Remote inspections of industrial structures and facilities are highly costly, hazardous and sometimes impossible to achieve. While the fast growth of unmanned systems solutions is offering an answer, free-flying drones are still limited to a fraction of their potential in industrial maintenance, because of their limited flight time and their low safety level. Our tethering solutions dramatically increase the safety of drone operations through a reliable power supply and secured communications. Immune to interference and scrambling, battery failures and fly-aways, our systems allow safe and efficient commercial inspections, in a variety of demanding industrial environments as airports, wind farms or refineries. Operating in a volume of operation mastered by the micro-tether, industrial companies and drone operators now have the benefit of full-control on their flights, facilitating the maintenance and the protection of their assets.