Active Oxford angel investors writing checks in 2026

13 angel investors and networks are actively funding Oxford startups in 2026. OION closed its 2024/25 EIS Growth Fund and launched a new one for 2026/27. Oxford Innovation Finance backed HoxtonAI, Study Hall, and Wilder Sensing in recent months. The UK angel market deploys £2.3B annually.

Oxford angel investors aren't just cheque writers. The networks here provide introductions to OSE, Parkwalk, and Longwall Ventures when your company is ready to scale.

Don't approach more than one network at a time without a clear pitch and financial model. Most Oxford angel investors share deal flow and compare notes. Showing up unprepared damages your reputation across the entire ecosystem.

Set up an Ellty data room with your financial model, cap table, and executive summary before approaching any Oxford angel network. Most angel showcase events require organised materials within 48 hours of confirmation.

What is an Oxford angel investor?

Oxford angel investors are typically exited founders, senior executives, or successful scientists who invest their own capital into early-stage Oxford companies. They differ from institutional VCs by moving faster, writing smaller cheques, and offering direct operational experience.

Most Oxford angel investments are SEIS or EIS eligible. UK angels get 50% income tax relief on SEIS investments and 30% on EIS investments. That's a significant reason why angels write cheques into pre-revenue Oxford startups.

Check sizes for individual Oxford angels range from £5,000 to £250,000. Networks like OION typically co-invest as a syndicate, bringing multiple angels together for a single round of £100K to £2M. That's enough to bridge most Oxford founders to their first institutional VC round.

Read how Oxford AI investors differ from angel investors. Several Oxford founders raise angel capital first via OION or Oxford Capital, then graduate to OSE or Longwall Ventures at seed or Series A.

13 Oxford angel investors

1. OION (Oxford Investment Opportunity Network)

OION is the most active UK angel network, ranked by Beauhurst in 2025. It's part of Oxford Innovation Finance, which also runs the Oxford Innovation EIS Growth Fund. OION backed HoxtonAI (space analytics), Study Hall (£350K, 2025), and Wilder Sensing (biodiversity AI) in recent months. The 2026/27 EIS Growth Fund is open for investment with a minimum of £10,000.

Set up an Ellty data room with your financial model and executive summary before applying to an OION Showcase. Materials are reviewed within 48 hours of the application.

• Recent Deals: HoxtonAI follow-on (April 2026); Study Hall £350K (2025); Wilder Sensing (2024/25); July 2026 Showcase announced
• LinkedIn: Oxford Innovation Finance LinkedIn
• Sector Focus: Software, biotech, cleantech, AI, UK-wide
• Stage Focus: Pre-seed to Series A
• Location: Oxford, UK
• Website: oxfordinnovationfinance.co.uk

2. Oxford Venture Angels

Oxford Venture Angels is an invitation-only angel network for exited entrepreneurs and senior professionals from tech and healthcare. They hold events every 6-8 weeks in Oxford and London. Unlike OION, you can't apply online - you need a warm introduction from an existing member or a portfolio company.

• Recent Deals: Oxford ecosystem angel deals; invitation-only network; bi-monthly events in Oxford and London
• LinkedIn: Oxford Venture Angels LinkedIn
• Sector Focus: Tech, healthcare, Oxford ecosystem
• Stage Focus: Pre-seed to Series A
• Location: Oxford and London
• Website: oxfordventureangels.com

3. Oxonian Ventures

Oxonian Ventures (formerly the Oxford Angel Fund) is a £15M venture fund investing in companies founded by University of Oxford alumni. They launched Fund III in July 2024 and have backed 30+ companies across two previous funds. Oxonian Ventures is now open to US accredited investors who studied at Oxford.

• Recent Deals: Fund III first close at $15M (July 2024); 30+ portfolio companies across Funds I and II; Oxford alumni-focused mandate
• LinkedIn: Oxonian Ventures LinkedIn
• Sector Focus: Oxford alumni-founded companies, all sectors
• Stage Focus: Pre-seed to Series A
• Location: Oxford and US
• Website: oxonianventures.com

4. Oxford Technology Management / WOTAN

Oxford Technology Management runs WOTAN (Wider Oxford Technology Angel Network) with 250+ registered members. Monthly pitch events are held on the first Thursday of each month. They also manage two EIS funds - a three-year combined SEIS/EIS fund and a knowledge-intensive EIS fund - making WOTAN one of the few Oxford angel networks with a dedicated fund structure.

