216 series A investors funding UK startups (free list)
Find investors funding UK startups with traction, revenue and growth signals.
Updated daily by John-Pierre ClarkLatest Series A VC Activity
Oyster Therapeutics raises £44.7m led by 4BIO Capital with Eli Lilly
10 November 2026
Updated daily by John-Pierre Clark| Series A VCs | Investment Focus | Startup Investments | Round Size | Connect |
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 GALLOS Technologies( ) Gallos Technologies is a London-based venture studio and specialist investor foc... London  | ||||
 Empirical Ventures( ) Empirical is a specialist VC and venture builder based in Europe, focusing on ea... Bristol | ||||
 Oxford Science Enterprises( ) The firm focuses on investing in Life Sciences, Health Tech, and Deep Tech, prim... Oxford | ||||
 Mercia( ) Mercia is a venture capital firm focused on fuelling UK business ambitions throu... Manchester | ||||
 PXN Ventures( ) PXN Ventures is a UK-based venture capital firm focused on backing high-growth c... Manchester | ||||
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 SFC Capital( ) SFC Capital is a venture capital firm that focuses on investing in early-stage t... London | ||||
 Twin Path Ventures( ) Twin Path Ventures is a venture capital firm focused on investing in AI-first st... London | ||||
 Nauta Capital( ) Nauta is a venture capital firm focused on investing in early-stage B2B software... London | ||||
 Advent Life Sciences( ) Advent Life Sciences is a leading trans-Atlantic venture capital firm focused on... London | ||||
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 Old College Capital( ) Old College Capital (OCC) is the University of Edinburgh’s venture investment fu... Edingburgh | ||||
 Archangels( ) Archangels focuses on investing in disruptive technology with protectable intell... Edinburgh | ||||
 MMC Ventures( ) MMC Ventures is a London-based venture capital firm that has backed early-stage,... London | ||||
 Notion Capital( ) Notion Capital is an early-stage venture capital firm that specialises in softwa... London | ||||
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 Episode 1 Ventures( ) The firm specialises in investing in Pre-Seed and Seed stage B2B software compan... London | ||||
 LocalGlobe( ) LocalGlobe is a venture capital firm that partners with founders from pre-seed a... London | ||||
 Molten Ventures( ) Molten Ventures focuses on technology-driven companies across various sectors. T... London | ||||
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 IW Capital( ) IW Capital focuses on investing in UK businesses, enabling investors to benefit ... London | ||||
 Mouro Capital( ) Mouro Capital is a venture capital firm specialising in fintech innovations. The... London | ||||
 Index Ventures( ) Index Ventures invests in visionary founders across diverse industries, prioriti... London | ||||
 Puma Growth Partners( ) Partners for Growth is the private equity division of Puma Capital Group, invest... London | ||||
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 Anthemis( ) Anthemis Group is a venture capital firm focused on reinventing finance to creat... London | ||||
 Dawn Capital( ) Dawn Capital focuses on investing in European B2B software companies. They targe... London | ||||
 AVP (AXA Venture Partners)( ) AVP focuses on investments in sectors related to technology and innovation, spec... London | ||||
 Mercia Ventures’ North East Venture Fund( ) Mercia focuses on investing in innovative SMEs across various sectors including ... Henley-in-Arden | ||||
 SV Health Investors( ) SV Health Investors is a global private equity and venture capital investment pl... London | ||||
 Ascension Ventures( ) Ascension is a leading UK venture capital firm focused on empowering tech innova... London | ||||
 Maven Capital Partners( ) Maven is a leading UK private equity firm specialising in buyouts, growth capita... London | ||||
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 Brighteye Ventures( ) Brighteye Ventures is a venture capital firm that invests in startups aimed at e... London | ||||
 Cornerstone VC( ) Cornerstone is a venture capital firm that focuses on investing in the sectors o... London | ||||
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 Clean Growth Fund( ) This venture capital firm focuses on empowering early-stage entrepreneurs addres... London | ||||
 Oxford Technology Management( ) Oxford Technology has specialised in investing in startup and early-stage techno... Oxford | ||||
 First Imagine! Ventures( ) London | ||||
 IQ Capital( ) IQ Capital is a dedicated European deep tech venture capital firm, specialising ... London, Cambridge | ||||
 Entree Capital( ) Entrée Capital is a venture capital firm focusing on early-stage investments, su... London | ||||
 Balderton Capital( ) Balderton Capital is a venture capital firm focusing primarily on technology and... London | ||||
 JamJar Investments( ) JamJar is an early-stage European consumer venture capital firm established by t... London | ||||
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UK Series A Investors and Why They Matter
💡 This page features the most active UK investors writing Series A cheques. These are the firms backing startups that have moved beyond early validation and are ready to scale.
