ProMark Utility Supply, Inc. is a leading manufacturer of Pipeline Markers, Marker Posts and Utility Signs with over 25 years of experience in identifying and marking buried utilities. We manufacture Pipeline Markers and Utility Signs for industries such as gas/oil, telecom, electric, water and sewer. We also manufacture boundary and trail markers. In addition to our Pipeline Markers we manufacture a complete line of Cathodic Protection Test Stations and Accessories. Our products are made to perform, identify, prevent damage and dangerous accidents. ProMark Pipeline Markers, Utility Signs and Cathodic Protection Test Stations are available through distributors worldwide.