Heat Treating Services Unlimited

What Heat Treating Services Unlimited does

Heat Treating Services Unlimited Inc. (HTSU) is a private specialty services company founded in 1998 in Greenville, South Carolina, providing maintenance, calibration, repair, and testing services to industrial thermal processing equipment operators. The company's core offerings span on-site pyrometry, temperature uniformity surveys and profiles, system accuracy tests, NFPA 86 inspection programs, refractory installation and repair, combustion tuning and optimization, process control systems implementation, and thermal processing consulting. HTSU operates an ISO/IEC 17025:2017 accredited metrology laboratory out of its Asheville, NC location, supplementing field service with in-house instrument calibration and repair for temperature controllers, chart recorders, data loggers, infrared thermometers, humidity sensors, transmitters, carbon controllers, and pH/conductivity meters. A physical product line sells thermocouples, industrial heaters, chart paper and pens, instrumentation, analyzers, survey wire, flame safety control systems, and gas trains.

The customer base is concentrated in regulated aerospace and automotive manufacturing, where HTSU positions itself against specifications including AMS 2750, Nadcap, Boeing BAC 5621/5602, Ford WHTX, CQI-9, MIL-6088G, NFPA 86, and Pratt & Whitney PWA-F40. Service contracts span 32+ US states plus Canada, Costa Rica, Puerto Rico, and parts of Europe, supported by offices in Greenville SC (headquarters), Detroit MI (Midwest Division), Asheville NC (metrology lab), Greeneville TN, and Wichita KS. In June 2020 the firm launched Heat Treat Depot, a wholly-owned eCommerce subsidiary offering new, surplus, and used thermal processing supplies, extending the distribution model beyond direct field sales into self-serve purchasing for maintenance and heat treat personnel.

Revenue generation rests on three pillars: professional field services (quote-based multi-year contracts with per-visit engagements), consulting and audit support (notably Nadcap, Boeing, and CQI-9 advisory), and hardware sales of consumables, instrumentation, and replacement parts via the HTSU website and the Heat Treat Depot platform. The firm operates with 11-50 employees, is privately held with no disclosed outside investors, and is led by a small executive team headed by President Kyle Favors, who also serves as President of the aligned manufacturer-rep firm CF Thermal Inc. Pricing is quote-based with multi-year contract terms available, and 24/7 emergency service is offered across the service book.

Name

Heat Treating Services Unlimited

Legal name

Heat Treating Services Unlimited Inc.

Website

https://htsu.com

Company type

Private

Founded year

1998

Operating status

Operating

Headcount range

11–50 employees

Short description

Heat Treating Services Unlimited (HTSU) is a private US-based thermal processing services firm providing accredited calibration, pyrometry, refractory, and combustion tuning for industrial furnace operators in aerospace, automotive, and general manufacturing across North America.

Ownership category

akta.pro rank

Product category

Industrial Heat Treatment Services

NAICS

Metal Heat Treating (332811), Heating Equipment (except Warm Air Furnaces) Manufacturing (333414), Industrial Process Furnace and Oven Manufacturing (333994)

SIC

Services-Testing Laboratories (8734), Heating Equipment, Except Electric & Warm Air Furnaces (3433), Industrial Process Furnaces & Ovens (3567)

akta.pro primary industry

Boilers, Furnaces & Process Heating Equipment (IMAHAKAD)

akta.pro secondary industries

Furnace Repair & Maintenance (HSAOAHAE), Thermostat Repair, Calibration & Controls Service (HSAOAHAI), Heat Transfer Equipment (Heat Exchangers, Boilers, Condensers) (IMAHAEAC)

Keywords

• Thermal processing services
• Instrumentation calibration services
• Heat treat equipment maintenance
• Metrology laboratory services
• Industrial furnace services

Headquarters

HQ city

Simpsonville

HQ country

United States

HQ region

North America

Offices5 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Infrastructure, Supply Chain, Marketing or Sales

Revenue model

1. Field Services: On-site services including instrumentation calibration, temperature uniformity surveys/profiles, NFPA inspection programs, system accuracy tests, combustion tuning/optimization, refractory installation and repair, and process control systems. Revenue generated through service contracts and per-visit engagements.
2. Consulting Services: Thermal processing consulting including capital projects, safety programs, data collection, technology updates, preventative maintenance programs, and audit support for Nadcap, Boeing, and CQI-9 requirements.
3. Heat Treat Depot eCommerce: Online sales of thermal processing supplies including new, surplus, and used products through their dedicated eCommerce platform heattreatdepot.com.
4. Thermocouples and Instrumentation Products: Sales of thermocouples (expendable, SAT/TUS, non-expendable, MgO, CQI-9 standard, NFPA standard, Boeing standard), industrial heaters, chart paper/pens, analyzers, survey wire, flame safety control systems, and gas trains.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels7 records

Core offering

Heat Treating Services Unlimited (HTSU) delivers field-based thermal processing services—including pyrometry, refractory installation and repair, instrumentation calibration, combustion tuning, NFPA inspection, system accuracy testing, and compliance consulting—for manufacturers operating heat-treat and brazing furnaces. The company complements these services with sales of related thermal processing supplies (thermocouples, industrial heaters, instrumentation, analyzers, flame safety controls, gas trains) and operates an ISO/IEC 17025:2017 accredited Metrology Lab plus the Heat Treat Depot eCommerce platform.

