Directory

24 Haymarket

ScaleupSaaSAIFunding PlatformBritish

24 Haymarket is a London-based FCA-regulated investment platform and angel network that connects high-growth UK technology companies with a curated network of over 100 experienced investors, including former entrepreneurs and executives. The firm focuses on Seed and Series A stage investments and has completed over 80 investments across its portfolio.

3DPRINTUK

ScaleupOtherBritish

London 3D-printing service bureau specialising in low-volume / short-run batch production via SLS, MJF and SAF nylon; largest such capacity in the UK.

4GD

ScaleupDefenceBritish

SmartFacility instrumented immersive physical/virtual close-combat and UAS synthetic training environments (Ecfectus, Acies, SimWall) for the British Army.

7percent Ventures

VCSpaceAIBritish

7percent Ventures is a London-based early-stage venture capital firm backing ambitious founders tackling significant problems with moonshot potential. The firm invests at pre-seed and seed stages across deep tech sectors including spacetech, quantum computing, defence and aerospace, and AR/VR. It has invested in over 150 startups, with portfolio companies collectively raising more than $2.3 billion in follow-on capital.

ACE

GovernmentCybersecurityAIBritish

The Accelerated Capability Environment (ACE) is a Home Office unit that takes an innovative, industry-led approach to solving technology and data challenges for UK public sector agencies, particularly in law enforcement and national security. Founded in 2017 within the Office for Security and Counter Terrorism (OSCT), it operates via the Vivace community of over 180 private sector and academic organisations, primarily SMEs and start-ups. It has since expanded beyond the Home Office to support wider government partners.

ACE & Company

PEFinanceAIVCForeign

ACE & Company is a Geneva-headquartered private equity and venture capital group founded in 2005, with over $2 billion in assets under management. The firm operates through two lines: ACE Ventures, an early-to-late stage technology VC backing fintech, climate tech, deep tech, and AI founders; and ACE Private Equity, focused on lower mid-market buyouts and secondary investments. The firm has offices in Geneva, Zurich, New York, London, and Cairo.

ACF Investors

VCOtherBritish

ACF Investors (formerly Angel CoFund) is a £100 million UK venture capital fund that co-invests alongside syndicates of sector-smart angel investors to support early-stage businesses with strong growth potential. Launched in 2011 and initially backed by the British Business Bank, the fund makes equity investments of between £100,000 and £1 million into companies across the UK. ACF Investors operates from offices in Sheffield and London.

AFBE-UK

CommunityOtherBritish

AFBE-UK (Association for Black and Minority Ethnic Engineers) is a UK company limited by guarantee (registered no. 6570439) founded in 2007 that supports ambitious students and engineering professionals from Black and minority ethnic backgrounds. It runs over 100 events annually, operates a mentoring programme with 300 mentors, and has reached more than 20,000 beneficiaries since inception.

AI Standards Hub

Ecosystem Bodies, Catapults & InstitutionsAIAI SafetyBritish

The AI Standards Hub is a UK initiative dedicated to knowledge sharing, community building, and strategic research around the standardisation of AI technologies. It is a partnership led by the Alan Turing Institute with the British Standards Institution (BSI) and the National Physical Laboratory (NPL), supported by the UK Government's Department for Science, Innovation and Technology. Launched in October 2022, the Hub works to increase multi-stakeholder participation in AI standards development and facilitate international engagement.

AMFG

ScaleupSaaSBritish

SaaS workflow and MES platform for low-volume, high-mix manufacturers, covering quoting, production scheduling, shop-floor control and post-processing management; customers include HP, Volvo and L'Oréal.

AUAR

StartupProptechOtherBritish

Robotic micro-factories combining ABB robots with proprietary software to automate timber-frame building fabrication; shippable container-based production cells for off-site construction.

Abatable

ScaleupClimateBritish

Carbon market procurement and intelligence platform helping organisations source carbon credits and assess project/market risk.

About:Energy

StartupClimateBritish

Battery intelligence company; The Voltt is a battery-design and simulation software platform with validated cell models for EV, storage and consumer applications.

Accelerator London

Incubator / AcceleratorSaaSOtherAcademiaCoworkingBritish

London Metropolitan University's Accelerator is a specialist business incubator based in Hoxton (Shoreditch/Tech City), providing high-quality office space and business support to approximately 30 early-stage tech startups. Founded in 2003, it is one of London's longest-running university incubators and has supported resident companies that have collectively raised over £14 million in investment and generated over £21 million in revenue. The Accelerator also houses London Met's Enterprise team, which delivers programmes including Launchpad, Big Idea Challenge, and Summer Startup for students, staff, and recent graduates.

Accountancy Cloud

Professional ServicesOtherSaaSBritish

Accountancy Cloud is a London-based accountancy firm founded in 2014, providing accounting, bookkeeping, CFO, tax, and R&D tax credit services tailored to startups and high-growth businesses from pre-seed to Series B. The firm blends software tooling with professional finance support, serving clients across tech, SaaS, e-commerce, and consumer sectors. It was acquired by the Xeinadin Group in March 2026.

Accrue Capital

PEReal EstateBritish

Accrue Capital is a UK property investment, development, and asset management firm founded in 2009. The firm invests its own capital alongside joint venture partners and has acquired circa £250 million of assets across a broad range of real estate disciplines and asset classes, including offices, residential, and student accommodation.

Acurable

ScaleupBiotech & Life SciencesConsumerBritish

Medical wearable maker; AcuPebble SA100 is a wireless patch for automated at-home diagnosis and management of obstructive sleep apnoea and respiratory conditions.

Adamo Foods

StartupConsumerClimateBritish

Makes whole-cut steak alternatives from fungi and mycelium via a triple-patented fermentation process that replicates muscle texture. Products contain all essential amino acids and produce significantly fewer carbon emissions than conventional beef.

Adarga

ScaleupDefenceAIBritish

Adarga Vantage SaaS AI/NLP platform processing vast unstructured open-source and in-house data for intelligence analysis and decision support in defence and national security.

Adfin

StartupFinanceAIBritish

London fintech building an agentic payments platform that uses AI agents to automate invoicing, payments collection and reconciliation for small and medium-sized businesses.

Advai

ScaleupCybersecurityAIBritish

AI assurance and security firm that stress-tests, red-teams and monitors ML/LLM and computer-vision systems for adversarial vulnerabilities and failure modes.

Advantage Business Angels

VCOtherBritish

Advantage Business Angels is a UK angel network that has been sourcing equity finance for early-stage and growing businesses since 2003, having raised over £30 million across more than 200 transactions. The network connects entrepreneurs seeking investment with angel investors, typically writing tickets of £50,000 to £500,000, and has a stated historical success rate ahead of the market norm.

Advantage Early Growth Fund

VCOtherBritish

Advantage Early Growth Fund (AEGF) is a closed venture capital co-investment fund based in Tamworth that invested in early-stage businesses with growth potential located within the West Midlands region of the UK. The fund made over 100 investments in West Midlands companies alongside private sector investors and is fully invested and no longer accepting new applications.

Agilitas

PEOtherBritish

Agilitas is a pan-European mid-market private equity firm founded in 2011, specialising in transformational investments in defensible businesses across sectors including TMT, healthcare, education, environmental services, and protection and security. The firm works closely with management teams to develop and execute multi-dimensional transformation plans, with a strong operational focus, an ESG emphasis, and offices in London, Paris, Copenhagen, Luxembourg, Frankfurt, and Milan. Agilitas closed its Agilitas 2020 Private Equity Fund at its €565 million hard cap in March 2021.