Marshall and Harry Goldman founded MDE Electric Company in 1973. Since then, we have completed projects in all phases of construction, from single-family homes to hospitals. The majority of our work has specialized in large, multi-family projects. To date, we have wired over 40,000 units in the Bay Area.

In 2004 we opened MDE North, Inc. in San Francisco to focus on projects in San Francisco and its surrounding area. Since its incorporation, MDE North has completed numerous notable projects with more currently in progress. In 2006 we created a parent company, The Castine Group. The Castine Group provides organizational, administrative, and financial support to both of our contracting companies without interfering with their decision making. This new organization allows our continued expansion without sacrificing the advantages of local control.