SEB is a continuation of a consulting practice that began as Justin Gray Associates in 1970 in Cambridge, MA. In 1979, two principles of JGA, Bob Engler and Jim Stockard created Stockard & Engler Inc. Later they were joined by Gordon Brigham to become Stockard & Engler & Brigham.
During the 2000's, Jim left the firm to become Curator of the Loeb Fellowship Program at the Harvard Graduate School of Design and Gordon retired. The firm became SEB, LLC in 2009. Bob Engler has been joined by his sons Brian and Geoff. Brian Engler joined SEB in 2004 and is in charge of the firm's affordable housing lottery contracts; Geoff Engler joined the firm in 2005 and is managing many of the development consulting contracts.