Advanced Heat Treat Corp. (AHT) of Waterloo, Iowa, will celebrate its 35th anniversary in 2016.

Gary Sharp started the company with just 12 investors, two personnel and two UltraGlow ion nitride units in 1981. Today, the company is a recognized leader in providing heat-treating services and superior metallurgical solutions to companies across the globe. AHT’s UltraGlow family of processes includes plasma (ion) nitriding, ferritic nitrocarburizing (FNC), gas nitriding, UltraOx, through-hardening, carburizing, carbonitriding and induction hardening. The company has over 170 employees, four U.S. locations and 50 nitriding vessels, and it offers over 20 different surface-treatment solutions.