[en] Full text: CHELATEC (www.chelatec.fr) was founded in 2000 as a spin-off INSERM at institute U-463, Nantes Hospital, France. The present team has benefited from the abilities and know-how acquired in radioimmunotargeting within the vectorisation group of INSERM. The company provides complete engineering services based on complexation and vectorisation, as adapted to the client's needs in the fields of customised radiolabelling, radioimmunotargeting, decorporation and trapping of metals. CHELATEC conducts R and D activity under contract in key fields of chemical applications to medicine and environment. Our mission is to enable pharmaceutical industries and biotechnolgies companies to successfully exploit our skills and to help them in their product of process development. CHELATEC produces and supplies radiolabelled compounds