| Business | Phone |
| Advanced Stent Technologies 6900 Koll Center Pkwy # 415, Pleasanton 94566 | (925) 931-9990 |
| Assay Technology 1252 Quarry Ln, Pleasanton 94566 | (925) 461-8880 |
| Christy Manufacturing Corp 1228 Quarry Ln # F, Pleasanton 94566 | (925) 462-7982 |
| Deltatrak Inc 3922 Valley Ave # 398a, Pleasanton 94566 | (925) 426-6831 |
| Ecologically Sound Medical Svc 7034 Commerce Cir # F, Pleasanton 94588 | (925) 734-0843 |
| Hitachi High-Tech Of Amer Inc 5100 Franklin Dr, Pleasanton 94588 | (925) 218-2800 |
| Immunoscience Inc 7066 Commerce Cir # D, Pleasanton 94588 | (925) 460-8111 |
| Interson Corp 7026 Koll Center Pkwy # 201, Pleasanton 94566 | (925) 462-4948 |
| Massie Research Laboratories 5775 W Las Positas Blvd # 200, Pleasanton 94588 | (925) 463-7984 |
| Thoratec Corp 6035 Stoneridge Dr, Pleasanton 94588 | (925) 847-8600 |
| Tyco Healthcare Mallinckrodt 4280 Hacienda Dr, Pleasanton 94588 | (925) 463-4000 |