Explore London's tech ecosystem
Oxford-based venture capital firm investing over £500m into 100+ early-stage UK technology and science companies since 1999.
Oxford Early Investments (OEI) was an angel network operating under the OION Ltd group — the same umbrella as the Oxford Investment Opportunity Network (OION) and Thames Valley Investment Network (TVIN) — providing investors with access to investment opportunities at an earlier stage than those presented to OION, typically in companies seeking between £20,000 and £150,000. The network is permanently closed.
Oxford University provides world-class research and education to benefit society on a local, regional, national and global scale.
Oxford University spinout developing and operating superconducting quantum computers for data-centre environments, with systems deployed across the UK, US, Japan and Spain.
Oxford Science Enterprises (OSE) is an independent investment company and venture builder operating in unique partnership with the University of Oxford, transforming cutting-edge scientific research into commercial companies. With a portfolio spanning life sciences, healthtech, and deep tech, OSE has invested over £3 billion alongside co-investors and supports approximately 40 core portfolio companies. It was formerly known as Oxford Sciences Innovation.
Oxford Seed Fund is Europe's largest student- and alumni-managed venture fund, housed within Saïd Business School's Entrepreneurship Centre at the University of Oxford. It invests up to £100,000 into early-stage, technology-enabled startups where an Oxford student, alumnus, or member of academic staff is part of the founding team, and provides access to the wider Oxford network. Since its first fund in 2013, it has backed over 23 companies in that fund cycle, including two unicorns — Onfido and Go1 — with the second fund now active.
Oxford Technology Management is a specialist venture capital firm founded in 1983 that invests in startup and early-stage technology companies based in and around Oxford. It manages multiple investment vehicles including SEIS and EIS funds, Knowledge-Intensive EIS funds, and four Oxford Technology Venture Capital Trusts listed on the London Stock Exchange, with a focus on deep tech and science-based businesses within approximately 60 miles of Oxford.
Oxford University Innovation (OUI) is the technology transfer and commercialisation office of the University of Oxford, responsible for protecting intellectual property, licensing technologies, and supporting the formation and scaling of spinout companies from Oxford research. Founded in 1987 as Oxford University Research and Development Ltd (later Isis Innovation), it has created over 350 companies and has been named Technology Transfer Office of the Year at the GUV Awards.
Oxygen House Group is an impact investment and group holding company based in Exeter, founded in 2008, that invests in and develops businesses focused on addressing the climate and biodiversity crises. Its portfolio spans renewable energy, sustainable property development, educational technology, conservation, and data analytics, and includes subsidiaries such as Low Carbon, Sparx, Grenadier Estates, and Oxygen Conservation.
Oxygen Investors (formerly Central England Business Angels, CEBA) is a Birmingham-based angel investment network that connects equity-ready SMEs with a network of over 300 angels, family offices, and institutional funds across the UK, facilitating investment rounds of £100,000 to £1 million. Established in 2008 and acquired by Oxygen Enterprise Partners in 2013, it specialises in personalised, bespoke investor introductions across all sectors.
PAI Partners is a French private equity firm with origins tracing back to Paribas Affaires Industrielles. The firm manages approximately €25 billion in dedicated buyout funds and invests in market-leading companies across Business Services, Food & Consumer, Industrial Goods & Services, and Healthcare. PAI operates across seven offices worldwide including Paris, London, Madrid, Milan, Munich, Luxembourg, Stockholm, and New York, having completed over 65 LBO transactions representing more than €48 billion in transaction value.
Cloud-native SaaS platform modernising financial index creation, calculation, rebalancing, and compliance for banks and asset managers.
Robot-agnostic, decentralised edge-AI software platform for warehouse automation (picking, packing, sorting, material handling), delivered on a subscription model for SMEs. Now trading as FloxMind.
Plugged (Plugged Founders) is a London members' coworking club and community for startup founders, offering workspace access alongside curated events, workshops, and networking such as house parties, hackathons, and founder dinners.
Local payments infrastructure connecting acquirers and platforms to alternative payment methods worldwide. PPRO enables merchants and payment service providers to accept localised payment methods across over 100 markets through a single integration.
PQShield is focused on empowering organizations, industries, and nations, with the ultimate quantum-resistant hardware and software solutions
PROfounders Capital is a pan-European early-stage venture capital firm based in London, investing since 2009 in tech-enabled B2B and B2C businesses that transform customer experience.
Embodied AI and robotics company building practical robot systems for facilities and logistics environments, starting with supermarkets, to augment human workers using real-world training data.
Turn incidents into intelligence. PagerDuty's AI-first Operations Platform helps you automate, resolve, and prevent critical issues — from detection to resolution.
Infrastructure platform for monetising AI agents, enabling developers to implement results-based billing that charges customers by value and outcomes rather than seats or subscriptions.
Scale your business globally with Palabra.ai. Fast, secure, and accurate AI-powered content localization, voice cloning, and translation services.
Palamon Capital Partners is an independent mid-cap private equity firm founded in 1999 and headquartered in London. The firm provides equity to growing, asset-light service businesses across Europe, focusing on tech-enabled financial services, business services, healthcare, and consumer and education sectors. Palamon manages approximately €1.3 billion in funds under management and has invested across 43 companies in 12 European countries.
UK operations of Palantir Technologies, providing data integration, AI analytics, and decision-support platforms (Foundry, AIP, Gotham) to UK government, defence, and commercial clients including the NHS and MoD.