📍 Multiple locations (US + global)
World's largest heat treatment provider. Vacuum heat treat, HIP, additive manufacturing support. Acquired Lake City Heat Treating & Stack Metallurgical Group. New facility in Monterrey, Mexico.
Vacuum
HIP
Aerospace
Global
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📍 Warsaw, Indiana
Vacuum heat treatment and hot isostatic pressing for medical market. Now part of Bodycote family since 2024.
Medical
HIP
Vacuum
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📍 Portland, OR (5938 N Basin Ave) + 4 locations
HIP, heat treatment, metal finishing. Key provider for civil aerospace, defense, and energy markets. Acquired by Bodycote in 2023/2024.
HIP
Aerospace
Defense
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📍 St. Louis, MO; Cleveland, OH; Kansas City, KS; Nashville, TN; Murfreesboro, TN
#3 largest commercial heat treater in North America (2024 rankings). Austempering, carburizing, carbonitriding, through hardening, vacuum heat treatment, high-temp vacuum brazing. Part of Aalberts Surface Technologies.
Full Service
Austempering
Brazing
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📍 Brampton, ON (225 Wilkinson Rd) — largest in Canada
Largest commercial heat treater in Canada. 7 continuous furnaces including 3 of the largest in Canada — over 300,000 lbs/day. Mesh belt fastener treating, induction hardening, nitriding, carburizing. Acquired Exactatherm.
Mesh Belt
Fasteners
Canada
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📍 Quakertown, PA
High-end heat treating for medical, aerospace, and defense. Modern facility. New entry on Monty's Top 52 list (2024/2025). Vacuum heat treatment, brazing, atmospheric heat treatment, metallurgical consulting.
Medical
Aerospace
Modern Facility
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📍 Wichita, KS (1423 S McLean Blvd)
NADCAP — 17 accreditations. Approved by Northrop Grumman for heat treatment to AMS 2750/3. Aluminum + steel heat treating, shot peening, thermal spray. 350+ employees, 500,000+ sq ft. On Monty's Top 50 list.
NADCAP
Aerospace
Shot Peening
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📍 HQ Souderton, PA + Hermitage PA, Fontana & San Diego CA, Greenville SC, Chesterfield MI
Vacuum heat treating & brazing — annealing, stress relieving, age hardening. International full-service provider.
Vacuum
Brazing
International
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📍 Midwest (IL, IN, MI), PA, TX
Precision metal heat treating — hardening, carburizing, nitriding, annealing. Multiple locations across key industrial corridors.
Carburizing
Nitriding
Multi-Location
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📍 Bedford, PA (7 Corporate Dr) & Lansdale, PA (951 W 8th St)
Large commercial treater with 30+ services including austempering, martempering, vacuum heat treating.
30+ Services
Austempering
Martempering
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📍 Clintonville, WI (219 Staff Sergeant Warren Hansen Dr)
ISO 9001 & ISO 17025 accredited. Heat treating for agriculture, construction, energy, power gen, and tool & die — hardening, vacuum, induction, annealing, normalizing, surface treatments. In-house metallurgical lab and own pickup/delivery fleet.
Tool & Die
Pickup/Delivery
Nitriding
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📍 Richmond, Kentucky (est. 1969)
Family-owned since 1969. Batch integral quench processing, carbonitriding, carburizing, scanning + single point induction, tempering, vacuum heat treating, laser surface hardening, laser welding. Served Winter Olympics ice skating blade supplier.
Laser Hardening
Carburizing
Vacuum
Family Owned
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📍 Burbank, CA (est. early 1950s)
NADCAP accredited. Aerospace approved. Atmosphere batch heat treating; vacuum with argon/nitrogen quench; argon retort; neutral salt bath. Alloy/stainless/tool/copper/titanium alloys. FAA Repair Station Certificate. 35+ employees. Pick-up/delivery fleet.
NADCAP
FAA Repair Station
Salt Bath
Titanium
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📍 Burbank, CA (415 S Varney St)
NADCAP certified. Aerospace, military, automotive, electronic, medical industries. Commercial + specialty steel treating. One of the most respected metal heat treating service companies in Southern California.
NADCAP
Military
Medical
Southern CA
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📍 Valley City OH / NC / MI (est. 1977)
Nadcap Merit status for heat treating and brazing. IATF-16949 certified. Induction heat treating, annealing, brazing, magnetic particle inspection, prototype/development, engineering/consulting. Specialized in induction processes.
NADCAP Merit
IATF-16949
Induction
3 Locations
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📍 Crystal Lake, IL (775 Tek Dr)
Est. 1946 — Midwest's most versatile induction heat treating facility. Two-time "Commercial Heat Treater of the Year" (Industrial Heating Magazine). Induction annealing, tempering, case hardening, scan hardening.
