Directory

ICO

GovernmentLegalBritish

The Information Commissioner's Office (ICO) is the UK's independent authority for upholding information rights in the public interest. It enforces the UK GDPR, the Data Protection Act 2018, and other information rights legislation, and advises individuals and organisations on their rights and obligations. The ICO was originally established as the Office of the Data Protection Registrar under the Data Protection Act 1984, and was renamed in 2001.

ICONIQ Capital

VCFinanceAIPEForeign

ICONIQ Capital is a privately held global investment firm founded in 2011 in San Francisco, managing over $80 billion in assets for ultra-high-net-worth individuals, families, and institutions. The firm operates across investment management, venture and growth equity, real assets, and impact philanthropy, with its venture arm ICONIQ Growth having invested in over 140 enterprise software, fintech, and infrastructure companies. ICONIQ has offices in San Francisco, Palo Alto, New York, London, and Singapore.

IDEALondon

Incubator / AcceleratorAIFinanceAcademiaCoworkingBritish

IDEALondon is a deep-tech workspace, incubator, and innovation centre in Shoreditch operated by UCL's Faculty of Engineering in partnership with WilbeLAB, a scientist-led platform for academic entrepreneurs. Founded in 2013, it offers flexible desk space, curated events, startup mentoring, access to UCL researchers, and connections to London's deep-tech investment network, focusing on AI, biotech, fintech, and climate tech. Companies launched at IDEALondon have collectively created over 3,000 jobs and raised more than £340 million in funding.

IET

Ecosystem Bodies, Catapults & InstitutionsDeep TechBritish

The Institution of Engineering and Technology (IET) is one of the world's largest engineering institutions, with approximately 168,000 members in over 150 countries. It works to inspire, inform, and influence the global engineering and technology community through professional membership, knowledge resources, events, and advocacy, and was formed in 2006 from the merger of the IEE and the IIE.

IFOW

Ecosystem Bodies, Catapults & InstitutionsAIBritish

The Institute for the Future of Work (IFOW) is an independent socio-technical research and development institute dedicated to transforming working lives. Founded in 2018 and registered as a UK charity, it focuses on people-centred technology, AI governance, and good work transitions. It undertakes research, convenes stakeholders, and advises policymakers at the intersection of technology and employment.

IFS

CorporateSaaSDeep TechBritish

Recognized as a leading enterprise software solution provider, IFS develops and delivers ERP, EAM, FSM and ESM to businesses worldwide. From cloud technology to easy-to-use interfaces, our solutions are for customers who maintain assets, manage service operations, or manufacture and distribute goods.

IMC

CorporateFinanceForeign

IMC is where the brightest minds in trading, technology, and quant research come together to solve the industry’s greatest challenges. Explore careers with us.

IMU Biosciences

ScaleupBiotech & Life SciencesAIBritish

Immune-powered precision medicine company using a high-resolution AI platform to map the human immune system from a single blood sample for diagnostics and drug development.

IMechE

Ecosystem Bodies, Catapults & InstitutionsOtherBritish

The Institution of Mechanical Engineers (IMechE) is one of the world's leading professional engineering societies, with over 110,000 members in 140 countries. Founded in 1847 by George Stephenson, it is a registered charity licensed by the Engineering Council to assess candidates for chartered, incorporated, and engineering technician status. Its stated mission is to improve the world through engineering.

ION Group

CorporateFinanceBritish

ION financial software improves decision making, simplifies complicated processes and empowers you by providing the right tools.

IP Group plc

VCBiotech & Life SciencesAIBritish

LSE-listed UK investor that identifies, backs, and grows university spinout businesses across HealthTech, DeepTech, and CleanTech.

IPO

GovernmentLegalBritish

The Intellectual Property Office (IPO) is the official UK government body responsible for intellectual property rights, including patents, trade marks, designs, and copyright. It operates as an executive agency sponsored by the Department for Science, Innovation and Technology. Originally established as the Patent Office in 1852, it adopted its current operating name in 2007.

IQ Capital

VCAISaaSBritish

IQ Capital is a European deep tech venture capital firm investing from pre-seed through to Series A and beyond, with a focus on frontier technologies including AI, quantum computing, robotics, advanced materials, and synthetic biology. Founded in Cambridge with offices in London and Cambridge, the firm has over $1 billion in assets under management, has backed over 100 deep tech companies, and has achieved more than 20 exits to global technology firms including Apple, Google, Meta and Oracle.

ISN

CorporateSaaSForeign

ISNetworld (ISN) is the global leader in contractor and supplier information management, streamlining prequalification, HSE, sustainability, and analytics.

ISONIK

StartupClimateBritish

Ultrasonic ice-prevention technology retrofitted inside wind-turbine blades and other critical infrastructure using ultrasonic guided waves to prevent icing without moving parts or heating elements.

IW Capital

VCSaaSAIBritish

IW Capital is a London-based growth equity and EIS (Enterprise Investment Scheme) investment firm that backs ambitious UK technology founders with capital typically in the £1–2 million range. The firm offers three core services — IW Capital (growth funding), IW Connect (network access), and IW Catalyst (marketing and PR support) — targeting high-growth SMEs across AI, medtech, and SaaS sectors.

Iceotope

ScaleupClimateAIBritish

Sheffield-based pioneer in precision liquid cooling for AI, HPC, and data centre infrastructure, with 219 granted and pending patents.

Iconic

StartupGamingAIBritish

London-based AI games company building on-device, voice-driven systems and tools for intelligent, reactive game worlds and interactive entertainment.

Idinvest Partners

VCFinanceAIPEForeign

Idinvest Partners was a leading pan-European private equity and venture capital firm founded in 1997 as AGF Private Equity, specialising in financing small and medium-sized European companies at various growth stages including venture, growth capital, and private debt. The firm managed over €9 billion in assets across more than 4,000 European businesses, with a particular focus on IT, fintech, artificial intelligence, and biotech. In 2018 Eurazeo acquired a majority stake, and the firm was subsequently rebranded as Eurazeo Investment Manager in 2021; its funds are now managed under the Eurazeo platform.

Ignition Law

Professional ServicesLegalBritish

Ignition Law is a London-based, B Corp-certified law firm specialising in legal and commercial advice for startups, scale-ups, SMEs and entrepreneurs. The firm offers services spanning corporate law, commercial law, employment, intellectual property, dispute resolution and data protection, with a focus on cost-effective and flexible delivery.

Illuminate Financial

VCFinanceAIBritish

Illuminate Financial is a specialist venture capital firm investing in early-stage enterprise AI and fintech companies defining the future of financial services. With offices in London, New York, and Singapore, the firm combines capital with strategic connectivity to global financial institutions, having raised over $500 million across four funds and built a portfolio of 57 companies with 14 exits.

Illumio

ScaleupCybersecurityForeign

Explore Illumio, the world's first breach containment platform. Stop cyber attacks before they spread with cloud detection and microsegmentation.

Immuta

ScaleupCybersecurityForeign

Immuta is the authorization layer for data access. One set of rules decides every request, in under a second, for every human and every agent.

Impact Hub London

CoworkingOtherCommunityBritish

Impact Hub London is an award-winning social enterprise providing co-working space, affordable offices and business support programmes for changemakers, social entrepreneurs and impact-driven organisations. Originally founded as Impact Hub King's Cross in October 2008, it rebranded to Impact Hub London in 2023 celebrating its 15th anniversary, and opened its Euston location at Regent's Place in April 2024 in partnership with the Knowledge Quarter.