Most active investors · All time

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

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IBB VenturesLatest Aug 20

Nanolope · €800K Pre-seed Kalz · Undisclosed Pre-seed

3rounds

1led

Climate tech 3

Pre-seed 3

Aug 20, 2026

Details

New companies 3 · Follow-on 0

Stages: Pre-seed 3

Nanolope €800K Pre-seed Kalz Undisclosed Pre-seed Nox Mobility €2M Pre-Seed

Y Combinator (YC)Latest Aug 20

Apollo Atomics · $31M Seed Plume · €3.3M Seed

3rounds

0led

Climate tech 2Mobility 1

Seed 3

Aug 20, 2026

Details

New companies 3 · Follow-on 0

Stages: Seed 3

Apollo Atomics $31M Seed Plume €3.3M Seed Emobi $3.4M Seed

British Design FundLatest Aug 19

EcoNomad Solutions · £400K Investment and Innovate UK grant LabCycle · £430K Seed

3rounds

0led

Agritech 2Climate tech 1

Seed 2, Undisclosed 1

Aug 19, 2026

Details

New companies 3 · Follow-on 0

Stages: Seed 2, Undisclosed 1

EcoNomad Solutions £400K Investment and Innovate UK grant LabCycle £430K Seed Cordon Technologies £1M Seed

CoatueLatest Aug 12

FORM ENERGY · $750M Series G Base Power · $1B Series D

3rounds

0led

Climate tech 3

Series C+ 2, Growth 1

Aug 12, 2026

Details

New companies 3 · Follow-on 0

Stages: Series C+ 2, Growth 1

FORM ENERGY $750M Series G Base Power $1B Series D Sila $300M Growth

NGP Energy Capital ManagementLatest Aug 12

FORM ENERGY · $750M Series G Actuate Energy · Undisclosed Undisclosed

3rounds

0led

Climate tech 3

Series C+ 2, Undisclosed 1

Aug 12, 2026

Details

New companies 3 · Follow-on 0

Stages: Series C+ 2, Undisclosed 1

FORM ENERGY $750M Series G Actuate Energy Undisclosed Undisclosed X-energy $700M Series C-1 (final close)

ABBLatest Aug 6

LevelTen Energy · Undisclosed Strategic Gridcog · Undisclosed Strategic

3rounds

—led

Climate tech 3

Undisclosed 2, Growth 1

Aug 6, 2026

Details

New companies 3 · Follow-on 0

Stages: Undisclosed 2, Growth 1

LevelTen Energy Undisclosed Strategic Gridcog Undisclosed Strategic GridBeyond €12M Growth

Barclays Climate VenturesLatest Aug 6

Naked Energy · £8.9M Series B extension Advanced Electric Machines Group · £16M Funding round

3rounds

1led

Climate tech 3

Series B 2, Undisclosed 1

Aug 6, 2026

Details

New companies 3 · Follow-on 0

Stages: Series B 2, Undisclosed 1

Naked Energy £8.9M Series B extension Advanced Electric Machines Group £16M Funding round Iceotope Group $26M Series B

