About Comark

Comark is a leading provider of highly reliable edge computing, ruggedized computer and display solutions for mission critical automation and control applications around the world.

Backed by over 41 years experience and an impeccable track record, Comark delivers design excellence in off-the-shelf and custom engineered solutions for applications across the industrial and building automation space.

Comark History

  • Founded in 1974
  • Sept. 2013 - JMC Capital Partners acquires Comark
  • June 2014 -  Comark acquires Nematron
  • Oct. 2014 -  Comark expands it's footprint to Milford, MA, with an additional 60,000 sq. ft. of space
  • Dec. 2014 - Comark acquires Total Control Solutions (TCS)
  • July 2017 - Comark acquires Data Ltd. Inc. (DLI)

Wide Breadth of Industrial Products

With the addition of these companies, Comark can now offer customers in the Industrial Automation, Fire & Life Safety, Building Automation, and Military markets a comprehensive selection of industrial edge computing and display products that will allow them to deploy automation solutions that will improve their businesses.

Our Commitment

Our goal is to design and manufacture products with a 5 to7 Year product support path, depending on the product. We pledge our support to our customer’s success by designing products that will have an available upgrade path to ensure your mission is achieved. We’re here for the long haul and vow to be able to service your product. We have over 41 years of dedicated customer service and technical support experience and look forward to supporting your application requirements. Contact us for application, product or after sales support at 1-800-280-8522.

Comark's industrial computers and displays are built to work reliably in environments where other machines fail.

Comark is a world-class provider of smarter automation solutions and IIoT platforms for the industrial and building automation markets. With a proven track record of innovative designs and unparalleled reliability, Comark enables companies to implement automation strategies to improve the performance of their business.

Our Process

We at Comark are focused on fully meeting and exceeding the needs of our customers and we believe the way to do this is to be a continuous improvement focused company.  Every day we think about four metrics:  Safety, Quality, Delivery, Cost. 

  • The safety of our employees is foremost.  We continually ensure that they have the right training, tools, equipment and that their work area is organized and clean so that they can do their job safely. 
  • We are ISO 9001 Certified with a comprehensive quality management system to ensure that the quality of our products exceeds our customer’s expectations.
  • We are focused on meeting our customer’s on time delivery expectations.  In addition, we also are able to offer different levels of products with different lead-times. 
  • At the end of the day, we must keep our costs in check so we can remain a healthy ongoing business and continue to support our customers.  

Through our continuous improvement philosophy we are able to provide our customers with the best value products that lower their Total Cost of Ownership over the life of the product.



Our dedicated R&D group provides in-depth product testing, new product design, and part qualification. Comark has the equipment, facilities, and experience to design solutions that operate reliably in tough conditions where dust, dirt, water, extreme temperatures, high shock, and vibration are part of everyday operations.

  • Bonding of EMI Glass and Touchscreens, UV cured to LCD Panels to reduce fogging and improve contrast ratio and clarity by the reduction of secondary reflections and index matching
  • Solidworks 3D Modeling reduces design time while optimizing product releases
  • OrCad Schematic Capture and PCB Layout for all electrical designs
  • Thermal Analysis for extreme high and low temperature testing
  • On-site EMI Chamber and full environmental testing
  • Shock and Vibration Lab for in-house product qualification
  • Rapid Prototype Capability

Comark provides highly reliable and trusted industrial display and industrial computer solutions for mission-critical automation, IIoT platforms and fire and life safety applications around the world. Our offerings include rugged desktop, rugged panel PC, node PCs and rugged 2U and 4U rackmount computer solutions, as well as mobile solutions including rugged tablet PC, PDA and vehicle mounted computers. We offer a wide range of options for an industrial touch screen computer, including a panel mount touch screen monitor that is fully enclosed for protection from washdown sprays. We are a leading provider of marine computer solutions for cruise ships and maritime boats, and we offer certified military displays, military grade tablet PC, military panel PCs and military node PCs equipment.

Our Brands

We provide reliable, innovative, and smarter automation products tailored to each customer's specific needs and requirements under the Comark and Nematron brand names.

In June 2014, Nematron Corporation was acquired by Comark. This strategic acquisition strengthened Comark’s position in the industrial automation market with both an established product line and distribution channels.   Nematron’s highly engineered products are primarily focused on the severe and hazardous industrial automation markets and carry a number of 3rd party approvals required to participate in this space.   Nematron’s operations have been fully integrated into Comark’s Milford, MA headquarters.

