| Business | Phone |
| Daimler Chrysler Research-Tech 3300 Industrial Blvd # 800, West Sacramento 95691 | (916) 375-0377 |
| Ares Laboratories 3480 Industrial Blvd, West Sacramento 95691 | (916) 372-5911 |
| Honda R & D 3300 Industrial Blvd # 600, West Sacramento 95691 | (916) 375-7151 |