# SolarSub funding rounds and investors

As of 8 Nov 2026, SolarSub has raised $1.8M across 1 verified round on record (amounts in other currencies converted to USD); latest: £1.34 million seed round led by Sustainable Ventures, announced 23 Sep 2026.

A cooling system that boosts solar panel efficiency by up to 20%

Website: https://www.solarsub.co.uk/  
Headquarters: Edinburgh, United Kingdom  
Page: https://fireround.dev/companies/solarsub

## Verified rounds

| Announced | Round | Amount | Lead investors | Other investors | Sources |
| --- | --- | --- | --- | --- | --- |
| 2026-09-23 | Seed | £1.34 million | Sustainable Ventures | British Business Bank, Innovate UK's Investor Partnership programme, Old College Capital, Scottish Enterprise, SFC Capital, Zinc | [solarsub.co.uk](https://www.solarsub.co.uk/news/solarsub-raises-1-34-million), [businesscloud.co.uk](https://businesscloud.co.uk/live-blog/solarsubs-1-3m-funding-to-advance-passive-solar-cooling-tech), [edinburgh-innovations.ed.ac.uk](https://edinburgh-innovations.ed.ac.uk/news/student-startup-solarsub-raises-1-3m-for-solar-panel-technology) |

Source: Fireround (https://fireround.dev), an open-source funding feed. Each round is checked against the pages listed with it.