Directory

ARX Robotics

StartupDefenceAIForeign

ARX Robotics is a European defence-tech startup building autonomous unmanned ground vehicles (UGVs) and the Mithra OS AI operating system for military and defence applications, with a UK headquarters in London and a production facility in south-west England.

AWS User Group UK

CommunityOtherBritish

AWS User Group UK is the largest dedicated Amazon Web Services community in Europe, based in London, with over 9,500 members. Founded in 2012, it runs regular in-person events covering all AWS topics, with no vendor sales pitches. The group also operates a specialist AWS AI in Practice sub-group.

Abound

ScaleupFinanceAIBritish

AI-led consumer lender (formerly Fintern) using Open Banking cashflow data rather than credit scores to underwrite personal loans.

Ada Lovelace Institute

Ecosystem Bodies, Catapults & InstitutionsAI SafetyAIBritish

The Ada Lovelace Institute is an independent research institute established by the Nuffield Foundation in 2018 to ensure that data and AI work for people and society. It conducts research, policy analysis and public deliberation on the ethical and social implications of AI and data-driven technologies, operating in collaboration with partners including The Alan Turing Institute, the Royal Society and the British Academy.

Ada Ventures

VCSaaSAIBritish

Ada Ventures is a UK-based pre-seed inclusive venture capital firm that invests £250k–£1.5m in technology companies at their first funding round, before clear signs of product-market fit. Incorporated in 2018 and launching its first fund in late 2019, it focuses on European founders building businesses addressing climate equity, economic empowerment, and healthy ageing, operating from offices in London and Bristol.

Ada's List

CommunityOtherBritish

Ada's List was a global community network for women and non-binary people working in technology, founded in London in October 2013 as an email group. It grew to over 150,000 members and joined TechLadies in 2022–2023, with the community integrated into the Tech Ladies platform. The adaslist.co domain has since been repurposed and no longer belongs to the organisation.

Air Street Capital

VCAIBritish

Air Street Capital is a London-based early-stage venture capital firm investing in AI-first companies building enduring, high-impact businesses. The firm focuses on backing founders as early as possible, typically at pre-seed and seed stage, and recently closed Fund III at $232M.

AlbionVC

VCSaaSAIBritish

AlbionVC is the technology investment arm of Albion Capital Group LLP, founded in 1996 and based in London. The firm partners with visionary founders with long-term capital and scale-up expertise, investing from seed through to Series B primarily in UK-based high-growth B2B software and technology-enabled services businesses. AlbionVC manages approximately £1 billion of venture funds and has backed notable companies including Booking.com, Quantexa, and Elliptic.

Allica Bank

ScaleupFinanceBritish

Digital SME challenger bank serving established UK businesses with 5–250 employees, offering business current accounts, savings, commercial lending and relationship banking.

AnaCap

PEFinanceSaaSBritish

AnaCap Financial Partners is a London-based lower mid-market private equity firm specialising in Services, Software and Technology companies operating within the European financial ecosystem. Founded in 2005, the firm manages approximately €2 billion in assets under management and has completed over 100 acquisitions, with equity tickets of €25–100 million across more than 10 European jurisdictions.

Angel Capital Scotland

Ecosystem Bodies, Catapults & InstitutionsOtherBritish

Angel Capital Scotland (formerly LINC Scotland) is the national association for business angels in Scotland, established in 1993 and based in Glasgow. The organisation represents approximately 2,000 active angel investors across around 20 structured angel syndicates, collectively investing over £100 million annually into early-stage Scottish companies. It advocates for its members at government level and is a founding member of Business Angels Europe.

Angel Investment Network

Ecosystem Bodies, Catapults & InstitutionsOtherBritish

Angel Investment Network (AIN) is the world's largest online angel investment platform, founded in 2004 and headquartered in Twickenham, London. The platform connects entrepreneurs seeking funding with a global network of over 300,000 angel investors across more than 90 countries, operating country-specific portals and facilitating introductions between startups and investors at seed and early-stage across all sectors.

