Skip to main content
Caplight Logo









Algaesys

Algaesys

Private
AlcocheteEnergy & Sustainabilityhttps://www.algaesys.earth/

Last Round

Grant

May 16, 2025

Total Funding Raised

$2.07M

Company Overview

Algaesys is an environmental services company that provides innovative, high-rate phototrophic biofilm reactor technology for sustainable wastewater treatment and resource recovery.

Sector

Energy & Sustainability

Verticals

Water Treatment, Carbon Capture, Circular Economy, Waste Management

Business Model

B2B

Customer Profile

Services & Consulting, Hardware Sales, Revenue Share

AI Layer

Non-AI

Keywords

wastewater treatmentbioreactorresource recoveryalgae-based treatmentnature-based solutionsdecentralized water treatmentcarbon-negative technologyphototrophic biofilmwater reusegreen techbuild-own-operateBOOcircular economyoff-grid watercleantech

Historical Pricing

Historical view of private secondary pricing and transaction trends.

Unlock Pricing Charts

Sign up to view complete historical pricing and secondary transactions.

Caplight Momentum Score

Proprietary index based on bid/ask volume and sentiment.

View Momentum History

Track how buyer interest and sentiment changes over time.

Algaesys Comparables

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

Algaesys comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
AlgaFilm Technologies
86%
OneWater Inc.
85%
Gross-Wen Technologies
83%

Algaesys Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
GrantMay 16, 2025

Key People

Founding team and executive leadership

John Fagan

CEO Algaesys S.A.

Executive Team

Mahshid Sedghi

Director, Chief Operating Officer, Research and Development Director at ALGAESYS S.A.

Executive Team

Algaesys Investors

Notable investors and investment history

Market signals

Structured signals derived from secondary market and firmographic data.

  • Apr 7, 2026

    Monthly visitors grew 556% MoM.

  • Jan 21, 2026

    Monthly visitors increased 1337% MoM.

Algaesys Filings

Explore SEC and related filing metadata, where available.

Algaesys filings preview — column headings only; records require access
TypeDateAmount OfferedAmount SoldFilingPagesDownload

Filing documents are not displayed on this public page. Request access to learn about available coverage.

Request access

Frequently Asked Questions

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

Is Algaesys a public or private company?

Algaesys is a private company.

What is the current stock price of Algaesys?

Algaesys is a private company with no public stock price. Caplight tracks Algaesys's secondary market activity and provides MarketPrice™ estimates to Caplight users.

How much is Algaesys worth (valuation)?

Valuation information for Algaesys is not publicly available.

Can I buy Algaesys stock?

Algaesys 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 Algaesys's last funding round?

Algaesys's most recent funding round was Grant on May 16, 2025.

Who are the main investors in Algaesys?

Key investors in Algaesys include Calouste Gulbenkian Foundation, Bluebio Alliance, Oceano Azul Foundation, City of Fremantle, Plus Eight Accelerator.

Will Algaesys IPO soon?

No public IPO plans have been announced for Algaesys.

How can I track Algaesys secondary market activity?

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

Firmographic Details

HeadquartersAlcochete
Employee Range9
Year FoundedN/A
Last FundingMay 16, 2025

Institutional Data Access

Join leading institutional investors using Caplight to access private market data, discover pricing, and execute secondary block trades.

Requires verified institutional or accredited status.

See something wrong or outdated?