10 Biggest Companies That Drug Test

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#10 Chevron Corporation (NYSE:CVX)

Market Cap – $197.51 billion

First up on the list of the 10 biggest companies that drug test is Chevron Corporation (NYSE:CVX), which requires employees, contractors, and sub-contractor’s employees to submit to drug tests, including alcohol testing. The company also requires contractors to perform random drug testing as well as drug testing after an accident.

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