About Us

Simply better built - for over 100 years.

Since 1918, we have been a proud supplier of advanced cutting machines, welding positioning equipment, portable cutting/welding machines, and gas equipment. We serve steel service centers, heavy equipment, general fabrication, energy, shipbuilding, pipe & vessel, transportation, education, construction, tank fabrication, repair and maintenance, and other industries.

Koike Aronson Ransome History: Founding, Timeline, and Milestones

  • Koike founded in Tokyo Japan


    Koike Seisankusho (precursor to today's Koike Sanso Kogyo Co. Ltd.) is founded in Tokyo, Japan.

  • 1946

    Charles "Chuck" Aronson establishes Aronson Machine Co. in Arcade, New York to manufacture welding positioners and other equipment for the metal fabrication industry.

  • 1966

    Koike jointly develops Japan's first Numerical Controlled gas cutting machine with Toshiba Corporation.

  • 1969

    Air Reduction Company, Airco Inc., aquires Aronson Machine Co.

  • 1981

    Koike developed, marketed, and commercialized the world's first oxygen-plasma cutting system, the KPC-200A.

  • 1985

    Koike aquires Airco Inc. subsidiary, Aronson Machine Co., and establishes Koike Aronson Inc.

  • 2001

    Koike Aronson Inc. aquires positioning equipment competitor, Ransome Company.

  • 2006

    Koike Aronson Ransome receives "Manufacturer of the Year" award from Wyoming County Chamber of Commerce.

  • 2007

    Koike Aronson Ransome implements a $2.6 million cutting machine department expansion.

  • 2013

    Koike Aronson Ransome receives a $7 million grant from the Wyoming County DA to move the railroad tracks so they could expand the factory.

  • 2019

    Koike Aronson Ransome launches 3 new industry leading products - the FiberPro, ShopJet, and Cricket II - to meet growing customer demands.

  • 2020

    Koike Aronson Ransome continued to be a trusted supplier and dependable partner in serving its essential customers with high-quality machines and components during the COVID-19 pandemic.

  • 2023

    Koike launches the world's first Dual Beam Controlled fiber laser.

  • 2024

    Koike Aronson Ransome launches a new, redesigned website to enable machine purchases to be made online.

Quality Policy

"Koike Aronson Inc, is committed to a culture that promotes continuous improvement. Our high standards deliver exceptional value to our customers and shareholders. We work with you to find the right solution, tailored to your requirements and built with enhanced operator tools, education and safety controls in mind for superior usability and protection."

Our Goals & Missions

At Koike Aronson, Inc. we are dedicated to providing our customers with the highest quality product at a fair value, and providing our employees with an environment that is safe and affords opportunity for growth.  In order to demonstrate our commitment to this goal, we successfully achieved ISO 9001:2015 certification in 2007 for our Quality Management System, and we have continually worked to improve our QMS since that time. 

Code of Conduct

A conflict of interest can arise in dealing with anyone with whom Koike Aronson, Inc. transact business; customers, clients, owners, buyers, suppliers, banks, insurance companies, and people in other organizations with whom we contact and establish agreements. Please read more about our Code of Conduct.

Combating Trafficking in Persons 52.222-50 (November 2022)

Koike Aronson, Inc. and the United States Government prohibit trafficking in persons. The U.S. Government's policy prohibiting trafficking in persons is available at 48 CFR § 52.222-50 and is summarized below under the heading: "Summary of U.S. Government Policy of Prohibiting Trafficking in Persons. Please read this document for more info.