Going forward, Comark will retain Nematron as our brand primarily targeted at severe and hazardous industrial automation applications.

In December 2014, Total Control Solutions (TCS) was acquired by Comark.  This strategic acquisition bolstered Comark’s capabilities to custom design industrial computers to meet the specific needs of OEM’s in the industrial automation market.  TCS’s operations have been fully integrated into Comark’s Milford, MA headquarters.

Going forward TCS will be rebranded with the Comark brand, while retaining all of the former capabilities TCS offered.

In July 2017, Data Ltd. Inc. (DLI) was acquired by Comark. The combination of Comark and DLI brings the consolidated customer base an industry-leading choice of industrial computing solutions. DLI’s mobile computing technology is a perfect complement to Comark’s high-value, rugged and reliable industrial computing solutions. The expanded product line will benefit Comark and DLI customers who are looking for compact, innovative and ruggedized solutions.  Click here to learn more.

In January 2020, COMARK acquired the Patrol Data Rugged Mobile Data Terminal product line. This strategic acquisition bolstered COMARK’s rugged in-vehicle mobile capabilities. COMARK’s Patrol Data 12 brand product is engineered to maintain peak performance levels in the harshest of in-vehicle environments. Click here to learn more

To ensure your devices can operate safely in the conditions your workforce faces, Comark custom engineers and manufactures products with the appropriate certifications for your specific environmental needs. If you have a condition that is not covered here, let us know so we can secure the certifications needed to keep you successful in any extreme or hazardous environment.


FCC Marking (U.S.)
This certifies that the electromagnetic interference (EMI) from the device is under limits approved by the Federal Communications Commission (FCC). The FCC marking is for any product that can emit more than 9 kHz. These can include power adapters, IT equipment, Bluetooth devices, wireless local area networking equipment, remote control transmitters, and other devices. These are tested to see if they may cause interference with other equipment.

comark fcc emi communications certification

UL 60950 (International)
This specification from Underwriters Laboratories (UL) applies to AC/DC power supplies and DC/DC converters for telecommunication terminals, network infrastructure, and related equipment. The UL 60950 standard sets out design rules for insulation materials and safety spacing’s and setting AC mains over-voltage level with the intention of reducing risks of fire, electric shock, or injury.

comark ul 61010 certification electrical equipment industrial power supplies

Fire & Life Safety

ATEX Zone-2/22 approval certificate (EU)
This classification for Zone 2 refers to safety in settings such as a chemical or petrochemical plant where there is a larger risk of explosion during routine operations. Zone 22 refers to settings where dust is a factor in combustion, such as food processing plants, where powdered food substances that are easily ground may ignite more easily. The standard qualifies that an explosion is not likely to occur for equipment under this designation but, if it does, it will be for a short period of time only.


CE Marking Compliance (EU)
This marking is a self-declaration that products conform to European standards related to health, safety and environmental legislation that aims to ensure products will not endanger life or property. Products where the CE marking is relevant include medical devices, construction products, machinery, electrical equipment, personal protective equipment, radio and telecommunications terminal equipment, equipment and protective systems for use in explosive atmospheres, non-automatic weighing instruments, and toys, among others.

comark ce certification compliance eu

EN50155 Certification (International)
This standard requires systems on rolling stock (typically railways) be able to operate between -40°C and +85°C and adheres to shock and vibration requirements, power supply requirements, electromagnetic compatibility requirements, and noise levels. This means that systems must implement design practices, such as environmental testing, electrical testing, and vibration testing, that guarantee these locomotive systems will operate 24/7 for 30 years without failure.


IECEx International Safety Compliance (International)
The IECEx standard generally applies to equipment found in areas where flammable particles are present, such as manufacturing or processing settings such as gas stations, oil refineries, rigs and processing pants, chemical treatment facilities, paper and textile factories, grain storage areas, woodworking and metal surface grinding operations. To obtain this certification, products must undergo a monitored process by the International Electrotechnical Commission (IEC) to ensure that they meet safety requirements for these hazardous environments

comark-iecex-certification explosive

IP65/66 NEMA (International)
Ingress Protection (IP) ratings are displayed as a two-digit number. The first digit reflects the level of protection against dust; the second digit reflects the level of protection against liquids. IP65 refers to sealing effectiveness levels provided by an electrical enclosure that are "dust tight" and protected against water projected from a nozzle.


