Most active investors · All time

Ranked by rounds participated in, from announcements across all periods. Lead counts include only confirmed lead roles.

Sutter Hill VenturesLatest Sep 30

CScale · $145M Series C Celero Communications · $275M Series C

6rounds

0led

Hardware 4AI 1Climate tech 1

Series C+ 5, Growth 1

Sep 30, 2026

Details

New companies 6 · Follow-on 0

Stages: Series C+ 5, Growth 1

CScale $145M Series C Celero Communications $275M Series C Sila $300M Growth

Toyota VenturesLatest Sep 30

Efficient Computer · $100M Additional funding Efficient Computer · $60M Series A

6rounds

0led

Hardware 2AI 1Climate tech 1

Seed 2, Series A 2, Series C+ 1, Undisclosed 1

Sep 30, 2026

Details

New companies 5 · Follow-on 1

Stages: Seed 2, Series A 2, Series C+ 1, Undisclosed 1

Efficient Computer $100M Additional funding Efficient Computer $60M Series A Stoke Space Technologies $860M Series D

Foothill VenturesLatest Sep 25

Overlord Labs, Inc. · $4.4M Seed extension Nexstrom · $12M Seed

6rounds

0led

Hardware 4Healthtech 1Industrial tech 1

Seed 2, Series A 2, Series B 1, Series C+ 1

Sep 25, 2026

Details

New companies 6 · Follow-on 0

Stages: Seed 2, Series A 2, Series B 1, Series C+ 1

Overlord Labs, Inc. $4.4M Seed extension Nexstrom $12M Seed Quintessent $40M Series A

Socratic PartnersLatest Sep 24

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

6rounds

1led

AI 3Hardware 3

Series A 2, Series B 2, Series C+ 1, Undisclosed 1

Sep 24, 2026

Details

New companies 6 · Follow-on 0

Stages: Series A 2, Series B 2, Series C+ 1, Undisclosed 1

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

Invest-NLLatest Sep 22

Morphotonics · >€40M Series B CuspAI · $450M Series B

6rounds

0led

Hardware 3AI 1Industrial tech 1

Series B 3, Growth 1, Series A 1, Series C+ 1

Sep 22, 2026

Details

New companies 6 · Follow-on 0

Stages: Series B 3, Growth 1, Series A 1, Series C+ 1

Morphotonics >€40M Series B CuspAI $450M Series B Nearfield Instruments $380M Series D

QuantonationLatest Sep 17

QSENSATO · €1M SAFE investment ZuriQ · $25.5M Seed

6rounds

1led

Hardware 5Fintech 1

Series A 2, Growth 1, Seed 1, Series B 1, Undisclosed 1

Sep 17, 2026

Details

New companies 6 · Follow-on 0

Stages: Series A 2, Growth 1, Seed 1, Series B 1, Undisclosed 1

QSENSATO €1M SAFE investment ZuriQ $25.5M Seed Quobly €115M Series A

Lowercarbon CapitalLatest Sep 16

Rune · $40M Series A Antora Energy · $550M Series C

6rounds

0led

Climate tech 5Hardware 1

Series A 3, Series C+ 2, Series B 1

Sep 16, 2026

Details

New companies 6 · Follow-on 0

Stages: Series A 3, Series C+ 2, Series B 1

Rune $40M Series A Antora Energy $550M Series C Oratomic $300M Series A

MediaTekLatest Sep 10

Ayar Labs · $150M Additional funding ChipAgents · $60M Series A+

6rounds

—led

Hardware 5AI 1

Series A 4, Series C+ 1, Undisclosed 1

Sep 10, 2026

Details

New companies 5 · Follow-on 1

Stages: Series A 4, Series C+ 1, Undisclosed 1

Ayar Labs $150M Additional funding ChipAgents $60M Series A+OXMIQ Labs $35M Series A

Qatar Investment AuthorityLatest Sep 10

Positron AI · ≤$875M Series C and Series C-1 financing package Iceye · €1B Undisclosed

6rounds

0led

Hardware 3Space tech 2AI 1

Series C+ 5, Undisclosed 1

Sep 10, 2026

Details

New companies 5 · Follow-on 1

Stages: Series C+ 5, Undisclosed 1

Positron AI ≤$875M Series C and Series C-1 financing package Iceye €1B Undisclosed SambaNova $1B Series F

Khosla VenturesLatest Aug 19

Sonic Fire Tech · $15M Seed WindBorne Systems · $37M Series B

6rounds

—led

Climate tech 2Defense tech 2Hardware 1

Series C+ 3, Seed 1, Series A 1, Series B 1

Aug 19, 2026

Details

New companies 6 · Follow-on 0

Stages: Series C+ 3, Seed 1, Series A 1, Series B 1

Sonic Fire Tech $15M Seed WindBorne Systems $37M Series B Oratomic $300M Series A

