Allegro is a Polish online marketplace founded in 1999 in Poznań. Sellers list offers on the platform, and buyers in Poland purchase from them through an online service. It is a consumer-facing marketplace that supports both private and business sellers. The company was founded in Poznań, where it remains headquartered.
The listed parent, Allegro.eu S.A., is headquartered in Poznań and has been listed on the Warsaw Stock Exchange since 2020. The published shareholder register shows no majority shareholder: the largest holding is below ten percent, and most shares trade freely. With its headquarters in Poland, the service falls under EU law, and the absence of a majority shareholder means there is no single controlling owner to assess. The sources used here do not describe where customer data is stored.