Investor directory
A directory of investors and angel networks active in UK SEIS and EIS. Filter by stage, sector, geography, and cheque size to find a fit, then visit a firm directly.
Every detail below is as publicly stated by each firm (their own website and public materials), not verified or endorsed by Seisly, and not a recommendation. A listing is not a claim that a firm invests via SEIS or EIS in any given case. Firms can request a correction or removal.
Stage
Geography
Cheque size
Sector
82 of 82 firms
Angel network · London; UK · Not stated · Seed
Public entrepreneur criteria now point to later-stage/high-growth opportunities rather than a SEIS-first founder route; do not present its larger institutional range as a SEIS cheq…
VC · Global; UK · Not stated · Seed
Global VC active from seed onward, but no UK SEIS/EIS-stage entry-cheque source was verified for this directory.
VC · UK · £200k–£1m · Seed
Consumer-focused investor with a separate early-stage strategy; official approach page says it invests £200k-£1m into mission-driven brands.
VC · UK · £250k–£1m · Pre-seed
Inclusive pre-seed VC backing UK-linked/Northern European founders before clear product-market-fit signals; official site says £250k-£1m in a first funding round.
Angel syndicate · UK · £1.5m–£1.5m · Seed
Angel syndicate backing UK startups, with third-party coverage describing a SEIS/EIS focus and around £1.5m investments at seed and Series A.
VC · UK · Not stated · Seed
Institutional VC backing software, healthcare and deeptech from seed through later rounds; no SEIS-sized first-cheque data found in public sources checked.
VC · UK; global · Not stated · Seed
Deeptech VC investing from seed to growth across AI/advanced computing/quantum, health/wellness and sustainability/space; public cheque size for SEIS-stage not found.
Angel network · UK · £100k–£500k · Seed
Angel network backing technology startups with at least one woman founder/leader; recent coverage confirms an EIS fund and early-stage female-founder focus.
VC · UK; global · Not stated · Seed
Fintech specialist with early-stage seed/Series A activity in financial services; no UK SEIS-sized entry cheque was verified.
VC · UK · £210k–£210k · Pre-seed
Programme-based inception/pre-seed investor for UK founders; official UK page and 2025 announcement state £210k at inception with pre-committed follow-on funding.
VC · UK · Not stated · Pre-seed
London pre-seed and seed investor backing impact-driven technology across SaaS, fintech, health, media and deeptech; public cheque range varies, so cheque left blank.
VC · UK · $500k–$5m · Seed
Early-stage VC backing frontier-tech founders at pre-seed and seed; recent fund coverage cites $500k-$5m checks.
VC · UK; Europe · Not stated · Seed
Large European technology VC active at seed and Series A, but no SEIS-sized public entry cheque was verified; founders should treat it as institutional seed/A, not SEIS directory c…
SEIS/EIS fund · UK · £60k–£60k · Pre-seed
Tech-for-good programme investor; official application page states £60,000 upfront investment into 10-15 companies twice a year.
SEIS/EIS fund · UK · Not stated · Seed
EIS portfolios investing in early-stage technology businesses; public source checked did not provide an entry cheque size.
SEIS/EIS fund · UK · Not stated · Pre-seed
British Robotics Seed Fund/Britbots backs UK robotics, AI and automation startups; public sources show seed-stage robotics investments but no current cheque range.
SEIS/EIS fund · UK · £190k–£190k · Seed
(S)EIS fund/angel network backing early-stage UK product-focused businesses; recent public deal showed a £190k investment into SmartyPlants.
SEIS/EIS fund · UK · Not stated · Seed
EIS/VCT manager focused on growth-potential businesses; public profiles describe £1m-£3m at pre-Series A to Series B, so not a SEIS-entry cheque source.
Angel network · Cambridge; UK · £150k–£1.5m · Seed
Cambridge angel network providing smart capital from entrepreneurs to entrepreneurs and backing science, engineering and healthcare startups; cheque range from recent directory cov…
VC · UK · Not stated · Seed
Cambridge-focused deeptech/life-sciences investor; public material points to institutional university/spin-out funding, with no SEIS-sized cheque verified.
VC · UK · £120k–£120k · Pre-seed
Climate venture builder/investor; Venture Launchpad source states teams pitch for £120k pre-seed funding at the end of Phase 1.
SEIS/EIS fund · UK · Not stated · Early (A)
Public sources describe larger EIS/growth-style commitments, including typically around £3m per company; not suitable to present as SEIS first-cheque activity.
