Depending on your price range and tastes, there are many that provide.  

I do, and I'm in Chicago proper.  On the north side. I have a private incall or am willing to do outcalls. Lots of my reviews mention the service.
Elle Solo offers, and she has lots of incall/outcall options.
Sage is in the NW burbs, and has a private incall.
Eva Godiva offers outcalls to lots of different places, but i don't know if she has an incall.  

You will definitely have your pick!

Hi dear,
I visit Chicago and offer an amazing and tantalizing array of assplay and stimulation. I'm not sure if you are looking for a Prostate massage or strap-on play or simply to get teasingly fingered while you get a blowjob, but I'm game for all of it. Do make sure your crevices are nice and squeaky clean, too, because I love to eat ass as a prelude to getting inside of it.

Please have a look at my site and my reviews. Send an email if you'd like to hear about my next visit to Chicago.
xoxox
Tori