Oteis

Oteis is an independent French engineering and consulting group involved in construction, infrastructure, water, environmental development, and other industrial projects. The company provides a range of consulting and project management services for public- and private-sector clients and has expanded through acquisitions and team integrations, developing a network of more than 30 offices across France and parts of Europe. In 2025, the group expanded its sustainability and decarbonization capabilities through the acquisition of GreenFlex, adding expertise in environmental consulting, energy performance, transition financing, and digital sustainability management tools.