New York-based Kohlberg & Co. has agreed to buy a majority stake in EN Engineering, a Warrenville-based utility services firm, from General Atlantic.

EN Engineering provides comprehensive design, engineering, and consulting services to gas and electric utilities, as well as other energy and industrial end-markets. With over 1,500 professionals in 30 offices nationwide, EN Engineering provides customers expertise in gas distribution, electric power generation and distribution, natural gas and oil pipeline infrastructure, automation systems, integrity management, and industrial and refinery solutions.

“The EN Engineering team is highly enthusiastic to partner with Kohlberg for our next phase of growth,” EN Engineering CEO Steve Knowles said in a statement. “Kohlberg’s track record of success working with utility services companies will provide us with meaningful support as we look to expand our footprint and enhance our ability to meet customers’ needs.”

General Atlantic Managing Director Peter Munzig added: “We are pleased that our partnership with Steve and the team at EN Engineering has helped the company accelerate its growth trajectory and execution of its long-term strategic plan. We look forward to the continued growth and success of EN Engineering in partnership with Kohlberg.”

Ropes & Gray LLP served as legal counsel to Kohlberg. Houlihan Lokey served as financial adviser and Paul, Weiss, Rifkind, Wharton & Garrison LLP served as legal counsel to EN Engineering.