13 angel investors writing checks for London startups in 2026

London has 4,000+ active angel investors and 150+ organised networks. These 13 angel investors and syndicates are writing pre-seed and seed checks for London startups right now.

London is Europe's largest angel market. UK angels deployed over £2.5B into startups in 2024, and 2025 tracked 99 angel deals worth £212M by mid-year.

Most London angel checks fall between £25K and £75K. Syndicate leads and networks write larger tickets from £100K to £5M by pooling individual investors.

SEIS gives investors 50% income tax relief on up to £200K per year. EIS gives 30% relief, and from April 2026, EIS annual company limits doubled from £5M to £10M. Both schemes drive UK angel activity.

Set up an Ellty data room with your pitch deck and cap table before approaching angels. Most networks require materials before scheduling a pitch slot.

What is a London angel investor?

A London angel investor puts personal capital into pre-seed and seed startups in exchange for equity. They range from individuals writing £10K checks to organised syndicates pooling £5M+ rounds led by experienced operators.

Angel networks screen deals before presenting them to members. 24Haymarket runs investment committees. Envestors distributes your raise to 4,000+ vetted investors. Each network has its own process.

Most angels invest via SEIS or EIS for tax relief. SEIS gives 50% income tax relief on up to £200K. EIS gives 30% with doubled limits from April 2026.

Compare London seed investors and London AI investors if you're raising a larger round. Check what documents go in a data room before pitching any network.

13 London angel investors

1. 24Haymarket

24Haymarket is one of London's most active angel groups with a network of 100+ private investors and 3,000+ years of collective operational experience. They've been involved in rounds worth £405M across 162 deals since 2012. Their latest deal was Dragonfly AI's €5.7M in January 2026.

• Recent Deals: Dragonfly AI €5.7M (Jan 2026); WATR investment (Aug 2025); £405M across 162 deals total; 14 portfolio exits; Wattbike and proSapient portfolio
• LinkedIn: 24Haymarket LinkedIn
• Sector Focus: Fintech, cleantech, healthtech, web security, logistics
• Stage Focus: Seed to Series A
• Location: Westminster, London
• Website: 24haymarket.com

2. Envestors

Envestors is an FCA-regulated angel platform connecting startups with 4,000+ vetted angels and family offices. They've backed 133 companies through 189 fundraisings totalling £228M. Their partner network of 40+ UK angel groups means one listing reaches investors nationally.

• Recent Deals: 99 angel deals worth £212M tracked in 2025 H1; 133 companies backed; 189 fundraisings totalling £228M; average round size £1.2M; 21% average stake
• LinkedIn: Envestors LinkedIn
• Sector Focus: SaaS, application software, fintech, healthtech
• Stage Focus: Seed to Series A
• Location: London, UK
• Website: envestors.co.uk

3. Angel Academe

Angel Academe backs female-founded tech startups with 400+ active members, most of whom are women. They invested in LabCycle in January 2026 and made 2 investments in 2025. They focus on medtech, cleantech, fintech, and enterprise software.

Upload your deck to Ellty before applying. Angel Academe requires a pre-money valuation of £1M-£15M and SEIS/EIS eligibility.

• Recent Deals: LabCycle seed investment (Jan 2026); 2 investments in 2025; medtech and cleantech portfolio; female-founded mandate; SEIS/EIS required
• LinkedIn: Angel Academe LinkedIn
• Sector Focus: Female-founded tech, medtech, cleantech, fintech
• Stage Focus: Pre-seed to seed
• Location: London, UK
• Website: angelacademe.com

4. SyndicateRoom

SyndicateRoom's Access EIS fund builds portfolios of 30+ companies hand-picked by top UK angels. Their first investments from a new BBB initiative with Angel Academe began in Q2 2026. Individual angel checks start at £5K minimum.

