J.S.G. Corporation is a civil contracting firm, founded on Safety, Quality, and Integrity. Owned by the Massie family, the business is focused on developing relationships of trust with their employees, vendors and customers. We come from generations of civil contractors. We understand soil and how to shape the earth to meet the needs of your project. With 45 pieces of earthmoving trucks and equipment and 100 years of combined construction experience in our senior management team, we can deliver on what we promise.