Stephen Tisdalle is chief marketing officer and senior managing director for State Street Global Advisors (SSGA), overseeing global brand and advertising, channel marketing, digital strategy and creative services. Prior to joining SSGA, Mr. Tisdalle served as senior vice president and head of marketing for OppenheimerFunds, Inc. and its subsidiary OFI Global. He was responsible for brand advertising, corporate communications and PR, digital strategy, creative services and integrated channel marketing to promote the firm's thought leadership and investment strategies across retail, high net worth and institutional channels. Before OppenheimerFunds, Stephen was managing director at Ogilvy & Mather in New York, overseeing the strategic marketing services consulting. He oversaw brand and marketing strategy, performance measurement and CRM for Ogilvy’s largest agency of record accounts such as BlackRock, Barclays, British Airways, Cisco, IBM and UPS. Prior to Ogilvy, Mr. Tisdalle served as head of Saffron Brand Consultants, managing their U.S. business and implementing major brand strategy assignments for Goldman Sachs, Bain & Company, KPMG and Swiss Re. Previously, he was strategy director for IBM Global Services, where he led the major transformation and repositioning of IBM's services business. Before IBM acquired PwC Consulting, Stephen was director, strategy and change practice.