30 Best Active Energy & Nuclear Investors in 2025
Last update to the database: Apr 7, 2026. See changelog.
Investor Rankings are calculated using our Seedtable Score – a 1 to 100 score that uses quantitative and qualitative data points (like the size of their fund or the quality of the companies they invested in) to signal the strength behind an investor. A score closer to 100 indicates an investor is worth watching closely.
Seedtable Raise
DownloadSeedtable Raise includes a comprehensive database of 3,000+ active European and global investors.
List of 30 top VCs
Prima Materia is a European venture capital fund based in Stockholm. They invest in early and growth stages, including Series A and B, across sectors such as manufacturing, climate tech, AI, health tech, and gaming. The fund has supported companies like H2 Green Steel, Northvolt, and Homa Games. Prima Materia aims to back ventures that drive significant advancements in their industries.
Offices:
Stockholm (HQ)
Investment Stage:
Series A, Series B, Unknown
Check Size:
$100k - $1B
Industries:
Climate Tech & Green Tech, Health Tech, Govtech
Top investments in :
Accel is an early and growth-stage venture capital firm that helps a global community of entrepreneurs.
Offices:
Palo Alto (HQ)
London
Investment Stage:
Pre Seed, Seed, Series A, Series B, Series C, Series D, Series E, Series F, Series G, Unknown
Check Size:
$100k - $1B
Industries:
Climate Tech & Green Tech, Health Tech, FinTech
Top investments in :
Lakestar is a venture capital firm investing in digital and technology companies in Europe.
Offices:
Zürich (HQ)
Investment Stage:
Pre Seed, Seed, Series A, Series B, Series C, Series D, Series E, Series F, Unknown
Check Size:
$100k - $1B
Industries:
Climate Tech & Green Tech, Health Tech, Edtech
Top investments in :
OMERS Ventures is the venture investment arm of OMERS. It focuses on technology companies.
Offices:
Toronto (HQ)
London
Palo Alto
Investment Stage:
Seed, Series A, Series B, Series C, Series D, Series E, Unknown
Check Size:
$100k - $1B
Industries:
Health Tech, FinTech, Foodtech
Top investments in :
A European venture capital firm investing in technology companies.
Offices:
No data available
Investment Stage:
No data available
Check Size:
$100k - $500k
Industries:
No data available
Top investments in :
No data available
A European venture capital firm investing in technology companies.
Offices:
London (HQ)
Stockholm
New York
London (HQ)
Stockholm
New York
Investment Stage:
Debt Financing, Pre Seed, Seed, Series A, Series B, Series C, Series D, Series E, Series F, Series G, Series H, Unknown
Check Size:
$100k - $1B
Industries:
Climate Tech & Green Tech, Health Tech, Edtech
Top investments in :
Sequoia Capital is a venture capital firm that has invested in companies like Google, Apple, Cisco, YouTube, AirBnB, and WhatsApp. The firm was founded in 1972 by Donald Valentine, and companies backed by Sequoia have created over $3.3 trillion dollars in market capitalization.
Offices:
No data available
Investment Stage:
No data available
Check Size:
$100k - $500k
Industries:
No data available
Top investments in :
No data available
Sequoia Capital is a venture capital firm that has invested in companies like Google, Apple, Cisco, YouTube, AirBnB, and WhatsApp. The firm was founded in 1972 by Donald Valentine, and companies backed by Sequoia have created over $3.3 trillion dollars in market capitalization.
Offices:
San Mateo (HQ)
London
San Mateo (HQ)
London
Investment Stage:
Pre Seed, Seed, Series A, Series B, Series C, Series D, Series E, Series F, Unknown
Check Size:
$2.5M - $500M
Industries:
FinTech, Gaming, AI
Top investments in :
UK-based venture capital firm investing on early-stage startups in Europe.
Offices:
London (HQ)
Investment Stage:
Seed, Series A, Series B, Series C, Unknown
Check Size:
$100k - $50M
Industries:
Climate Tech & Green Tech, Health Tech, FinTech
Top investments in :
A pioneering investment fund dedicated to advancing cutting-edge technologies and sustainable solutions that address the critical challenges of climate change.