Induction
Case Hardening
Scanning
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📍 Wytheville, VA (255 E Marshall St)
Est. 1995, ISO 9001-2015 certified. Steel heat treating service with in-house machining. Listed among Top 52 commercial heat treaters.
Steel Heat Treat
ISO 9001
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📍 Pontiac, Homer & Flint, MI + Puebla, Mexico
Founded 1965. High-volume automotive and industrial heat treating — ferritic nitrocarburizing, nitriding, and proprietary Nanowear™/Ultrawear™ coatings. 4 facilities, 40 furnaces, 16M+ rotors/year capacity.
Automotive
Nitriding
High Volume
Coatings
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📍 8 facilities — NJ, NC, GA, FL & Puerto Rico
Since 1953. Full-service heat treating for automotive, defense, aerospace, and healthcare — vacuum, atmosphere, induction, nitriding, carburizing, annealing, cryogenics. East Coast coverage from New Jersey to Florida.
Full Service
Vacuum
8 Locations
Automotive
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📍 Waterloo, IA (HQ) + Monroe, MI + Cullman, AL
Est. 1981. North America's largest commercial plasma (ion) nitriding firm. UltraGlow® ion & gas nitriding, UltraOx®, carburizing, quench & temper, induction — 20+ surface treatments.
Nitriding
Plasma
Multi-Location
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📍 Pontiac, MI + Homer, MI
Since 1978 — first furnace treated Ford steering knuckles. 4 production facilities, 161,000+ sq ft, 50M+ lbs/month capacity, 250 employees. High-volume automotive.
Automotive
High Volume
Multi-Location
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📍 3 Detroit-area, MI plants + Connecticut
Founded 1956. Case hardening, quenching, vacuum, deep freezing/cryogenics, tempering, annealing. Strong aerospace and bearing industry presence.
Aerospace
Bearings
Vacuum
Multi-Location
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📍 Elk Grove Village & Cherry Valley, IL
NADCAP + CQI-9 + ISO 9001. Batch I/Q, mesh belt, vacuum (10-bar quench), salt bath, Nitrotec™ (only NA commercial licensee), marquenching, induction, straightening, in-house metallurgical lab.
NADCAP
Vacuum
Nitriding
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📍 Grand Rapids, MI (1230 Monroe Ave NW)
Since 1955. 85,000 sq ft — one of North America's largest vacuum heat treaters with high-pressure quenching to 15 bar. Cryogenic, flame hardening, induction. Automotive, aerospace, medical. Open 24 hours.
Vacuum
15-Bar Quench
Cryo
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📍 Jackson, MI (613 Carroll Ave)
Since 1943. 350,000 sq ft single site. ISO 9001:2015, Ford Preferred Supplier. Worldwide leader in induction-hardened steel fasteners. Gas nitriding, carbonitriding, induction hardening.
Induction
Fasteners
ISO 9001
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📍 Oakville & Burlington, ON + Quebec + Greenville, SC
Major Canadian vacuum heat treater and vacuum furnace manufacturer. NADCAP-accredited aerospace work (Pratt & Whitney Canada, Boeing, Rolls-Royce Canada). Heat treating, brazing, coatings.
NADCAP
Vacuum
Furnace Builder
Canada
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📍 Santa Fe Springs, CA (10643 S. Norwalk Blvd)
Est. 1957. NADCAP accredited. Aerospace, defense, energy, and electronics work in alloy, carbon, stainless, nickel, and copper alloys. Free pick-up and delivery.
NADCAP
Aerospace
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📍 Southgate, CA
Founded 1962. Self-described fastest-growing aerospace heat treater in the West. NADCAP + AQS AC7004, approved by Boeing, GE, Northrop, Raytheon. High-pressure gas quench vacuum, carburizing, ion & gas nitriding, titanium.
NADCAP
Aerospace
Ion Nitriding
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📍 Dayton, OH
Family-owned Dayton tool & die leader since 1967. Vacuum heat treating pioneer — one of the first in the country with NADCAP and ISO. 2017 Industrial Heating 'Commercial Heat Treater of the Year.' Serves aerospace, medical, mold-making, food processing.
NADCAP
Tool & Die
Vacuum
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📍 Quebec, Canada (3 plants)
Founded 1982. Largest commercial heat treater in Quebec. NADCAP certified, approved Safran Landing Gear supplier. Vacuum hardening, batch I/Q carburizing, salt processing, cryogenics. Automotive, aerospace, defense, energy.
NADCAP
Canada
Full Service
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📍 Raleigh, NC + Lynchburg, VA
Since 1976. NADCAP, AS9100, ITAR, ISO 9001, Appendix B nuclear. Vacuum, batch I/Q, nitriding/FNC, induction, cryo, salt bath austempering & marquenching, black oxide. In-house metallurgical lab and pickup fleet.
