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Run by: HSBC UK·Backed by: HSBC
None (no cash) — no equity
High-growth startups at seed to Series A, particularly in fintech, regtech, or sustainability tech. Must benefit from HSBC's commercial banking network.
Quarterly events & insights for HSBC Innovation Banking early-stage clients; invitation-based
Run by: Zinc VC·Backed by: British Business Bank (BBB) £28M
Varies (venture builder model) for ~15%
Mission-driven individuals passionate about solving major social challenges in health, education, or sustainability. No existing company needed — Zinc helps you build one.
12-month Venture Builder; programme starts Oct-Nov or Apr-May; up to £250k initial investment
Run by: Barclays / Sustainable Ventures·Backed by: Barclays
None (no cash) — no equity
Climate and sustainability startups with scalable technology. Focus on net-zero solutions: energy, transport, built environment, agriculture, or circular economy.
National Climate Tech Accelerator (Barclays Eagle Labs + Sustainable Ventures)
Run by: Carbon13
€150K-€250K for 4-7%
Climate tech founders with deep technical or domain expertise. Must be committed to building ventures that can reduce greenhouse gas emissions by at least 100 MtCO₂e/year.
Rolling applications; next cohort starts 4 May 2026; 7-week sprint + 12-month growth; €150-250k pre-seed for ~1% via SAFE
Run by: Carbon13
£120K for ~10%
Individuals with relevant expertise to build climate ventures from scratch. Scientists, engineers, and operators passionate about decarbonisation.
8-month co-founder-matching programme; next cohort end April 2026; £150k pre-seed
Run by: Tramshed Tech·Backed by: Barclays Eagle Labs
Free — no equity
Green technology and sustainability startups in Wales. Renewable energy, circular economy, sustainable agriculture, or environmental tech.
12-week accelerator for environmentally focused startups; applications currently closed