| | Jonar Enterprises Inc (Greenwood, IN) Measuring tools for quality control & electro static products for electronic industry | |
| | Lasor/Systronics Inc (Norcross, GA) Quality control inspection systems | |
| | L-Ray Inc (Oxford, MI) Tire industries measuring & quality control devices | |
| | Macline Engineering Co (Rockton, IL) Quality control & automation inspection equipment | |
| | Marposs Corp (Auburn Hills, MI) Electronic gauges for quality control | |
| | Neudecker Manufacturing Co Inc (Winchester, IN) Carbide tooling & custom machinery; die work, special machinery & quality control gauges | |
| | Power Support Engineering Inc (Tampa, FL) Data room furniture & quality power control | |
| | Santec Systems Inc (Wheeling, IL) Ultrasonic quality control systems | |
| | Search Masters (Cleveland, OH) Temp & permanent employment placement of engineering, draft & design, manufacturing management, quality control & chemistry professionals | |
| | Smith Bros Heating & Cooling (Green Bay, WI) Contractor: heating, ventilating, air conditioning, energy savings humidity & air quality control | |
| | SPSS Inc (Chicago, IL) Computer software used in market research, business analysis, data mining, scientific research & quality control | |
| | Sterling Industries Inc (Chicago, IL) Thermocouples, protection tubes, temperature control systems & power quality & control systems; calibration service | |
| | Supertech Inc (Elkhart, IN) X-ray accessories, quality control devices, patient & operator protection products | |
| | Thermal Management Inc (Westmont, IL) Engineering services; firm is a designer of HVAC electronic control systems & consultant on air quality | |
| | Trenton Forging Co (Trenton, MI) Steel & statistical quality control forgings | |