• Recent Deals: BBB co-investment initiative with Angel Academe launched Q2 2026; Access EIS fund active; 30+ company portfolios; £5K minimum; active UK angel-led syndication
• LinkedIn: SyndicateRoom LinkedIn
• Sector Focus: Tech, deep tech, healthtech, enterprise software
• Stage Focus: Seed to Series A
• Location: Cambridge and London, UK
• Website: syndicateroom.com

5. Cambridge Angels

Cambridge Angels has invested since 2001, backing 150+ companies across 298 fundraisings worth £884M. They invest £150K-£1.5M per deal in deep tech and software companies connected to the Cambridge and London innovation corridor.

• Recent Deals: 298 fundraisings worth £884M total; 150+ companies backed since 2001; deep tech and digital focus; £150K-£1.5M per deal; active university spinout pipeline
• LinkedIn: Cambridge Angels LinkedIn
• Sector Focus: Deep tech, application software, digital technologies
• Stage Focus: Seed to Series A
• Location: Cambridge and London, UK
• Website: cambridgeangels.com

Use Ellty to share your technical documentation securely with Cambridge Angels. They review IP and technology depth before scheduling pitch events.

6. Angels in MedCity

Angels in MedCity connects 400+ angels and VCs focused on London life sciences startups. They cover advanced therapies, diagnostics, AI-enabled health, digital health, and medtech. Their investment hub matches founders to investors by subsector.

• Recent Deals: 400+ angel and VC members; life sciences and digital health focus; advanced therapies and diagnostics pipeline; AI-enabled health mandate; London hospital network
• LinkedIn: Angels in MedCity LinkedIn
• Sector Focus: Life sciences, medtech, digital health, diagnostics
• Stage Focus: Pre-seed to seed
• Location: London, UK
• Website: angelsinmedcity.com

7. Newable Ventures

Newable is a network of 500+ angel investors focused on deep tech, acquired by Maven Capital in December 2023. They've participated in 50+ EIS investments raising £36M in two years. Portfolio includes Q-Bot, Hummingbird Technologies, and Threads Styling.

• Recent Deals: 50+ EIS investments raising £36M; Q-Bot portfolio; Hummingbird Technologies portfolio; Threads Styling portfolio; Maven Capital backing
• LinkedIn: Newable Ventures LinkedIn
• Sector Focus: Deep tech, AI, enterprise software, cleantech
• Stage Focus: Seed
• Location: London, UK
• Website: newable.co.uk

8. Angel Investment Network

Angel Investment Network is the world's largest online angel platform, connecting founders with angels across London and globally. They match investors to opportunities by sector and stage. Individual angel checks typically range from £10K to £500K.

• Recent Deals: Active global angel matching platform; London-headquartered; multi-sector coverage; £10K-£500K typical checks; pre-seed and seed focus
• LinkedIn: Angel Investment Network LinkedIn
• Sector Focus: All sectors, tech-focused
• Stage Focus: Pre-seed to seed
• Location: London, UK
• Website: angelinvestmentnetwork.co.uk

9. Seedcamp

Seedcamp has 492 portfolio companies and writes £100K-£1M first checks at pre-seed and seed. They run application cycles and act as a gateway to London's broader VC network. Portfolio includes TransferWise (Wise), UiPath, and Revolut.

Set up an Ellty data room with your product metrics and financials before applying. Seedcamp evaluates technical founding teams first.

• Recent Deals: 492 portfolio companies; active 2025-2026 UK deployment; Wise and Revolut portfolio; £100K-£1M first checks; pre-seed and seed mandate
• LinkedIn: Seedcamp LinkedIn
• Sector Focus: SaaS, marketplace, fintech, AI, developer tools
• Stage Focus: Pre-seed to seed
• Location: London, UK
• Website: seedcamp.com

10. Passion Capital

Passion Capital closed a €46M fourth seed fund in April 2026. They invest at pre-seed and seed with 107 portfolio companies and 3 unicorns. Their focus spans consumer, fintech, AI, and enterprise SaaS.

