CHICAGO--(BUSINESS WIRE)--InnerWorkings, Inc. (NASDAQ: INWK), the leading global marketing execution firm, today announced Eric D. Belcher, Chief Executive Officer, will participate in the following investor conferences: Barrington Research Spring Investment ConferenceChicago, ILMay 25, 2016 Craig-Hallum Institutional Investor ConferenceMinneapolis, MNJune 1, 2016 Jeffrey P. Pritchett, Chief Financial Officer, will also participate in the Craig-Hallum Institutional Investor Conference as well a