Komatsu began to establish themselves during the year 1921 as a diversified provider of industrial-use services and products. Still to this day, the Komatsu Group remains leading manufacturer of construction and and mining machinery. They also are active in other types of businesses such as compact machines, utility equipment, logistics and other solutions-based operations, forest machines and industrial machines. Komatsu Group is also involved in different kinds of compact machines and utility equipment.

The company maintains "Quality and Reliability" as their most vital management policy. Komatsu strictly upholds this policy and is fully dedicated to giving safe and innovative services and products which meet and exceed the expectations of their customers throughout the globe. This standard is a part of each piece of machine and line which they produce.

Komatsu produces different industrial machines, including: Articulated Dump Trucks, Wheel Loaders, Mini Hydraulic Excavators, Bulldozers, Motor Graders, Dump Trucks, Forklift Trucks, Compact Machines for Utility Equipment, Harvesters, Feller-bunchers, Mini Wheel Loaders, Backhoe Loaders and Skid Steer Loaders.

Komatsu also deals in Mining and Construction Equipment, Mobile Screens and Forwarders. They also make other machines specific for Slag Handling, Demolition, Airport Equipment, Small-diameter Pipe Jacking Machines referred to as "Ironmole", Tunneling machinery and Shield Machines.

Komatsu has a full line of Hydraulic Equipment Casting Products, Components and Casting Products, Engines and Diesel Engines. They have an array Metal Forging Equipment, Stamping Press, Servo-Presses and large, medium and small-sized presses.

Komatsu offers Laser Cutting Machines, Press Brakes, Fine Plasma Cutting Machines, Shears and Sheet-Metal Machines. Some of their popular Machine Tools include: Transfer Machines, Wire Saws, Machining Centers and Crankshaft Millers.

The company has a full line of Defense-related machines also. Some of their many items include: Thermoelectric Modules, Temperature-control Equipment for Semiconductor Manufacturing, Prefabricated Commercial-Use Structures, Excimer Lasers, CSS-Net and Packing and Transport Equipment.