VC · UK · up to $1.5m · Pre-seed
Dedicated European pre-seed fund, sector-agnostic and often first VC investor; recent coverage says Fund II writes cheques up to $1.5m at pre-seed.
VC · UK; Europe · $500k–$5m · Seed
Product-led pre-seed/seed/Series A VC; SeedLegals describes leading or co-leading rounds between $500k and $5m.
Angel network · London; UK · Not stated · Seed
VC · UK; Europe · Not stated · Pre-seed
Early-stage enterprise/software/deeptech investor; recent public update shows Crane leading a $2.9m pre-seed round, but no standard cheque range verified.
SEIS/EIS fund · UK · Not stated · Seed
SEIS/EIS manager across technology, life sciences and renewables; no public founder-level entry cheque verified in this pass.
VC · UK · Not stated · Seed
VC · UK · Not stated · Seed
Seed-stage investor in health, wellbeing, sustainability and consumer; no SEIS-stage entry cheque verified.
Angel network · UK · £150k–£5m · Seed
Angel investment network/fundraising platform; recent directory coverage lists seed-to-Series A activity and £150k-£5m range, so treat as round/network capacity rather than one inv…
VC · UK · £250k–£2m · Pre-seed
B2B software seed fund; official FAQ says it invests £250k-£2m, targeting 10-20% for lead cheques and 5-10% as follower.
VC · UK; global · Not stated · Seed
Early-stage European VC positioning itself as the first institutional cheque into European founders; no public SEIS-sized cheque verified.
VC · UK; Europe · Not stated · Seed
Seed fund investing in B2B technology innovation with focus on fintech, AI, SaaS and deeptech; no public entry cheque size verified.
SEIS/EIS fund · UK · Not stated · Seed
Regional SME and infrastructure/energy investment manager; no SEIS-sized direct first-cheque verified for founders.
VC · UK; Europe; US · Not stated · Seed
B2B software investor active at early stage; no SEIS/EIS-stage cheque verified in this pass.
Angel network · London; Midlands; South East; Cornwall; East of England; Yorkshire and Humber · Not stated · Seed
VC · UK · Not stated · Pre-seed
Seed/growth investor in marketplaces, SaaS and platforms; public SEIS-stage cheque not verified in this pass.
SEIS/EIS fund · UK · £300k–£800k · Pre-seed
Operator-led SEIS fund writing first cheques into pre-seed B2B SaaS teams from inception; third-party SEIS guide cites £300k-£800k at SEIS.
VC · UK · Not stated · Seed
Early-stage technology VC whose public range can extend to multi-million-dollar seed rounds; not a SEIS-sized cheque source.
VC · UK; Ireland · Not stated · Growth/Later
VC · UK; Europe; US · Not stated · Seed
Large global venture firm active from seed to growth; no UK SEIS/EIS-stage entry cheque verified for this directory.
VC · UK · Not stated · Seed
Deeptech investor backing AI, quantum, life sciences, fintech and space; public range extends far beyond SEIS, so cheque left blank.
VC · UK · Not stated · Seed
Consumer investor backing food, drink, consumer technology and brand-led companies; no SEIS-stage cheque verified.
SEIS/EIS fund · UK · Not stated · Seed
Long-running SEIS/EIS fund manager focused on UK early-stage startups; official materials describe SEIS as the initial investment route for new and innovative startups.
VC · UK · Not stated · Seed
Seed investor with equitable-venture model; no SEIS-stage cheque verified.
VC · London; UK · Not stated · Seed
Phoenix Court/LocalGlobe backs UK and European technology companies from pre-seed/seed; no current SEIS-sized entry cheque verified.
SEIS/EIS fund · UK · Not stated · Seed
Regional private equity/venture investor; no SEIS-sized first-cheque activity verified for this founder directory.
Fund manager · UK · Not stated · Seed
VC · UK · Not stated · Pre-seed
Research-led UK technology investor at seed/Series A; no SEIS-sized entry cheque verified.
VC · UK; Europe · Not stated · Pre-seed
Seed-stage data-driven European VC; no SEIS-stage cheque verified.
VC · London; UK · Not stated · Seed
Impact investor whose public range starts around £300k and can extend to multi-million-pound EIS rounds; not a sub-£250k SEIS source.
