B
Evidence Grade B
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accuracy verified by the review judge
Safe to Cite
Recent
25,495
25,495 -- active agency count for UK marketing, advertising, creative and media agency sector (2025)
There are 25,495 agencies active in the UK marketing, advertising, creative, and media agency sector according to Agency by Agency.
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Lighthouse Research Team
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Source verified
Evidence graded
Value
25,495
Unit
Count
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
Agency by Agency
Primary
Tier B
http://kellymolson.co.uk/the-rise-of-small-independent-agencies-with-tom-salmon/ ↗
Source Article
The rise of independent agencies with Tom Salmon
The rise of small independent agencies with Tom Salmon
In this episode of Lifestyle is a Plan, I’m joined by Tom Salmon, Co‑Founder of Agency by Agency, which provides data and intelligence to the UK’s marketing, advertising, creative and media agency sector.
Its mapping and insights on 25,500 UK ag…
Original Research
Agency by Agency
· Original study ↗
Methodology
Agency by Agency mapping dataset described as the only comprehensive dataset of UK agencies; referenced alongside Spring 2025 Industry Report
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
UK marketing, advertising, creative and media agency sector: 25,495 active agency count. Source: Agency by Agency (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/uk-agency-sector-count-2025
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<blockquote cite="https://lighthousedata.io/data/uk-agency-sector-count-2025" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>25,495</strong> -- active agency count for UK marketing, advertising, creative and media agency sector<br><small>Source: Agency by Agency (2025) · <a href="https://lighthousedata.io/data/uk-agency-sector-count-2025" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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