NFPA (72 (U.S.) UL 864
This specification is related to threat notifications for events such as fire, weather emergencies, terrorist events, biological, chemical, and nuclear emergencies, among others. The UL 864 standard was initially established to be the "Standard for Control Units and Accessories for Fire Alarm Systems”, but today generally follows changes in National Fire Protection Association (NFPA) 72. Chapters within NFPA 72 relevant to UL 864 cover a variety of fire safety aspects, and greatly influence fire safety product design relating to aspects like system alarm response time, notification types (visible and audible notifications), interconnected device compatibility, software integrity, and others.


UL/cUL 508/UL 61010 (Equivalent to IEC 61010) (US & Canada)
UL 61010 is a series of safety criteria for industrial controls such as test and measurement, laboratory, and process control equipment of 1500 volts or less used to start, stop, regulate, control, or protect electric motors. Performance requirements are based on hazards one could encounter while using the product, such as electric shock and burn, mechanical hazards, effects of mechanical stresses, fluid pressure and radiation, excessive temperature, and spread of fire from the equipment. This certification is determined by inspection, type tests, routine tests, and risk assessment.

comark ul 61010 certification electrical equipment industrial power supplies

UC/cUL Class I Div 2 Hazardous Locations (ANSI/ISA 12.12.01) (US & Canada)
This certification ensures safety in specific areas associated with ignitable concentrations of flammable gases, flammable liquid-produced vapors, or combustible liquid-produced vapors that are not likely to exist under normal operating conditions. It is especially relevant to the oil and gas/energy sector as well as other hazardous environments.

comark ul 61010 certification electrical equipment industrial power supplies

UL/cUL 60601 Medical Compliance (U.S. & Canada, equivalent to IEC 60601 in Europe)
This certification refers to general requirements for safety for medical electrical equipment. It provides detailed requirements for medical device labeling for the user related to safe installation, use, storage, servicing, and maintenance. It requires that product instruction explains safety-critical information such as electrical use that may not be otherwise obvious. This standard pertains to product labeling, including durability of markings, accompanying documents, instructions for use, instructions for cleaning, sterilization, and maintenance, environmental information, replacement parts information and circuit diagrams, and transportation and storage information.

comark ul 61010 certification electrical equipment industrial power supplies


ABS Type Approval based on IEC 60945 (U.S.)
This certification from American Bureau of Shipping (ABS) indicates that specific systems for military and marine offshore use have undergone design verification and manufacturing assessment to ensure they can withstand a maritime environment. This includes having moisture and corrosion resistance, shock and vibration resistance, and other features that make the product well suited for a marine environment.


MIL-STD-901-D Shock (U.S.)
This U.S. government military specification (also called a “MilSpec”) seeks to prevent high-impact mechanical shock damage to equipment mounted on ships. It helps evaluate whether equipment mounted in a ship will survive a conflict scenario where large transient shocks are created generated by collisions or explosions. This standard confirms that essential equipment can shut down as a result of an initial shock but is able to automatically restart without any repairs. The standard also specifies that non-essential equipment can fail in a shock event but does not create a hazard to onboard personnel or other, essential equipment.


MIL-STD-167 Vibration (U.S.)
The U.S. government military specification, or MilSpec, 167 Vibration designates that certified systems will not succumb to structural and functional failure during shipping, transport, and operation. This standard specifies levels of resistance to internally or environmentally generated vibration, including reciprocating machinery or lateral and longitudinal vibrations of propulsion system and shafting. These might come from propeller vibrations, when a ship’s speed and direction changes, and in rough seas.



Designed to ensure communications systems can operate in proximity to electrical and electronic systems, this U.S. government military specification outlines criteria for electromagnetic interference (EMI) and electromagnetic compatibility (EMC).


MIL-810-G - Environmental Engineering Considerations and Laboratory Tests (U.S.)
The MIL-STD-810 standard (with the current iteration known as version G) is maintained by a Tri-Service partnership that includes the United States Air Force, Army, and Navy. This standard addresses a broad range of environmental conditions that include low pressure for altitude testing; exposure to high and low temperatures plus temperature shock (both operating and in storage); rain (including wind-blown and freezing rain); humidity, fungus, salt fog for rust testing; sand and dust exposure; explosive atmosphere; leakage; acceleration; shock and transport shock; gunfire vibration; and random vibration.



