A Kommanditgesellschaft auf Aktien (KGaA) is a hybrid German legal form combining a stock corporation (AG) with a limited partnership. The general partner (Komplementär) has unlimited liability and full management control; the limited partners hold listed shares and bear no day-to-day management role. The structure is rare but powerful: families and founders use it to take a company public (e.g. Henkel KGaA, Merck KGaA) while keeping operational control irrevocably with the general partner.
For venture-backed founders the KGaA is mostly relevant at the IPO stage when a strong-willed founder wants to list while preventing institutional shareholders from voting them out, a structure that requires bespoke legal work and is not the right answer for early-stage rounds.