Medicxi is a European life-sciences investment firm formed by the former Index Ventures life-sciences team. Official website

MCJ invests in founders working across energy transition, industrial systems, resilience, carbon management, and climate adaptation. Official website

MassMutual Ventures is a corporate-backed venture firm investing across enterprise SaaS, fintech, cybersecurity, health technology, and climate technology. Official website

MassChallenge is a nonprofit accelerator network known for equity-free programming and partnerships with corporations, public institutions, and regional innovation ecosystems. Official website

Manhattan Venture Partners is a private-market investment and secondary platform focused on late-stage venture-backed companies. Official website

M12 is Microsoft’s corporate venture capital platform. Official website

Main Sequence is an independently managed deep-tech venture firm that creates and invests in companies built around scientific research. Official website

Maersk Growth works with startups transforming global trade, logistics, supply chains, transportation, sustainability, and digital infrastructure through investment, pilots, venture clienting, and commercial partnership. Official website

Lux Capital is one of the clearest category leaders in deep-technology venture capital. Official website

Lowercarbon Capital is a highly visible climate-focused venture firm investing across carbon removal, energy, industrial decarbonization, transportation, agriculture, materials, and climate software. Official website

LocalGlobe is a London-based seed investor with deep roots in the European technology ecosystem. Official website

Lightstone Ventures is a life-sciences firm focused on biotechnology and medical technology. Official website

Lightspeed Venture Partners is a global venture firm with a substantial early-stage franchise across enterprise software, consumer technology, fintech, cybersecurity, AI, cloud infrastructure, and digital platforms. Official website

LG Technology Ventures invests in artificial intelligence, biotechnology, cleantech, mobility, advanced materials, consumer technology, displays, batteries, and next-generation hardware. Official website

Lerer Hippeau is an early-stage venture firm with a strong position in the New York startup ecosystem. Official website

JP Jenkins is a long-established UK marketplace for private and unquoted company shares. Official website

Kindred Capital is an early-stage venture firm backing European technology founders across software, AI, deep technology, climate, healthcare, and consumer markets. Official website

Khosla Ventures is one of the most influential venture firms associated with technically ambitious company formation. Official website

Jeito is an independent biopharma investment firm focused principally on clinical-stage companies developing therapies for severe diseases and unmet medical needs. Official website

IVP is one of the United States’ most established later-stage venture firms. Official website