Product overview

Heat Treating Services Unlimited (HTSU) is a global field services and accredited testing and calibration laboratory specializing in the thermal processing industry. The company offers a portfolio of core products (thermocouples, industrial heaters, instrumentation, analyzers, survey wire, flame safety control, and gas trains) complemented by an eCommerce platform called Heat Treat Depot. Services include instrumentation calibration, temperature uniformity surveys/profiles, system accuracy tests, NFPA inspection programs, refractory installation and repair, process control systems, combustion tuning/optimization, and consulting. HTSU operates an ISO/IEC 17025:2017 accredited Metrology Lab for calibrations and repairs. The company was founded in 1998 and serves customers throughout North America, Latin America, and Europe.

Differentiator

Problem solved

Functional benefit

Brands

• Heat Treat Depot: eCommerce platform dedicated to the Heat Treat Industry offering new, surplus inventory and used thermal processing products from thousands of manufacturers.

Products and services

• Instrumentation Calibration
• Temperature Uniformity Surveys / Profiles
• System Accuracy Tests
• NFPA Inspection Programs
• Refractory Installation & Repair
• Process Control Systems
• Combustion Tuning / Optimization
• Thermal Processing Consulting
• Metrology Lab (Instrument Calibration and Repairs)
• Heat Treat Depot (eCommerce Platform)

Quantifiable outcome

• Energy savings of 5-25% with properly tuned gas train systems
• +2 more outcomes

Segments3 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• CF Thermal Inc.coreStrategic or Co-development PartnerCF Thermal Inc. is a sister sales company to HTSU. As President, Kyle Favors represents both companies, positioning CF Thermal as a manufacturer's rep company representing top manufacturers of thermal processing equipment in the industry.

Scale indicators6 records

Recent moves8 records

Expansion highlights5 records

Broad incumbents

• Seco/Warwick: Global thermal-processing equipment manufacturer (furnaces, ovens, vacuum systems) with aftermarket service capabilities. Adjacent incumbent whose service organization competes for the same compliance-driven work HTSU performs.
• Ipsen: Major industrial furnace OEM serving aerospace, automotive, and commercial heat-treat customers. Comparable end-market overlap and adjacent aftermarket/calibration services that compete for HTSU's customer wallet.
• Bodycote: World's largest commercial heat-treatment services provider with hundreds of furnaces globally. Directly comparable to HTSU's pyrometry, calibration, and process-control service portfolio, but at vastly greater scale and geographic breadth.

Direct peers

• Solar Atmospheres: US-based commercial vacuum heat-treating services provider with multiple facilities serving aerospace, medical, and industrial customers. Comparable customer profile (aerospace Nadcap focus) and overlapping calibration/compliance services.
• Trescal: Global ISO/IEC 17025 accredited calibration services provider. Comparable accredited metrology lab and on-site calibration services for industrial customers including thermal-processing instrumentation.
• Transcat: Public calibration services company with ISO/IEC 17025 accredited labs. Comparable calibration laboratory business and similar eCommerce-style distribution of test instruments, though Transcat operates at materially larger scale.
• Paulo Products: Commercial heat-treating and brazing services company serving automotive, aerospace, and industrial customers across the Midwest and South. Comparable vertically-segmented customer base and overlap in metallurgical/heat-treat services.

Emerging players

• Nitrex: Provider of nitriding/nitrocarburizing furnace technology and turnkey heat-treat services. Overlaps with HTSU's thermal-processing customer base and supports compliance-driven process work for automotive and industrial customers.
• Harper International: Specialty industrial furnace and thermal-processing systems manufacturer. Adjacent peer that supplies equipment into the same advanced-materials/heat-treat customer base HTSU services, with overlap in process-engineering expertise.

Regional players

• East Side Heat Treat: Midwestern commercial heat-treat services company. Comparable service portfolio (heat treating, brazing, metallurgical lab) but with a more regional footprint focused on the Upper Midwest, overlapping HTSU's Detroit-adjacent customer base.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/htsuinc
• YouTubeyoutube.com/channel/UC5RMjp7WwT537T4IprdvJGQ
• Facebookfacebook.com/HTSU.INC
• LinkedInlinkedin.com/company/601562?trk=prof-0-ovw-curr_pos

Compliance11 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Heat Treating Services Unlimited