List of the companies
There are 620 companies.

TEKFLOW SAS (France)
TESTEX CND (France)
TFE (France)
TFE SA (France)
TGR Research (France)
Themis Ingenierie (France)
topingg de cendansat (Algeria)
Topographie Cartographie Gabon (TCG) (Gabon)
Total (France)
Tractebel Engineering SA (Belgium)
TRANSTECHNO (France)
TVA Engineering (France)
UNIGAZ s.a.l (Lebanon)
UPCR Groupe (France)
VACOAS MANAGEMENT (France)