28 August 2025

Most Active Angel Networks in the UK

Most Active Angel Networks in the UK Table of contents Angel networks, also known as angel groups, have become a crucial source of capital and

Words Sarah Cheesman

Angel networks, also known as angel groups, have become a crucial source of capital and expertise for early-stage startups across the UK. These networks of experienced investors play a key role in fuelling innovation, often stepping in at the very earliest stages of growth when traditional venture capital is harder to secure.

In this ranking, we explore the 10 most active angel networks in the UK, based on the number of rounds they have participated in. Together, these 10 funds have deployed billions of pounds into the UK’s high-growth ecosystem.

For those looking to dive deeper, download the full list of the top 100 angel networks below.

What is an angel network?

An angel investor is typically a high-net-worth individual (HNWI) who backs ambitious, high-growth businesses, often using capital earned through previous exits or entrepreneurial success. Compared to venture capital firms, which invest institutional money, angels provide a more personal and hands-on approach to funding.

Angel networks bring these investors together. They collaborate to discover, assess and back promising startups, usually by pooling their capital into shared funds or syndicating deals. Many also offer follow-on support, industry expertise, and access to valuable business networks, making them a powerful partner for any startup founder.

What kinds of companies do angel networks invest in?

Between 2011 and July 2025, we tracked 3,636 fundraisings involving UK angel networks, totalling an impressive £5.32b in combined investment. These deals supported 2,054 different companies, with a strong emphasis on early-stage, high-growth opportunities.

Angel networks remain most active at the earliest stages of company development. Of all deals tracked, 44% took place at the seed stage and 45% at the venture stage, with just 9% at the growth stage and 2% at the established stage. This reinforces the important role angel investors play in helping young companies get off the ground, long before many institutional investors step in.

London and Edinburgh continue to dominate as the UK’s leading angel network hubs, but thriving communities can also be found in Glasgow, Cambridge, Oxford, and Bristol. While some angel networks invest nationwide, many maintain a regional focus, supporting innovation in their local ecosystems.

In terms of industry focus, angel-backed companies span a broad range of industries. Around 8% of investee businesses operate in application software, while other common sectors include server software, trading platforms, online marketplaces, medical devices, biotechnology, and renewable energy. These trends point to a growing appetite for IP-rich, scalable businesses in both tech and life sciences.

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How has angel investing changed over time?

Angel investing in the UK has grown in both volume and sophistication over the past decade, peaking in 2021 and 2022 with record levels of funding activity. In 2021, angel networks participated in 394 fundraisings worth a combined £850m. The following year saw a slight drop in deal volume (380 fundraisings) but a new high in total value, with £866m invested.

Activity dipped in 2023 and 2024, reflecting wider market uncertainty, but still remained strong. In 2023, angel groups were involved in 289 deals worth £582m, followed by 267 deals totalling £586m in 2024. As of mid-2025, we’ve already tracked 99 deals worth £212m, suggesting another solid year is underway.

It’s worth noting that these figures only include rounds where angel network involvement was confirmed, either through press announcements or private disclosure to Beauhurst. In reality, many angel groups prefer to operate quietly, meaning the true volume of deals is likely even higher.

One thing is clear: angel networks are now a fundamental part of the UK’s high-growth funding ecosystem. With many groups operating sidecar funds and providing hands-on support to founders, they’ve become far more than just early cheque-writers — they’re long-term partners in growth.

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The UK’s most active angel networks

Founded in 2009, Kelvin Capital is a Glasgow-based angel syndicate and a partner of the Scottish Enterprise Co-Investment Fund. It backs businesses across the UK, with a sector-agnostic approach but a strong track record in application software. The network typically supports companies at the seed, venture, and growth stages, taking an average stake of 21.7%.

Recent investments include Sofant Technologies (£3.4m), Snappy Shopper (£2.5m), and ScotBio (£5.6m), reflecting its focus on scaling ventures with meaningful follow-on support. Kelvin Capital frequently co-invests alongside organisations such as the Scottish Co-Investment Fund, Par Equity, and Eos Advisory.

Founded in 2004 as Tweed Renaissance Investors Capital, TRICAPITAL is an angel network based in Melrose, managed by TRICAPITAL Angels Limited. The group invests primarily in Scottish businesses, typically committing between £250k and £2m per deal. Its portfolio spans multiple sectors, though pharmaceuticals have been the most common focus.

Notable recent investments include Carcinotech (£4.29m), Glen Clova Scientific (£4.0m), and Aveni (£2.75m). TRICAPITAL has a strong co-investment record, with the Scottish Co-Investment Fund (82 co-investments) and Archangels (42) among its most frequent partners.

24Haymarket blends professional investment rigour with the agility of a private angel network. Founded in 2012 and headquartered in Westminster, it has been involved in rounds worth £405m across 162 deals, with average rounds of £2.5m.

