| Wentworth Laboratories Inc (Brookfield, CT)
|
| West Coast Research Corp (Santa Monica, CA)
|
| Westberg Manufacturing Inc (Sonoma, CA)
|
| Western Enterprises (Avon, OH)
|
| Western Vibration Specialists (Arvada, CO)
|
| Westover Scientific Inc (Bothell, WA)
|
| Wet Labs (Philomath, OR)
|
| Wgbm Assoc Inc (Portland, OR)
|
| Whipps Inc (Athol, MA)
|
| Whitaker Electronics (Mesquite, TX)
|
| White Inc (Houston, TX)
|
| Wibby Environmental (Golden, CO)
|
| Wichita Dyno Llc (Wichita, KS)
|
| Wide Band Engineering Co (Phoenix, AZ)
|
| Wilcom Products Inc (Belmont, NH)
|
| Wilks Enterprise Inc (Norwalk, CT)
|
| William B Johnson & Assoc (Fairlea, WV)
|
| William P Fogarty Co (Syracuse, NY)
|
| William P Nugent Co (Minneapolis, MN)
|
| Williams Hardness Tester Svc (Cleveland, OH)
|
| Williams Pyro Inc (Fort Worth, TX)
|
| Williamson Corp (Concord, MA)
|
| Wilmington Instrument Co (Wilmington, CA)
|
| Wilson (Midland, TX)
|
| Wincorp International Inc (Pomona, CA)
|
