Who do I hire to configure a camera system for my budding small business?

I just need a company to help me make sure my wireless cameras are configured correctly, they're storing data the right way, and they're sitting on their network correctly so they don't interfere with my POS system. I don't have a ton of money, and when I google for IT contracting services in my area I get a lot of huge companies that do project planning and such. I think I'm just googling for the wrong things. What should I be looking for?

Thanks!