• Recent Deals: Monthly showcase events active 2026; SEIS/EIS fund deployment ongoing; 250+ member angel network; Oxford tech and science spinouts
• LinkedIn: Oxford Technology Management LinkedIn
• Sector Focus: Oxford tech and science spinouts, EIS
• Stage Focus: Pre-seed to Series A
• Location: Oxford, UK
• Website: oxfordtechnology.com

5. Oxford Capital

Oxford Capital manages EIS and SEIS funds focused on Oxford-area technology and life science companies. They backed NavLive's £4M round in May 2025 alongside University of Oxford. Oxford Capital co-invests with OION and Longwall Ventures on seed-stage Oxford rounds. Oxford Capital partnered with OSE as sponsors in March 2026.

• Recent Deals: NavLive £4M (May 2025); Oxford-area EIS/SEIS fund active 2025-2026; OSE sponsorship partnership (March 2026)
• LinkedIn: Oxford Capital LinkedIn
• Sector Focus: Oxford-area tech, life sciences, EIS
• Stage Focus: Seed to Series A
• Location: Oxford, UK
• Website: oxcp.com

6. Parkwalk Advisors

Parkwalk Advisors manages £450M+ in EIS funds and is the most active angel-accessible EIS route for Oxford founders. They backed Brainomix's £4.8M Series C extension in February 2026 and AccelerComm's $15M in June 2025. Oxford founders can pitch Parkwalk directly - they review all applications and respond within three weeks.

• Recent Deals: Brainomix £4.8M Series C extension lead (Feb 2026); AccelerComm $15M (June 2025); £450M+ AUM; Oxford and Cambridge EIS mandate
• LinkedIn: Parkwalk Advisors LinkedIn
• Sector Focus: Oxford spinouts, life sciences, deep tech, EIS
• Stage Focus: Pre-seed to Series A
• Location: London with Oxford focus
• Website: parkwalk.vc

7. Longwall Ventures

Longwall Ventures backs early-stage Oxford spinouts in AI and deep tech alongside OSE and Oxford Technology Management. They participated in the June 2026 Oxford Venture Tour and co-invested in Caristo's £16.3M Series A. Longwall bridges Oxford pre-seed founders from concept stage to OSE and Parkwalk Series A.

Use Ellty to share your Oxford pitch with Longwall before any first meeting. They respond faster to founders with a clear, organised materials pack.

• Recent Deals: Caristo £16.3M Series A (with OSE and BGF); June 2026 Oxford Venture Tour participant; Oxford AI and healthtech seed mandate
• LinkedIn: Longwall Ventures LinkedIn
• Sector Focus: Oxford spinouts, AI, healthtech, deep tech
• Stage Focus: Seed to Series A
• Location: Oxford, UK
• Website: longwall.vc

8. Oxford Science Enterprises

Oxford Science Enterprises co-sponsors OION since March 2026, creating a formal pipeline from angel capital to institutional VC for Oxford founders. OSE backed Kneu Health's £4.2M seed in October 2025 and Oath Surgical's $24M Series A. They are the institutional VC counterpart to the Oxford angel ecosystem.

• Recent Deals: Kneu Health £4.2M seed co-lead (Oct 2025); Oath Surgical $24M Series A (Oct 2025); OION sponsorship (March 2026); 11 investments in 2025
• LinkedIn: Oxford Science Enterprises LinkedIn
• Sector Focus: All sectors, Oxford spinouts
• Stage Focus: Seed to growth (bridge from angel to VC)
• Location: Oxford, UK
• Website: oxfordscienceenterprises.com

9. Thames Valley Investment Network (TVIN)

Thames Valley Investment Network is part of the Oxford Innovation Finance group alongside OION and Oxford Early Investments. TVIN connects Thames Valley-based founders to a network of angel investors outside central Oxford. It focuses on tech and science companies based in the Oxfordshire, Berkshire, and Buckinghamshire corridor.

• Recent Deals: Active angel network events 2025-2026; Thames Valley tech and science portfolio; part of Oxford Innovation Finance group
• LinkedIn: Thames Valley Investment Network LinkedIn
• Sector Focus: Thames Valley tech and science, digital, manufacturing
• Stage Focus: Pre-seed to Series A
• Location: Thames Valley, UK
• Website: oxfordinnovationfinance.co.uk

10. Oxford Early Investments (OEI)

Oxford Early Investments is the third angel network in the Oxford Innovation Finance group. OEI focuses on the earliest-stage Oxford area companies - pre-revenue founders with an MVP and a credible market thesis. OEI co-invests with OION and TVIN on the same underlying platform.

