Top 30 People: 10. Sonke Siegfriedsen President, Aerodyn

Turbine designer Aerodyn, with around 40 employees, is one of the smallest companies here. Yet it has installed around 50GW of turbines, albeit through licencees such as Ming Yang.

(2013: 18)


Possibly one of the industry's last great designers, Siegfriedsen has been at the epicentre of wind power's technological progress. Aerodyn started in 1983 with a 30kW two-bladed turbine, and is now on the cusp of installing a 6MW offshore machine, while seeking a partner to build its 8MW floating turbine concept.