Fern Engineering's headquarters are located on Cape Cod in Pocasset, Massachusetts, USA.

Fern was founded in 1967 as an engineering consultant company specializing in gas turbines. The company originally focused on providing design and failure analysis services to gas turbine owners and manufacturers.

In 1979, the company was acquired by Thomassen bv, a Dutch gas turbine manufacturer. The company was commissioned to design a highly efficient 10,000 horsepower industrial gas turbine. The project, partly funded by the Dutch government, was cancelled early in 1984. Shortly thereafter, Thomassen divested themselves of their U.S. holdings, including Fern Engineering, and Fern Engineering, Inc. was reorganized and re-incorporated in July, 1984.

The company is currently owned entirely by its employees.

Since its founding, Fern Engineering's principle objective has been to establish a standard of excellence in engineering services and products. In the past three decades, Fern has grown in stature and has earned the respect of its clients as one of the foremost, authoritative, independent engineering firms in the nation. Today, the company continues to pursue the traditional Fern business line of providing expert consulting and design services, as well as innovative products, to many segments of the domestic and international turbomachinery industry.