Who invested in Allegro Energy

3 rounds we have observed, with the 2 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

CleantechClimate TechEnergy

Funding summaryUpdated 26 Oct 2026

$3.5Mraised across 3 rounds since 2025, from 3 sources

$1.2MGrant$1.1MGrant$1.2MGrant

Latest round: Grant, $1.2MJul 2025
Investors: 2

See who backed them

The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

2026

$1.2MGrant$1.1MGrant$1.2MGrant

First round: Grant, $1.2M
Biggest round: $1.2M
Usual gap between rounds: 3 months

The rounds

Jul 2025
Grant$1.2M2 new
- Lightbank
- Third Derivative
Source recorded
Apr 2025
Grant$1.1M
No investor was named in the report.
Reported by Startup Daily
Feb 2025
Grant$1.2M
No investor was named in the report.
Reported by Startup Daily

Founders and team

From Allegro Energy's own website: 3 founders, 1 on the team.

Thomas NannChief Executive Officer & Co-Founder

Fraser HughsonChief Technology Officer & Co-Founder

Rohan BorahChief Scientific Officer & Co-Founder

James GooganHead of Business Development

Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

Grant2025Grant2025Grant2025

Lightbank

Third Derivative

Everyone who backed them

LightbankVC firm1round

Third DerivativeAccelerator1round

Missing a round, or an investor who was in one? Tell us.

Also claim to have backed them

These 3 firms list Allegro Energy as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.