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

The company is build on the foundation and motto of "Quality and Reliability". Komatsu strictly upholds this policy and is fully committed to giving ground-breaking and safe services and products which meet and go beyond the expectations of their clients throughout the globe. This standard is a part of every piece of machine and line that they produce.

The company manufactures a huge variety of industrial machinery such as: Wheel Loaders, Articulated Dump Trucks, Mini Hydraulic Excavators, Bulldozers, Dump Trucks, Motor Graders, Forklift Trucks, Compact Machines for Utility Equipment, Feller-bunchers, Harvesters, Mini Wheel Loaders, Backhoe Loaders and Skid Steer Loaders.

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

Komatsu's full line of products comprise Hydraulic Equipment Casting Products, Casting Products and Components, Engines and Diesel Engines. They have a variety of Metal Forging Equipment, Stamping Press, Servo-Presses and large, medium and small-sized presses.

Komatsu provides Laser Cutting Machines, Press Brakes, Shears, Sheet-Metal Machines and Fine Plasma Cutting Machines. Several of their well-known Machine Tools consist of: Transfer Machines, Wire Saws, Crankshaft Millers and Machining Centers.

Komatsu also has a complete series of Defense-related machinery as well, that includes items such as: Thermoelectric Modules, Temperature-control Equipment for Semiconductor Manufacturing, Excimer Lasers, Prefabricated Commercial-Use Structures, CSS-Net and Packing and Transport Equipment.