Mamba Growth

Series A Series B Series C

Early growth equity firm backing bootstrapped software companies

New York
Embedded Finance · Payments +4
Embedded Finance · Bootstrapped-Focus

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

ManchesterStory

Seed Series A

Des Moines-based early-stage VC deploying strategic capital in InsurTech, FinTech, and HealthTech, backed by 24 insurance carriers and brokers.

West Des Moines
InsurTech · Fintech +3
Corporate VC · Early Stage

Mangusta Capital

Seed Series A Series B

Global VC firm backing AI, software, and consumer innovations.

San Francisco · Milan
AI/ML · SaaS/Software +7
Global VC · AI-Heavy

Mantis Venture Capital

Seed Series A

Early-stage VC investing in tech-enabled startups and founder support

Los Angeles
AI/ML · Consumer +11
Early Stage · Celebrity-Backed

Marathon Management Partners

Series A Series B Series C

Early to growth-stage fintech and software investor founded by operator-investors from Coatue, NEA, TCV, and Google.

New York · Menlo Park +1
Fintech · Cybersecurity +4
Multi-Stage · Operator-Led

March Capital

Series A Series B Series C

Early-Growth stage firm founded on an enterprise/cyber/India thesis a decade before it was conventional wisdom, known for backing CrowdStrike.

Santa Monica
AI/ML · Enterprise +3
Growth Stage · Thesis-Driven

mark vc

Seed Series A

Austin-based generalist backing founders CrowdStrike and Anduril once trusted, using deep behavioral diligence before writing checks.

Austin
Healthcare · HealthTech +4
Generalist · Early Stage

Market Square Ventures

Pre-Seed Seed

Five Knoxville residents changed Tennessee law to launch this firm, now backing early founders across an overlooked Appalachian region.

Knoxville
AI/ML · Enterprise +7
Early Stage · Operator-Led

Markham Valley Ventures

Seed Series A

AAPI-focused early-stage fund led by actor Simu Liu, backing founders from the Asian American and Pacific Islander community across consumer products and technology.

Los Angeles
Consumer · Entertainment +4
Early Stage · Founder-Led

Marlinspike

Seed Series A Series B

Veteran-led defense investor co-investing alongside Anduril and Palantir backers to rearm America's industrial base through dual-use tech.

Arlington
National Security · Aerospace +5
Defense-Focused · Early-Stage

Maroon Venture Partners

Pre-Seed Seed

For-profit pre-seed fund investing in early-stage companies founded or led by UMass Amherst faculty, students, and alumni.

Amherst
Enterprise · SaaS/Software +5
University Spin-outs · Pre-Traction

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Marque Ventures

Seed Series A

Early-stage defense-first VC investing in US and allied-nation startups with clear DoD application, from seed to Series A, across AI, robotics, autonomous systems, and advanced manufacturing.

San Francisco
Defense Tech · AI/ML +6
Defense-Focused · Early Stage

Marquee Ventures

Seed Series A Series B

Chicago Cubs-anchored early-stage VC backing founders in commerce, entertainment, and sports tech, with $1–2M initial checks into companies with demonstrated product-market fit.

Chicago
Consumer · Sports +3
Corporate VC · Early Stage

Martin Ventures

Seed Series A Series B

Nashville-based healthcare family office investing own capital in digital health, value-based care, and health services companies.

Nashville
HealthTech · Healthcare Services +5
Multi-Stage · Operator-Led

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

MassMutual Ventures

Seed Series A Series B

Helping to build category-defining technology businesses

Boston
Enterprise SaaS · Climate Technology +6
Corporate VC · Global VC

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

Matchstick Ventures

Pre-Seed Seed

Early-stage VC investing $500K-$1.5M in pre-seed and seed startups across the North and Rockies regions of the US.

Minneapolis · Boulder
SaaS/Software · Marketplace +6
US-Centric · Founder-Led

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

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