Is TERA Environnement part of a group?

Yes. TERA Environnement joined the Analytical Sciences Division of the CELNOR Group in 2025. Being part of a group gives the laboratory access to technical and commercial synergies while retaining the responsiveness and close customer relationships of a specialist organization. TERA Environnement also owns Toxilabo, a subsidiary specializing in workplace-air and biological-fluid analyses.