The most visible marketing agencies in Europe, October 2026

October 2026 · 105 questions asked from 7 countries · ChatGPT, Google AI Overviews, Gemini and Google AI Mode · 420 answers read

Leader

Havas

2Heralded Score, range 2–4

Most cited source

clutch.co

51citations

From Google AI Mode, Gemini, Google AI Overviews and ChatGPT

Where engines disagree most

Ogilvy

1/4engines put it in their top three

Top three on Google AI Overviews, not on Google AI Mode, Gemini and ChatGPT

Brands

Search is not measured for this board yet, so it ranks on AI answers.

Rank Brand Rank change Heralded Score All AI Score trend Mentioned Recommended By engine Mentioned by Change
– Jellyfish GB Unranked Too few answers Not measured
–
  • : Unranked
0% 0% None First reading
– Kalungi US Unranked Too few answers Not measured
–
  • : Unranked
0% 0% None First reading
– NoGood US Unranked Too few answers Not measured
–
  • : Unranked
0% 0% None First reading
– Omnicom US Unranked Too few answers Not measured
–
  • : Unranked
0% 0% First reading
– Omniscient Digital US Unranked Too few answers Not measured
–
  • : Unranked
0% 0% None First reading
– Refine Labs US Unranked Too few answers Not measured
–
  • : Unranked
0% 0% None First reading
– Single Grain US Unranked Too few answers Not measured
–
  • : Unranked
0% 0% None First reading
– Velocity Partners GB Unranked Too few answers Not measured
–
  • : Unranked
0% 0% None First reading
– VML US Unranked Too few answers Not measured
–
  • : Unranked
1% 0% None First reading
– WebFX US Unranked Too few answers Not measured
–
  • : Unranked
0% 0% None First reading

“=” marks brands whose score ranges overlap, so the test cannot separate them. Every brand named in at least three answers is ranked. AI gives each brand’s score and rank from the engines’ answers; Search is not measured for this board yet. By engine has one dot per engine (ChatGPT, Google AI Overviews, Gemini and Google AI Mode), darker the more often it names the brand.

Most cited sources

Rank Source Type Cited in Engines Pages cited Brands its pages mention
1 clutch.co Directory 10.5% 4 of 4 21 Not read
2 semrush.com Vendor site 6.9% 4 of 4 25 Not read
3 sortlist.com Directory 6.2% 4 of 4 21 Not read
4 youtube.com Social 3.8% 2 of 4 18 Not read
5 google.com Vendor site 1.7% 2 of 4 17 Not read
6 sortlist.fr Directory 2.6% 3 of 4 11 Not read
7 blissagency.it Consultancy 3.1% 4 of 4 8 5
8 searchlab.nl Consultancy 3.3% 4 of 4 11 Not read
9 reddit.com Community 2.6% 3 of 4 10 Not read
10 sortlist.nl Directory 2.9% 4 of 4 11 Not read

Questions asked

QuestionLanguageMost recommended
marketing agency vs in-house marketing team in Germany English No brand recommended
best digital marketing agencies in Germany English No brand recommended
marketing agency for a small business in Germany English No brand recommended
Welche sind die besten Marketingagenturen in Deutschland? German Publicis Groupe
Ich leite ein Unternehmen mit 50 Mitarbeitenden in Deutschland. Welche Marketingagentur sollten wir beauftragen? German No brand recommended
Agencia de marketing digital para una empresa en crecimiento en España Spanish No brand recommended
¿Cómo puede una pequeña empresa en España encontrar una agencia de marketing que genere clientes potenciales? Spanish No brand recommended
¿Cómo elijo una agencia de marketing para lanzar un producto en España? Spanish No brand recommended
¿Equipo de marketing interno o agencia de marketing para una empresa en crecimiento en España? Spanish No brand recommended
¿Profesionales freelance o una agencia de marketing integral para pequeñas empresas en España? Spanish No brand recommended

Each engine's top three

Google AI Mode

No brand named in at least three answers.

Gemini

No brand named in at least three answers.

Method

Each leaderboard ranks brands on two sides. AI is how ChatGPT, Gemini, Google AI Overviews and Google AI Mode answer the board's buyer questions. Search is Google's top 10 results for the keywords behind those questions. All combines the two, where Search is measured.

For the AI side, each month Heralded asks every engine the same buyer questions, twice each, and reads every answer. An answer counts 0 for a brand it leaves out, 50 for a brand it names and 100 for a brand it recommends, and the Heralded Score is built from those. A brand named in at least three answers gets a score and a place.

How the leaderboards are measured