A group led by Bernhard Capital Partners Management has acquired Willbros Group Inc.’s downstream engineering services in Baton Rouge and heater engineering services in Tulsa, Oklahoma.

The sale price was not disclosed.

Bernhard Capital Partners is an investment fund headed by J.M. “Jim” Bernhard Jr., the former chairman of The Shaw Group in Baton Rouge.

The downstream engineering services will operate as Wink Engineering LLC, returning the operation to its original name. Wink was founded in Baton Rouge in 1970.

“Since being acquired by Willbros in 2009, all of the original elements of the Wink organization have remained intact,” said Chief Executive Officer Andy Farris.

“We are delighted to be returning to our roots as a privately held company and are excited about the opportunities in front of us.”

Wink’s work includes engineering and design work on refineries, petrochemical plants, storage terminals and fuel depots.

Farris said management will remain, with Kevin Steed as president of Wink Engineering; Mike Willem as general manager of the New Orleans office; Tony Huval as general manager of the Baton Rouge office; Chris Engels as general manager of the Tulsa office; and Raleigh Richards as chief financial officer.

Willbros said the sale, which closed Friday, was the initial piece of the company’s plan to sell its professional services segment.

Bernhard Capital Partners is one of several firms affiliated with Bernhard. CB&I bought The Shaw Group in 2013 in a $3 billion deal, which included Bernhard signing a two-year, noncompete agreement.

The agreement ended in February. Since then, Bernhard and his affiliated firms have formed a holding company to provide design-and-build energy infrastructure services and helped establish a $45 million pipe fabrication plant in Livingston Parish.

In March, four businesses were combined under parent company Bernhard. They are Bernhard Energy in Lafayette, Bernard Mechanical in Baton Rouge, EP Breaux Electrical in New Iberia and TME in Little Rock, Arkansas.

The four companies provide energy engineering, energy conservation, facility operations, mechanical and electrical construction, and maintenance services for commercial, institutional and industrial clients.

“The opportunity to partner with the team at BCP provides Wink with a tremendous amount of support and complementary experience in our industry,” Farris said.

“Wink’s partnership with BCP will allow the company to continue to grow as a regional and national leader in engineering design and project execution. Driven by entrepreneurial energy, rooted in sound business and financial practice, and powered by a talented, committed and a creative professional team, Wink has returned.”