24 Haymarket — Full Portfolio
54 tracked investments · listed companies and verified rows first
ANGOKA provides secure machine-to-machine communications for robotic, autonomous, and mission-critical systems operating across air, land, maritime, space, and critical infrastructure.
CybersecurityDefense TechIoTBelfast, GB
Shadi Razak(Founder)
Co-investorsClarendon Fund Managers Ltd.Gallos TechnologiesJenson VenturesSeraphim Space
Azadyne is a UK biotech company and spin-out from Trinity College Dublin developing therapeutics based on tRNA modification and epigenetic regulation of cellular protein synthesis.
BiotechDeep Tech
Vincent KellyStephen Connonin
BoardJason Rutt
Co-investorsNCL Technology Ventures Ltd.
Blackbullion operates a centralized platform where students can search and apply for scholarships, grants, and bursaries from external organizations and educational institutions.
B2B MarketplacesEdTechFintechSaaS
Brain in Hand provides digital support combined with on-demand human assistance to help autistic and neurodivergent people in the UK manage daily challenges and access employment, healthcare, and professional support.
Digital HealthEdTechHealthtechMental Health
Louise Morpeth(Chief Executive Officer and Board Member)inMatthew Arnold(Product and Strategy Director)in
Cambridge Medical Technologies designs and manufactures medical devices for non-invasive blood biomarker monitoring.
HardwareHealthtechMedical DevicesCambridge, GB
Michael Lacey-Solymar(Chairman)Jack Jachmann(Chief Executive Officer)James Cooke(Chief Financial Officer)John Currie(Chief Scientist)
Circulor provides digital product passport infrastructure and supply chain traceability solutions designed for regulatory compliance with EU sustainability requirements.
Advanced ManufacturingCircular EconomyEnterprise SoftwareSaaS
Giles Palmer(CEO)
Co-investorsAster CapitalFuture Positive CapitalHG VenturesInMotion VenturesPlug and Play VenturesRegeneration.VC+3 more
Cloudhouse helps enterprises safely execute infrastructure changes—patches, migrations, and modernizations—on legacy platforms without breaking mission-critical applications.
Cloud ComputingCybersecurityDeveloper ToolsEnterprise Software
Mat Clothier(Founder)in
Co-investorsAtlas VenturesCommitted Capital
Calira provides scheduling and management software for scientific lab equipment, letting LabOps teams book shared instruments, track maintenance, monitor utilisation, and build a searchable equipment directory across one or multiple labs and sites.
BiotechEnterprise SoftwareSaaS
Niklas Friedberg(Founder)inTobias Wingbermuehle(Founder)in
Co-investorsMolten Ventures
CyberHive provides secure communication and zero-trust connectivity solutions designed for defense, military, and other mission-critical operations across constrained or contested environments.
CybersecurityDefense TechDeveloper ToolsEnterprise SoftwareIoT
Andrew Anderson(Founder and CEO)in
CyberOwl develops Medulla, a cybersecurity platform that provides asset inventory, continuous security monitoring, and risk visibility for maritime and shipping fleets.
CybersecurityIoTLondon, GB
Co-investorsBrookstreet Equity PartnersPhaze VenturesTechstars
Cydar Medical develops cloud-based AI imaging technology for image-guided, minimally invasive surgical procedures, supporting planning, guidance, and clinical outcomes.
AI & Machine LearningDigital HealthMedical Devices
Graeme Penney(Chief Scientific Officer & Co-Founder)Paul Mussenden(Chief Executive Officer)inMatt Waltham(Chief Medical Officer)Rob Hague(Chief Technology Officer)in
Co-investorsPembroke VCTVenture Founders
Definigen manufactures iPSC-derived human hepatocytes for drug discovery and disease modeling.
AI & Machine LearningBiotechDeep TechHealthtechMedical DevicesUppsala, SE
Christopher Trummer(CEO & Co-Founder)inOla Spjuth(Chief AI Officer (CAIO) & Co-Founder)inJordi Carreras-Puigvert(Chief Scientific Officer & Co-Founder)inMorgan Ekmefjord(Co-Founder & CTO)in
Co-investorsAlmi InvestNordic Science Investments
Deliciously Ella offers a subscription membership, available via website and app, with 2,000+ plant-based recipes, guided meditations, and wellness tools like meal planning and shopping lists.