NADCAP
Full Range
Multi-Location
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📍 Akron, OH
Since 1943. NADCAP accredited for 20 years. Batch heat treating in salt, controlled atmosphere, air, and vacuum plus metallurgical consulting. 7–10 day standard lead time, own trucks.
NADCAP
Salt Bath
Vacuum
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📍 Richland Hills, TX
Est. 2009. ISO 9001:2015. 25,000 sq ft, 60+ employees. Batch I/Q, carburizing/carbonitriding, vacuum, flame hardening, deep freeze, straightening, induction. Aerospace, oil & gas, medical.
ISO 9001
Vacuum
Induction
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📍 Springfield, OH + other US plants (TN, AR)
Nihon Parkerizing's North American subsidiary. Isonite salt-bath nitriding to AMS 2755/2753, ferritic nitrocarburizing, carburizing, carbonitriding, neutral hardening, continuous roller-hearth carburizing.
Nitriding
Salt Bath
Multi-Location
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📍 Houston, TX (3939 Blaffer St)
Since 1945 — first US commercial heat treater with ISO 9001; AS9100. Handles parts to 100,000 lbs and 58 ft. Induction (4 N/C vertical scanners, 125kW), vertical treating, controlled-atmosphere carburizing, I.D. drilling, continuous barrel furnace, straightening, UT, in-house lab.
Induction
Heavy Capacity
AS9100
ISO 9001
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📍 Houston, TX (6640 Mayard Rd)
Founded 1978. ISO 9001:2015, MTI member. Carburizing, carbonitriding, gas nitriding, stress relieving, solution anneal, quench & temper. Customers range from local machine shops to international oil & gas.
Nitriding
Carburizing
ISO 9001
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📍 Elyria, OH
Since 1947. NADCAP accredited. Oil quench (carburizing, carbonitriding, hardening), induction (hardening, tempering, annealing), vacuum (hardening, precipitation hardening), bell furnaces, straightening presses, QA lab.
NADCAP
Vacuum
Induction
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📍 Madison Heights, MI
Since 1959, now a BMT Aerospace company. NADCAP, AS9100, ITAR, ISO/IEC 17025, CMMC Level 2. Vacuum heat treating with in-house metallurgical lab. Aerospace & defense, medical, automotive, performance racing.
NADCAP
Aerospace
Vacuum
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📍 Traverse City, MI
40+ years of "high end" heat treating — ion nitriding and vacuum hardening lead a wide range of thermal processes. Own truck fleet, 24/7 carrier service, detailed hardness inspection and protective packaging.
Ion Nitriding
Vacuum
Northern MI
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📍 Warminster, PA + Concord, OH + Alachua, FL
Hot isostatic pressing specialist — 13 units to 30" dia × 105" high, 30,000 psi, 2550°F. ISO 9001, AS9100, NADCAP; approved by P&W, GE, Rolls-Royce, Lockheed. Castings, powder metallurgy, additive manufacturing.
HIP
NADCAP
Multi-Location
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📍 Fort Worth, TX
Family-owned 40+ years. Full service — vacuum heat treating, carburizing, nitro carburizing, flame hardening, normalizing, stress relieving, plasma nitriding. MTI member. 50,000 sq ft on 7 acres.
Full Service
Plasma Nitriding
Vacuum
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📍 Port Huron, MI
US arm of ALD Vacuum Technologies (Germany). High-pressure gas quenching, low-pressure carburizing, hardening, annealing, tempering — industrial-scale automotive and mechanical engineering work.
Vacuum
Low Pressure Carburizing
Automotive
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📍 Pinson, AL (6179 Sunrise Dr)
Family-owned since 1970, just north of Birmingham. Stress relieving, vacuum hardening, annealing, oil/water quench & temper, aluminum solution treat & age, shot blast. AS9100. Serves fabrication, machining, forging & casting shops across the southeast.
Castings
Vacuum
AS9100
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📍 Franklin, IN + Aurora, IL + Mason, MI
NITREG® nitriding and nitrocarburizing specialists. AS9100D + NADCAP certified. Also vacuum and conventional heat treatments. Aerospace, automotive, defense, medical, oil & gas.
NADCAP
Nitriding
Multi-Location
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📍 Houston, TX (11307 W Little York Rd)
Since 1993. Atmosphere heat treating, carburizing, normalizing, annealing, age hardening, quenching, tempering. 3 saws to 28" OD, 6 presses to 1,000 ton, in-house Brinell/Rockwell testing. Oil & gas, aerospace, automotive.
Carburizing
Oil & Gas
Presses
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