ISO 9001:2015

Comark quality is driven by manufacturing excellence. And our manufacturing excellence stems from the quality system that is in place through which all assembly and testing processes are checked and verified against. The end result? Comark has one of the lowest warranty failure rates in the industry, and impeccable customer satisfaction.

Research & Development

Comark has the experience and expertise to develop custom hardware and software to support our customer’s requirements, including Electrical Engineering, Software Engineering, and Mechanical Engineering. Comark delivers R&D excellence in off-the-shelf and custom engineered solutions for applications across the industrial and building automation space, and has been doing so for over 40 years.

In-House Testing Capabilities

To ensure that our products will operate reliably in the most challenging environments, Comark maintains in-house environmental testing laboratory equipment that is also supplemented by outside resources, as required. In-house testing includes temperature & humidity, vibration and EMI.


Comark products are assembled in Milford, Massachusetts in our 60,000 square foot facility. Every aspect of our manufacturing process - from inventory management to parts obsolescence to assembly and testing - is carefully planned and then executed with precision.

Comark Quality Policy

Click here to download the quality policy  

Comark Quality Manual

Click here to download the quality manual  


For more information, contact us at [email protected]

Comark Suppliers

Our suppliers are a critical component of the business value stream in satisfying the end customer. It is our goal to engage in suppliers that provide value by providing top quality product and services, on time and to a competitive market price.

We are an ISO 9001 Certified Company and have processes in place to qualify suppliers and measure on-going performance. All suppliers are responsible to flow all Purchase Order requirements to sub-tier suppliers as required and as applicable.

Due to the competitiveness of the industrial ruggedized edge computer market, suppliers are highly encouraged to continuously improve their processes in order to drive down product cost which can be passed on to COMARK and to our end customer.

Download the "Purchase Order Terms and Conditions Document" (pdf)

Supplier Quality Clause
As of 6/29/15, all new COMARK Purchase Orders will reference our new “Supplier Quality Clause Document”. This document is available for you to download on this page of our website.

Please note that General Quality Clauses apply to all purchase orders. Special Quality Clauses shall apply as noted to specific line-items and or parts/services.

Download the "Supplier Quality Clause Document" (pdf)

Download the "Restricted and Declarable Substance Specification" (pdf)

Manufacturing & Testing

Environmental Testing

To be assured that our products will operate reliably in the most challenging
environments we maintain an in-house environmental testing laboratory that is
supplemented by outside resources as required.

  • Temperature and Humidity Testing
  • Vibration Testing
  • EMI Testing

Shock Testing

To meet MIL-STD-901D, Comark uses outside labs to perform lightweight, medium weight, and barge testing. We perform tests on major components early in the design cycle to mitigate risk at the system level. The following video shows a shock hit to a processor board filmed with a high speed showing catastrophic failure, note the highlighted battery and IC.

Research & Development

Comark has over 41 years of experience designing products for the most challenging environments. Our R&D department has the experience to develop custom hardware and software to support your requirements.

Electrical Engineering

  • Digital and Analog Circuit Design
  • PCB Layout
  • Simulator
  • Power Systems
  • System Engineering

Software Engineering

  • Windows Driver Development
  • XP Embedded Development
  • Embedded Linux Development
  • Application Development

Mechanical Engineering

  • 3D Solid Model Design
  • Thermal Analysis
  • Structural Analysis



Working for Comark

Located in Milford, MA, Comark, LLC is a stable and steadily growing company, committed to being a driving force behind our customer's success. We provide a challenging and fast-paced work environment, a variety of technologies, as well as a competitive benefits package. If you are ready to join a company where your work really makes a difference, please send us your resume.

Comark designs and manufactures high-performance, ruggedized, edge computers and displays for military and tough commercial applications. Our custom computer solutions serve several major markets including Industrial Automation and Building Automation.

Open Positions

If you are interested in applying for any other position please forward your resume for future consideration. In the subject matter of your email, please state the type of position you are interested in to.
[email protected].

Comark is an Equal Employment Opportunity employer.

To view available positions or fill out an application: