3rounds

1led

AI 2Developer tools 1

Series C+ 2, Series B 1

Sep 17, 2026

Details

New companies 2 · Follow-on 1

Stages: Series C+ 2, Series B 1

Crusoe $3.9B Series F (initial close; anticipated total)Temporal $550M Series E Gimlet Labs $300M Series B

Scaleup Europe FundLatest Sep 15

EUCLYD · >€200M Series A Tandem Health · $100M Series B

3rounds

3led

AI 2Healthtech 1

Series A 1, Series B 1, Series C+ 1

Sep 15, 2026

Details

New companies 3 · Follow-on 0

Stages: Series A 1, Series B 1, Series C+ 1

EUCLYD >€200M Series A Tandem Health $100M Series B Mistral AI €3B Series D

Sapphire VenturesLatest Sep 14

Temporal · $550M Series E Harvey · $550M Series H

3rounds

0led

AI 2Developer tools 1

Series C+ 2, Series B 1

Sep 14, 2026

Details

New companies 2 · Follow-on 1

Stages: Series C+ 2, Series B 1

Temporal $550M Series E Harvey $550M Series H Gimlet Labs $300M Series B

HeliadLatest Sep 9

Dynamic Creatures · Undisclosed Seed Limetax · €36M Pre-seed equity and acquisition facility

3rounds

1led

AI 1Enterprise software 1Robotics 1

Pre-seed 2, Seed 1

Sep 9, 2026

Details

New companies 3 · Follow-on 0

Stages: Pre-seed 2, Seed 1

Dynamic Creatures Undisclosed Seed Limetax €36M Pre-seed equity and acquisition facility sci2sci €1.2M Pre-Seed

GV (Google Ventures)Latest Sep 30

Metaview · $60M Series C Snorkel AI · $350M Series E

2rounds

0led

AI 2

Series C+ 2

Sep 30, 2026

Details

New companies 1 · Follow-on 1

Stages: Series C+ 2

Metaview $60M Series C Snorkel AI $350M Series E

Iberis CapitalLatest Sep 30

Tryp.com · €1.9M €1.9 million funding round TEKEVER · $580M Series D

2rounds

0led

Robotics 1Travel tech 1

Series C+ 1, Undisclosed 1

Sep 30, 2026

Details

New companies 2 · Follow-on 0

Stages: Series C+ 1, Undisclosed 1

Tryp.com €1.9M €1.9 million funding round TEKEVER $580M Series D

Intel CapitalLatest Sep 30

CScale · $145M Series C Buildots · $130M Funding

2rounds

0led

Hardware 1Proptech 1

Series C+ 1, Undisclosed 1

Sep 30, 2026

Details

New companies 2 · Follow-on 0

Stages: Series C+ 1, Undisclosed 1

CScale $145M Series C Buildots $130M Funding

Intrepid Growth PartnersLatest Sep 30

Metaview · $60M Series C Exein · $270M Undisclosed

2rounds

0led

AI 1Cybersecurity 1

Series C+ 1, Undisclosed 1

Sep 30, 2026

Details

New companies 2 · Follow-on 0

Stages: Series C+ 1, Undisclosed 1

Metaview $60M Series C Exein $270M Undisclosed

OvermatchLatest Sep 30

Efficient Computer · $100M Additional funding Quartermaster · $140M Series B equity + debt facility

2rounds

0led

Defense tech 1Hardware 1

Series B 1, Undisclosed 1

Sep 30, 2026

Details

New companies 1 · Follow-on 1

Stages: Series B 1, Undisclosed 1

Efficient Computer $100M Additional funding Quartermaster $140M Series B equity + debt facility

“—” 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.