Perma-Pipe International Holdings, Inc. engages in the design, manufacture, and sale of specialty piping and leak detection systems. The company is headquartered in The Woodlands, Texas and currently employs 819 full-time employees. The firm engineers, designs, manufactures and sells specialty piping systems and leak detection systems. Its specialty piping systems include insulated and jacketed district heating and cooling piping systems for efficient energy distribution from central energy plants to multiple locations; primary and secondary containment piping systems for transporting chemicals, hazardous fluids and petroleum products; the coating and/or insulation of oil and gas gathering and transmission pipelines, and liquid and powder based anti-corrosion coatings applied both to the external and internal surfaces of steel pipe. The firm's leak detection systems are sold with its piping systems or on a stand-alone basis.