Hi @matt_ri
I am guessing the the RI in your username could be a New England state–if so I have used these folks:
http://www.testsiteservices.com/
As @hfiennes said, you are much better off having your ferrites and caps already in place on your board before you go for testing. A roll of copper foil tape can be useful too–in my case the plastic enclosure with nickel spray shielding on the inside worked great except at the ends where we need a little redesign.