Series A investors backing UK startups with traction and growth.

💡 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.
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.
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.
| Series A VCs | Investment Sector | Location | Funding Round | Contact Details |
|---|---|---|---|---|
London | ||||
![]() No Label Ventures(more info 🔒) No Label Ventures focuses on supporting immigrant entrepreneurs in Europe, ... | London | |||
Manchester | ||||
![]() Northstar Ventures(more info 🔒) Northstar Ventures invests in early and later stage, high growth companies ... | Newcastle | |||
London | ||||
![]() Notion Capital(more info 🔒) Notion Capital is an early-stage venture capital firm that specialises in s... | London | |||
London | ||||
London | ||||
London | ||||
London | ||||
![]() Octopus Ventures(more info 🔒) This venture capital firm focuses on investing in sectors such as B2B Softw... | London | |||
![]() Redrice Ventures(more info 🔒) Redrice Ventures is a UK-based venture capital firm specialising in premium... | London | |||
![]() Old College Capital(more info 🔒) Old College Capital (OCC) is the University of Edinburgh’s venture investme... | Edingburgh | |||
![]() One Peak Partners(more info 🔒) One Peak is a venture capital firm that focuses on investing in global soft... | London | |||
London | ||||
Oxford | ||||
London | ||||
London | ||||
![]() Oxford Capital(more info 🔒) Oxford Capital is a venture capital firm based in Oxford, specialising in e... | London | |||
![]() Oxford Science Enterprises(more info 🔒) The firm focuses on investing in Life Sciences, Health Tech, and Deep Tech,... | Oxford | |||
![]() Mercia Ventures’ North East Venture Fund(more info 🔒) Mercia focuses on investing in innovative SMEs across various sectors inclu... | Henley-in-Arden | |||
London | ||||
Oxford | ||||
London | ||||
![]() Par Equity(more info 🔒) This venture capital firm, founded in 2008, operates from offices in Edinbu... | Edinburgh | |||
![]() Parkwalk Advisors(more info 🔒) Parkwalk is a leading UK growth fund manager focused on investing in world-... | London | |||
![]() Passion Capital(more info 🔒) Passion Capital is a venture capital firm focusing on early-stage investmen... | London | |||
![]() Pembroke VCT(more info 🔒) Pembroke VCT is a c.£230m+ fund established in 2013, focusing on growth-sta... | London | |||
London | ||||
London | ||||
London | ||||
London | ||||
London | ||||
![]() Playfair Capital(more info 🔒) The venture capital firm focuses on providing an unfair advantage to founde... | London | |||
London | ||||
London | ||||
London | ||||
London | ||||
London | ||||
![]() Portfolio Ventures(more info 🔒) The PV Angel Fund is an early-stage investor focusing on fintech, SaaS, and... | London | |||
![]() Praetura Ventures(more info 🔒) The firm focuses on providing more than just capital, emphasising a holisti... | Manchester | |||
London | ||||
London | ||||
London | ||||
London | ||||
London | ||||
London | ||||
London | ||||
London | ||||
Leicester |
Click here for a full list of 801 UK VC Funds
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.
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:
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.
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.
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.