| Aehr Test Systems | 424 | Magma Design Automation, Inc. | 320 |
| Antares Advanced Test Technologies | 702 | MEI | 401 |
| Ardent Concepts, Inc. | 602 | Mentor Graphics Corporation | 112 |
| ARM Inc | 92 | Micro Control Company | 302 |
| Asset InterTech, Inc. | 404 | MicroProbe | 97 |
| Azimuth Electronics, Inc. | 705 | Nano Integrated Solutions, Inc. | 605 |
| Baykal Technology, Inc. | n/a | NHK Spring Co., LTD. | 89 |
| BucklingBeam | 119 | Optimal Test | 518 |
| Cadence Design Systems, Inc. | 122 | Phoenix Test Arrays, LLC | 717 |
| Carsem | 611 | Pickering Electronics Ltd. | 831 |
| Cascade Microtech | 96 | Pickering Interfaces Ltd. | 829 |
| Centellax, Inc. | 814 | Pintail Technologies | 224 |
| CMR Summit Silicon Valley | 701 | Proligent | 935 |
| Corad Technology Inc. | 601 | Q-Star Test | 403 |
| Corelis, Inc. | 610 | QualiSystems | 816 |
| Credence | 121 | R&D Circuits | 715 |
| Dynamic Test Solutions | 607 | Reid-Ashman Manufacturing | 521 |
| EE Evaluation Engineering | 604 | Roos Instruments Inc. | 103 |
| Electroglas Inc. | 101 | Rucker and Kolls Inc. | 613 |
| ELES Semiconductor Equipment Spa | 722 | Sanyu Electric, Inc | 708 |
| ERS America LLC | 616 | Semiconductor Test Consortium | 506 |
| Evans Analytical Group | 821 | Siliconaid Solutions | 422 |
| Everett Charles Technologies | 512 | Simutest, Inc. | 719 |
| Exatron | 730 | Soto Technologies International | n/a |
| Finley Design Services, Inc. | 94 | SV Probe, Inc. | 308 |
| FormFactor | 631 | Synopsys Inc. | 212 |
| GE Fanuc Intelligent Platforms | 703 | Taconic | 95 |
| Geotest-Marvin Test Systems, Inc. | 716 | Teledyne Relays | 825 |
| GOEPEL electronic GmbH | 624 | TeraVicta Technologies, Inc. | 509 |
| Hamamatsu Corp | 810 | Teseda Corporation | 109 |
| HiLevel Technology, Inc. | 620 | Test & Measurement World | 710 |
| Inovys Corporation | 93 | Test Coach Corporation | 630 |
| Integra Technology | 726 | Test Enterprises, Inc. | n/a |
| Integrated Test Corporation | 712 | Test Insight | 412 |
| Intellitech Corporation | 218 | True Integration Manufacturing & Engineering | 111 |
| inTest Silicon Valley | 409 | Tokyo Electron America, Inc. | 823 |
| Johnstech International | 502 | TSSI | 838 |
| JTAG Technologies, Inc. | 416 | Unitechno USA, Inc. | 113 |
| Lambda Americas | 629 | Virage Logic | 115 |
| LogicVision Inc. | 314 | World Test Systems | 724 |
| M & M Specialties, Inc. | 618 | Yamaichi Electronics USA Inc | 91 |
