Directory

London Chamber of Commerce

Ecosystem Bodies, Catapults & InstitutionsOtherBritish

The London Chamber of Commerce and Industry (LCCI) is one of the UK's most established business membership organisations, founded in 1881 at Mansion House in the City of London. It supports over 11,000 member businesses through networking events, international trade documentation, policy advocacy, and business services, hosting more than 200 events annually. Accredited by the British Chambers of Commerce, it serves as London's key hub for the business community.

London Councils

GovernmentOtherEcosystem Bodies, Catapults & InstitutionsBritish

London Councils is the collective body representing London's 32 borough councils and the City of London Corporation. Formed in 1995 as the Association of London Government through the merger of the London Boroughs Association and the Association of London Authorities, it was renamed London Councils in 2006. It acts as a cross-party lobbying and policy organisation, advocates for London government interests, and coordinates shared services such as the Freedom Pass concessionary travel scheme.

London Tech Week

Ecosystem Bodies, Catapults & InstitutionsOtherCommunityBritish

London Tech Week is Europe's largest annual technology festival, held each June in London, bringing together innovators, investors, enterprise leaders, and startups from over 100 countries. Founded in 2014 and organised by Informa Tech, Founders Forum, and London & Partners with support from HM Government and the Mayor of London, it features keynote speakers, exhibitions, content stages, and fringe events distributed across the city. The event is a platform where strategies are set, policies are announced, and business is conducted across the global technology ecosystem.

M&G Investments

PEFinanceAIBritish

Global asset manager founded in 1931 investing across public and private markets, including growth-stage companies via its Catalyst strategy.

MHRA

GovernmentOtherBritish

The Medicines and Healthcare products Regulatory Agency (MHRA) is the UK executive agency, sponsored by the Department of Health and Social Care, responsible for regulating medicines, medical devices, and blood components for transfusion. Established in 2003, it ensures that medicines and medical devices work and are acceptably safe for use by the public.

MTC

Ecosystem Bodies, Catapults & InstitutionsOtherBritish

The Manufacturing Technology Centre (MTC) is a leading UK research and technology organisation at the forefront of manufacturing innovation, founded in 2010 and operating as one of seven centres within the High Value Manufacturing Catapult supported by Innovate UK. It employs over 600 engineers and scientists across sites in Coventry, Liverpool, and Oxford, engaging in thousands of commercial projects each year. The MTC bridges the gap between academia and industry across sectors including aerospace, automotive, defence, and digital manufacturing.

Magdalen College, University of Oxford

AcademiaQuantumBritish

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

Make UK

Ecosystem Bodies, Catapults & InstitutionsOtherBritish

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.

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.

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.

MassChallenge

Incubator / AcceleratorOtherFinanceGrantmakerForeign

MassChallenge is a global, non-profit, zero-equity startup accelerator founded in 2009 that supports founders tackling complex problems across healthcare and life sciences, climate, AI and autonomy, and cybersecurity. It takes no equity from the startups it supports and awards millions in equity-free cash prizes annually through corporate partnerships. It operates programmes across the United States, Israel, Switzerland, Mexico, and the United Kingdom, with its UK hub located at the Royal Docks Centre for Sustainability at the University of East London.

Medpace

CorporateBiotech & Life SciencesForeign

Medpace is a global full-service Contract Research Organisation (CRO) specialising in drug and biologic clinical development, with London-based operations and staff.

Microbiology Society

Ecosystem Bodies, Catapults & InstitutionsOtherBritish

The Microbiology Society is a UK-based membership charity and learned society for scientists working in microbiology, founded in 1945 as the Society for General Microbiology. With over 8,000 members across more than 100 countries, it is the largest learned microbiological society in Europe, publishing eight peer-reviewed journals and awarding over 500 grants annually. It advances understanding of microbiology through conferences, publications, and community support.

Mimecast

CorporateCybersecurityBritish

Email security, archiving, and human-risk management platform protecting organisations against phishing, business email compromise, and data loss; taken private by Permira for approximately $5.8 billion in 2022 and continues to operate under the Mimecast brand.

Mishcon de Reya

Professional ServicesOtherBritish

Mishcon de Reya LLP is a London-headquartered law firm founded in 1937, offering legal services across disputes, real estate, corporate, and private wealth matters. The firm employs over 1,400 people including more than 650 lawyers, with offices in London, Oxford, Cambridge, Singapore, Hong Kong, and Dubai.

Moelis & Company

Professional ServicesOtherForeign

Moelis & Company is a global independent investment bank founded in 2007 that provides strategic advisory services across mergers and acquisitions, recapitalisations, restructurings, capital markets, and private capital advisory. The firm operates across 23 offices worldwide and has advised on more than $5.5 trillion of transactions since its inception.

MongoDB

CorporateSaaSAIForeign

MongoDB is a leading developer data platform company best known for its open-source document-oriented NoSQL database. It offers MongoDB Atlas, a fully managed cloud database service available across AWS, Azure, and Google Cloud, as well as enterprise database software and developer tools. The company serves tens of thousands of organisations worldwide.

Montagu

PEOtherFinanceBritish

Montagu is a mid-market private equity firm with origins dating to 1968 and headquartered in London, with additional offices in Frankfurt, Paris, Warsaw, Luxembourg, and New York. The firm specialises in carve-outs and management buyouts across five priority sectors: healthcare, financial sector services, critical data, digital infrastructure, and education. Montagu manages approximately €12 billion in assets.

Monzo

CorporateFinanceConsumerBritish

UK digital bank offering current accounts, savings, lending and business banking via a mobile app; holds a full UK banking licence and serves more than 13 million customers.

Morgan Stanley Capital Partners

PEOtherForeign

Morgan Stanley Capital Partners is the middle-market private equity platform of Morgan Stanley Investment Management, established in 1985. The platform makes control equity investments in North American middle-market companies with enterprise values of $75 million to $750 million across a broad range of industries. Its most recent vehicle, Fund VIII, closed at $3.2 billion in 2025.

NATO Innovation Fund

VCDefenceAIForeign

The world's first multi-sovereign venture capital fund, backed by 24 NATO allies, deploying €1bn into deep tech startups across defence, security and resilience.

NCSC

GovernmentCybersecurityBritish

The National Cyber Security Centre (NCSC) is the UK government's lead authority on cyber security, an arm of GCHQ, headquartered at Nova South in Victoria, London. Founded on 3 October 2016, it provides advice, guidance and incident response support to individuals, businesses and public-sector organisations to make the UK the safest place to live and work online.

NEA

VCSaaSAIForeign

New Enterprise Associates (NEA) is one of the world's largest and most active venture capital firms, founded in 1977 and headquartered in Menlo Park, California, with additional offices in Chevy Chase, San Francisco, and New York. The firm invests in technology and healthcare companies across all stages, from seed to growth, with more than $28 billion in assets under management. NEA has backed over 284 portfolio company IPOs and more than 500 mergers and acquisitions.