Whether you are preparing to raise your first institutional round or building relationships ahead of time, this list helps you identify the right investors by sector, stage and typical cheque size.
Looking for other types of investors? Explore our dedicated lists for angel investors, pre-seed VCs, seed VCs, or browse venture capital firms by sector.
Why Series A matters for your startup
Series A funding is where investors shift from backing ideas to backing proven businesses. The focus moves to repeatability, scale and execution. Startups raising Series A typically show clear product–market fit, early but consistent traction, and a credible plan for growth.
A successful Series A round can enable you to hire senior talent, professionalise operations, expand into new markets and access strategic support that accelerates growth.
What Series A investors are looking for
- Strong traction: recurring revenue, solid user growth or repeatable sales.
- Clear metrics: retention, unit economics and data that shows momentum.
- A scalable plan: a realistic path to larger markets and future rounds.
- Team credibility: founders and leaders capable of executing at scale.
Below is a curated list of active Series A VCs and investors in the UK, with links to websites, LinkedIn profiles and contact details. Use the filters to narrow by sector or location before starting outreach.
216 Most Active Series A Investors In The UK
Series A VCs and investors (websites, linkedin and twitter accounts)
Click here for a full list of 876 UK VC Funds
How to use this Series A investor list
Series A investors are selective and stage-specific. This list works best when used to build a focused shortlist rather than broad outreach. Start by identifying investors that actively back your sector and business model, then review recent investments to understand cheque sizes and expectations.
- Shortlist 5–10 investors with clear sector alignment
- Review recent portfolio companies and typical round sizes
- Look for warm introduction paths through founders, angels or operators
- Tailor your pitch to metrics, execution and growth plans, not just vision
Are you ready for Series A?
Most UK Series A investors expect clear product–market fit and evidence that growth is repeatable. There is no fixed rule, but founders raising Series A often show:
- Consistent revenue or strong, sustained usage growth
- Retention data that demonstrates customer value
- A scalable acquisition or sales model
- A credible plan for deploying capital over the next 18–24 months
If you are still validating your product or experimenting with pricing, exploring pre-seed or seed investors may be a better next step for now.
What to do next
Once you have shortlisted investors, focus on preparation. Strong Series A rounds are driven by clarity: clean metrics, a compelling growth narrative and a realistic operating plan. Many founders start by pressure-testing their pitch and assumptions before outreach. If you want help understanding how investors will view your metrics or positioning, you can explore related resources or upgrade for deeper investor insights and advanced filters.
Frequently asked questions
Series A investors back startups that have moved beyond the earliest stages and are showing traction, customer growth or recurring revenue. These investors usually help companies scale teams, operations and go-to-market activity.
Series A investors often look for product-market fit, strong growth potential, clear market demand and evidence that the startup can scale. Metrics such as revenue growth, retention and customer traction are usually important at this stage.
Series A investment sizes vary depending on the sector and investor, but rounds are usually larger than seed funding and are designed to help startups accelerate growth and expand operations.
Founders should approach Series A investors with a clear growth story, traction metrics, financial projections and evidence of market demand. Warm introductions and strong investor fit can significantly improve fundraising outcomes.
This list includes UK Series A investors backing startups across multiple sectors and stages. The full database includes additional investor details and filters to help founders identify relevant investors faster.
