The world’s largest advertisers are spending more than ever, even though their brands are already household names. Amazon, Procter & Gamble, and Progressive Insurance dominate their categories, yet their marketing budgets continue to rise. New research from Stanford reveals why staying visible matters more than staying dominant.
Record Spending Levels
According to Ad Age, the top 50 global advertisers increased combined spending to $291 billion in 2025, a 6.6% jump from the previous year. These figures reflect a strategic choice: leading companies are investing heavily in consumer attention, brand strength, and market share. Amazon alone spends roughly $21 billion annually on advertising, while L’Oréal allocates $15.2 billion, LVMH $10.6 billion, P&G $9 billion, and Progressive Insurance a record $4.5 billion.
Critically, advertising expense is a separate line item from total revenue. Confusing the two overstates what brands actually spend on marketing. The spending is deliberate, recurring, and essential for maintaining mindshare.
The Science of Consumer Memory
A field experiment by Stanford Graduate School of Business professor Navdeep Sahni shows that a single auto insurance ad raised the likelihood of a website visit from 0.2% to 0.8% — a 300% jump. More importantly, while competitor traffic held steady on the day the ad ran, the next day competitors lost 11% of their visits. That loss closely matched the advertiser’s gain.
Sahni describes this as a combative environment where one brand’s pause becomes another brand’s opening. Consumer memory fades within days, not months. Recognition without recent advertising offers weak protection against a rival’s timely campaign.
Why Budgets Keep Rising
Several forces drive continuous ad spending:
- Competitive interference: Silence creates room for rivals to gain ground.
- High stakes in insurance: Auto insurers each spend over $1.5 billion annually to stay top of mind.
- Retail media networks: These connect ad spend directly to purchase behavior.
- Consumer goods habits: Repetition sustains daily buying decisions.
- New launches: Even household names need introduction for new markets or products.
Sahni also found that competitor television advertising in the weeks before an experiment made the tested ad more effective, not less. Rival spending raises the stakes for everyone in the category.
Advertising as a Defensive Investment
The data makes one point clear: advertising has moved beyond a seasonal push and become a standing operating cost for global brands. Companies that already dominate commit billions not from habit, but from measurable evidence that consumer memory rewards recent presence over past reputation.
Business leaders reviewing marketing budgets should treat advertising as a defensive investment rather than a discretionary growth expense. Brands that pause risk losing recall faster than they can rebuild it. In a market where attention resets within days, staying visible costs far less than fading from memory.