Kleiner PerkinsLatest Aug 18

Etched · $700M Series D K2 Space · $500M Series D

6rounds

0led

AI 2Defense tech 1Hardware 1

Series C+ 3, Series B 2, Seed 1

Aug 18, 2026

Details

New companies 6 · Follow-on 0

Stages: Series C+ 3, Series B 2, Seed 1

Etched $700M Series D K2 Space $500M Series D CuspAI $450M Series B

Menlo VenturesLatest Aug 12

Heaviside Industries · $60M Series B Walden Robotics · $300M Undisclosed

6rounds

—led

Defense tech 3Climate tech 1Robotics 1

Series C+ 2, Seed 1, Series A 1, Series B 1, Undisclosed 1

Aug 12, 2026

Details

New companies 5 · Follow-on 1

Stages: Series C+ 2, Seed 1, Series A 1, Series B 1, Undisclosed 1

Heaviside Industries $60M Series B Walden Robotics $300M Undisclosed Westmag $11M Seed

BlackRockLatest Jul 8

SambaNova · $1B Series F Armada · $230M Series B

6rounds

—led

AI 3Hardware 2Space tech 1

Series C+ 3, Growth 2, Series B 1

Jul 8, 2026

Details

New companies 5 · Follow-on 1

Stages: Series C+ 3, Growth 2, Series B 1

SambaNova $1B Series F Armada $230M Series B Astranis $450M Series E

ARK InvestLatest Oct 19

Tenstorrent · $1.5B Series E K2 Space · $500M Series D

5rounds

0led

AI 3Logistics 1Space tech 1

Series A 2, Series C+ 2, Series B 1

Oct 19, 2026

Details

New companies 5 · Follow-on 0

Stages: Series A 2, Series C+ 2, Series B 1

Tenstorrent $1.5B Series E K2 Space $500M Series D Hydra Host $100M Series A

DCVCLatest Oct 8

Universal Quantum · >$100M Series A Callosum · $100M Seed

5rounds

1led

Hardware 3Agritech 1AI 1

Series C+ 3, Seed 1, Series A 1

Oct 8, 2026

Details

New companies 5 · Follow-on 0

Stages: Series C+ 3, Seed 1, Series A 1

Universal Quantum >$100M Series A Callosum $100M Seed Atom Computing $100M Series C

Union Square VenturesLatest Oct 8

Mana Battery · Undisclosed Seed financing (investment amount undisclosed)Efficient Computer · $100M Additional funding

5rounds

0led

Hardware 3Climate tech 2

Series A 3, Seed 1, Undisclosed 1

Oct 8, 2026

Details

New companies 4 · Follow-on 1

Stages: Series A 3, Seed 1, Undisclosed 1

Mana Battery Undisclosed Seed financing (investment amount undisclosed)Efficient Computer $100M Additional funding Rune $40M Series A

Venture KickLatest Sep 28

RheoCarti · CHF 150K Venture Kick support Stellar Alpina · CHF 150K Venture Kick funding

5rounds

1led

Hardware 2Healthtech 2Space tech 1

Undisclosed 3, Pre-seed 1, Seed 1

Sep 28, 2026

Details

New companies 5 · Follow-on 0

Stages: Undisclosed 3, Pre-seed 1, Seed 1

RheoCarti CHF 150K Venture Kick support Stellar Alpina CHF 150K Venture Kick funding Qendra €162K Undisclosed

8VCLatest Sep 24

Prime Minute · $15M Pre-Seed Sila · $300M Growth

5rounds

0led

Climate tech 2Defense tech 1Hardware 1

Series B 2, Growth 1, Pre-seed 1, Series C+ 1

Sep 24, 2026

Details

New companies 5 · Follow-on 0

Stages: Series B 2, Growth 1, Pre-seed 1, Series C+ 1

Prime Minute $15M Pre-Seed Sila $300M Growth Fractile $220M Series B

TechstarsLatest Sep 24

Locus Lock · Undisclosed Strategic funding O-ID · $1M Pre-seed

5rounds

0led

Climate tech 1Defense tech 1Enterprise software 1

Seed 3, Pre-seed 1, Undisclosed 1

Sep 24, 2026

Details

New companies 5 · Follow-on 0

Stages: Seed 3, Pre-seed 1, Undisclosed 1

Locus Lock Undisclosed Strategic funding O-ID $1M Pre-seed Boldr $5M Seed+

PXN VenturesLatest Sep 23

CSignum · £2.6M Follow-on funding SCI Semiconductor · £5M Funding round

5rounds

2led

Hardware 2Biotech 1Climate tech 1

Undisclosed 3, Seed 2

Sep 23, 2026

Details

New companies 5 · Follow-on 0

Stages: Undisclosed 3, Seed 2

CSignum £2.6M Follow-on funding SCI Semiconductor £5M Funding round Advanced Electric Machines Group £16M Funding round

