John Rebhan Photo


Company History

Fabricating & Machining for 55+ Years...

For over 55 years Warren Fabricating has been powering industry across all sectors without compromising the core values of our founder, John C. Rebhan.


John Rebhan Photo

John Founds Warren Fabricating

John C. Rebhan and William Marsteller founded Marsteller & Rebhan Steel Fabricating and Manufacturing Inc. in 1967, a steel manufacturer specializing in the welding, rolling, machining, and assembly of steel components for the steel mill and mining industries. They began with four employees in an 8,000 sq ft rented garage. Three years later, John Rebhan borrowed $5,000 from his new wife, Susan Rebhan, her life’s savings to buy out his partner William Marsteller and Warren Fabricating Corporation was born in 1970. At that time, Susan worked and managed the offices, while John manned the shop. Over the next fifty years the company evolved to employ over 250 employees and 600,000 sq ft of manufacturing space. Susan would serve the company as an advisor and later Executive Board Member for the next five decades.



Field and Erection is Founded

The 1980s brought repair and fabricating mining equipment and replacement parts for draglines in the mining industry. In the early 1980’s Mr. Rebhan founded WARFAB Field and Erection, which did the installation and erection for our mining products. In 1985 he founded Ohio Steel Sheet and Plate, Inc. as the raw material source for Warren Fabricating. That steel service center developed into over 400 national accounts delivering steel to all 50 states. John and Susan’s two children, Eric and Regina Rebhan would enter the businesses in the late 1980’s learning various jobs both in the offices and the shop floors. Eric focused primarily on Ohio Steel Sheet & Plate’s inventory, production, and sales developments of the over 400 national accounts.


Ohio Steel Sheet & Plate

Ohio Steel Sheet & Plate is Formed

In 1985 he founded Ohio Steel Sheet and Plate, Inc. as the raw material source for Warren Fabricating. That steel service center developed into over 400 national accounts delivering steel to all 50 states.


150 Ton Crane | Warren Fabricating

Warren Fabricating Expands

The 1990s brought a boom in the power generation industry, and Warren Fabricating received their ISO 9001 certification. Regina’s main focus was the development of a Quality Management System and a devoted Quality Control Department, Warren Fabricating established itself with a global footprint, servicing customers like General Electric, Westinghouse/Siemens, and Mitsubishi Heavy Industries. In the early 1990s, Warren Fabricating invested in a new industrial complex in Hubbard, Ohio, and pursued a niche market in Heavy Steel Fabricating and Machining. Over the next two decades, Warren Fabricating invested in 150 ton crane capacity and 12 of the largest horizontal and vertical boring mills in the nation.


Eric & Regina Rebhan

A New Generation

In 2008, Mr. Rebhan passed away, leaving the businesses to his son and daughter Eric Rebhan and Regina Mitchell. Both have over 25 years of experience in every department in both companies. Eric specializes in sales and steel purchasing and leading the sales teams to success. Regina spent most of her career in Quality Control and leads special projects, production, quality, and employee benefits.


Faro Vantage Laser Inspection | Warren Fabricating

Looking Toward The Future

After twelve years of partnering equally with Warren Fabricating Corporation and Ohio Steel Sheet & Plate, Eric and Regina have decided to focus on an individual company they each have a passion for. Eric has always excelled at Ohio Steel Sheet and Plate, and Regina’s interest has always been in fabricating and machining at Warren Fabricating and a stock transfer was agreed upon between the siblings, giving each of them a controlling interest in the companies. New capital investments in welding technologies and two large Gantry mills and growing and training the Quality Control Department with new certifications has the future for Warren Fabricating is once again changing. Regina has led Warren Fabricating to achieve AISC certification certification to expand into new and exciting markets, including building construction, naval defense and submarine components.