Area chart showing U.S. digital ad spending by company type, from 2008 to 2027 (2025-2027 projected). Meta and Google combined are projected to make up almost 50% of ad spending in 2025-2027, however that is a drop from 2017, when they accounted for 55% of spending. The share of spending from e-commerce companies like Amazon is projected to grow the most, accounting for nearly 18% of spending in 2027, compared to 0.4% in 2008.