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| Columbia Research Laboratories, Inc. |   | |
| DJ Instruments |   | ||
| Entran Devices, Inc |   | ||
| Kulite Semiconductor Products, Inc |   | ||
| ME-Systeme GmbH |   | ||
| ME-Systeme GmbH |   | ||
| Vishay Measurements Group Inc. |   | ||
| Non-Linear Systems - NLS |   | ||
| Omega Engineering, Inc. |   | ||
| SMD - Strain Measurement Devices Inc. |   | ||
| ACT/Techkor |   | ||
| ACT/Techkor |   | ||
| HEAT, Inc. |   | ||
| Trilion Quality Systems |   | ||
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