Anthemis

VCFinanceAIBritish

Anthemis Group is a London-based early-stage venture capital and advisory firm founded in 2010, focused on investing in digitally native financial services, fintech, and insurtech companies globally. The firm backs entrepreneurs at the intersections of finance and technology, with a particular emphasis on equity and inclusion, including running a large early-stage fintech fund dedicated to female-founded companies. Anthemis also provides ecosystem-building services alongside its investment activities.

Antler

VCAIFinanceIncubator / AcceleratorForeign

Antler is a global early-stage venture capital firm founded in 2017, headquartered in Singapore and active across more than 30 locations worldwide, including London. The firm specialises in 'Day Zero' investing, backing exceptional founders from the very inception of their companies before a co-founder, product, or even a defined idea exists. Antler also operates Antler Elevate, a scale-up growth fund providing capital from Series A onwards.

Apis Partners

PEFinanceBritish

London-headquartered private equity firm investing in tech-enabled financial infrastructure and services across Europe and growth markets, with $2.3bn AUM.

Apolitical

ScaleupEdtechAIBritish

Global learning and networking platform for public servants; government skills, AI/policy training and peer collaboration across 140+ countries.

Apollo Research

StartupAI SafetyAIEcosystem Bodies, Catapults & InstitutionsBritish

Technical AI safety organisation focused on reducing risks from scheming/deceptive frontier AI through interpretability research and behavioural model evaluations; also provides pre-deployment auditing services to frontier AI laboratories.

Applied Computing

StartupAISaaSBritish

Applied Computing develops Orbital, a foundation model for process plants, refineries and petrochemical facilities that combines time-series, physics, chemical-engineering and language models to interpret sensor data and simulate operational changes. Founded in 2023 by Callum Adamson and Dr Samyakh Tukra, it operates from London with hubs in Bengaluru and Houston.

Argyll

CoworkingOtherBritish

Argyll is a premium flexible workspace provider offering serviced private offices, coworking lounges, meeting and event spaces, and virtual office addresses across ten prestigious London neighbourhoods including Mayfair, Belgravia, City of London, and Covent Garden. Founded in 1996, the company is known for its distinctive heritage properties and high-quality service. In 2025 it was acquired by Crosstree Real Estate Partners for approximately £330 million.

Atlantic Bridge

VCAIDefenceForeign

Atlantic Bridge is a global growth equity technology firm with over €1.2 billion of assets under management across eight funds. The firm invests in deep technology companies in Europe, the UK and the United States, with a cross-border value-add strategy and offices in Dublin, London, Munich, Paris and Palo Alto.

Augmentum Fintech

VCFinanceBritish

Augmentum Fintech plc is Europe's leading publicly listed fintech-focused venture capital fund, incorporated in 2017 and listed on the main market of the London Stock Exchange in 2018. The firm invests in early- and later-stage fast-growing fintech businesses disrupting banking, insurance, asset management and wider financial services, with a portfolio that has included Zopa, Tide, iwoca, interactive investor and Habito. In May 2026 Verdane completed an acquisition of Augmentum Fintech and it was removed from the LSE listing.

Autolus Therapeutics

ScaleupBiotech & Life SciencesBritish

Commercial-stage biopharma developing next-generation programmed CAR T-cell therapies for cancer and autoimmune disease; UCL spin-out listed on NASDAQ (AUTL).

Automata

ScaleupAIBiotech & Life SciencesBritish

Modular lab automation platform combining robotics, orchestration software and data infrastructure to turn physical life-sciences labs into programmable, AI-ready systems; serves genomics, cell biology and drug discovery.

Aviva Ventures

VCFinanceAIBritish

Aviva Ventures is the corporate venture capital arm of Aviva plc, the FTSE-listed UK insurance and financial services group, established in 2016 with an initial commitment of £100 million. It makes direct investments in early-stage businesses in insurtech, fintech, health, and adjacent technology sectors, seeking both financial returns and strategic insight for the broader Aviva business. Aviva plc committed a further £150 million to the fund in 2023.