Gateway-Full Circle Energy Services is a pipeline construction and oil and gas exploration company headquartered in Oklahoma City, OK. Founded in 1997, Gateway has continued to expand its suite of services to meet the needs of its clients. With nearly 200 employees during peak construction times, Gateway provides a wide range of services focusing on aviation, buildings, construction, enterprise solutions, federal, survey, transportation, and water. The company strives to provide its clients with the highest quality of services and products.