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The History of Enterprise compression & power engines

A Robust History Dating Back to 1886
Cooper Machinery Services is the O.E.M. of Enterprise Engines

History of enterprise

With roots dating to 1886, the History of Enterprise line of large bore power and compression engines is still alive and well.

Beginning of Enterprise History

In 1886, Martens and two business partners, James William Heaney and A. Anderson, developed a new business supplying industrial equipment castings. Their primary focus was on gold mining machinery, consisting mainly of compression cylinder castings for large engines. After the notorious 1906 San Francisco earthquake and fire, the Enterprise Engine and Machinery Company played a significant role in the rebuilding of the city. Their recovery activities provided Martens and his partners additional opportunities to stimulate the growth of and the momentum to expand their business.

Crucible Steel

In 1915, the company acquired a crucible steel foundry. Shortly after this purchase, Martens and his partners established a brass and bronze foundry in Los Angeles. In 1917, the company constructed an electric arc furnace for use in its steel foundry. This was the only foundry of its type on the west coast, and it ultimately replaced the old crucible steel process. In the same year, a new engine department was created, and a team of engineers was hired to design and manufacture various types of heavy-duty engines fueled by gas and distillates.


The first engines produced by the team were single-cylinder, rated at eight horsepower. The following engines were twin-cylinder, rated at 20 horsepower (15 kW). In a short time, designs were developed for engine models capable of producing up to 250 horsepower (190 kW).

Stemming from the success of their gas and distillate fuel engines, the engineers set out to create a line of diesel engines. At this time, the cost of operating a diesel engine was approximately 20 cents per hour, compared to the $2.75 for gasoline engines. This economical Enterprise Diesel engine became very popular in a number of industries which had previously utilized gas powered engines.

Merger with Western Machinery Company

In 1924, The Enterprise Engine and Machinery Company merged with the Western Machinery Company of Los Angeles. This merger made the new organization the premier manufacturer of internal combustion engines on the west coast. In an effort to diversify the range of products, the company began selling oil burners and food processing equipments.

World War II

During World War II, Enterprise built hundreds of diesel engines for the United States Navy for tugs, harbor craft, small vessels, and auxiliary electric generators on larger ships. In addition, many Enterprise engines were sold to drive electric power generators in cities and towns across America.

Merger with Adel Precision Products Company

In the mid-1950s, after many decades of growth, Enterprise Engine & Foundry Company merged with Adel Precision Products Company of Burbank, part of the General Metals Corporation. This gave rise to a substantial increase of the company’s engineering and production capacity and its testing and research capability. The Enterprise had the necessary resources allowing them to manufacture diesel engines ranging from 73 horsepower (54 kW) to 7,700 horsepower (5,700 kW). These are now being used in almost every conceivable type of prime-mover application from powering boats and pumping oil to generate electricity. From its modest beginnings in 1886, Enterprise had become a mammoth division of a major American corporation.

Developments Since 1960

Between 1960 and 1990, Enterprise Engine & Foundry Company changed its ownership numerous times. These transitional decades were accompanied by a major downturn in domestic demand for large power engines. The strong U.S. dollar and rising interest rates hurt Enterprise’s export sales. In the late 1960s, Enterprise Engine & Foundry Company was purchased by Delaval Turbine. Then in the 1970s, Delaval Turbine was acquired by Transamerica Corporation. In 1987, Transamerica elected to spin off the Delaval operations to its shareholders in the form of a dividend. The name was changed to IMO Delaval. In 1988, IMO Delaval sold the Enterprise after market services to Cooper Industries, which in turn, spun off its oil and gas related holdings to Cameron Corporation, previously known as Cooper Cameron Corporation.

Present Day
Cooper Machinery Services, headquartered in Houston, Texas, is the current O.E.M. for Enterprise engines and continues to provide parts, service, repairs, and upgrades to the Enterprise engines operating globally in both power generation and gas compression installations. Currently, over 30 Enterprise engines operate in nuclear power plants worldwide providing tertiary power generation backup.

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