Advertising Agencies Global Market Report 2022: Key Players WPP, Dentsu, Publicis Groupe Others Driving 10% Annual Growth - ResearchAndMarkets.com DUBLIN--(BUSINESS WIRE)--The "Advertising Agencies Global Market Opportunities And Strategies To 2031: COVID-19 Impact And Recovery" report has been added to ResearchAndMarkets.com''s offering. The global advertising agencies market reached a value of nearly $346,122.5 million in 2021, having increased at a compound annual growth rate (CAGR) of 3.6% since 2016, and is expected to grow at a CAGR of 9.8% to nearly $553,106.5 million by 2026. Also, the market is expected to grow to $890,809.0 milli