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| Qtronix | |
| Microsoft Corporation 1 Microsoft Way - Redmond, WA 98052 USA - - | ||
| J.R. Merritt Controls, Inc. | ||
| P Q Controls | ||
| ETI Systems | ||
| Cyber Tech, Inc. | ||
| Intuitive Control Systems LLC | ||
| Measurement Systems, Inc. | ||
| CTI Electronics Corporation | ||
| Sure Grip Controls Inc. | ||
| MGR Industries, Inc./Keymat Technology Ltd. | ||
| Logitech, Inc. - - - | ||
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