Finance & Professional Services

Online Advertising: Market Size, Growth & Forecast to 2030

The Online Advertising market is valued at about $595 billion (2026) and is projected to grow at a 11.6% CAGR through 2030. The largest cost driver is Technology Infrastructure and Cloud Hosting (35% of spend). North America leads demand at 40%.

Market size
$595.0 bn (2026)
CAGR to 2030
+11.6%
Buyer power
Favours buyers
Tracked suppliers
45
Projected market growth (index, 2026 = 100)
Base year 2026
Official data · Claight projectionForecast
Market size index, 2026 = 100, at the 11.6% CAGR.
Forecast
2026
2027
2028
2029
2030
2031
2026 base: 1002031 est: 173

Cost structure

Technology Infrastructure and Cloud Hosting
35%
Publisher Payouts and Traffic Acquisition Costs
30%
Engineering and Product Development Personnel
20%
Sales, Marketing, and Operations
10%
Data Acquisition and Compliance
5%

Regional demand split

North America demand
40%
Asia Pacific demand
30%
Europe demand
20%
Rest of world demand
10%

Key suppliers

Alphabet Inc.Meta Platforms, Inc.Amazon.com, Inc.Microsoft CorporationTikTok (ByteDance)The Trade Desk, Inc.
Read the full Online Advertising report →

Claight market analysis of proprietary and public data. Full report: /category-intelligence/online-advertising