Founded in 1937, CITEL is an industrial group which designs, manufactures and markets solutions for the protection of electrical equipment, data, and fixed and mobile telephony as well as for photovoltaic installations against transient overvoltages.

 
Hi-tech company based in Rousset, between Aix en Provence and Marseille, NEXCIS designs and manufactures innovative thin film CIGS (copper indium gallium selenium sulfur) photovoltaic modules.