Founded in 1998, Heat Treating Services Unlimited Inc. is headquartered in Greenville, S.C., and has extended its base of operations to include Detroit, Asheville, N.C., Wichita, Kan., and Venice, Fla. We serve customers not only in North America, but Latin America and Europe.

Each office works toward the same goals to never compromise quality, uphold the highest of standards and to keep your business running.


  • Greenville, SC
  • Detroit, MI
  • Asheville, NC
  • Wichita, KS

HTSU: The Thermal Processing Professionals