I suggest searching for a few in your area online. There are plenty of reviews out there you could use to narrow down the search. Once you've settled on a few different companies, you could call and get quotes and choose from there. Good luck in your search! http://www.allcountyoperations.net/Services/
I have a second home that is in a rural location and it needs a septic tank. I often find that it needs service and every time that it does, I am always astounded at how much we rely on that thing. When they come to do the repair, they have to shut it down temporarily and it makes me appreciate it that much more.