Longwall Venture
Longwall Venture Partners LLP is a UK-based venture capital firm founded in 2008 that invests at the Pre-Seed and Seed stages in deeptech companies across life sciences, advanced manufacturing, defence and clean energy, managing its fourth fund (Longwall 4) anchored by the British Business Bank.
- Company typePrivate
- Founded2011
- HeadquartersHarwell, United Kingdom
- Headcount1–10
- GTM typeB2B
- OfferingServices
What Longwall Venture does
Longwall Venture Partners LLP is a UK-based venture capital firm specialising in early-stage deeptech investments. Founded in 2008 by David Denny, Matthew Frohn and the late Michael Penington, the firm is headquartered on the Harwell Science and Innovation Campus in Oxfordshire and operates as a Small Authorised AIFM regulated by the Financial Conduct Authority (FRN 554695). It invests at the Pre-Seed and Seed stages into IP-protected UK companies operating in advanced manufacturing, life sciences, medical technologies, defence and clean energy, typically writing initial cheques of £500,000 to £2 million and following on as portfolio companies grow.
The firm manages a sequence of funds, currently raising Longwall 4 with a £100 million target. As of May 2026, Longwall 4 had secured £86.2 million in total commitments, anchored by a £50 million cornerstone investment from the British Business Bank through its Enterprise Capital Funds programme. This is the fourth consecutive Longwall fund backed by the British Business Bank since the inaugural OTECF fund in 2008. Across its portfolio of more than 20 companies, Longwall targets technologies with long development cycles and complex go-to-market paths, including OrganOx (normothermic machine perfusion for organ transplantation, sold for over $1.5 billion), Oxford Space Systems (deployable satellite antennas), Wayland Additive (metal additive manufacturing), Caristo Diagnostics (cardiovascular risk prediction), and Biofidelity (molecular cancer diagnostics).
Revenue is generated through traditional fund management economics: management fees on assets under management across the firm's four vintages plus carried interest on successful exits. The firm operates with a lean 1-10 person team led by Managing Partner David Denny, Co-Founder Matthew Frohn, Partner Rebecca Todd, CFO Jane Burgoyne and Financial Controller Helen Viner. Its primary "customers" are the limited partners providing fund commitments (with the British Business Bank as the cornerstone investor) and the portfolio companies receiving capital, hands-on company-building support, and access to the UK deeptech ecosystem.
Longwall Venture firmographics
Firmographics- Name
- Longwall Venture
- Legal name
- Longwall Venture Partners LLP
- Website
- http://www.longwallventures.com/
- Company type
- Private
- Founded year
- 2011
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Longwall Venture Partners LLP is a UK-based venture capital firm founded in 2008 that invests at the Pre-Seed and Seed stages in deeptech companies across life sciences, advanced manufacturing, defence and clean energy, managing its fourth fund (Longwall 4) anchored by the British Business Bank.
- Ownership category
- akta.pro rank
Longwall Venture industry classification
Industry- Product category
- Venture Capital Fund Management
- NAICS
- Portfolio Management and Investment Advice (52394), Other Investment Pools and Funds (5259)
- SIC
- Investment Advice (6282)
- akta.pro primary industry
- Sector-Focused Venture Capital (Vertical Specialists) (FSANAAAD)
Keywords
Where Longwall Venture is headquartered
LocationHeadquarters
- HQ city
- Harwell
- HQ country
- United Kingdom
- HQ region
- Europe
Offices2 records
Markets served
Longwall Venture business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales, Others
Revenue model
- Fund Management: Longwall operates as a Small Authorised AIFM managing Unregulated Collective Investment Schemes. Revenue derives from management fees on funds under management and carried interest (performance fees) on successful exits.
Go-to-market motion1 record
Distribution channels1 record
Marketing channels2 records
Longwall Venture product offering
Product offeringCore offering
Longwall Venture Partners is a UK-based venture capital firm that manages early-stage deeptech investment funds. The firm sources, invests in, and actively supports IP-protected deeptech companies in life sciences, physical sciences, advanced manufacturing, clean energy, and defence. It provides patient seed and pre-seed capital, typically £500,000 to £2 million per company, alongside hands-on company-building guidance from inception through exit.
