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Allegro Energy

Allegro Energy

Private
ThorntonEnergy & Sustainabilityhttps://www.allegro.energy/

Last Round

Grant

Feb 14, 2025

Est. Valuation

$52.8M

Total Funding Raised

$15.9M

Momentum

Top 25%

of companies Caplight tracks

Company Overview

Allegro Energy is a clean energy company that develops and manufactures sustainable, water-based redox flow battery and supercapacitor energy storage solutions.

Sector

Energy & Sustainability

Verticals

Energy Storage, Renewable Energy, Advanced Materials, Smart Grid

Business Model

B2B

Customer Profile

Hardware Sales, Services & Consulting

AI Layer

Non-AI

Keywords

long-duration energy storageLDESflow batterymicroemulsion flow batteryMeFBsupercapacitorgrid stabilizationnon-flammable batterywater-based electrolyterenewable energy storagegrid-scale storagealternative batteryoff-grid powerenergy storage hardwaresustainable battery

Historical Pricing

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Caplight Momentum Score

Proprietary index based on bid/ask volume and sentiment.

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Allegro Energy Comparables

Compare Allegro Energy with similar companies based on industry and business-model similarity.

Allegro Energy comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
HalioGen Power
84%
Quino Energy
84%
XL Batteries
84%

Allegro Energy Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
GrantFeb 14, 2025
Series ASep 9, 2024
StrategicJun 28, 2023
SeedDec 1, 2021

Key People

Founding team and executive leadership

Fraser Hughson

Co-Founder & CTO

Founding Team

Thomas Nann

Co-Founder & CEO

Founding Team

Allegro Energy Investors

Notable investors and investment history

Market signals

Structured signals derived from secondary market and firmographic data.

  • Jul 17, 2026

    Grew 19% QoQ, from 21 to 25 employees.

  • Jun 2, 2025

    Grew 16% QoQ, from 19 to 22 employees.

Recent news

Latest coverage and updates

  • receives_awardSep 17, 2026

    Allegro Energy Pty Ltd received award Best Start-Up Award at Australian Manufacturing Awards on Jul 1st '25.

Allegro Energy Filings

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Allegro Energy filings preview — column headings only; records require access
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Frequently Asked Questions

Common questions about Allegro Energy's valuation, stock price, and market status.

Is Allegro Energy a public or private company?

Allegro Energy is a private company.

What is the current stock price of Allegro Energy?

Allegro Energy is a private company with no public stock price. No recent secondary market data is available.

How much is Allegro Energy worth (valuation)?

Allegro Energy's valuation is estimated at $53.6M based on funding round data.

Can I buy Allegro Energy stock?

Allegro Energy shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors. Visit https://www.caplight.com to learn more.

When was Allegro Energy's last funding round?

Allegro Energy's most recent funding round was Grant on June 28, 2023.

Who are the main investors in Allegro Energy?

Key investors in Allegro Energy include The Grantham Foundation for the Protection of the Environment.

Will Allegro Energy IPO soon?

No public IPO plans have been announced for Allegro Energy.

How can I track Allegro Energy secondary market activity?

Caplight tracks bids, offers, and trades for private companies. Visit https://www.caplight.com to monitor Allegro Energy's secondary market activity and sign up for updates.

Firmographic Details

HeadquartersThornton
Employee Range22
Year Founded2021
Last FundingFeb 14, 2025

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