Senior Client Success Manager (Marketing Effectiveness)
Gain Theory
About this role
The Client Success Manager at Gain Theory is the primary client contact for marketing effectiveness engagements, focused on ensuring clients derive value from measurement products and services, with particular emphasis on Marketing Mix Modeling (MMM). The role works closely with client leadership and analytics teams to translate analytical insights into clear strategic recommendations that inform investment decisions. It reports to the Client Success Director and supports client satisfaction, growth initiatives, and high-quality delivery.
Skills
About Gain Theory
gaintheory.comGain Theory is a marketing effectiveness and foresight consultancy that helps brands make smarter, faster, data‑informed investment decisions. They combine analytics, econometrics and media-mix/attribution techniques with strategic insight and forecasting to measure and optimise marketing ROI. Gain Theory supports clients with data engineering, experimentation and planning tools so marketers can allocate budgets more effectively and predict future performance.
Recent company news
Marketing Communication NewsGain Theory, a WPP Company, Named a Leader in Marketing Measurement and Optimization by Global Independent Research Firm
1 month ago
Marketing Communication NewsGain Theory reveals advertising delivers nearly 3x return on investment
Jun 12, 2025
Business WireGain Theory and The Association of National Advertisers (ANA) Partner to Lead the Way in Marketing Measurement and Optimization
Mar 7, 2024
ADWEEKWPP Consultancy Gain Theory Hires Former Unilever VP as Its North American CEO
Sep 6, 2018
VMLGrowth Consulting
Jan 1, 2024
About Gain Theory
Headquarters
San Francisco, CA
Company Size
201-500 employees
Founded
2018
Industry
Technology
Glassdoor Rating
4.2 / 5
Leadership Team
Sarah Johnson
Chief Executive Officer
Michael Chen
Chief Technology Officer
Emily Williams
VP of Engineering
David Rodriguez
VP of Product
Jessica Thompson
Chief Financial Officer
Andrew Park
VP of Sales
Unlock Company Insights
View leadership team, funding history,
and employee contacts for Gain Theory.
Salary
$115k – $150k
per year