Introduction to eBay Marketplaces GmbH: What You Need to Know EBay Marketplaces GmbH is a subsidiary of eBay Inc. that operates as an online marketplace connecting buyers and sellers from around the world. Founded in 1995, eBay has grown into a global e-commerce powerhouse, with over 185 million active buyers and sellers as of 2021. EBay Marketplaces GmbH operates in ...