Offices:
No data available
Investment Stage:
Seed, Series A, Series B
Check Size:
$10M - $70M
Industries:
Climate Tech & Green Tech, FinTech, Space Tech
Top investments in :
Founded in 2018, Coinbase Ventures is the investment arm of Coinbase and is based in San Francisco, California, United States. The firm seeks to invests in early-stage companies operating in cryptocurrency and blockchain sectors.
Offices:
No data available
Investment Stage:
No data available
Check Size:
$100k - $500k
Industries:
No data available
Top investments in :
No data available
Founded in 2018, Coinbase Ventures is the investment arm of Coinbase and is based in San Francisco, California, United States. The firm seeks to invests in early-stage companies operating in cryptocurrency and blockchain sectors.
Offices:
No data available
Investment Stage:
Pre Seed, Seed, Series A, Series B, Series E, Unknown
Check Size:
$5M - $250M
Industries:
FinTech, Crypto & web3, Gaming
Top investments in :
Index Ventures is a venture capital firm that invests in start-ups with the potential to become global businesses. It was founded in 1996 and has locations all over the world.
Offices:
No data available
Investment Stage:
No data available
Check Size:
$100k - $500k
Industries:
No data available
Top investments in :
No data available
Index Ventures is a venture capital firm that invests in start-ups with the potential to become global businesses. It was founded in 1996 and has locations all over the world.
Offices:
London (HQ)
San Francisco
New York
London (HQ)
San Francisco
New York
Investment Stage:
Pre Seed, Seed, Series A, Series B, Series C, Series D, Series E, Series F, Unknown
Check Size:
$100k - $500M
Industries:
Climate Tech & Green Tech, Health Tech, Edtech
Top investments in :
Heartcore is a venture capital fund based in Copenhagen. They invest in startups at stages ranging from pre-seed to series F, with check sizes between $300,000 and $6 million. Heartcore focuses on industries including tech, health, real estate, finance, and entertainment. Their portfolio includes FlexAI, Zefir, Travel Perk, Podimo, and Taster. They aim to support founders in creating impactful consumer-focused brands, helping driven entrepreneurs turn their ideas into successful businesses.
Offices:
Copenhagen (HQ)
Berlin
Paris
Stockholm
Lisbon
Investment Stage:
Pre Seed, Seed, Series A, Series B, Series C, Series D, Series E, Series F, Unknown
Check Size:
$100k - $500M
Industries:
Climate Tech & Green Tech, Health Tech, Edtech
Top investments in :
Notion Capital is a venture capital firm based in London, England, investing exclusively in early stage business-to-business (B2B), software as a service (SaaS) businesses.
Offices:
No data available
Investment Stage:
No data available
Check Size:
$100k - $500k
Industries:
No data available
Top investments in :
No data available
Notion Capital is a venture capital firm based in London, England, investing exclusively in early stage business-to-business (B2B), software as a service (SaaS) businesses.
Offices:
London (HQ)
London (HQ)
Investment Stage:
Pre Seed, Seed, Series A, Series B, Series C, Series D, Series E, Unknown
Check Size:
$100k - $250M
Industries:
Climate Tech & Green Tech, Health Tech, Edtech
Top investments in :
Creandum is a venture capital that is interested in investing in early-stage ventures with innovative technology companies
Offices:
Stockholm (HQ)
Berlin
London
San Francisco
Investment Stage:
Pre Seed, Seed, Series A, Series B, Series C, Series D, Unknown
Check Size:
$100k - $1B
Industries:
Climate Tech & Green Tech, Health Tech, Edtech
Top investments in :
A European private equity firm focused on the mid-market segment, financing SMBs at different stages of growth.
Offices:
No data available
Investment Stage:
Seed, Series A, Series B, Series C, Series D, Series E, Series F
Check Size:
$2.5M - $250M
Industries:
Health Tech, FinTech, Crypto & web3
Top investments in :
Germany-based venture capital firm focused on European tech startups.
