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Mana Ventures

Pre-Seed Seed Series A

Venture firm focused on supporting founders from inception through scaling

San Francisco
AI/ML · SaaS/Software +8
Early Stage · Operator-Led

Manta Ray

Seed Series A

Backing mission-driven founders addressing significant global challenges through applying leading edge technologies.

London
DeepTech · AI/ML +8
Deeptech · Global Challenges

Marathon Venture Capital

Pre-Seed Seed Series A

Seed-stage fund backing ambitious Greek founders building world-class technology

Athens
Healthtech · Biotech +14
Europe-Focused · Network-Driven

MaRS Investment Accelerator Fund (IAF)

Pre-Seed Seed

Ontario-focused evergreen early-stage fund launched in 2008; invests C$50K–C$500K in sector-agnostic software, hardware, and emerging tech from first cheque through seed.

Toronto · Waterloo +1
SaaS/Software · Hardware +1
Evergreen Fund · Sector-Agnostic

Marunouchi Innovation Partners

Series B Series C Series D

Tokyo-based growth fund backed by Mitsubishi Corporation investing globally in climate tech decarbonization startups.

Tokyo · Palo Alto +1
ClimateTech · DeepTech +7
Corporate VC · Growth Stage

Mass General Brigham Ventures

Seed Series A

Hospital-affiliated VC investing in seed and Series A life science companies built on Mass General Brigham research and intellectual property.

Somerville
BioTech · HealthTech +2
Corporate VC · University Spin-outs

Massive Tech Ventures

Seed Series A Series B

Early-stage US venture firm backing technology startups, with portfolio spanning AI, robotics, space tech, and productivity software.

Bainbridge Island
AI/ML · Robotics +6
Founder-Led · Early Stage

MassVentures

Pre-Seed Seed

Quasi-public Massachusetts VC funding seed-stage deep tech academic spinouts in quantum, cleantech, biotech, AI, and advanced materials.

Waltham · Worcester
DeepTech · ClimateTech +7
GovTech · Early Stage

Mätch VC

Pre-Seed Seed Series A

Early-stage VC backed by family businesses and entrepreneurs

Stuttgart
AI/ML · Spacetech +5

Material Impact

Pre-Seed Seed Series A

Building deep tech companies powered by material science

Boston
Material Science DeepTech · Material Science +14
Material Science · DeepTech

Matrix Partners

Seed Series A Series B

Early-stage VC investing from idea through Series A, backing technical founders with contrarian conviction across multiple sectors.

San Francisco · Cambridge
AI/ML · Infrastructure +7
Operator-Led · Founder-Led

Matter Venture Partners

Seed Series A Series B

Venture capital firm focused on food, agriculture, and sustainability

Palo Alto
Semiconductor & HardTech · Hardcore Science & Engineering +14
Semiconductor & HardTech · Early Stage

Matterwave Ventures

Seed Series A

European VC backing seed and Series A hardware and software startups reshaping industrial, deep tech, and climate value chains.

Munich
Industrial Tech · ClimateTech +8
Europe-Focused · Thesis-Driven

Maverick Silicon

Series A Series B Series C

Semiconductor-focused private fund within Maverick Capital backing chip designers, hardware, and software companies addressing global compute demand; $813M fund size.

Dallas · New York City +4
Semiconductors · AI/ML +5
Growth Stage · Thesis-Driven

Maverick Ventures

Seed Series A Series B

Early-stage VC arm of Maverick Capital backing healthcare and tech from seed through maturity

San Francisco · New York
AI/ML · Consumer +5
Corporate VC · Multi-Stage

Mayfield

Seed Series A Series B

Collaborative Intelligence VC backing AI founders from inception.

Menlo Park · Mumbai
AI/ML · SaaS/Software +5
Early Stage · AI-Heavy

Mechanism Capital

Pre-Seed Seed Series A

Crypto-native fund co-founded by Andrew Kang investing across DeFi, Web3 gaming, blockchain infrastructure, and deep tech from seed to Series B.

Boston
Blockchain · Web3 +7
Web3-Focused · Multi-Stage

Mercia Ventures

Seed Series A Series B

Specialist UK investor providing venture capital and scale-up funding

Henley-in-Arden · Nottingham +9
Software & AI · Health & Life Sciences +10
UK-Centric · Regional Specialist

Meron Capital

Pre-Seed Seed

Founder-led seed fund co-founded by Liron Azrielant and Daniel Roditi, leading first checks for technically difficult Israeli deep tech with a partner-only, no-associates model.

Tel Aviv
AI Infra · AI/ML +11
Israel-Focus · Founder-Led

Metavallon VC

Pre-Seed Seed Series A

Venture capital fund investing in early-stage tech startups tied to Greece

Athens
Transportation · Mobility +26
Greece-Focused · Early Stage

MetaVC Partners

Seed Series A

Early-stage VC investing in metamaterials technology startups

San Francisco · Seattle
Advanced Materials · Metamaterials +6
Advanced Materials · DeepTech

MGX

Seed Series A Series B

Abu Dhabi-based AI and advanced technology investor backing global businesses scaling AI infrastructure and frontier technology platforms.

Abu Dhabi
AI/ML · Infrastructure +2
Mega-Fund · Sovereign-Backed

Micron Ventures

Seed Series A Series B

Corporate venture arm of Micron Technology investing in startups that advance the semiconductor and memory ecosystem.

Boise
Semiconductors · Hardware +6
Corporate VC · Strategic Investor

MiddleGame Ventures

Pre-Seed Seed Series A

Luxembourg-based European FinTech VC backing early-stage founders re-architecting financial services, open finance, blockchain, and embedded ESG.

Luxembourg · Dublin +2
Fintech · Blockchain +8
Europe-Focused · Operator-Led

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