Electronics Contract Manufacturing
to Harness your Innovation

With over 25 years of serving manufacturers of all sizes covering a broad range of industries, Thermtrol can solve your wiring harness and custom electrical assembly needs.

We specialize in electronics contract manufacturing to your unique specifications, and our product portfolio and list of capabilities continues to grow with customer requirements. With our global footprint and local support, we have approach and manufacturing facilities in the US and Vietnam Thermtrol can produce what you need, where and when you need it.

Our flexible production schedule can be tailored to your product, and our dedicated manufacturing cells with self-directed work teams can provide added security if your project demands. We use leading edge design technologies that integrate seamlessly and develop manufacturing plans to deliver high quality electronics products. Just think of us as your own in-house product development team.

Your Products Are Our Products.

As a leading producer of wire harness and over molded products, we possess the broad capabilities to mold virtually anything and engineer the harness solutions that our customers’ require.

Turnkey Solutions for Industries Served

Thermtrol has become a leading manufacturing partner to customers across a broad range of markets, with a focus on delivering unmatched service and the full spectrum of electronics manufacturing capability and products to the following industries:

  • Mirrors
  • Automotive
  • Agriculture
  • Commercial vehicles
  • Diesel engines
  • Specialty lighting
  • Pumps
  • Motors
  • HVAC
  • Food processing
  • Medical
  • Industrial equipment
  • Communications
  • Defense
  • Marine
  • Appliance

Let's talk about capabilities

Thermtrol has become a leading manufacturing partner to customers across a broad range of markets, with a focus on delivering unmatched service and the full spectrum of electronics manufacturing capability and products to the following industries:

Order Size

From short run specialty production to high volume commercial automotive, Thermtrol has you covered.

Complexity & Range of Wiring

Specializing in custom applications from light duty lead wire to heavy duty cable assemblies and precision wire harness.


Thermtrol has comprehensive overmolding capabilities ranging in wires and simple grommets to complex large volume stampings.

Control Panels

Solutions for one or two circuits or dozens of relays, wires, controls.

Client Size

Thermtrol has experience developing solutions for a large variety of businesses – from small firms that dominate their industrial niche to tier-1 automotive manufacturers.

We take great pride in our world-class manufacturing facilities and products.

Manufacturing Facility, Ho Chi Minh City

Our 100,000 sq. ft. production facility in the heart of Vietnam

Thermtrol’s quality philosophy of a working partnership for exceeding customer expectations has been incorporated into all aspects of our business.

Thermtrol Corporation is strongly committed to providing wire harness and electromechanical assemblies that exceed your expectations. To accomplish this, quality has been incorporated into all aspects of our business. This quality philosophy assures the highest value and satisfaction for both you and our employees. We produce and deliver products that provide optimal functionality with a passionate focus on your needs and desires.

The concept of continuous improvement is a key element in the Thermtrol way of doing things and is embraced by the company owners, management and employees, as well as our external suppliers. This concept benefits both you and Thermtrol by assuring your satisfaction, reducing cycle times and costs, and eliminating errors and re-work.

The Thermtrol Quality Management System embodies the two following concepts and serves as guidance on how we achieve our goals.

Get it right first time, every time and exceed your expectations.

We achieve this by structured Advanced Product Quality Planning (APQP) that defines and establishes the steps necessary for assuring the product satisfies you by facilitating communication with all involved. This APQP process then translates into our expertise in Design for Manufacturability (DFM). DFM focuses on cost-effectiveness, simplification, optimization, and mistake proofing.

Create a consistency of purpose between our organization and you.

Our QMS structure and processes inspire a sense of mission and purpose throughout our entire organization. Every individual has ownership in quality; this is supported by goals and objectives that are specific, measurable, achievable, realistic, and time-based (SMART). Our Quality Management System (QMS) is certified to the internationally recognized standards of ISO 9001 (since 2000) and IATF16949 (since 2019).

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Learn more about our Commitment to Quality
Assembly Line Production This short video of one of our assembly lines is an example of Thermtrol’s lean manufacturing processes and quality standards that are in place every step of the way. From the start with the Push-Click-Pull test jigs, to the Poka-Yoke assembly test fixtures, to the finishing continuity test ensuring that every circuit is 100% tested on the line.
Push-Click-Pull Testing Manufactured and designed in-house by Thermtrol engineering; the Push-Click-Pull test fixture is incorporated into the wire harness production line to insure that every terminal is properly seated into the housing. This is one part of insuring our customer receives the highest quality every time.

Purchasing Economies and Cost Efficient Labor

Southern Vietnam is a rapidly growing industrial area with world class manufacturing of many electric components. Thermtrol’s location to local and regional suppliers and factories producing complementary products, teamed with our established in-house expertise, allows us to offer an attractive value proposition for all types of assembly. Our customers in the appliance, commercial vehicle, industrial and agricultural equipment industries rely on Thermtrol for their needs.

Engineering and Development Assistance

Thermtrol supports all phases of design and engineering of new wire harnesses
and over molded products.

There are three major steps in development

  1. Step 1
    Conceptual configuration to determine the relative dimensions needed.
  2. Step 2
    Pre-production design proof of the proper form to be used in manufacturing.
  3. Step 3
    Manufacturing and pre- production test-runs to support testing and prove manufacturing process prior to full-scale production.

In addition, we offer timely and cost-effective evaluation of your existing or planned custom wire harness assembly and overmolding needs. Thermtrol customers rely on our engineering assistance to redesign components and help them maximize product reliability, simplify installation and streamline their supply chain.

If you are interested in discussing solutions for your
business, please call us at 330-497-4148
or send us a message.