B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
78%
78% -- share of claude visible agencies for Madrid and Barcelona marketing agencies (2025)
Madrid and Barcelona marketing agencies represent 78% of Claude-visible firms despite hosting only 45% of total agencies analyzed.
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Lighthouse Research Team
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Source verified
Evidence graded
Value
78%
Unit
Percentage
Data Vintage
2025
Entity
Sample Size
340
Geography
Spain
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
Surfeo
Primary
Tier B
https://surfeo.ai/guias/aparecer-en-claude-agencia-marketing ↗
Source Article
Surfeo — AI Visibility for Your Business
How to Appear in Claude: Agencia de marketing Guide (Data from 10 Cities)
What Claude Prioritizes for Agencia de marketing Businesses
Claude's top 5 agencies—Sra. Rushmore, Doubleyou, Antevenio, Summa Branding, and Identy—share distinct characteristics absent in lower-ranking competitors. Analysis r…
Original Research
Surfeo
· Original study ↗
Methodology
Geographic analysis of Claude AI recommendations across 10 Spanish cities
Methodology documented
Segmentation
IndustryMarketing & Advertising
RegionSpain
ChannelAI-powered search (Claude)
Cite this stat
Plain Text
Madrid and Barcelona marketing agencies: 78% share of claude visible agencies. Source: Surfeo (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/madrid-barcelona-claude-visibility-78pct
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<blockquote cite="https://lighthousedata.io/data/madrid-barcelona-claude-visibility-78pct" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>78%</strong> -- share of claude visible agencies for Madrid and Barcelona marketing agencies<br><small>Source: Surfeo (2025) · <a href="https://lighthousedata.io/data/madrid-barcelona-claude-visibility-78pct" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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