EspoCRM is a web-based CRM system for managing leads, contacts, sales opportunities, campaigns and support cases. It offers BPMN 2.0 process modelling, workflows, calendar and email, quotes and invoices, a customer portal and a knowledge base, and can be extended through a REST API and extensions. You can self-host EspoCRM for free (by script, manually or with Docker) or use it as EspoCRM Cloud. The software is open source under AGPLv3 and written in PHP.
EspoCRM operates through EspoCRM, Inc., a US entity incorporated in Delaware and operating from Texas. That is a CLOUD Act signal even when data is held in Europe. EspoCRM Cloud offers server locations in the United States and Germany; the German location is intended for those who need to keep data in the EU. The subprocessor list names hosting providers such as OVHcloud, Hetzner and 20i, with storage in locations including the EU and the US. Anyone who self-hosts decides entirely where the data is kept.