Travel / Polish Travel Agency - private tours with guides and pick up from hotels [7]

Hello, I am traveling to Poland in summer, 2016. I am trying to put the trip together on my own. There will be 3 of us in my group. I want to set up some private tours for our group. For example, when we are in Krakow, I would like to set up a tour of Auschwicz. I was hoping to find a guide that would pick us up at our hotel in Krakow, take us to Auschwitz and Birkenau, serve as a guide during the tour, and drive us back to our hotel in Krakow. When we are in other cities, we would like to hire a guide to take us around that particular city. Does Poland have some type of national travel bureau/agency that provides these types of services for different cities? Any info you can give me would be appreciated. Thanks.