The group typically invests between £1m and £5m and often seeks a board seat to bring active support to its portfolio companies. Its focus lies in digital and application software businesses, regularly supporting ventures through multiple follow-on rounds. With a 23% average stake per deal and a £9.5m average pre-money valuation, 24Haymarket continues to set a high bar for early-stage dealmaking.

Wealth Club has emerged as a leading force in direct-to-company angel investing, participating in 188 fundraisings with a total value of £413m. Based in Bristol, it caters to high-net-worth and experienced investors, usually writing cheques between £500k and £4m.

With an average deal size of £2.4m and a typical investor stake of 12%, Wealth Club targets high-growth ventures, particularly in application software and digital tech, with one of the highest average pre-money valuations on this list, at £23.1m. Their model allows members to back companies curated by the platform itself, combining scale with selectivity.

Southwark-based Envestors has a broad reach and an even broader network. With over 4,000 sophisticated investors, the group has backed 133 companies through 189 fundraisings totalling £228m. Its sweet spot lies in application software and SaaS, and it invests from as little as £5k up to £10m.

With average round sizes of £1.2m and a 21% average stake, Envestors offers a flexible yet consistent approach to early-stage investing. Past exits include Chargemaster (acquired by BP) and SimplyCook (acquired by Nestlé), signalling strong outcomes for its portfolio companies.

Archangels is a heavyweight in Scotland’s startup scene and the oldest continuously-operating angel syndicate in the world. With £253m deployed across 205 rounds, this Edinburgh-based group primarily invests in Scottish tech and life sciences companies, from seed to growth stage.

It typically invests £250k to £2m, with an average round size of £1.4m and investor stake of 24%. Angels in the network pay an annual fee of £2,000 and bring decades of experience to the table. Recent investments include medtech and marine infrastructure startups, reflecting the syndicate’s diverse and evolving interests.

Established in 1994, Minerva Business Angel Network operates from Warwick and is managed by the University of Warwick Science Park. The group invests in a wide range of technology businesses, with frequent activity in sectors such as application software and pharmaceuticals. Typical investments range between £100k and £2m at the seed, venture, and growth stages.

Recent fundraisings include Locate Bio (£10.0m), Linear Diagnostics (£2.0m), and WASE (£1.1m), highlighting its role in supporting high-growth ventures in biotech, diagnostics, and sustainability. Minerva frequently co-invests with the likes of Mercia Fund Managers, Midven, and British Business Bank programmes.

Based in Edinburgh, Equity Gap has funded 222 rounds since 2010, totalling £279m. The syndicate usually invests between £100k and £500k, targeting seed and early venture-stage companies. Its sweet spot lies in digital technologies and application software, with an average investment round of £1.3m and a typical investor stake of 15%.

Equity Gap is known for staying engaged post-investment — offering pitch coaching, mentoring, board input, and exit planning support. With a growing portfolio and strong ties to Scotland’s innovation scene, it plays a key role in the region’s startup ecosystem.

In second place is Cambridge Angels, with 298 fundraisings completed worth a staggering £884m. Based in South Cambridgeshire, this experienced network focuses on application software and digital technologies, typically investing between £150k and £1.5m per deal. Cambridge Angels backs high-potential businesses at every stage — from R&D through to growth — with an exit horizon of seven to ten years.

With average deal sizes over £3m and pre-money valuations nearing £9m, this group stands out for both its scale and sophistication. Nearly three-quarters of its members are exited entrepreneurs, making it a powerful source of both capital and guidance for startups across the UK.

Oxfordshire Investment Opportunity Network (OION) is an angel network managed by Oxford Innovation Finance*. In 2020, it merged with the Oxford Angel Network. The syndicate invests across the UK, writing cheques of £100k to £2m, with a concentration in application software, biotech, and clean technology.

Recent deals include Kelpi (£4.35m), Oxford Space Systems (£4.0m), and Argonaute RNA (£1.75m). OION maintains an active network of co-investors, often working alongside funds such as Oxford Sciences Innovation and Oxford Technology Management.

*Oxford Innovation Finance also manages Oxford Innovation Growth Fund. However, as this is an EIS fund, it is not included in this ranking.

The future of angel networks in the UK

The UK’s angel investing landscape has evolved significantly over the past decade, scaling in size, sophistication, and impact. The networks featured in this list are more than just funders; they’re mentors, connectors, and champions of innovation. From seed-stage startups to scaling ventures, angel networks are providing the capital and support that help turn bold ideas into high-growth businesses.

What sets them apart is their personalised, hands-on approach. Unlike institutional investors, angel groups often bring deep sector knowledge and lived entrepreneurial experience to the table, making them uniquely positioned to nurture the UK’s next generation of success stories.

As the ecosystem continues to mature, expect to see even more collaboration, professionalisation, and impact from these networks. And with so many promising ventures still in need of early backing, their role in driving the UK’s innovation economy is only set to grow.

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