Welcome to        ProMark

ProMark Utility Supply, Inc. is a leading manufacturer of Pipeline Markers, Marker Posts and Utility Signs. We also manufacture a complete line of Cathodic Protection Test Stations and accessories. Our products are made to perform, identify, prevent damage and dangerous accidents. ProMark Markers and CP Test Stations are available through distributors worldwide.

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Dome Marker PostCABLE & PIPELINE MARKER The PM-303 Dome Marker Post is a Cable and Pipeline Marker used as a Warning Sign to mark underground utilities such as:  Fiber Optic … View
Flexible Utility MarkerCABLE & PIPELINE MARKER The PM-301 Flexible Utility Marker is Cable and Pipeline Marker used as a Warning Sign to mark underground utilities such as: Fiber Optic … View
Poly SignsProMark Poly Signs are made from specially formulated (HDPE) High Density Polyethylene with UV inhibitors and are 100% recyclable.  The signs are resistant to chemicals, … View
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PM-TS3 CP Test StationCP TEST STATION (3″) The PM-TS3 Test Station is an enclosure that protects circuits and terminals.  ProMark’s CP Test Station is also used in telecommunications as a grounding box.  … View
PM-TS5 Flush Mounted Test StationFLUSH MOUNTED TEST STATION The PM-TS5 is a Flush Mounted Test Station made in the USA from specially formulated engineered grade fiber reinforced resins.  This Terminal Enclosure secures … View
CP Test Stations and AccessoriesCP TEST STATIONS AND ACCESSORIES Test Stations are made for monitoring buried items and providing an outlet to alter or manipulate chemical reactions taking place … View
CP Junction BoxesPOLYCARBONATE JUNCTION BOXES/ENCLOSURES Pro-Mark Polycarbonate non-metallic Enclosures are designed to meet NEMA 4X standards.  Junction Boxes are durable for indoor and outdoor applications and are … View
PM-125PI Pavement InsertPAVEMENT INSERT Height – 5 ¾” The PM-125PI Pavement Insert can be installed in areas that must have manual leak detection surveys. Designed to be embedded in … View