Underground Construction Co., Inc., headquartered in Benicia, California, has provided quality construction services to our clients for more than 75 years. Since laying our first pipe in 1936, we have successfully completed thousands of government, commercial and private sector construction projects throughout the United States. Underground Construction Co., Inc. is one of the oldest and most respected contractors in the West. We continue to lead our industry in safety, quality, customer satisfaction, and community service. Our complete range of construction services includes gas transmission and distribution, electrical transmission and distribution, aircraft fueling facilities, industrial and special projects, telecommunications and utilities.