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# Longwall Ventures
- URL: https://entrepreneurplus.co.uk/investors/longwall-ventures/
- Published: 2026-10-15T16:39:52.000Z
- Updated: 2026-10-15T16:39:52.000Z
- Description: Pre-seed and seed investor turning UK research into deep tech businesses in manufacturing, health, defence and energy
- Author: Editorial Desk
- Tags: #ep-investor

Pre-seed and seed investor turning UK research into deep tech businesses in manufacturing, health, defence and energy

- Venture capital
- Oxford

Type

Venture capital

Based in

Oxford

Stages

Pre-seed, Seed, Series A, Series B+

Sector focus

Fintech, Insurtech

Cheque size

€1.5M–€3M

Fund size

Undisclosed

Founded

2008

Website

[longwallventures.com](https://longwallventures.com/?ref=entrepreneurplus.co.uk)

Longwall Ventures is a UK deep tech investor based at Harwell, Oxfordshire, that has been backing research-led companies since 2008\. It invests at pre-seed and seed stage, often before a product has found its market, in physical and life sciences businesses.

Target sectors include advanced manufacturing, life sciences, medical technologies, defence and clean energy. Initial cheques go up to £1.5m, with capacity for follow-on investment, and the firm looks for defensible technology in valuable markets with the potential for a tenfold return. Its portfolio has included OrganOx and Oxford Space Systems, and the team offers hands-on company-building support alongside capital.

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