Read the investment due diligence checklist before approaching OEI. Even early-stage angel investors run structured document reviews before committing capital.

• Recent Deals: Early Oxford area portfolio; part of Oxford Innovation Finance group; pre-revenue mandate
• LinkedIn: Oxford Early Investments LinkedIn
• Sector Focus: Early Oxford-area startups, all sectors
• Stage Focus: Pre-seed
• Location: Oxford, UK
• Website: oxfordinnovationfinance.co.uk

11. Oxford Entrepreneurs Network Angel Fund

The Oxford Entrepreneurs Network runs a student and graduate angel fund for Oxford University founders. It provides pre-seed capital to Oxford founders still at university or within two years of graduation. The fund is small in ticket size but gives founders an institutional reference before approaching OION or Oxford Capital.

• Recent Deals: Oxford University student and graduate founder mandate; pre-seed capital; active 2025-2026
• LinkedIn: Oxford Entrepreneurs Network LinkedIn
• Sector Focus: Oxford University founders, all sectors
• Stage Focus: Pre-seed
• Location: Oxford, UK
• Website: oxfordentrepreneurs.net

12. SFC Capital

SFC Capital is Europe's second most active seed investor and manages SEIS and EIS funds accessible to Oxford founders. They have invested in 580+ companies to date. SFC Capital provides a fast route to SEIS capital for Oxford founders who haven't yet connected with OION or Oxford Capital.

• Recent Deals: 580+ portfolio companies; Europe's 2nd most active seed investor; SEIS and EIS mandate; UK-wide
• LinkedIn: SFC Capital LinkedIn
• Sector Focus: UK-wide tech and science startups, SEIS/EIS
• Stage Focus: Pre-seed (SEIS) and seed (EIS)
• Location: London with UK-wide mandate
• Website: sfccapital.com

13. Cambridge Angels

Cambridge Angels is one of the UK's most active angel networks and co-invested in Wilder Sensing's funding round alongside OION. They back Golden Triangle companies - Oxford, Cambridge, and London. Oxford founders who have already pitched OION should also approach Cambridge Angels to expand their angel syndicate.

• Recent Deals: Wilder Sensing co-investment (with OION, 2024/25); Golden Triangle mandate; Oxford, Cambridge, London co-investments
• LinkedIn: Cambridge Angels LinkedIn
• Sector Focus: UK deep tech, science, Golden Triangle
• Stage Focus: Pre-seed to Series A
• Location: Cambridge with Oxford deal flow
• Website: cambridgeangels.com

How to get into an OION showcase

OION accepts direct applications via the Oxford Innovation Finance website. Showcase events run every 6-8 weeks and 8-10 companies pitch to a room of 100+ angels. Applications are reviewed within two weeks of submission.

The 2026/27 EIS Growth Fund is the parallel route. Oxford founders whose companies pass OION's due diligence are offered investment from the fund, not just introductions to individual angels. The minimum company size for the fund is £500K in expected annual revenue within 24 months.

Don't apply to OION without a clear cap table and SEIS/EIS eligibility confirmed. Angels need to know the tax relief is available before they'll commit. Check your SEIS/EIS advanced assurance before any network pitch.

How to verify an Oxford angel network is still active

Check the investor's showcase page for events in the last 60 days. OION runs monthly Showcase events - if the last one was more than 8 weeks ago, something has changed. Oxford Venture Angels events every 6-8 weeks in Oxford and London.

WOTAN holds monthly events on the first Thursday of each month at Oxford Technology Management's offices. If the website doesn't show an upcoming event within 30 days, call before applying.

Read about virtual data rooms for startups before approaching multiple Oxford angel networks simultaneously. Managing parallel applications to OION, WOTAN, and Oxford Capital requires organised document tracking.

How to find your first Oxford angel

Warm introductions still outperform cold applications at Oxford Venture Angels. If you don't have a contact in the network, start with OION or WOTAN. Both accept cold applications and both will introduce you to the wider Oxford angel ecosystem if your company qualifies.

Don't attend events without a two-minute pitch and a clear ask. Most Oxford angels hear 10-15 pitches per event. Your job is to get into a follow-up conversation, not to close a deal on the night.

Use Ellty to create a trackable link for your materials before any OION or WOTAN event. Share it in the room and see exactly which angels open your financials afterwards.