GESOP manufactures, installs and maintains smoke-containment screens in fixed and mobile form, irrigation-free fire curtains, fire-rated sliding and swing doors and fire hatches, for shopping centres, airports, tunnels, hospitals and industrial sites. Its screens are classified to NF EN 12101-1 and the DAS standards NF S 61-937-1 and -12 at DH30 or better, with fire and DAS test reports issued by Efectis France, and its maintenance arm is APSAD I16 and F16 certified by CNPP Cert.