Komatsu started to establish themselves in the year 1921 as a diversified provider of industrial-use services and products. Still to this day, the Komatsu Group remains leading producer of construction and and mining machinery. They also are active in other businesses like for instance compact machines, utility equipment, logistics and other solutions-based operations, industrial machines and forest machines. Komatsu Group is also involved in various types 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 providing innovative and safe services and products that meet and exceed the expectations of their customers all around the globe. This standard is a part of each and every piece of machinery and line that they manufacture.

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

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

Komatsu's complete series of products comprise Hydraulic Equipment Casting Products, Casting Products and Components, Engines and Diesel Engines. They have an array Metal Forging Equipment, Stamping Press, Servo-Presses and large, medium and small-sized presses.

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

Komatsu also has a full line of Defense-related machines as well, that consist of items like: Temperature-control Equipment for Semiconductor Manufacturing, Thermoelectric Modules, Prefabricated Commercial-Use Structures, Excimer Lasers, Packing and Transport Equipment and CSS-Net.