BUILDING TO IMPROVE LIVES JEM is a premier woman-owned construction services firm in Pennsylvania that delivers value to its clients through diversity, responsiveness and a commitment to community. From the beginning, the driving force of our organization has been to improve the communities where we live and build. Serving customers throughout PA and in Maryland, Delaware and New Jersey, our team has a demonstrated history of successful projects totaling over $200 million. We deliver construction management, design build, general construction, and estimating services in higher education, corporate, government, retail, health care, community, multi-unit housing and light industrial markets.