SiteGround is a web hosting provider offering shared hosting, cloud hosting and hosting tuned for WordPress and WooCommerce, together with email and domain registration. It targets website owners, agencies and online shops and is delivered as a managed service, with an in-house control panel called Site Tools. When you set up hosting, you choose the data center where your account will live.
SiteGround Hosting Ltd is a privately held company headquartered in Sofia, Bulgaria, and is therefore subject to EU law. Its infrastructure runs on Google Cloud, with data centers across North America, Europe, Asia and Australia. European locations include the Netherlands, Germany, the United Kingdom, France and Spain. If you pick a European data center, your site data stays in Europe. Bear in mind, however, that the underlying cloud infrastructure is supplied by Google, a US company. SiteGround's platform is not open source.