Alphabet, Meta and Amazon take a widening majority of US ad revenue
Advertising, marketing & brand · Sector 16 (rank 15 of 25) · T-16-02
Score 82.0/100 · Evidence factor 0.70 · Confidence high · triangulated · Last verified 2026-09-15
In one sentence. Madison & Wall puts the three largest platforms at 56% of US advertising revenue in 2025 (Google 29%, Meta 19%, Amazon 9%), up from 53% in 2024, with a North American 2026 figure of roughly 60%.
Why it matters
Every downstream business in this sector - agencies, DSPs, SSPs, measurement vendors - prices its services against a shrinking share of addressable spend. A media plan is now majority-allocated to three self-measuring, self-auditing environments, which is simultaneously the concentration story and the measurement story.
What is happening
Madison & Wall puts the three largest platforms at 56% of US advertising revenue in 2025 (Google 29%, Meta 19%, Amazon 9%), up from 53% in 2024, with a North American 2026 figure of roughly 60%. Everything else fell from 47% to 43% of the market. Meta's Q2 2026 advertising revenue of $59.4bn grew 27% year over year with average price per ad up 12% and impressions up 14% - the platform is taking both more volume and higher prices at the same time. Growth in the total market is not being shared: it is being absorbed at the top.
First observable signal. The Google-Meta duopoly framing dates to 2016-2017; Amazon's entry as a credible third pole became visible when it began separately disclosing advertising services revenue in Q4 2021.
Evidence
| Claim | Type | Date | Source |
|---|---|---|---|
| Google, Meta and Amazon took 56% of US advertising revenue in 2025 (Google 29%, Meta 19%, Amazon 9%), up from 53% in 2024; the rest of the industry fell from 47% to 43% | estimate |
2026-09-15 | Digiday (B) |
| Alphabet, Meta and Amazon account for about 60% of North American ad revenue in 2026 (Madison & Wall) | estimate |
2026-09-10 | Digiday (Sam Bradley) (B) |
| Meta Q2 2026 advertising revenue was $59.363bn, up 27% year over year; ad impressions +14%, average price per ad +12% | fact |
2026-07-29 | Meta Platforms, Inc. (A) |
| Meta operating margin fell to 31% from 43% a year earlier on a 55% increase in costs, with 2026 capex guided to $130-145bn | fact |
2026-07-29 | Meta Platforms, Inc. (A) |
| 'They're just going to outperform the average every year... share will be a little higher every year for the next five' - Luke Stillman, Madison & Wall | opinion |
2026-09-15 | Digiday (B) |
| US digital advertising revenue reached $294.6bn in 2025, up 13.9% year over year | fact |
2026-04-16 | IAB and PwC (A) |
Where sources disagree
- Big-three share of advertising revenue — Madison & Wall via Digiday (2026-09-15): 56% of US ad revenue in 2025 vs Madison & Wall via Digiday (2026-09-10): ~60% of North American ad revenue in 2026. Likely reason: Different geography (US vs North America) and different year (2025 actual vs 2026 forecast). Same modeller, so these are not independent corroboration of each other.
Companies and products
Companies. Alphabet/Google, Meta Platforms, Amazon, Madison & Wall
Products. Google Search Ads, Performance Max, Meta Advantage+, Amazon Sponsored Products, Amazon DSP
Funding. n/a
Impact
Industry. Beneficiaries: Alphabet/Google, Meta Platforms, Amazon. Losers: Independent DSPs and SSPs, open-web publishers, media auditors whose leverage depends on transparent supply.
Consumer. Universal among advertisers of scale; the question is share of budget, not whether.
Regulatory. High and rising: the Google ad-tech remedy, the FTC's Amazon advertising suit, and the EU DMA all target exactly this concentration.
Geography. US, EU, GLOBAL
Risks and counter-forces
- Madison & Wall's share estimates are modelled, not audited, and the US and North American denominators differ
- Platform self-reported revenue mixes geographies and formats differently across companies
Counter-trends. Retail media networks outside Amazon, CTV supply expansion, AI-assistant surfaces as a fourth pole
Score breakdown
| Pillar | Score | Dimensions |
|---|---|---|
| Momentum (30%) | 90 | velocity 3 · adoption 5 · capital 5 · revenue 5 |
| Reach (25%) | 95 | breadth 5 · depth 4 · geography 5 · demand 5 |
| Durability (25%) | 100 | persistence 5 · maturity 5 · strategic 5 |
| Consequence (20%) | 80 | regulatory 5 · social 3 |
| Evidence | 70 | quality 4 · diversity 3 → ceiling 82 |
⚠ Evidence-capped. Raw score 91.8 reduced to 82.0 by the evidence ceiling. The magnitude may be real; the sourcing does not yet support asserting it.
Stage mature · Direction accelerating · Horizon Immediate (0–12 months) · Reading: Act on it
Cross-sector themes. capital_concentration (12 linked trends in other sectors)
What to watch next
T-16-01Google keeps its ad stack: behavioural-only remedy in US v. Google (ad tech)T-16-05Measurement retreats to MMM and incrementality, and still does not drive budgetsT-16-07The independent demand-side platform stalls: The Trade Desk grows 3% in a 12% marketT-16-14Auction transparency becomes the regulatory battleground, not market structure
Sources
- Ad Tech Briefing: AI is reinforcing Big Tech's grip on advertising growth — Digiday, 2026-09-15. Tier B. https://digiday.com/media-buying/ad-tech-briefing-ai-is-reinforcing-big-techs-grip-on-advertising-growth/
- Ad spend forecasts revised upward as more ad dollars are handled by AI tools — Digiday (Sam Bradley), 2026-09-10. Tier B. https://digiday.com/media-buying/ad-spend-forecasts-revised-upward-as-more-ad-dollars-are-handled-by-ai-tools/
- Meta Reports Second Quarter 2026 Results — Meta Platforms, Inc., 2026-07-29. Tier A. https://investor.atmeta.com/investor-news/press-release-details/2026/Meta-Reports-Second-Quarter-2026-Results/default.aspx
- IAB/PwC Internet Advertising Revenue Report: Full Year 2025 — IAB and PwC, 2026-04-16. Tier A. https://www.iab.com/insights/internet-advertising-revenue-report-full-year-2025/
Generated from record T-16-02 via the canonical article template (18-editorial-formats.md). Research date 2026-09-15. Scores per 14-scoring-framework.md. Forecasts are conditional, never certainties.
- Source artifact
- 06-sample-reports/16-advertising-marketing.md
- Corpus date
- 15 September 2026
- Prepared for this site
- 16 September 2026
- Site publication
- 18 September 2026
- Verification
- Inherited; not fully rechecked