Directory

Oxford Quantum Circuits

ScaleupQuantumAIBritish

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

VCAIQuantumIncubator / AcceleratorBritish

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.

PPRO

ScaleupFinanceBritish

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.

Palamon

PEOtherFinanceBritish

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.

Par Equity

VCOtherAIBritish

Par Equity is an Edinburgh-based early-stage venture capital firm and investor network founded in 2008, specialising in high-growth technology companies across Scotland, Northern England, and Northern Ireland. The firm operates both an EIS fund and an angel investor network, offering seed to Series A investment. Par Equity has merged with Praetura Ventures and Praetura Investments in 2025 to form the PXN Group, a £670 million investment platform operating from Manchester, Edinburgh, Leeds, and London.

Parkwalk

VCAIClimateBritish

Parkwalk Advisors is the UK's most active investor in university spinouts, specialising in backing deeptech companies emerging from British universities and research institutions via Enterprise Investment Scheme funds. The firm invests across seed to scale in deeptech, healthtech, and cleantech verticals, with a particular focus on artificial intelligence, quantum computing, life sciences, and clean energy. Founded in 2009, Parkwalk was acquired by IP Group in 2017 and is authorised and regulated by the Financial Conduct Authority.

Passion Capital

VCFinanceAIBritish

Passion Capital is a London-based, founder-first venture capital firm founded in 2011, specialising in pre-seed and seed investments across AI, fintech, and enterprise software. The firm has backed over 100 companies including GoCardless, Monzo, Tide, Marshmallow, and PolyAI, and closed its fourth fund at $55 million in 2026.

Patron Capital

PEReal EstateProptechBritish

Patron Capital is a European private equity real estate investment firm founded in 1999 and headquartered in London, focusing on opportunistic and value-add property investments across Western Europe. The firm has deployed over €5.5 billion of equity across more than 117 investments in 17 countries and manages multiple funds including a gender-lens Women in Safe Homes Fund.

Paymentology

ScaleupFinanceBritish

Global card issuer-processor enabling banks, fintechs and neobanks to launch and scale card programmes across 65+ countries via its cloud-native Lume platform.

Penningtons Manches Cooper

Professional ServicesOtherBritish

Penningtons Manches Cooper LLP is a full-service UK and international law firm with roots dating to 1729, serving businesses, not-for-profits, and individuals across corporate, commercial dispute resolution, real estate, employment, family law, and personal injury matters. The firm has over 400 specialist lawyers across offices in London, the South of England, and internationally in Europe and Asia.

Peppy

ScaleupBiotech & Life SciencesBritish

Employer-funded (B2B2C) digital health benefits platform giving employees access to specialist clinical support for menopause, fertility, men's health and family.

PhysicsX

ScaleupAIDefenceBritish

AI-native engineering and simulation platform applying deep learning surrogate models across the engineering lifecycle for aerospace, automotive, semiconductors, materials and energy.

Pi Labs

VCProptechReal EstateIncubator / AcceleratorBritish

Pi Labs is Europe's first and leading proptech-focused venture capital firm, based in London. Founded in 2014, it invests at the pre-seed to Series A stage in technology companies transforming the built world, covering sustainable construction, smart buildings, and climate-conscious property technology. The firm has made approximately 100 investments across 15 countries over three funds and has achieved 19 exits, and also operates a competitive accelerator programme for early-stage proptech startups.

Picus Capital

VCSaaSAIForeign

Picus Capital is a Munich-based early-stage venture capital firm founded in 2015, investing at pre-seed, seed, and Series A stages in technology-driven startups globally. The firm has made over 170 investments across fintech, HR tech, climate/energy, healthtech, and logistics, and counts several unicorns in its portfolio including Personio and Enpal. It operates nine offices worldwide, including in London and New York.

Piton Capital

VCOtherSaaSBritish

Piton Capital is a London-based venture capital and growth equity firm founded in 2010 that invests exclusively in online businesses with network effects, such as marketplaces, exchanges, and platforms. The firm backs companies across all sectors where network effects provide a structural competitive moat, typically investing from Series A through Series C with ticket sizes ranging from €200k to €20 million. Notable portfolio companies include Booksy, McMakler, and Wunder Mobility.

Playfair

VCSaaSAIBritish

Playfair Capital is a London-based venture capital firm founded in 2013, investing exclusively at the pre-seed stage across the UK and Europe. The firm takes a high-conviction, low-volume approach, making approximately 6 investments per year with cheque sizes of £100k–£1.5m, and has backed over 70 companies including Thought Machine, Andela, and Omnipresent. It currently invests from its £57 million Fund 3.

Plexal

CoworkingCybersecurityAIEcosystem Bodies, Catapults & InstitutionsIncubator / AcceleratorBritish

Plexal is an innovation and growth company that provides co-working space, runs accelerator programmes and delivers innovation consultancy, partnering with government, startups and industry to solve societal challenges through technology. Founded by Delancey in 2017, it is headquartered at Here East on the Queen Elizabeth Olympic Park in Stratford, with additional locations in Shoreditch, Manchester and Cheltenham; it runs Cyber Runway, the UK's largest cyber accelerator, in partnership with the NCSC.

Plum

ScaleupFinanceConsumerBritish

Smart money app automating savings, investing (stocks and funds) and personal finance management for consumers across the UK and Europe.

Plural

VCAIDefenceBritish

Plural is a European early-stage venture capital firm founded in 2022 by experienced technology founders including co-founders of Wise and Skype. The firm backs ambitious European startups from seed through Series B, with a focus on artificial intelligence, deep and frontier tech, climate and energy, and defence technology, aiming to have GDP-level impact on Europe.

Pollen Street

PEFinanceSaaSBritish

Pollen Street Group is a London-listed private capital asset manager focused on financial and business services, with over £8 billion in AUM across private equity and private credit strategies. Founded in 2013 as a spin-out from Royal Bank of Scotland, the firm invests in and builds businesses across the financial services ecosystem, with offices in London, Austin, and Abu Dhabi.

PolyAI

ScaleupAIBritish

Enterprise voice-AI platform deploying conversational agents that handle complex customer-service interactions at scale, used across hospitality, retail, financial services and the public sector.

Portage

VCFinanceForeign

Portage is a global fintech and financial services investment platform within the Sagard group, originally known as Portag3 Ventures, that backs companies from seed to Series C with capital, a global investor network, and value creation expertise. The firm manages $6.4 billion in assets across 130+ portfolio companies in 15 countries, with offices in Toronto, Montreal, New York, Paris, and London.

Post-Quantum

ScaleupCybersecurityQuantumBritish

Quantum-safe cybersecurity firm offering PQC-based VPN, secure messaging, PKI/identity and crypto-migration services; Nomidio division provides biometric identity verification. Post-Quantum has secured NATO communications infrastructure and was recognised as a top PQC innovator in 2025.

Primer

ScaleupFinanceAIBritish

Unified payments infrastructure and orchestration platform for payment acceptance, routing, reconciliation and A/B testing across PSPs. Primer lets merchants compose and automate their entire payment stack through a single API, with AI-driven intelligence layered across transactions.