How does participation in GrOwnValve work?

Your participation in GrOwnValve is structured as an equity investment. You become a shareholder in GrOwnValve - similar to investing on the stock market, but in the pre-IPO phase. No subordinated loans, no reward-based crowdfunding campaigns, no pre-orders. In the event of success, you participate proportionally in the exit (company sale or IPO) or via dividend distributions. Example: Companisten who invested in BigRep participated in its listing on the Frankfurt Stock Exchange on July 31, 2024 (ticker B1GR). The minimum investment in GrOwnValve is €10,000 in the Business Angel Club (for direct investments in the form of shares or GmbH equity interests) or €250 for private investors via a pooling vehicle. Each investment offering includes a legally required Securities Information Sheet (WIB), Key Information Document (BIB), or consumer information with mandatory risk disclosures.

What is the minimum investment in GrOwnValve?

The minimum investment in GrOwnValve is €10,000 in the Companisto Angel Club for a direct investment (limited liability company shares or stock) or €250 for private investors via a pooling vehicle. There is no maximum investment amount per investment.

When do I receive a return from GrOwnValve?

A return from your GrOwnValve investment arises at exit (trade sale or IPO) or through dividend distributions - as a shareholder you participate directly in the company’s value. The timing of an exit is not guaranteed; typical holding periods for startup investments range between 5 and 10 years. Examples from the Companisto portfolio: BigRep - listing on the Frankfurt Stock Exchange on July 31, 2024 (ticker B1GR). HERO - €40 million Series B in 2024 with Eight Roads and Federated Hermes. DiaMonTech - €8 million co-investment with Samsung Next in 2025 (largest EU equity crowdfunding round 2025). KoRo 6x return for Companisten upon sale in 2022. Through the Companisto secondary market, you can sell your GrOwnValve shares to other Companisto investors before exit. Total loss of capital is possible.

Where can I find the Investment Information Sheet (Vermögensanlagen-Informationsblatt, VIB)?

The Securities Information Sheet (WIB) or Key Information Document (BIB) for GrOwnValve can be found directly on this investment detail page as a link at the bottom of the page (below “Latest Companisten”). A central overview of all WIBs is available at companisto.com/wib and BIBs at companisto.com/bib. The information sheets contain the legally required risk disclosures and must be read in full before making any investment.

Where can I find the Securities Information Sheet (WIB) or the Key Information Document (KID)?

The Securities Information Sheet (WIB) or Key Information Document (BIB) for GrOwnValve can be found directly on this investment detail page as a link at the bottom of the page (below “Latest Companisten”). A central overview of all WIBs is available at companisto.com/wib and BIBs at companisto.com/bib. The information sheets contain the legally required risk disclosures and must be read in full before making any investment.

Invest in startups from as little as € 250 with the new minimum investment amount.

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Funding Round Closed

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Invest in GROWNVALVE

Lifelong cure for heart valve defects. EU funded medtech startup devel-ops growing implants made from the patient’s own tissue.

€ 3,005,853

Invested

611

Investors

Funding Goal

€ 3,100,000

Minimum investment

€ 250

Company Valuation

€ 18,000,000

Mediator

Companisto Wertpapier GmbH

Co-Investors

Co-investoren & Förderungen

FINANCED

€ 3,005,853

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Please note

The acquisition of the offered securities and investments is associated with considerable risks and can lead to the complete loss of the invested assets. The expected yield is not guaranteed and may be lower. Whether it is a security or an asset investment can be seen in the description of the investment opportunity.

If you have any questions about investing on Companisto, please contact our service team:

Toll-free phone number for investors calling from Germany:
0800 - 100 267 0

Companisto investors hotline:
+49(0)30 - 346 491 493

We are available Monday through Friday between 9 a.m. – 5 p.m.

For investors

Why invest? FAQ for Investors Angel Club Investments Information Sheets Securities Information Sheets Key Information Documents

Companisto

About us Media Info Career Netiquette Payment Details Partner Program ECCL Study 2025

For investors

Why invest? FAQ for Investors Angel Club Investments Information Sheets Securities Information Sheets Key Information Documents

Companisto

About us Media Info Career Netiquette Payment Details Partner Program ECCL Study 2025

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Or scan the QR code with your phone camera

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