The startups we track
Venture-backed UK startups at Series A and beyond, with their funding and how many roles they have open today.
21 companies
| Company | Sector | Latest round | HQ | Open roles |
|---|---|---|---|---|
Fuse Energy Energy supply & renewable generation. Sponsors visas | Climate & Energy | Series B $30m, 2026-06 | London | 74 |
 tem Energy trading / transaction infrastructure. Sponsors visas | Climate & Energy | Series B $75m, 2026-02 | London | 19 |
 Axle Energy Grid flexibility / DER aggregation. Sponsors visas | Climate & Energy | Series A $25m, 2026-07 | London | 16 |
 Modo Energy Energy storage analytics / market data. Sponsors visas | Climate & Energy | Series B $30m, 2025-12 | London | 8 |
 Shellworks Biodegradable packaging materials. Sponsors visas | Climate & Energy | Series A $15M (£11.25M), 2026-03 | London | 8 |
 Gigaton Industrial decarbonisation software. Sponsors visas | Climate & Energy | Series A £19.3m, 2026-06 | London | 7 |
 Isometric Carbon removal / climate verification. Sponsors visas | Climate & Energy | Series A $50m, 2026-09 | London | 6 |
 Tokamak Energy Fusion energy / HTS magnets. Sponsors visas | Climate & Energy | Growth $125m, 2024-11 | Abingdon (Milton Park) | 5 |
 Tropic Agrifood biotech / gene-edited crops. Sponsors visas | Climate & Energy | Series C £78.6M, 2026-03 | Norwich | 4 |
 Greyparrot AI waste analytics | Climate & Energy | Series B $27m, 2026-07 | London | 3 |
 Nyobolt Fast-charging batteries. Sponsors visas | Climate & Energy | Series C £44m ($60m), 2026-05 | Cambridge | 2 |
 44.01 Carbon removal / CO2 mineralisation | Climate & Energy | Series A $37m, 2024-07 | London | 0 |
 Certain Energy Long-duration energy storage | Climate & Energy | Series A £10m, 2026-09 | London | not tracked |
 Cocoon Carbon Low-carbon cement materials. Sponsors visas | Climate & Energy | Series A £11M, 2026-03 | London | not tracked |
Concretene Graphene additive for low-carbon concrete | Climate & Energy | Series A £4.5m (first close), 2026-10 | Manchester | not tracked |
 HydRegen Biocatalytic hydrogenation / green chemistry | Climate & Energy | Series A £6m (first close), 2026-10 | Oxford | not tracked |
 i6 Group Aviation fuel management software | Climate & Energy | Series B £15.1M ($20M), 2025-10 | Hampshire | 0 |
 Immaterial Advanced materials (monolithic MOFs) for carbon capture / decarbonisation. Sponsors visas | Climate & Energy | Series A £13.5M (Series A2), 2025-10 | Cambridge | not tracked |
 Moa Technology Agritech / herbicide discovery. Sponsors visas | Climate & Energy | Series C £22.2m, 2026-07 | Oxford | not tracked |
 Mondra Food supply chain carbon / sustainability data. Sponsors visas | Climate & Energy | Series A £10M, 2025-10 | London | not tracked |
 Reclinker Low-carbon cement / construction materials | Climate & Energy | Series A £10m, 2026-10 | Cambridge | not tracked |