Argonaut Constructors has been providing general contracting services since 1957. The company designs and undertakes commercial, industrial and residential projects. It has a staff of more than 200 personnel, including project managers, estimators and supervisors. The company provides construction, project management, material handling, grading and paving services. Its grading and paving services feature excavation, dirt moving and finishing of highways, commercial sites, parks, lakes, ponds and schools. Operational for over 50 years, the company s underground pipeline work includes utility trenching and pipeline installation. In addition, it offers pipeline construction and water pollution prevention plans. Argonaut Constructors is headquartered in Santa Rosa, Calif.