Lux CapitalLatest Aug 5

WindBorne Systems · $37M Series B CuspAI · $450M Series B

3rounds

—led

Climate tech 2AI 1

Series B 2, Series C+ 1

Aug 5, 2026

Details

New companies 3 · Follow-on 0

Stages: Series B 2, Series C+ 1

WindBorne Systems $37M Series B CuspAI $450M Series B Helion $465M Series G

Atreides ManagementLatest Aug 3

Valar Atomics · $1B Series B Sila · $300M Growth

3rounds

0led

Climate tech 2AI 1

Series B 2, Growth 1

Aug 3, 2026

Details

New companies 3 · Follow-on 0

Stages: Series B 2, Growth 1

Valar Atomics $1B Series B Sila $300M Growth Positron AI $230M Series B

LightspeedLatest Aug 3

Base Power · $1B Series D Proxima Fusion · €411M Growth

3rounds

0led

Climate tech 3

Series C+ 2, Growth 1

Aug 3, 2026

Details

New companies 3 · Follow-on 0

Stages: Series C+ 2, Growth 1

Base Power $1B Series D Proxima Fusion €411M Growth Helion $465M Series G

Decarbonization PartnersLatest Jul 30

Antora Energy · $550M Series C EPG · $100M Series B

3rounds

0led

AI 1Climate tech 1Enterprise software 1

Series C+ 2, Series B 1

Jul 30, 2026

Details

New companies 3 · Follow-on 0

Stages: Series C+ 2, Series B 1

Antora Energy $550M Series C EPG $100M Series B osapiens $100M Series C

CDP Venture CapitalLatest Jul 21

Circular Materials · €11.8M Undisclosed Proxima Fusion · €411M Growth

3rounds

—led

Climate tech 2Foodtech 1

Growth 1, Series B 1, Undisclosed 1

Jul 21, 2026

Details

New companies 3 · Follow-on 0

Stages: Growth 1, Series B 1, Undisclosed 1

Circular Materials €11.8M Undisclosed Proxima Fusion €411M Growth Foreverland €6M Series B

Balderton CapitalLatest Jul 7

Proxima Fusion · €411M Growth Fuse Energy · $70M Undisclosed

3rounds

1led

Climate tech 3

Undisclosed 2, Growth 1

Jul 7, 2026

Details

New companies 2 · Follow-on 1

Stages: Undisclosed 2, Growth 1

Proxima Fusion €411M Growth Fuse Energy $70M Undisclosed Fuse Energy $10M Follow-on investment

Bayern KapitalLatest Jul 7

Proxima Fusion · €411M Growth Twogee Biotech · €2.2M Seed

3rounds

0led

Climate tech 2Space tech 1

Growth 1, Seed 1, Series B 1

Jul 7, 2026

Details

New companies 3 · Follow-on 0

Stages: Growth 1, Seed 1, Series B 1

Proxima Fusion €411M Growth Twogee Biotech €2.2M Seed OroraTech Undisclosed Series B extended to €37m cumulative total

The Footprint FirmLatest Jun 15

Vaja AB · €3.1M Seed TetraxAI · €1.2M Pre-Seed

3rounds

0led

Climate tech 2Biotech 1

Pre-seed 1, Seed 1, Series A 1

Jun 15, 2026

Details

New companies 3 · Follow-on 0

Stages: Pre-seed 1, Seed 1, Series A 1

Vaja AB €3.1M Seed TetraxAI €1.2M Pre-Seed Octarine Bio €5M Series A extension

Collaborative FundLatest May 31

Fuse Energy · $30M Series B extension Alva Energy · $33M Series A

3rounds

0led

Climate tech 2Mobility 1

Seed 1, Series A 1, Series B 1

May 31, 2026

Details

New companies 3 · Follow-on 0

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

Fuse Energy $30M Series B extension Alva Energy $33M Series A Emobi $3.4M Seed

Shield CapitalLatest May 12

Star Catcher Industries · $65M Series A Chariot Defense · $34M Series A

3rounds

—led

Defense tech 2Space tech 1

Series A 3

May 12, 2026

Details

New companies 3 · Follow-on 0

Stages: Series A 3

Star Catcher Industries $65M Series A Chariot Defense $34M Series A Seasats $20M Series A

byFoundersLatest Apr 30

Spiral Hydrogen · €2.7M Pre-Seed Verda · $117M Undisclosed

3rounds

—led

Climate tech 2AI 1

Pre-seed 2, Undisclosed 1

Apr 30, 2026

Details

New companies 3 · Follow-on 0

Stages: Pre-seed 2, Undisclosed 1

Spiral Hydrogen €2.7M Pre-Seed Verda $117M Undisclosed Willo €2.9M Pre-Seed

Enterprise IrelandLatest Apr 1

Manna Air Delivery · $50M Series B GridBeyond · €12M Growth

3rounds

—led

Climate tech 1Healthtech 1Logistics 1

Growth 1, Seed 1, Series B 1

Apr 1, 2026

Details

New companies 3 · Follow-on 0

Stages: Growth 1, Seed 1, Series B 1

Manna Air Delivery $50M Series B GridBeyond €12M Growth Nocomed €650K Seed

Decisive PointLatest Mar 10

Lux Aeterna · $10M Seed Project Omega · $12M Undisclosed

3rounds

—led

Climate tech 2Space tech 1

Seed 1, Series A 1, Undisclosed 1

Mar 10, 2026

Details

New companies 3 · Follow-on 0

Stages: Seed 1, Series A 1, Undisclosed 1

Lux Aeterna $10M Seed Project Omega $12M Undisclosed Standard Nuclear $140M Series A

