Directory

Investing Women Angels

VCOtherBritish

Investing Women Angels is Scotland's first all-female angel investment syndicate, incorporated in 2013 and based in Edinburgh. It backs early-stage, predominantly female-founded and female-led businesses across Scotland, having invested over £2.3 million across more than 25 companies. The organisation also runs education and community programmes to increase the number of women participating in angel investing.

Investment For Growth & Jobs NI

GovernmentFinanceGrantmakerBritish

Investment For Growth & Jobs Northern Ireland is the official portal for the Northern Ireland 2014–2020 European Regional Development Fund (ERDF) and European Social Fund (ESF) programmes. Managed by the Department for the Economy and the Department of Finance, it supported economic development, job creation, and business growth across Northern Ireland using EU structural funds, and is now in the programme closure phase.

Invisible Technologies

ScaleupAIForeign

Invisible has trained >80% of the world's leading AI models with our modular system that transforms data and manual processes into agent-ready workflows.

Invoke Capital

VCAICybersecurityBritish

Invoke Capital is a technology-focused venture firm that founds, invests in, and advises fast-growing fundamental technology companies in Europe. With deep expertise in artificial intelligence, cyber security, and deep tech, the firm has a dedicated in-house R&D division and close ties to the University of Cambridge. Notable portfolio companies include Darktrace, Luminance, and Featurespace.

Iona Star Capital

VCAIBritish

IONA STAR is an operator-managed venture capital fund dedicated to accelerating technology innovation with artificial intelligence and data.

Ionos

CorporateSaaSForeign

IONOS, your digital partner for cloud solutions and web hosting, supporting your needs from websites, domains, servers, and more.

Ironclad

ScaleupLegalSaaSForeign

Ironclad is an AI-powered contract lifecycle management (CLM) platform used by legal, procurement, and sales teams at enterprises including L'Oréal, Heineken, and Salesforce, with over $200M in ARR and a $3.2 billion valuation.

Isembard

StartupDefenceAIBritish

AI-powered precision manufacturing platform that builds and franchises high-mix CNC machining factories for the defence, aerospace and robotics sectors, reshoring production capacity to Europe.

Isometric

StartupClimateAIBritish

AI certification that unlocks revenue, permitting, and investment. For every industry.

Isomorphic Labs

ScaleupBiotech & Life SciencesAIBritish

AI-first drug discovery company spun out of Google DeepMind, building generative and predictive models (AlphaFold lineage) to design new medicines.

Itoflow

StartupFinanceAIBritish

Itoflow is a London-based fintech startup building AI agents that automate investment research, risk assessment and portfolio management for professional investment teams. It adapts its AI system to each firm's own investment process, covering asset classes such as equities, bonds, ETFs, commodities and digital assets.

Ivalua

CorporateSaaSForeign

Ivalua is a global leader of AI-powered procurement software for complete spend & supplier management on a unified source-to-pay platform.

JAMF

CorporateCybersecuritySaaSForeign

We help organizations succeed with Apple providing ability to manage Apple devices, connect users to resources and protect your business from cyber threats.

JC Flowers

PEFinanceForeign

J.C. Flowers & Co. is a leading private equity investment firm dedicated to investing globally in the financial services industry. Founded in 1998, the firm has deployed more than $18 billion of capital across over 70 portfolio companies in 19 countries, targeting banking, insurance, specialty finance, fintech, and asset management. The firm maintains offices in New York, London, and Miami.

JFrog

CorporateCybersecuritySaaSForeign

JFrog software supply chain solutions provide an end-to-end pipeline to control your binaries from build to production. Power your software updates to the edge.

JOIN Capital

VCDefenceDeep TechForeign

Join Capital

JPMorgan Chase

CorporateFinanceVCForeign

JPMorgan Chase & Co. is a leading global financial services firm and one of the largest banking institutions in the United States, headquartered in New York City. It operates across consumer and community banking, commercial banking, investment banking, and asset and wealth management, and maintains a strategic investments unit that backs fintech and technology startups.

JRJ Group

PEFinanceBritish

JRJ Group is a partner-led global private equity investment firm founded in 2009 and headquartered in London, with a core focus on the financial services sector. The firm provides capital, deep operational expertise, and strategic guidance to mid-sized European businesses, working closely with management teams to build long-term growth platforms.

Jack & Jill

StartupAIBritish

Jack is the AI agent for careers. Jill is the AI agent for hiring. Together they introduce remarkable people to remarkable companies.

JamJar

VCConsumerSaaSBritish

JamJar Investments is a London-based early-stage venture capital firm founded in 2012 by the co-founders of Innocent Drinks. The firm invests £500k to £3m in category-defining consumer brands across Europe, with a portfolio including Deliveroo, Wild, Runna, Tails.com, Tony's Chocolonely, and Simba Sleep.

Jane Street

CorporateFinanceForeign

Jane Street is a quantitative trading firm and liquidity provider with a unique focus on technology and collaborative problem solving.

JavaScript London

CommunityOtherBritish

JavaScript London is a community group for JavaScript developers in London, providing meetups, networking, and knowledge sharing around JavaScript development.

Jenson Ventures

VCOtherBritish

Jenson Funding Partners (trading as Jenson Ventures) is an FCA-regulated, B Corp-certified venture capital firm specialising in SEIS and EIS investments in early-stage UK companies. Founded in 2012, the firm has invested over £32 million across 165+ businesses and has 11 successful exits with an average multiple of 4.69x. Jenson takes a purpose-led, inclusive approach to venture investment across all sectors.

JetBrains

CorporateSaaSAIForeign

JetBrains is a cutting-edge software vendor specializing in the creation of intelligent development tools, including IntelliJ IDEA – the leading Java IDE, and the Kotlin programming language.