Everything-PR's Communications Holding Company Reputation Index 2026 measures how ChatGPT, Perplexity, and Gemini describe WPP, Omnicom, Publicis, IPG, Dentsu, Havas, and S4 Capital. Omnicom owns scale. Publicis owns reputation.
The 5W Reputation Index — Study 01: NFL Owners. 32 principals scored across five AI engines and five dimensions. Arthur Blank #1 at 82. Joel Glazer at 38. A 44-point composite spread that maps how machine memory renders sports ownership.
The reference lexicon for communications in the answer-engine era — 24 entries plus a seven-principle Doctrine. Citation Share, GEO, Entity Graph, Answer Share, Source Authority, and the working vocabulary of the discipline.