ConsumerDirect to ConsumerWellness & Fitness
Ella
Dogtooth Technologies develops autonomous robotic systems for agricultural harvesting, particularly strawberry picking.
AgTechAI & Machine LearningHardwareRoboticsCambridge, GB
Dr Duncan Robertson(Founder & CEO)Ed Herbert(Founder & COO)
Co-investorsEMV CapitalMartlet CapitalOctopus Ventures
Dr Doctor provides a web-based patient engagement platform for NHS trusts and healthcare systems that integrates appointments, communications, video consultations, and digital forms into a single connected system.
Digital HealthEnterprise SoftwareHealthtechSaaSLondon, GB
Tom Whicher(CEO & Co-Founder)
Co-investorsBethnal Green VenturesYFM Equity PartnersAnanda Impact Ventures
Mailchimp is an email and SMS marketing platform that helps businesses of all sizes automate customer communications and drive revenue through AI-powered analytics and campaign tools.
E-commerceMarketing TechSaaS
Co-investorsDecisive PointFifth WallFitz Gate VenturesForma PrimeHello TomorrowMapleblock Capital+10 more
Feebris offers a clinical platform with CE-certified medical device AI (PlethAI, Class IIb) that enables hospital-grade remote patient monitoring and care at home.
AI & Machine LearningDigital HealthMedical Devices
Co-investorsCambridge Angels groupJoyance PartnersMeridian Health VenturesSupermorpheus
Flussol manufactures miniaturized air velocity sensors for flow measurement applications.
Deep TechHardwareIoTSemiconductorsCambridge, GB
Dr Andrea De Luca(CEO and co-founder)Prof. Florin Udrea(CTO and co-founder)
Co-investorsMartlet Capital
Huq turns location and behavioural movement data into weekly intelligence and dashboards that help organisations make retail, property, and place-based decisions.
AI & Machine LearningData & InfrastructurePropTechRetail Tech
Co-investorsACF Investors
Hybrid Access Technologies provides multi-link connectivity software, including SD-WAN thin-client and link-bonding technology that combines multiple network connections (broadband, 4G/5G, satellite, FWA, FTTP) into a single virtual pipe.
Cloud ComputingEnterprise SoftwareIoTSaaS
Paul Evans(Founder & CEO)
Co-investorsCambridge Angels group
Hypetex develops FlaxTex, a coloured natural flax fibre technology that serves as a sustainable, biodegradable alternative to carbon and glass fibre for manufacturing applications.
Advanced ManufacturingCircular EconomyCleantechDeep TechNew MaterialsLondon, GB
Marc Cohen(CEO)in
Co-investorsInnovate UKOxford Investment Opportunity Network (OION)
Insignia Technologies develops products using patented colour-changing inks and films that provide real-time visual indicators for applications such as patient safety and food waste reduction.
FoodTechMedical DevicesNew MaterialsBioCity Scotland, GB
Dr Graham Skinner(CEO)
Co-investorsEquity Gap
Interface Polymers develops Polarfin diblock copolymer additives used as compatibilisers, anti-fog dispersions, and adhesion promoters for polyolefin plastics.
Advanced ManufacturingCircular EconomyNew Materials
Co-investorsGC VenturesEvonik Venture Capital GmbH
IRIS develops a cloud-based digital ordering and guest management platform for hotels and restaurants, enabling guests to browse, order, and pay for food, beverages, and services through their personal devices.
Cloud ComputingDirect to ConsumerEnterprise SoftwareHardwareSaaSTravel & Hospitality
Co-investorsColumbia Pacific AdvisorsConcord Health PartnersFounder CollectiveGlasswing VenturesHyde Park Angels
Kelda Technology develops water-in-air shower products using patented technology derived from aerospace and automotive engineering to reduce water usage and water heating costs.
CleantechClimate TechHardware
Luna Mae is a couture house that produces personalized lingerie, loungewear, and babywear, emphasizing British craftsmanship.
ConsumerDirect to ConsumerLondon, GB
MediSieve develops a magnetic blood filtration system that uses nanoengineered magnetic particles and beads to remove pathogens such as harmful cells, bacteria, toxins, and inflammatory cytokines directly from a patient's bloodstream.
