Site Design Engineering, LLC (SDE) was established in 2006 in Middleboro, Massachusetts by President Daniel Mulloy.
In 2008, the firm opened Land Development Engineering & Consulting, LLC (LDEC) in Middletown, R.I. as a subsidiary to SDE to serve its clients of Greater Rhode Island.
Today, SDE/LDEC's two office locations serve a variety of different public and private sector clients throughout Rhode Island, Southeastern Massachusetts, Greater Boston, and the Cape and Islands.
