Didier Rétali

GTI NV operates as a holding company with interest in providing engineering services. The firm focuses on technical services, industrial firms and infrastructure projects. The company develops integral solutions from design, maintenance, and management. It serves clients through a network of branches, collaborations, and alliances. The company is headquartered in Zaltbommel, the Netherlands.

ENGIE Services Nederland NV engages in the provision of energy and service solutions. It offers consultancy, project management, engineering, production, pre fabrication, montage and installation, maintenance, support, exploitation, integrated facility management, inspection, validation, and certification services. The company is headquartered in Bunnik, the Netherlands.

Cofely Services provides technical management solutions. It offers asset efficiency, energy audits, equipment installations, performance monitoring, and heating networks. The company is headquartered in Brussels, Belgium.

Part of ENGIE SA, Engie Energy Services International SA is a Belgian company that operates renewable energy and gas plants. The company is based in Brussels, Belgium. Founded in 1946.

Fabricom SA/NV provides waste management and facilities development services. The firm provides services to the electrical, mechanical, HVAC, and cooling installation and maintenance fields. The company designs, builds and maintains installations for European clients. Fabricom was founded in 1946 and is headquartered in Brussels, Belgium.

INEO Energy & System SA provides electrical installation services. It works on projects relating to industrial and commercial electrical installations, power networks, public lighting, transport, and telecommunications infrastructure. The company was founded in 1891 and is headquartered in Paris, France.

Elyo SA provides energy and environmental management services. The firm operates district energy networks, manages utilities for industrial processes, and operates and maintains thermal and technical equipment. The company's clients include Lamy agency, Ecole de Mines, Airbus, Turbomeca, Bridgestone, and Nissan. Elyo was founded in 1994 and is headquartered in Nanterre, France.