BiotechHealthtechMedical Devices
Dr George Frodsham(Founder & CEO)Prof Quentin Pankhurst(Co-founder)
Membr provides a management platform for gyms and fitness facilities that automates member engagement, booking, and personal training coordination.
Future of WorkHealthtechSaaSSports TechWellness & Fitness
Jack(Founder & CEO)Dave
Co-investorsMaven Capital Partners
Monterosa provides a real-time engagement platform that enables organizations to build direct relationships with audiences through owned channels, capturing first-party data and managing audience interactions at scale.
GamingMarketing TechMedia & EntertainmentSaaSSports TechUK, GB
SimonTomIgor
Optalitix provides an enterprise platform that consolidates pricing and underwriting workflows, enabling organizations to modernize their pricing models without disruption through incremental cloud migration and governance.
AI & Machine LearningCloud ComputingEnterprise SoftwareFintechInsurTechSaaSLondon, GB
Co-investorsCalculus Capital Ltd.
Osprey provides flight planning integration and risk assessment analysis for aviation operations, combining proprietary data with external aviation information to optimize routes for safety, efficiency, and security.
AI & Machine LearningDefense TechEnterprise SoftwareLogistics & Supply ChainSaaS
Andrew(CEO and Co-founder)Bruce(Co-founder and Head of Partnerships)
Co-investorsLevel Equity
Previsico provides a flood forecasting and hydrological monitoring service that predicts and monitors flood risks, including surface water, small streams, and drainage systems often not covered by standard flood alerts.
AI & Machine LearningClimate TechInsurTech
Prof. Yu(Co-founder)Dr Avi Baruch(Co-founder)in
Co-investorsBURNT ISLAND VENTURESConnecticut InnovationsBlueOrchard Finance S AForesight Group
London
Nick Pointon(Executive Officer)Cary Davis(Director)Gerard Buggy(Founder)Jason McFall(Executive Officer)Jason du Preez(Founder)Seth Pierrepoint(Director)
Co-investorsAccelGen CapitalPartech VenturesABN AMRO VenturesIlluminate Financial
ProSapient operates a survey platform that uses AI-enhanced tools to help teams collect and analyze insights from expert respondents and niche audiences.
AI & Machine LearningB2B MarketplacesData & InfrastructureEnterprise SoftwareMarketing TechSaaSToronto, CA
Margo Polishchuk(Co-founder)inJordan(Co-founder)
Co-investorsSmedvig CapitalFigure 8 InvestmentsSmedvig Ventures
Revolo Biotherapeutics develops immunomodulatory therapies targeting allergic and immune-mediated conditions.
BiotechHealthtechMedical Devices
Jonathan Rigby(Employee #1)
Co-investorsNCL Technology Ventures Ltd.
Provides pharmaceutical R&D services via the Cyto-Mine machine for single-cell analysis and characterisation.
Co-investorsQVenturesProvidence Investment Company LimitedREDMILESofinnova Partners
Spirable is a sport-focused media activation platform that helps advertisers connect with sports fans through targeted advertising and broadcast solutions.
AdTechMarketing TechMedia & EntertainmentSports Tech
Ger O'Meara(Founder)inDave O'Meara(Founder)
Co-investorsFrontline VenturesTrue.Smedvig Capital
SPOKE is a London-based menswear brand selling clothing and accessories online, including a sock collection produced in partnership with the London Sock Company.
ConsumerDirect to ConsumerE-commerceLondon, GB
Ben Farren(Founder)in
Co-investorsMolten VenturesOxfordAccelAda VenturesBethnal Green VenturesFelicis Ventures+6 more
YASA designs and manufactures axial-flux electric motors for automotive OEM customers such as Ferrari and Lamborghini, operating an axial-flux factory in Oxfordshire, UK.
Advanced ManufacturingCleantechHardwareMobility & TransportationOxford, GB
Tim Woolmer(Founder & CTO)inJörg Miska(Chief Executive Officer)
Co-investorsOxford Science EnterprisesParkwalk AdvisorsInovia Capital
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
BirdsEyeViewCaptiniEquilumeGrowthintelligenceHelloayrMonterosa ProductionsMygworkpixlbio (formerly DefiniGEN)
Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.














































































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