Offices:
Berlin (HQ)
Munich
London
Paris
Investment Stage:
Pre Seed, Seed, Series A, Series B, Series C, Series D, Series E, Series F, Unknown
Check Size:
$100k - $500M
Industries:
Climate Tech & Green Tech, Health Tech, Edtech
Top investments in :
Plural is a London-based venture capital fund supporting founders using technology to drive global change. Launched in June 2022, Plural invests from pre-seed to Series B stages, focusing on sectors like health tech, climate tech, fintech, and robotics. The firm aims to create significant impact by addressing systemic risks and reducing opportunity gaps. Portfolio companies include Robin AI, Proxima Fusion, and Isometric.
Offices:
London (HQ)
Investment Stage:
Pre Seed, Seed, Series A, Series B, Unknown
Check Size:
$2.5M - $70M
Industries:
Climate Tech & Green Tech, Health Tech, FinTech
Top investments in :
European Bank for Reconstruction and Development is a London-based investment firm and economic development bank.
Offices:
No data available
Investment Stage:
Debt Financing, Series A, Series D, Unknown
Check Size:
$30M - $250M
Industries:
Climate Tech & Green Tech, Foodtech, Food Delivery
Top investments in :
Local Globe is a venture capital fund based in London, investing in companies from pre-seed to Series C stages. They support businesses across diverse industries, including e-commerce, mobility, and climate tech. Notable investments include Qogita and Sylvera. Local Globe aims to help young companies grow and make a positive impact in their sectors.
Offices:
London (HQ)
Investment Stage:
Pre Seed, Seed, Series A, Series B, Series C, Unknown
Check Size:
$100k - $250M
Industries:
Climate Tech & Green Tech, Health Tech, Edtech
Top investments in :
HV Capital is a venture capital and private equity firm in Müchen Bayern.
Offices:
Berlin
Munich (HQ)
Investment Stage:
Pre Seed, Seed, Series A, Series B, Series C, Series D, Series E, Series F, Unknown
Check Size:
$100k - $250M
Industries:
Climate Tech & Green Tech, Health Tech, Edtech
Top investments in :
Icebreaker is a venture capital fund based in Helsinki. They invest in early-stage tech companies, ranging from idea-stage to Series B, with check sizes between €150,000 and €800,000. Their focus includes sectors like AI, health tech, and cybersecurity. Icebreaker has backed companies such as Fixably, Alvin, eBrands, Accurator, and Klaus, seeking teams with deep domain expertise and ambitions to build globally competitive tech firms.
Offices:
Helsinki (HQ)
Stockholm
Tallinn
Investment Stage:
Angel, Pre Seed, Seed, Series A, Series B, Unknown
Check Size:
$100k - $40M
Industries:
Climate Tech & Green Tech, Health Tech, Edtech
Top investments in :
Ribbit Capital is a global venture capital firm focused on fintech (financial technology). It was founded in 2012 and is located in Palo Alto, California.
Offices:
No data available
Investment Stage:
No data available
Check Size:
$100k - $500k
Industries:
No data available
Top investments in :
No data available
Tiger Global is an investment firm that was founded in 2001.
Offices:
No data available
Investment Stage:
No data available
Check Size:
$100k - $500k
Industries:
No data available
Top investments in :
No data available
Insight Venture Partners is a New York-based venture capital fund investing in technology and software companies from seed to series G. They support sectors like data analytics, cloud services, and fintech without imposing a set check size limit. Notable investments include BlaBlaCar and Checkout. Insight Venture Partners provides financial backing and industry expertise to help companies scale and succeed.
Offices:
New York (HQ)
Investment Stage:
Seed, Series A, Series B, Series C, Series D, Series E, Series G, Unknown
Check Size:
$100k - $1B
Industries:
Climate Tech & Green Tech, Health Tech, Edtech
Top investments in :
Ribbit Capital is a global venture capital firm focused on fintech (financial technology). It was founded in 2012 and is located in Palo Alto, California.
Offices:
Palo Alto (HQ)
Palo Alto (HQ)
Investment Stage:
Seed, Series A, Series B, Series C, Series D, Series E, Unknown
Check Size:
$100k - $1B
Industries:
Health Tech, FinTech, Crypto & web3
Top investments in :
Tiger Global is an investment firm that was founded in 2001.
Offices:
No data available
Investment Stage:
Seed, Series A, Series B, Series C, Series D, Series E, Series H, Unknown
Check Size:
$100k - $500M
Industries:
CPG & Consumer Goods, AI, Fashion
Top investments in :