VC · Europe · Not stated · Seed
B2B software investor focused on seed/Series A; no SEIS-stage cheque verified.
Angel network · UK · Not stated · Seed
EIS/venture investor for technology and growth SMEs; no SEIS-stage cheque verified.
VC · UK · Not stated · Seed
Northern university spin-out/deeptech investor; no SEIS-sized founder entry cheque verified.
Angel network · North of England · Not stated · Pre-seed
Northern angel/investor network for tech, digital and medtech startups; no standard cheque verified.
VC · UK; Europe; US · Not stated · Seed
Multi-stage European VC; public sources describe seed through growth with €1m-€40m cheques, so not suitable as a SEIS-entry cheque source.
VC · Europe · Not stated · Growth/Later
Enterprise software/SaaS investor typically writing institutional Series A/early-growth cheques, not SEIS-sized first-cheques.
VC · UK · Not stated · Seed
Specialist SEIS/EIS biotech investor; official SEIS page says the Human Health SEIS Fund invests in UK early-stage biotech, drug discovery and AI technologies.
VC · UK · Not stated · Seed
Large multi-stage VC across healthcare, fintech, deeptech and consumer; no SEIS-sized entry cheque verified for this directory.
VC · UK; Europe · Not stated · Seed
Fintech and adjacent verticals investor; no SEIS-stage cheque verified.
VC · UK · Not stated · Seed
EIS/venture investor in digital health, fintech and future of work; no founder-level SEIS cheque verified.
SEIS/EIS fund · UK · up to £150k · Pre-seed
SEIS/EIS fund investing in UK science and technology startups; third-party SEIS fund guide says it typically invests up to £150k into SEIS companies.
VC · UK · Not stated · Seed
SEIS/EIS fund · UK · Not stated · Seed
University spin-out and knowledge-intensive EIS investor; no SEIS-sized direct founder cheque verified.
VC · UK · Not stated · Seed
Early-stage software/digital investor; no SEIS-stage cheque verified.
VC · UK; Europe · Not stated · Pre-seed
Proptech/built-environment VC; no SEIS-stage cheque verified.
VC · UK; Europe · £100k–£1.5m · Seed
Pre-seed-focused London VC; public early-stage investor guides describe £100k-£1.5m pre-seed cheques and co-investment with angels/funds.
VC · UK · Not stated · Seed
Northern UK technology investor; no SEIS-stage cheque verified.
Angel network · UK; Europe · Not stated · Seed
Investment club/network investing in early-stage technology, consumer and fintech companies; no current SEIS-stage cheque verified.
Fund manager · UK · Not stated · Pre-seed
SEIS/EIS fund platform and manager backing specialist early-stage VC funds rather than a single direct-investment thesis; cheque size depends on underlying fund.
VC · Europe; UK · $350k–$1.25m · Pre-seed
European seed fund and first backer; official FAQ says first cheques are $350k-$1.25m and it leads or co-leads early rounds.
SEIS/EIS fund · UK · £100k–£300k · Pre-seed
UK SEIS fund; official founder page says it leads early funding rounds and invests £100k-£300k for 10%-20% ownership on average.
VC · Europe · Not stated · Growth/Later
Pan-European multi-sector VC; public ranges are institutional and not SEIS-entry sized.
VC · UK; Europe · Not stated · Seed
B2B and applied-AI seed investor; no SEIS-stage cheque verified.
VC · UK · Not stated · Seed
Climate-tech investor with SEIS/EIS Impact Funds; official investment page calls it the UK’s most active early-stage climate-tech fund.
VC · UK · Not stated · Pre-seed
SEIS/EIS technology investor with B2B focus; no current founder cheque range verified.
VC · UK; Europe · Not stated · Early (A)
Climate/systems-change investor; no SEIS-sized entry cheque verified.
VC · UK · Not stated · Pre-seed
Accelerator-style investor; published programme terms are typically around $220k globally, but UK-specific current terms were not verified here.
SEIS/EIS fund · UK · Not stated · Seed
Venture/EIS manager; no SEIS-stage founder cheque verified.
Angel network · London; UK · £50k–£250k · Pre-seed
Angel community enabling members to write smaller cheques into pre-seed startups; official FAQ says outcomes depend on member appetite and gives an example of £50k from smaller che…
VC · UK · Not stated · Pre-seed
Telefónica-linked accelerator/investor for enterprise/telco-adjacent startups; no current SEIS-style cash cheque verified.