Endeavor CatalystLatest Oct 20

Electric Plant · $11.2M Seed Xoople · $130M Series B

2rounds

0led

Agritech 1Space tech 1

Seed 1, Series B 1

Oct 20, 2026

Details

New companies 2 · Follow-on 0

Stages: Seed 1, Series B 1

Electric Plant $11.2M Seed Xoople $130M Series B

Ludlow VenturesLatest Oct 20

Electric Plant · $11.2M Seed Artemis · $6M Series A

2rounds

0led

Agritech 1Climate tech 1

Seed 1, Series A 1

Oct 20, 2026

Details

New companies 2 · Follow-on 0

Stages: Seed 1, Series A 1

Electric Plant $11.2M Seed Artemis $6M Series A

NextSTEPLatest Oct 20

Ganiga · €1.5M Undisclosed Ganiga · Undisclosed Pre-seed financing

2rounds

0led

Climate tech 2

Pre-seed 1, Undisclosed 1

Oct 20, 2026

Details

New companies 1 · Follow-on 1

Stages: Pre-seed 1, Undisclosed 1

Ganiga €1.5M Undisclosed Ganiga Undisclosed Pre-seed financing

Ponderosa VenturesLatest Oct 20

Electric Plant · $11.2M Seed CREW Carbon · $25M Series A

2rounds

0led

Agritech 1Climate tech 1

Seed 1, Series A 1

Oct 20, 2026

Details

New companies 2 · Follow-on 0

Stages: Seed 1, Series A 1

Electric Plant $11.2M Seed CREW Carbon $25M Series A

Equal VenturesLatest Oct 15

Stand · $70M Series C Odyssey Energy Solutions · $74M Funding

2rounds

0led

Climate tech 1Fintech 1

Series C+ 1, Undisclosed 1

Oct 15, 2026

Details

New companies 2 · Follow-on 0

Stages: Series C+ 1, Undisclosed 1

Stand $70M Series C Odyssey Energy Solutions $74M Funding

Inspired CapitalLatest Oct 15

Stand · $70M Series C Sora Fuel · $14.6M Undisclosed

2rounds

0led

Climate tech 1Fintech 1

Series C+ 1, Undisclosed 1

Oct 15, 2026

Details

New companies 2 · Follow-on 0

Stages: Series C+ 1, Undisclosed 1

Stand $70M Series C Sora Fuel $14.6M Undisclosed

b2ventureLatest Oct 14

Ambio · €5.1M Seed 1KOMMA5° · ~€70M Equity financing

2rounds

2led

Climate tech 2

Seed 1, Undisclosed 1

Oct 14, 2026

Details

New companies 2 · Follow-on 0

Stages: Seed 1, Undisclosed 1

Ambio €5.1M Seed 1KOMMA5° ~€70M Equity financing

Bosch VenturesLatest Oct 14

Rabot Energy · $50M Series B Cloover · $1.2B Series A+Debt

2rounds

0led

Climate tech 1Fintech 1

Series B 1, Undisclosed 1

Oct 14, 2026

Details

New companies 2 · Follow-on 0

Stages: Series B 1, Undisclosed 1

Rabot Energy $50M Series B Cloover $1.2B Series A+Debt

DeepTech & Climate Fonds (DTCF)Latest Oct 14

Rabot Energy · $50M Series B UniverCell · €30M Series B

2rounds

0led

Climate tech 2

Series B 2

Oct 14, 2026

Details

New companies 2 · Follow-on 0

Stages: Series B 2

Rabot Energy $50M Series B UniverCell €30M Series B

Foxglove CapitalLatest Oct 14

HydRegen · $8M Series A first close Type One Energy · $82.4M Seed (final close)

2rounds

0led

Biotech 1Climate tech 1

Seed 1, Series A 1

Oct 14, 2026

Details

New companies 2 · Follow-on 0

Stages: Seed 1, Series A 1

HydRegen $8M Series A first close Type One Energy $82.4M Seed (final close)

“—” 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.