Northern Gritstone is a venture capital firm. Based in Manchester, England, United Kingdom. The known portfolio counts 11 companies, including AssetCool, Literal Labs, Sitehop, Optalysys, Partful and Cytotrait.
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Investment focus
Who to pitch at Northern Gritstone
Northern Gritstone portfolio companies (11)
- AssetCool
- Literal Labs
- Sitehop
- Optalysys
- Partful
- Cytotrait
- AmpliSi
- Apini Therapeutics
- IVFmicro
- Phlux Technology
- PhovIR Technologies
Co-investors
Funds that share portfolio companies with Northern Gritstone.
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About Northern Gritstone
The firm's listing covers sectors AI, Climate, Hardware and Healthcare, and focus areas AI Infrastructure, AgriTech, Biotech and Chemical; known deals cluster at Pre-Seed, Seed and Series A.
Of the 4 people on file at Northern Gritstone, Cassie Doherty (Investment Director), Andy Naylor (Investment Director) and Gareth Llewellyn (Investment Director) are listed as the contacts to approach first.
Across the known portfolio, 20 co-investors appear alongside Northern Gritstone, including Mercia Asset Management, SVV (Sure Valley Ventures) and Uk Innovation & Science Seed Fund.
Frequently asked questions
What is Northern Gritstone?
Northern Gritstone is a venture capital firm based in Manchester, England, United Kingdom, with a known portfolio of 11 companies. The portfolio comes from public investment records rather than from the firm, so deals that never surfaced publicly are not in it.
What does Northern Gritstone invest in?
Listed sectors include AI, Climate, Hardware and Healthcare; listed focus areas include AI Infrastructure, AgriTech, Biotech and Chemical. Those tags come from the portfolio attached to the firm, so they describe what has been backed rather than a stated mandate for what comes next.
What stage does Northern Gritstone invest at?
The known deals of Northern Gritstone include Pre-Seed, Seed and Series A rounds. Check that against your own round before reaching out: stage mismatch is the most common reason a well matched sector still goes nowhere.
Who should I pitch at Northern Gritstone?
3 of the 4 people on file at Northern Gritstone are listed as contacts for the firm. All 4 have their own profile page.
How do I contact Northern Gritstone?
Any email address on file for the firm is masked on this page and readable inside RaiseHunt after you create an account. The 4 people attached to the firm have their own pages, each showing whether an address is on file for them.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal