Marketing, Advertising & BrandingGain Theory launches report on Proving Sponsorship ValueGain TheoryApril 8, 2025April 9, 2025 by Gain TheoryApril 8, 2025April 9, 202509 Global marketing effectiveness consultancy, Gain Theory, today released a new report ‘Prove Your Sponsorship Value: A Measurement Guide for Marketers’, providing brands with a six-step...