What are the top 5 marketing companies?
Asked "What are the top 5 marketing companies?", ChatGPT, Google AI Mode, Perplexity, Gemini and Copilot named 12 distinct names across 5 answers on September 9, 2026, and 7 of them in two or more answers.
Measured acrossChatGPTGoogle AI ModePerplexityGeminiCopilot
7 of 12 names confirmed · named in 2 or more of 5 answers · asked September 9, 2026 · 5 engines
The top marketing companies include Omnicom Group, Publicis Groupe, WPP, Dentsu Group, and others, with varying strengths in creative advertising, media, data-driven marketing, and digital transformation.
- 1Publicis Groupenamed in 5 of 5 answers
- 2Omnicom Groupnamed in 4 of 5 answers
- 3WPP plcnamed in 3 of 5 answers
- 4Dentsu Groupnamed in 3 of 5 answers
- 5Accenture Songnamed in 2 of 5 answers
- 6WPPnamed in 2 of 5 answers
- 7Interpublic Group (IPG)named in 2 of 5 answers
- 8Omnicomnamed in 1 of 5 answersone answer
- 9Dentsunamed in 1 of 5 answersone answer
- 10Havas Groupnamed in 1 of 5 answersone answer
- 11Google Advertising (Alphabet)named in 1 of 5 answersone answer
- 12Meta Adsnamed in 1 of 5 answersone answer
LOCKED
The full measurement
- The position each of the 5 engines gave all 12 names.
- How many of the 5 answers named each of them.
- 26 sampled observations behind this ranking, and where the engines disagree.
- Fan-out — the query each engine actually searched.
- Every citation, and the sources nobody cited.