Bret Leece
Principal
At this since 1995, trained in philosophy and in analytics — which turns out to be one training.
Thirty years inside agencies, holding companies and measurement firms, building the analytics and data organizations and the software that ran inside them. Both sides of the table: the pitch that has to win, and the number that has to hold up a year later.
EVP, Client Development & Success · dentsu
2025–
Revenue and client success for the principal and proprietary media business. Data targeting and technology revenue up 70% year on year.
Managing Partner, Analytics & Research · UM Worldwide, IPG Mediabrands
2022–2023
Analytics and research across American Express, Exxon Mobil, Accenture, Dyson and Emirates. Mediabrands is now part of Omnicom Media.
Principal · Calidescope LLC
2020–
Two brands launched, one repositioned. And Throughline, the software.
Global Chief Data & Innovation Officer · Havas Media Network
2018–2020
A 20-person global team, and the identity platform underneath planning, buying and measurement.
Head of TV and Video Product · Comscore
2017–2018
Merged the television and digital product groups. Cost down 25%.
Global Chief Product Officer, then Chief Analytics Officer · Initiative, IPG Mediabrands
2010–2017
Pan-agency tools and workflow for 40-plus people, and a product integration with Google worth $7M a year.
SVP Managing Director, International · MarketShare Partners
2008–2010
Europe and Asia from London, with no case studies to point to. Renewal rate tripled, $2M new business. The marketing mix modeling practice is now TransUnion TruAudience.
Earlier
2003–2007
Ticketing and customer data across a portfolio of venues that had no system in common.
2001–2002
A merger, and no shared record of who the customer was. Built the one that worked across both halves.
Walt Disney Internet Group · The Walt Disney Company
1999–2001
Enterprise CRM and buyer-behavior models across Disney Online, Go.com, Parks and eCommerce. Personalization before it had the name.
Sprint · now T-Mobile
1995–1999
Econometric demand models for a national telecom, built before the tools existed, then the datamart to serve them. Four roles in under four years. Kansas City.
- Based
- New York. Replies within a business day.