Does anyone know of a company who will give me a chance, I have a mark on my dac, i've been clean for 21/2 yrs

I am a trucker, the company I work for is ripping me off. I failed a pre-employment drug test 21/2 years ago and it went on my dac. I went through a 12 step program and have been clean ever since. Does anyone know of a company that will accept me, and not rip me off.