Eurosense is a European provider of aerial surveying, remote sensing and geodata, founded in 1964 by Emile Maes. It delivers high-resolution photogrammetric imagery, true orthophotos, aerial LiDAR, 3D models, aerial thermography, change detection, tree inventory and tree-health analysis, and GIS consultancy. Customers are public bodies and companies, including in architecture, construction, engineering, telecommunications, utilities and solar. It is a service and data-delivery business rather than software you install yourself.
Eurosense's head office is in Wemmel, Belgium. Its website lists offices in Belgium, Hungary, Bulgaria and Poland, and the company expanded over time into countries including the Netherlands, Germany, France, Slovakia, the Czech Republic and Romania. As a Belgian provider it operates under European law. The services are not open source. For a given assignment, ask where source imagery and derived data are stored and processed.