Directory

MTI Ventures

VCClimateAIBritish

MTI Ventures is a UK-based venture capital investment management firm founded in 1983, regulated by the Financial Conduct Authority. It raises, structures, and manages venture capital funds investing in early-stage technology companies across health technology, net zero, digital, and the third economy sectors, with a strong emphasis on cleantech, materials technology, and medical technology.

MTUK Calendar

Ecosystem Bodies, Catapults & InstitutionsMediaCoworkingCommunityBritish

Our role is to ensure that the UK’s music tech start-ups and scale-ups achieve recognition, investment, and growth through the power of collaboration.

MTech Capital

VCFinanceAIForeign

MTech Capital is a venture capital firm founded in 2018 and specialising in insurtech and financial services technology. The firm invests in early-stage companies applying AI to transform customer experience and employee productivity across insurance, asset management, health and wellness, employee benefits, retirement savings, and enterprise software. It maintains offices in Santa Monica, California and London, UK.

MULTIC

StartupMediaConsumerForeign

The multiplayer comic platform where creators and AI collaborate. Build interactive narratives with node-graph storytelling, real-time collaboration, and infinite possibilities.

MYNDUP

StartupBiotech & Life SciencesDeep TechBritish

Workplace mental-health platform offering same-day, personalised 1:1 video sessions covering therapy, counselling, coaching and mindfulness, serving over 50,000 employees globally across more than 30 countries.

Made Tech

ScaleupOtherBritish

Digital, data and technology delivery for the UK public sector: central and local government, health, national security and education.

Magdalen College, University of Oxford

AcademiaQuantumDeep TechBritish

Constituent college of the University of Oxford founded in 1458, whose endowment invests in UK technology including quantum computing.

Magdrive

StartupSpaceDefenceBritish

Next-generation in-space electric/solid-metal propulsion for small satellites; dual-use with space-defence manoeuvrability applications.

Magenta Partners

PEOtherMediaBritish

Magenta Partners is a London-based private equity firm that invests £5–20m into founder-led UK growth businesses that are profitable and operating in niche markets, including technology, tech-enabled services, media, financial services, and business services. The firm takes both control and minority positions and emphasises a flexible, operationally-engaged partnership approach.

Mainyard Studios

CoworkingOtherBritish

Mainyard Studios is an independent, family-run workspace provider founded in 2012, operating nine locations across London including Hackney Central, Hackney Wick, Leyton, Mile End, Walthamstow, Enfield, and Wimbledon. It offers coworking desks, private offices, creative studios, and music studios tailored to creative professionals, entrepreneurs, and small businesses, serving over 1,000 small business owners. Regular networking and business-growth events complement the workspace offering.

Make UK

Ecosystem Bodies, Catapults & InstitutionsDeep TechBritish

Make UK is the UK's leading manufacturers' trade body and employers' organisation, representing engineering, manufacturing, and technology businesses across the country. Originally founded in 1896 as the Engineering Employers' Federation (EEF), it rebranded as Make UK in 2019, combining policy advocacy, employment law services, skills and apprenticeship training, and business support. It campaigns on behalf of manufacturers to government and in Brussels.

Makerversity

CoworkingOtherCommunityBritish

Makerversity is a creative maker space and community hub based in 20,000 square feet of the lower floors of Somerset House, providing affordable workspace for over 300 founders and makers working at the intersection of design, engineering, and digital practice. It offers specialist prototyping facilities including metal and wood workshops, 3D printing, laser cutting, electronics labs, and fashion studios, alongside business mentoring support. Founded in 2013, it is B Corp certified and a London Living Wage employer, with its community having built companies valued at over £600 million.

Manta Ray Ventures

VCAIFinanceBritish

Manta Ray Ventures is an early-stage venture capital firm based in London, founded in 2017, that partners with mission-driven founders building companies to address significant global challenges using advanced technologies. The firm invests with patient capital across a broad range of sectors including AI, biotech, healthcare, fintech, and deep tech.

Manulife Ventures

VCFinanceSaaSForeign

Manulife Ventures is the corporate venture capital arm of Manulife Financial Corporation, a Canadian multinational insurance and financial services company. The team backs early- and growth-stage North American B2B SaaS, FinTech, and InsurTech startups, typically investing at Series A and Series B stage.

MapMortar

StartupClimateAIBritish

AI/physics 'retrofit twins' platform modelling carbon/energy of buildings to plan decarbonisation; used by public bodies and developers.

Marchmont Ventures

VCFinanceBritish

Marchmont Ventures is an early-stage venture capital firm founded in 2018 and based at Marchmont House in the Scottish Borders, investing in companies that support sustainability, creativity, the arts, crafts, heritage protection, and land management. The firm backs purpose-driven enterprises and early-stage digital businesses with a long-term investment horizon.

Marker

StartupAISaaSForeign

Marker is a London-based startup building an AI-native word processor (marker.page) that helps writers with ideation, drafting, revision and collaboration without producing fully automated finished copy.

Marlin Equity Partners

PESaaSFinanceForeign

Marlin Equity Partners is a global software and technology-focused private equity firm managing over $10 billion in capital. Founded in 2005, the firm acquires and invests in middle-market companies undergoing operational, financial, or market-driven transitions, with offices in Los Angeles and London.

Marqeta

CorporateFinanceForeign

Transform your business with Marqeta's modern card issuing platform. Our open API platform allows businesses to instantly issue cards and process payments.

Marriott Harrison

Professional ServicesLegalBritish

Marriott Harrison LLP is a London-based law firm founded in 1985, specialising in advising high-growth technology companies, venture capital and private equity investors, and established business leaders on corporate transactions, M&A, financing, employment, IP, real estate, and taxation.

Marshmallow

ScaleupFinanceConsumerBritish

Insurtech offering car/motor insurance for migrants and people new to the UK, using broader data science to price overlooked customers fairly.

Martin Currie

Professional ServicesFinanceBritish

Martin Currie is an Edinburgh-based active equity investment manager founded in 1881, managing institutional funds in international equities for clients worldwide as part of the Franklin Templeton group. The Martin Currie brand retired on 30 September 2025, with the majority of its strategies and teams aligning under ClearBridge Investments and Franklin Equity Group.

Martlet Capital

VCAIBritish

Martlet Capital is a Cambridge-based pre-seed and seed investor providing patient capital to deep technology and life sciences startups with high growth potential. Originally the investment arm of the Marshall Group, it became independent in 2021 and was subsequently acquired by EMV Capital (a NetScientific subsidiary) in 2024, with over 70 investments and multiple successful exits including Abcam and Audio Analytic.