LRA was established as a Mechanical, Electrical, and Plumbing engineering firm in 1993 by Sue and Gene Vanderford.  With the merger and absorption of the firms including Electra-Cal Contractors, Inc. (2000) and Electra-Cal Service, Inc. (2002), extensive experience in contracting and construction was added to enhance our mechanical, electrical, and plumbing engineering capabilities.

Lewis Ross Associates was incorporated October 2004.