Harwell · Seed–Series A · 4 people tracked
Investment thesis
Longwall Venture Partners provides early-stage venture capital and company-building support for UK deeptech, helping turn scientific research into enduring global businesses. The firm emphasizes patient capital and technical fluency, recognizing that deep, emergent technology requires investors who understand the long journey from prototype to product and from first customer to category leader. Longwall works closely and deliberately with founders from day one, prioritizing customer engagement and avoiding over-engineering. Active since 2008, it positions itself as a long-term partner willing to back ambitious hard-science ideas that other investors underestimate.
Source: firm website, verified Aug 3, 2026.
Team · 4 people
from the firm's website & public directories
Founder mafia
2 people who came through Longwall Venture Partners LLP went on to found or lead other companies.
What they invest in
from 10 of 15 portfolio companiesBiotech ×6Deep Tech ×5Hardware ×5Healthtech ×4Medical Devices ×2Advanced Manufacturing ×1AgTech ×1Cleantech ×1
HQs:United Kingdom×3
Investments · 15 tracked
founders shown can be your intro pathBiofidelity develops genomic biomarker testing technologies—its Aspyre and Enspyre products—for cancer detection, treatment selection, and minimal residual disease monitoring.
BiotechHealthtechMedical Devices
Co-investorsOctopus VenturesPerscitus LLP
Co-investorsCreative Destruction Lab (CDL)Oxford Investment Consultants LLPOxford Science Enterprises
Kinomica develops KScan, a phosphoproteomic diagnostic platform that analyzes which proteins and signaling pathways are activated to guide treatment selection for patients and support the discovery of new drug targets.
BiotechDeep TechDigital Health
LettUs Grow builds Advanced Aeroponics irrigation systems, including the patented Aeroponic Rolling Bench, which use ultrasonic misting to deliver nutrients to plant roots for commercial glasshouses and vertical farms.
AgTechFoodTechHardwareBristol, GB
Co-investorsBlue Horizon Corporation
Lightcast develops a single-cell functional analysis platform that uses droplet-based technology to profile cell function, biomolecule secretion, cell-cell interactions, and targeted cell killing at scale.
BiotechDeep TechHealthtech
Co-investors+ND CapitalIllumina VenturesM VenturesOMX VenturesARCH Venture Partners
MFX develops the Cyto Engine, an automated bioprocessing platform that accelerates development and manufacturing of engineered cells for cell and gene therapy.
BiotechDeep TechHealthtech
Co-investorsCambridge Angels group
Mirico builds a laser-based methane sensor deployed as-a-service (hardware and analytics bundled) that continuously scans oil and gas facilities up to 1 km² to detect, pinpoint, and quantify emissions.
CleantechClimate TechHardware
Co-investorsFuture Planet CapitalOxford Investment Opportunity Network (OION)Foresight GroupNew Climate Ventures
OrganOx develops organ preservation and transplantation technology used by research institutions to keep and treat organs, aimed at supporting transplantation and reducing the future need for transplants.
BiotechHealthtechMedical Devices
Co-investorsAmadeus Capital PartnersBusiness Growth FundHealthQuest CapitalIntuitive VenturesLauxera Capital PartnersOxford University Innovation+1 more
Oxford Space Systems designs and manufactures deployable antennas for satellites, focused on reducing mass and improving stowage efficiency and performance.
Deep TechHardwareSpace TechHarwell, GB
Sean Sutcliffein
Co-investorsCambridge Angels groupEMV CapitalFuture Planet CapitalMartlet CapitalOxford Investment Opportunity NetworkOxford Investment Opportunity Network (OION)+4 more
Co-investorsPerivoli Innovations
Co-investorsPerivoli Innovations
Verdel Instruments develops total correlation mass spectrometry (TOC-MS), a method using stored waveform ion radius modulation (SWIM) to generate MS/MS data for every analyte in a complex mixture.
BiotechDeep TechHardware
Wayland Additive develops metal additive manufacturing systems using its NeuBeam electron beam process, offered through its Calibur3 machine as an alternative to L-PBF and traditional eBeam systems.
Advanced ManufacturingHardwareNew Materials
Portfolio news
latest coverage across their companiesLightcast · kb.lightcast.io · Jul 2, 2026
Principals & officers · per Companies House
what is this? ⓘLLP designated member · since 2017
LLP designated member · since 2011
LLP designated member · since 2011
David James Edmonds Denny — 25–50% of voting rights, right to share surplus assets 25 to 50 percent limited liability partnership
Matthew Gerard Winston Frohn — 25–50% of voting rights, right to share surplus assets 25 to 50 percent limited liability partnership
Jane Elizabeth Burgoyne — 25–50% of voting rights, right to share surplus assets 25 to 50 percent limited liability partnership
Frequently asked questions
- How many investments has Longwall Venture Partners LLP made?
- Longwall Venture Partners LLP has 14 tracked investments.
- What stage does Longwall Venture Partners LLP invest at?
- Longwall Venture Partners LLP invests at the Seed, Series A stages.
- What is Longwall Venture Partners LLP's typical check size?
- Longwall Venture Partners LLP typically writes checks of $2M.
- What sectors does Longwall Venture Partners LLP focus on?
- Longwall Venture Partners LLP focuses on Biotech, Deep Tech, Hardware, Healthtech, IoT, Medical Devices, New Materials, SaaS.
- Where is Longwall Venture Partners LLP located?
- Longwall Venture Partners LLP is headquartered in Harwell, GB.
- Does Longwall Venture Partners LLP lead rounds?
- Yes, Longwall Venture Partners LLP leads investment rounds.
- Who does Longwall Venture Partners LLP co-invest with?
- Longwall Venture Partners LLP most often shares deals with Perivoli Innovations, Cambridge Angels group, Amadeus Capital Partners, among 24 tracked co-investors.
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