TROY, MI--(Marketwired - Nov 20, 2014) - Kelly Services, Inc. (NASDAQ: KELYA) (NASDAQ: KELYB), a leader in providing workforce solutions, today announced it will be participating in the NASDAQ OMX's 31st Investor Program held in association with Morgan Stanley on Wednesday, December 3, 2014 at The Waldorf Hilton in London, UK.