Top 6 Advertising companies in United Kingdom
This curated ranking covers the 6 largest advertising companies in United Kingdom, ordered by estimated audience size from Rascasse's anonymized search-behavior signals. Saatchi & Saatchi, Ogilvy & Mather and AdMob lead the list with a combined estimated audience of 325,322 people. Across all 6 entries the average audience size is 56,933, and the largest, Saatchi & Saatchi, reaches around 232,352 people in United Kingdom. Audience size is the estimated number of unique people in United Kingdom who actively engage with each advertising company, derived from search demand signals. Rankings reflect search-behavior signals collected across United Kingdom and are refreshed weekly.
Ranking
| Rank | Name | Audience size | Country share | Subtype | Category |
|---|---|---|---|---|---|
| 1 |  Saatchi & Saatchi |
232,352 | 49.2% | Advertising company | Business & Career |
| 2 |  Ogilvy & Mather |
53,842 | 8.0% | Advertising company | Business & Career |
| 3 |  AdMob |
39,128 | 3.4% | Advertising company | Business & Career |
| 4 |  DDB Worldwide |
10,350 | 28.4% | Advertising company | Business & Career |
| 5 |  BBDO |
5,896 | 3.2% | Advertising company | Business & Career |
| 6 |  TBWA Worldwide |
33 | 0.1% | Advertising company | Business & Career |
Frequently asked questions
How is this Top 6 list compiled?
Rascasse aggregates anonymized search-behavior signals across United Kingdom and ranks each advertising company by its estimated audience size. Only entries with at least 5 measured entities are listed.
How often is the list updated?
The ranking is refreshed weekly from the latest search-behavior data and re-published as a static page.
What is the largest advertising company in United Kingdom?
Saatchi & Saatchi currently leads with an estimated audience of 232,352 people in United Kingdom.
Methodology
Audience sizes are estimated from anonymized search-behavior signals across United Kingdom. Lists below 5 entries are not published. See methodology for full details.