Product overview
Longwall Venture Partners is a UK-based venture capital firm providing deeptech investment fund management and company-building services. The firm operates the Longwall 4 fund (a £100 million deeptech fund targeting early-stage UK companies in advanced manufacturing, clean energy, defence, and life sciences) as its primary current offering. The portfolio includes 20+ deeptech companies spanning life sciences (OrganOx, Lightcast Discovery, Caristo Diagnostics, Biofidelity, Kinomica, OxSonics, Oxford Cancer Biomarkers, Abfero, MFX) and physical sciences (Oxford Space Systems, Cobalt, Wayland Additive, Diamond Microwave, Focus Sensors, Keit, Mirico, Oxford Photovoltaics, LettUs Grow, Verdel Instruments), representing investments from previous funds OTECF, Longwall 2, and Longwall 3 built over more than 20 years of company-building.
Differentiator
Problem solved
Functional benefit
Brands
- Longwall 4: The fourth deeptech fund targeting early-stage UK companies in advanced manufacturing, clean energy, defence, and life sciences.
Products and services
- Longwall Venture Fund Management Services Venture capital fund management and company-building services for early-stage UK deeptech companies, including investment sourcing, portfolio support, and operational guidance from inception through exit. Targeted at UK-based founders of IP-protected startups in life sciences, physical sciences, advanced manufacturing, clean energy, and defence.
- Longwall 4 Fund £100 million target deeptech venture fund investing £500,000 to £2 million into 14-16 early-stage UK companies in advanced manufacturing, clean energy, defence, and life sciences.
- OTECF Fund Longwall's inaugural deeptech venture fund, raised in 2008 with support from the British Business Bank, providing early-stage capital to UK deeptech companies.
- Longwall 3 Fund Longwall's third venture fund, under which Rebecca Todd joined as a partner in 2017 to invest in UK deeptech companies.
Quantifiable outcome
- OrganOx sold for $1.5 billion, delivering 19.2x return for fund investors
- +2 more outcomes
Companies that use Longwall Venture
Customer profileNamed customers10 records
Segments2 records
Ideal customer profiles2 records
Longwall Venture technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Longwall Venture partnerships and signals
Strategic signalScale indicators8 records
Recent moves6 records
Expansion highlights4 records
Longwall Venture competitors and assessment
Company assessmentMarket position
Strengths3 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Longwall Venture social profiles
Digital presenceLongwall Venture compliance and trust
Trust signalCompliance2 records
Longwall Venture financial estimates
Financial estimateRevenue estimate
Valuation estimate
Longwall Venture leadership team
Management profileNumber of profiles
Profiles5 records
Longwall Venture funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Longwall Venture M&A and investment
M&A and investmentM&A
Investments48 records
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Longwall Venture
What does Longwall Venture do?
Longwall Venture Partners is a UK-based venture capital firm that manages early-stage deeptech investment funds. The firm sources, invests in, and actively supports IP-protected deeptech companies in life sciences, physical sciences, advanced manufacturing, clean energy, and defence. It provides patient seed and pre-seed capital, typically £500,000 to £2 million per company, alongside hands-on company-building guidance from inception through exit.
Is Longwall Venture a public or private company?
Longwall Venture is a private company. It is classified as management employee owned and is currently operating.
When was Longwall Venture founded?
Longwall Venture was founded in 2011. It employs 1 to 10 people.
Where is Longwall Venture based?
Longwall Venture is headquartered in Harwell, United Kingdom, in the Europe region.
How does Longwall Venture make money?
One revenue line is on record: fund Management.
Does Longwall Venture have an API?
No public API is recorded for Longwall Venture.
What industry is Longwall Venture in?
Longwall Venture's product category is Venture Capital Fund Management. Its primary akta.pro industry code is FSANAAAD, Sector-Focused Venture Capital (Vertical Specialists). Its NAICS code is 52394 and its SIC code is 6282.