Directory

Productboard

ScaleupSaaSForeign

Productboard is the only comprehensive agentic product management system built for product makers. Understand customers, prioritize features, and ship the right thing.

Profound

ScaleupAIMediaForeign

Profound is the AI marketing platform built for the agentic era. See what your customers ask AI, deploy agents to act on it, and measure the results in a collaborative workbench

Project A Ventures

VCFinanceDeep TechForeign

Project A is the early-stage VC for entrepreneurs building the next generation of European icons. Since 2012, we’ve partnered with 130+ founding teams at the earliest and most decisive stages.

Project Europe

Incubator / AcceleratorOtherVCBritish

Project Europe is a cohort-based accelerator and investment programme launched in March 2025 to support the next generation of technical European founders under the age of 25. Backed by 20VC, Point Nine, and Adjacent alongside over 150 leading European founders, it invests €200,000 in exchange for 6.66% equity and pairs each founder with a top European entrepreneur as a dedicated mentor.

Project Motherboard

CommunityOtherCoworkingForeign

Project Motherboard is a female-founder hackerhouse in London where tech-for-good builders live, collaborate, and experiment together. Apply to join our community.

Prolific

ScaleupAISaaSBritish

Prolific helps AI developers, researchers, and organizations easily access the highest-quality human data. Sign up for free.

Prolo

StartupProptechLogisticsBritish

Prolo is the smart procurement platform for construction: source materials, hire plant and manage trade accounts from one simple place.

Prosus

CorporateE-commerceConsumerVCForeign

Prosus is the power behind the world's leading lifestyle e-commerce brands.

Protium Green Solutions

ScaleupClimateBritish

Develops, builds and operates green hydrogen production and distribution projects alongside technical services for industrial decarbonisation. Protium partners with industry and infrastructure owners to deliver end-to-end hydrogen solutions, from project development through to ongoing operations.

Proton

ScaleupCybersecuritySaaSForeign

Over 100 million people use Proton to stay private and secure online. Get a free Proton account and take back your privacy.

Provenias

Professional ServicesOtherSaaSBritish

Provenias Ltd is a UK company registered in Bath, active since 2017, operating in information technology consultancy and management consultancy. Its online presence is very limited and it does not appear to operate as a conventional venture capital or investment firm.

Proximie

ScaleupBiotech & Life SciencesDeep TechBritish

Connected surgery platform enabling surgeons to remotely guide, annotate and record live operations, facilitating the sharing of best clinical practice globally. Proximie's augmented reality and video technology is used in operating theatres across multiple countries to improve surgical training and patient outcomes.

PubMatic

CorporateMediaSaaSForeign

Drive measurable advertising performance with PubMatic's AI-powered, agentic platform — built for buyers, publishers, and commerce media across CTV and mobile.

Punto Health

StartupBiotech & Life SciencesAIBritish

AI platform for dementia care using speech-based digital biomarkers for cognitive testing, with dedicated apps for patients, carers and clinicians. Punto Health aims to enable earlier detection and ongoing monitoring of cognitive decline outside of traditional clinical settings.

Puraffinity

ScaleupClimateBiotech & Life SciencesBritish

Deep-tech company producing bio-inspired precision adsorbent materials that capture and remove PFAS 'forever chemicals' from water at scale. Puraffinity's technology addresses a critical environmental contamination challenge affecting drinking water and industrial effluent worldwide.

PwC

Professional ServicesOtherBritish

PricewaterhouseCoopers (PwC) is a multinational professional services network providing audit, assurance, tax, consulting, and advisory services. The firm was formed in 1998 through the merger of Price Waterhouse and Coopers & Lybrand, both of which had roots in 19th-century London. PwC employs over 370,000 people across 151 countries and is one of the Big Four accounting and consulting firms.

PyData London

CommunityAIBritish

PyData London is a volunteer-run community for developers and users of Python data tools, founded in 2014 as part of the PyData global network under NumFOCUS, a US-based 501(c)(3) non-profit. The group hosts monthly meetups with 150+ attendees and an annual multi-day conference focused on data management, processing, analytics, and visualisation.

PyLadies London

CommunityEdtechBritish

PyLadies London is the London chapter of PyLadies, a global mentorship group (a trademark of the Python Software Foundation) supporting marginalised genders in the Python open-source community. The chapter promotes diversity and inclusion through education, outreach, workshops, study groups, and talks aimed at helping members become active participants and leaders in Python.

Pyri

StartupClimateBritish

Low-cost, biodegradable pinecone-inspired sensors for early wildfire detection and real-time monitoring of remote areas.

Q-Bot

ScaleupProptechClimateBritish

Construction robotics company whose remote-controlled robots crawl under timber floors to survey and spray-apply insulation, improving home energy efficiency and reducing heating costs.

QBase

CoworkingQuantumAIEcosystem Bodies, Catapults & InstitutionsCommunityBritish

QBase is London's first Quantum Applications Hub, launched by EdenBase in October 2025 in partnership with Northeastern University London. It provides subsidised hot-desk co-working space near Tower Hill alongside curated events, expert office hours, and an ecosystem programme connecting quantum and AI startups with investors and corporates, drawing on the heritage of Level39 and Tech Nation.

QED Investors

VCFinanceForeign

QED Investors is a leading global fintech-focused venture capital firm founded in 2007, with over $4 billion in assets under management and a portfolio of 250+ companies across the US, UK, Europe, Latin America, Asia, and Africa. The firm invests exclusively in financial services technology, spanning credit, lending, insurance, wealth management, and embedded finance, and has backed major fintech disruptors including Nubank, Credit Karma, Remitly, Klarna, and SoFi. QED was co-founded by former Capital One executives who bring deep operational expertise to their portfolio companies.

QM Enterprise Zone

Incubator / AcceleratorAIAcademiaCoworkingBritish

Queen Mary University Enterprise Zone (QME) is an innovation hub and co-working space backed by Queen Mary University of London, focusing on Digital Health, MedTech, and AI startups in East London. Funded by Research England as one of 20 University Enterprise Zones across the UK, it provides incubation space, training programmes, networking, and access to investors for STEM entrepreneurs. It is Queen Mary's latest innovation space, complementing the earlier Queen Mary BioEnterprises Innovation Centre launched in 2011.

QMB Innovation Centre

CoworkingBiotech & Life SciencesDeep TechIncubator / AcceleratorBritish

Queen Mary BioEnterprises (QMB) Innovation Centre is a 52,000 sq ft life science incubator in Whitechapel, wholly owned by Queen Mary Innovation, the technology transfer arm of Queen Mary University of London. The centre offers fully fitted CL2 wet labs, write-up suites, and shared facilities for early-stage and growing biotech and science companies, sitting on the university's Barts and The London School of Medicine and Dentistry research campus. The entity was incorporated in 2007 and the purpose-built building began operations in 2010.