| Absolute Calibration: Independent laboratory providing calibration and repair of electrical, temperature, humidity, pressure and dimension measuring instruments. |
| ACT Laboratories, Inc.: Test panel manufacturer and independent automotive testing laboratory. |
| Analytical Services Ltd. UK: Testing laboratory, chemical and physical testing of textiles, chemical analysis of concrete, mortar and other materials. |
| Beta Laboratory: Offering calibration, analytical testing and safety training programs. |
| Bodycote Materials Testing: The laboratory operates across a wide range of industry sectors including manufacturing, engineering, pharmaceutical, environmental and consumer products. |
| Calibration Laboratory: Resistor calibration with near NIST uncertainties, pressure, electrical, dimensional, optical, infrared, temperature calibration. |
| Chicago Spectro Service Laboratory: Independent metallurgical laboratory specializing in the chemical, physical and metallurgical testing of ferrous and nonferrous materials. |
| Chicago Testing Laboratory, Inc.: Asphalt testing laboratory, providing design, testing, failure analysis, training, and litigation support. |
| Davis Inotek Instruments LLC.: Calibration services provider with labs throughout the US, mobile facilities and onsite technicians. |
| F-Squared Laboratories: An independent laboratory providing services for companies requiring US and Canadian safety approvals. |
| Farrington, Lockwood Co. Ltd.: Custom laboratory offering safety and abuse testing of batteries for compliance with international airworthiness and transportation regulations. |
| Flow Dynamics: Calibration laboratories for liquid, inert and flammable gas flowmeter calibrations. |
| Garwood Labs: Testing services include vibration, shock, temperature and humidity, nebs, climatics, product safety, emi/emc, hydraulics and pneumatics. |
| Global Certification Laboratories: Performs electromagnetic compatibility (EMC) and electrical safety testing of new products. |
| IMR Test Labs: A2LA and NADCAP accredited testing lab specializing in failure analysis, chemical, mechanical, polymer, and metallurgical testing, as well as thermal spray, environmental and cyclic corrosion. |
| Main ChB, Inc.: A2LA (17025)accredited laboratory providing customized metrology and calibration services. |
| Materials Analytical Services, Inc.: Analytical testing laboratory focusing on industrial hygiene, materials analysis, instrument service, and semiconductor analysis. |
| Municipal Testing Laboratory: Provides construction inspection and testing services. |
| Precision Repair, Calibration, Sales and Service: ISO/IEC 17025 accredited laboratory servicing the manufacturing industry with calibration, gage repair, inspection services, and equipment sales. |
| Pro-Pack Testing Laboratory, Inc.: Package testing laboratory located in Belleville, Illinois. |
| Quad City Laboratory, Inc.: Provides state of the art testing, inspection, and calibration services. |
| Radiometrics Midwest Corporation: An EMC/EMI electromagnetic compatibility engineering and testing center for domestic and international regulatory compliance. |
| Riga Analytical Lab: Offers structure characterization and material analysis using FIB. |
| Rotech Laboratories: Materials testing analysis and consultancy, offering failure investigation, scanning electron microscopy and EDS, and fastener testing. |
| TouchStone Systems and Services, Inc.: Midwest-based independent testing laboratory for automotive, aerospace and commercial industries. |
| VMS International: Australian calibration laboratories that are NATA accredited and ISO certified ensuring traceability. |
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