Grassley seeks answers on Ascension Illinois’ contract with private equity-backed staffing firm Ryan Voyles 6 months ago A top U.S. senator is raising concerns over Ascension Illinois’ plan to outsource services to a private equity-backed staffing firm.To access this content, you must purchase 1 Year Health News Illinois Subscription or 1 Year Group Subscription - Up to 5 Users, or log in if you are a member.