• Recent Deals: €46M Passion Capital IV close (Apr 2026); 10 investments in 2025; 107 portfolio companies; 3 unicorns; Marshmallow growth backing
• LinkedIn: Passion Capital LinkedIn
• Sector Focus: Consumer, fintech, AI, enterprise SaaS
• Stage Focus: Pre-seed to seed
• Location: London, UK
• Website: passioncapital.com

11. LocalGlobe

LocalGlobe writes £200K-£2M first checks and made 25 investments in 2025. They backed Depop (sold to eBay for $1.2B), Zoopla, and Citymapper. Their pre-seed and seed focus covers consumer, marketplace, and developer tools.

• Recent Deals: 25 investments in 2025; Depop exit ($1.2B eBay); active pre-seed and seed portfolio; consumer and marketplace mandate; London first-check focus
• LinkedIn: LocalGlobe LinkedIn
• Sector Focus: Consumer, marketplace, developer tools, climate tech
• Stage Focus: Pre-seed to seed
• Location: London, UK
• Website: localglobe.vc

12. Playfair Capital

Playfair Capital is a London pre-seed and seed fund backing AI, fintech, and B2B SaaS companies. They write £100K-£1M first checks and have a strong network of operator angels who co-invest alongside the fund.

• Recent Deals: Active pre-seed and seed portfolio; AI and fintech focus; operator angel co-investment network; £100K-£1M first checks; London-headquartered
• LinkedIn: Playfair Capital LinkedIn
• Sector Focus: AI, fintech, B2B SaaS, enterprise
• Stage Focus: Pre-seed to seed
• Location: London, UK
• Website: playfaircapital.com

13. Founders Factory

Founders Factory is a London-based venture studio and early-stage investor backed by corporates including L'Oreal, Aviva, and Guardian Media Group. They invest £150K-£500K at pre-seed alongside operational support and corporate distribution channels.

• Recent Deals: Active pre-seed investment and venture studio; L'Oreal and Aviva corporate backing; AI and sustainability portfolio; £150K-£500K checks; operational support included
• LinkedIn: Founders Factory LinkedIn
• Sector Focus: AI, sustainability, health, fintech, media
• Stage Focus: Pre-seed to seed
• Location: London, UK
• Website: foundersfactory.com

How SEIS and EIS drive angel deals

SEIS gives investors 50% income tax relief on up to £200K per year. EIS gives 30% on larger checks. From April 2026 EIS company limits doubled to £10M annual and £24M lifetime.

Both schemes make angel investing dramatically more tax-efficient. A £50K SEIS investment effectively costs £25K after tax relief. That drives deal flow that wouldn't exist otherwise.

Nearly all London angel networks require SEIS or EIS eligibility. Apply for Advance Assurance before pitching. Without it you're locked out of most organised angel capital. Read how to prepare for due diligence for what angels check.

How to choose the right angel network

Match your sector to the network's focus. Angels in MedCity covers life sciences. 24Haymarket covers fintech and cleantech. Angel Academe backs female-founded tech. Applying to the wrong network wastes time.

Check round size requirements. Envestors handles £150K-£5M. Angel Academe works below £500K. Cambridge Angels sits between £150K and £1.5M. Know your target round before approaching.

Use Ellty to share your deck and track which investors actually open it. Compare London fintech investors or London healthtech investors if your round is larger than seed.

What angels check before investing

Angels check team credentials and domain expertise first. A founding team with relevant operating experience closes faster than first-time founders in unfamiliar territory.

Product-market fit signals matter more than revenue at pre-seed. Waitlists, LOIs, pilot results, or beta user retention all count. Angels want evidence that customers need what you're building.

Cap table cleanliness is a quiet dealbreaker. Angels pass on companies with messy equity structures, overvalued priors, or founder vesting issues. Review due diligence documents to prepare your cap table.