The company has signed a 12-year lease for 71,484 square feet, encompassing the entire 11th and 12th floors of the building at 677 Washington Boulevard.
"EN Engineering has established itself as a premier utility services platform," said Kohlberg's Benjamin Mao.
Greenwich private equity firm General Atlantic L.L.C. will move its headquarters from 3 Pickwick Plaza to 600 Steamboat Road after signing an 11-year lease for 29,400 square feet of space.
A Greenwich private equity firm and a Chicago investment house recently purchased about half of Chris Burch's 28.3 percent stake in retailer Tory Burch L.L.C., founded and run by Burch's ex-wife.
General Atlantic L.L.C. led a $44 million investment for a minority stake in Yemeksepeti.com.
Pierpont Securities is merging with Richmond, Va.-based Cortview Capital, with both companies operating as broker-dealers for fixed-income investments.