B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
85%
85% -- share of us advertising spend directed for 4As member agencies (2025)
4As member agencies direct more than 85% of total U.S. advertising spend.
- Stated as 'more than 85%'
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
85%
Unit
Percentage
Data Vintage
2025
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
American Association of Advertising Agencies (4As)
Primary
Tier B
https://shirofune.io/news/shirofune-joins-4as ↗
Source Article
Shirofune Joins 4As, Furthering Its Commitment to the Advertising Industry
EL SEGUNDO, Calif., Feb. 12, 2025 (GLOBE NEWSWIRE) -- Shirofune, the leading platform for digital advertising automation, is proud to announce its membership in the American Association of Advertising Agencies (4As), further solidifying its dedication to empowering the advertising community. With th…
Original Research
American Association of Advertising Agencies (4As)
· Original study ↗
Methodology
Trade association self-reported figure (from 4As 'About' section) stating its 600+ member agencies across 1,200 offices direct more than 85% of total U.S. advertising spend; stated as 'more than,' so actual share is at least 85%.
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
4As member agencies: 85% share of us advertising spend directed. Source: American Association of Advertising Agencies (4As) (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/4as-agencies-us-ad-spend-share-2025
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<blockquote cite="https://lighthousedata.io/data/4as-agencies-us-ad-spend-share-2025" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>85%</strong> -- share of us advertising spend directed for 4As member agencies<br><small>Source: American Association of Advertising Agencies (4As) (2025) · <a href="https://lighthousedata.io/data/4as-agencies-us-ad-spend-share-2025" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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