AG (Aktiengesellschaft) (AG)

TL;DR

German stock-corporation form (€50k min capital, two-tier board) used for IPOs and large companies but considered too rigid for venture rounds.

The Aktiengesellschaft (AG) is Germany's stock-corporation form, mandatory for public listings on Deutsche Börse and standard for very large privately held companies. It requires €50,000 minimum share capital, a two-tier board structure (a management Vorstand and a supervisory Aufsichtsrat), and a much heavier governance overhead than a GmbH.

For venture-backed startups, the AG is a wrong-fit structure for early rounds — every share movement must still go through a notary, the Aufsichtsrat governance adds rigidity, and most German VCs are set up to invest in GmbHs. Companies typically convert from a GmbH to an AG only as part of an IPO process or pre-listing reorganisation.

Worked example

A German fintech with €120m ARR converts from a GmbH to an AG twelve months before its planned Frankfurt IPO. The conversion triggers €50k share-capital top-up, formation of a five-person Aufsichtsrat, and adoption of IFRS reporting — all standard pre-IPO moves but cost ~€500k in legal and audit fees.

Common pitfalls

• Converting from a GmbH to an AG too early and saddling the company with a two-tier board.
• Underestimating the supervisory-board reporting and codetermination obligations once the AG hits employee-count thresholds.
• Treating an AG as 'easier to take public' without budgeting the prospectus and listing costs.

When this shows up in a pitch deck

Almost never in a Series A/B deck; appears in IPO readiness presentations for late-stage German tech companies.

Related terms

• GmbH — Standard German limited-liability company: ≥€25k share capital (half paid in at incorporation), notarised formation. Default for German VC startups.
• KGaA — German hybrid 'partnership limited by shares' used by founder-led companies seeking a public listing while keeping a general partner in firm control.
• IPO — Initial Public Offering — the first sale of a company's shares to public investors, transforming the company from private to publicly traded.
• Board Seat — A formal director position on the company's board of directors, typically granted to a lead investor in a priced round.
• Fully Diluted Shares — The total share count assuming every option, warrant, convertible note, SAFE, and reserved pool has been exercised or converted.

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