Margaret Molloy

Margaret Molloy is the global chief marketing officer (CMO) at Siegel+Gale, a leading global strategic branding firm, where she is responsible for all marketing and business development. Known as “the simplicity company,” Siegel+Gale helps clients define, design, and deliver brand experiences that are unexpectedly clear and remarkably fresh.

Margaret has racked up over two decades of experiences as a marketing leader. A strategic marketer with a technology DNA, Margaret has deep expertise in business-to business (b2b) marketing. She served as SVP Marketing at GLG (Gerson Lehrman Group), a leading professional learning network; led marketing organizations at Oracle (Siebel Systems); and served as VP of Marketing at Telecom Ireland US (eircom).



She is consistently recognized as one the most influential CMOs on Twitter (@MargaretMolloy) and top profiles on LinkedIn.

An award-winning marketing though leader, Margaret has been published in Forbes, Fast Company, The Economist Lean back, Wired and beyond.

Margaret earned her MBA from Harvard Business School and received her undergraduate degrees from the University of Ulster, Northern Ireland and La Universidad de Valladolid, Spain.

A native of Ireland she lives in Manhattan with her husband, economist, Jim O’Sullivan, and their sons, Finn and Emmet.