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Gross-Wen Technologies

Gross-Wen Technologies

Private
Slater, IowaEnergy & Sustainabilityhttps://algae.com/

Last Round

Series B

Mar 26, 2026

Total Funding Raised

$22.63M

Momentum

Top 25%

of companies Caplight tracks

Company Overview

Gross-Wen Technologies is a clean technology company that provides a sustainable, algae-based wastewater treatment solution using its patented Revolving Algal Biofilm (RAB™) system.

Sector

Energy & Sustainability

Verticals

Water Treatment, Environmental Monitoring, Circular Economy

Business Model

B2B

Customer Profile

Hardware Sales, Services & Consulting

AI Layer

Non-AI

Keywords

wastewater treatmentalgae-based treatmentnutrient removalrevolving algal biofilmRAB systemresource recoverywater infrastructurebioremediationindustrial wastewatermunicipal water treatmentcircular economycleantechgreen techwater quality compliance

Historical Pricing

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Caplight Momentum Score

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Gross-Wen Technologies Comparables

Compare Gross-Wen Technologies with similar companies based on industry and business-model similarity.

Gross-Wen Technologies comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
Algaesys
80%
Industrial Phycology
79%
CLEARAS Water Recovery
78%

Gross-Wen Technologies Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
Series BMar 26, 2026
DebtFeb 20, 2026
Series BJun 3, 2022
Series AAug 20, 2021
GrantJan 21, 2021
Grant
Jul 17, 2020

Key People

Founding team and executive leadership

Max Gangestad

Chief Operating Officer Co-Founder

Founding Team

Martin Gross

Chief Executive Officer

Executive Team

Gross-Wen Technologies Investors

Notable investors and investment history

Gross-Wen Technologies investors
InvestorRounds
Ag Startup EngineSeries A
Ankeny AngelsSeries A
ISA VenturesSeries A
Iowa Farm Bureau FederationSeries A
Iowa State University Startup FactoryAccelerator
AiiM PartnersSeries B
Doerfer CompaniesAngel

Market signals

Structured signals derived from secondary market and firmographic data.

  • Apr 18, 2026

    Monthly visitors increased 54% MoM.

  • Mar 26, 2026

    $20M round completed.

Gross-Wen Technologies Filings

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Gross-Wen Technologies filings preview — column headings only; records require access
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Frequently Asked Questions

Common questions about Gross-Wen Technologies's valuation, stock price, and market status.

Is Gross-Wen Technologies a public or private company?

Gross-Wen Technologies is a private company.

What is the current stock price of Gross-Wen Technologies?

Gross-Wen Technologies is a private company with no public stock price. No recent secondary market data is available.

How much is Gross-Wen Technologies worth (valuation)?

Valuation information for Gross-Wen Technologies is not publicly available.

Can I buy Gross-Wen Technologies stock?

Gross-Wen Technologies 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 Gross-Wen Technologies's last funding round?

Gross-Wen Technologies's most recent funding round was Series B on June 3, 2022.

Who are the main investors in Gross-Wen Technologies?

Key investors in Gross-Wen Technologies include ISA Ventures, Iowa Farm Bureau Federation.

Will Gross-Wen Technologies IPO soon?

No public IPO plans have been announced for Gross-Wen Technologies.

How can I track Gross-Wen Technologies secondary market activity?

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

Firmographic Details

HeadquartersSlater, Iowa
Employee Range20
Year Founded2014
Last FundingMar 26, 2026

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