World Top Engines Manufacturing Companies List by Market Cap as on Jan 1st, 2020

Caterpillar is the world’s leading manufacturer of construction and mining equipment, diesel and natural gas engines, industrial gas turbines and diesel-electric locomotives. Revenues of 2019 is $53.8 billion USD per year. The company principally operates through its three primary segments - Construction Industries, Resource Industries and Energy & Transportation - and also provides financing and related services through its Financial Products segment.

Cummins manufactures engines, generators and other power related equipment and engineering products. Headquarters is in Indiana, USA.

Manufactures and markets auto parts. Headquarters in China.

WEG company is about the global solutions for electric motors, variable frequency drives, soft starters, controls, panel, transformer and generators. It is certified by the ISO. It manufactures the electric motor, industrial automation and control generators, transformers, switch gear, drive and coating Engineering, primer, paints, varnish. In 2008 a new factory is launched in India. The headquarters is in Brazil.

MTU AERO ENGINES AG is a manufactures engines and develops and offers commercial engine service and support for military and civil air craft engines; industrial gas turbines. The headquarters is in Germany. 

Commercial Vehicles manufacturing company with headquarters in Tokyo, Japan. Manufactures Industrial Engines and Marine Engines as well.

Automobile sector company with headquarters in China and owned by China government. Headquarters is in China.

Automobile manufacturing company with headquarters in Japan. Manufactures trucks, engines and auto parts.

Manufactures 2 wheelers, bikes and commercial vehicles. Headquarters is in Italy.