European Investment BankLatest Sep 22

Morphotonics · >€40M Series B HighLife · €80M Financing round

5rounds

0led

Healthtech 2Defense tech 1Industrial tech 1

Series C+ 2, Undisclosed 2, Series B 1

Sep 22, 2026

Details

New companies 5 · Follow-on 0

Stages: Series C+ 2, Undisclosed 2, Series B 1

Morphotonics >€40M Series B HighLife €80M Financing round WISE €30M Series D

DFJ GrowthLatest Sep 17

Impulse Space · $308M Series D extension Positron AI · ≤$875M Series C and Series C-1 financing package

5rounds

0led

Defense tech 2AI 1Hardware 1

Series C+ 4, Series B 1

Sep 17, 2026

Details

New companies 4 · Follow-on 1

Stages: Series C+ 4, Series B 1

Impulse Space $308M Series D extension Positron AI ≤$875M Series C and Series C-1 financing package Cambridge Aerospace $300M Series C

Engine VenturesLatest Sep 17

CorePower Magnetics · $10.6M Financing Superlight · $21M Series A

5rounds

1led

AI 1Climate tech 1Hardware 1

Series A 3, Seed 1, Undisclosed 1

Sep 17, 2026

Details

New companies 5 · Follow-on 0

Stages: Series A 3, Seed 1, Undisclosed 1

CorePower Magnetics $10.6M Financing Superlight $21M Series A Foundation Alloy $22M Series A

imec.xpandLatest Sep 15

EUCLYD · >€200M Series A NEURA Robotics · $1.4B Series C

5rounds

0led

Hardware 3AI 1Robotics 1

Series A 3, Seed 1, Series C+ 1

Sep 15, 2026

Details

New companies 5 · Follow-on 0

Stages: Series A 3, Seed 1, Series C+ 1

EUCLYD >€200M Series A NEURA Robotics $1.4B Series C Invisix €20M Seed

Matter Venture PartnersLatest Sep 15

Delos Data · >$100M Funding TYLsemi · $43M Undisclosed

5rounds

—led

Hardware 3AI 2

Series A 3, Undisclosed 2

Sep 15, 2026

Details

New companies 5 · Follow-on 0

Stages: Series A 3, Undisclosed 2

Delos Data >$100M Funding TYLsemi $43M Undisclosed OpenLight $50M Series A1

Flume VenturesLatest Sep 10

Positron AI · ≤$875M Series C and Series C-1 financing package Heaviside Industries · $60M Series B

5rounds

0led

AI 2Defense tech 2Hardware 1

Series A 2, Series B 2, Series C+ 1

Sep 10, 2026

Details

New companies 3 · Follow-on 2

Stages: Series A 2, Series B 2, Series C+ 1

Positron AI ≤$875M Series C and Series C-1 financing package Heaviside Industries $60M Series B Hydra Host $100M Series A

CapitalGLatest Sep 9

Celero Communications · $275M Series C Base Power · $1B Series D

5rounds

1led

AI 1Climate tech 1Hardware 1

Series C+ 4, Series B 1

Sep 9, 2026

Details

New companies 5 · Follow-on 0

Stages: Series C+ 4, Series B 1

Celero Communications $275M Series C Base Power $1B Series D K2 Space $500M Series D

Bosch VenturesLatest Sep 2

iPRONICS · $125M Series B Point2 Technology · $136M Series B

5rounds

0led

Hardware 3AI 2

Series A 2, Series B 2, Series C+ 1

Sep 2, 2026

Details

New companies 5 · Follow-on 0

Stages: Series A 2, Series B 2, Series C+ 1

iPRONICS $125M Series B Point2 Technology $136M Series B Quantum Motion $160M Series C

John DoerrLatest Aug 26

Voya Energy · $35M Series A Antora Energy · $550M Series C

5rounds

0led

Climate tech 3AI 2

Series A 2, Series B 2, Series C+ 1

Aug 26, 2026

Details

New companies 5 · Follow-on 0

Stages: Series A 2, Series B 2, Series C+ 1

Voya Energy $35M Series A Antora Energy $550M Series C CuspAI $450M Series B

AltimeterLatest Aug 19

Castelion · $1B Series C Base Power · $1B Series D

5rounds

0led

AI 1Climate tech 1Defense tech 1

Series C+ 4, Series B 1

Aug 19, 2026

Details

New companies 5 · Follow-on 0

Stages: Series C+ 4, Series B 1

Castelion $1B Series C Base Power $1B Series D K2 Space $500M Series D

“—” 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.