Many clients trust
OEC with their laboratory needs, including:| Agilent Technologies | Kerr-McGee | |
| BC Laboratories | Plains Exploration & Production | |
| Central Coast Remedial Resources | Santa Barbara County APCD | |
| City of Santa Maria | THUMS | |
| ChevronTexaco | Unocal | |
| ConocoPhillips | URS | |
| Earth Tech | ||
| Earth Systems |
