Siemens AG is a German multinational conglomerate company headquartered in Munich and the largest industrial manufacturing company in Europe with branch offices abroad. Siemens and its subsidiaries employ approximately 385,000 people worldwide and reported global revenue of around €87 billion in 2019 according to its earnings release. Siemens has 35% market share of global very small size steam turbine market.

MAN Energy Solutions is a multinational company based in Augsburg, Germany that produces large-bore diesel engines and turbomachinery for marine and stationary applications, as marine propulsion systems, power plant applications and turbochargers. MAN Energy Solutions has 21% market share of global very small size steam turbine market.

Elliott Company is headquartered in Jeannette, Pennsylvania, Elliott Company is a wholly owned subsidiary of the Japan-based company, Ebara Corporation, and is a unit of Elliott Group, Ebara Corporation's worldwide turbomachinery business. Elliott Group employs more than 2000 employees worldwide at 32 locations. Elliott Group has 13% market share of global very small size steam turbine market.