Mark Leiter

Senior Advisor

Joined DeSilva+Phillips in 2017.

Mark Leiter is Chairman of Leiter & Company, which is a holding company for his strategy consulting and capital investment activities. His specialty is improving the performance of business-to-business (B2B) organizations that provide highly sophisticated products, services and solutions.

His core expertise is the design and development of corporate and business-unit strategy; growth and go-to-market strategy; and strategic communications for the enterprise.

During his career, Mark has worked with over 150 organizations across two dozen industry sectors. His experience spans working with pure start-up ventures through to advising corporations generating over $100 billion in annual revenues. He has approached strategy and communications as a board member, operating executive, strategy consultant, and capital investor.

Mark recently served as Chief Strategy Officer of Nielsen, an S&P 500 company with a 45,000-person team serving 20,000 corporate clients in over 100 countries around the world. He was a member of the CEO’s executive team and the firm’s executive committee.

During his tenure working with the company from 2006 through June 2016—initially as a consultant to the firm, and later as a full-time team member—Mark played a central role in shaping Nielsen’s growth and go-to-market strategy. He was part of a team that tripled Nielsen’s enterprise value from $9 billion to $27 billion.

Preceding his appointment as Chief Strategy Officer, his prior roles included: Executive Vice President on the corporate leadership team; President, Global Practices and Products for the BUY division ($3B business unit); President, North American Professional Services ($1B business unit).

His career initially focused on providing strategy consulting to blue-chip clients, primarily as a practice leader at McKinsey & Company. He served on McKinsey’s Marketing practice leadership team, where he co-founded McKinsey’s B2B Marketing and Branding practices. He was subsequently a senior partner at Cap Gemini Ernst & Young, where he served as the firm’s Chief Marketing Officer. Mark started his career at Bain & Company as a charter member of the firm’s Loyalty practice.

He is the author of Crafting Strategy in an Accelerating World: practical advice from Chief Strategy Officers operating in global, public corporations (World 50; 2018). His perspectives have been shared across media, including Bloomberg, Business Strategy Review, Consulting Magazine, The Economist, Knowledge@Wharton, and The McKinsey Quarterly.

Mark is a Distinguished Strategy Fellow at The Conference Board, where he serves as a member of The Conference Board’s Global Advisory Council and as a Global Counsellor. He is a Trustee of The Committee for Economic Development (CED). He currently serves on the Board of Directors of The VH1 Save the Music Foundation, InMoment and Quaero. Mark is a venture partner at Pereg Ventures. He is the co-founder and former Executive Chairman of The Demand Institute, which examines the evolution of global customer demand for business and government institutions.

Mark was a research fellow at Harvard Business School, holds an M.A. from Harvard University and a B.A., summa cum laude, from the State University of New York at Albany. He is based in New York.

Profile Details

Areas of ExpertiseMarketing, Technology, Data & Information
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