Cummins Inc. is considered a renowned world leader among manufacturers and mechanics of diesel truck engines used in the delivery and agricultural industries, as well as in the manufacture of diesel and gas-generator systems.

Detroit Diesel is known throughout the world as a producer of reliable, efficient and ecological pick-up trucks and semi-diesel engines. Detroit Diesel was founded in 1938 as a separate sub-branch of General Motors.

Caterpillar Inc. is known throughout the world and needs no further introduction, as its black and yellow trademark can be seen on every continent. Currently, Catepillar Inc. is the undisputed world leader among manufacturers of specialized technology.