Identity & Authority: Marsh – Signal Evidence & AI Readability

Marsh

(https://marshmclennan.com) 📸 Data Snapshot: May 31, 2026
Identity & Authority — The Lens

Inspect the JSON-LD. Is there an Organization or Person schema, and does it carry sameAs links to real external profiles (LinkedIn, socials)? Missing schema or no identity declaration signals an anonymous entity.

Identity & Authority Expert verifiability & Schema depth.
15 Impact Weight: 15 / 100
100% Reputation

Authority gaps are non-existent. The news release explicitly names the President and CEO (John Doyle) and CFO (Mark McGivney), providing specific contact information for investor and media relations. The schema_json is robust, containing proper organization types, address data for ‘1166 Avenue of the Americas,’ and social media ‘sameAs’ links. The technical implementation of the brand change, including the stock ticker update, provides high digital authority that leaves no room for expert claims without a footprint.

The marketing tone is aspirational (‘shaping the global agenda’), but it is backed by verifiable participation in Davos and the World Economic Forum. The performance claim of being a ‘global leader’ is supported by the specific annual revenue figure of over $24 billion mentioned in the news release. Unlike smaller firms that claim to be ‘leaders’ without evidence, Marsh provides the scale metrics (90k employees) to justify the assertion.

Identity & Authority is read from the structured data first: whether the site declares who it is in machine-readable schema, with verifiable identity links. Below is the schema captured per page, then the external proof links that support (or fail to support) that identity.

🔗 Identity & Technical Layer — schema JSON-LD: identity chains, entity gaps
Homepage schema
{
    "@context": "https://schema.org",
    "@type": "Organization",
    "url": "https://www.corporate.marsh.com",
    "logo": "https://www.corporate.marsh.com/content/dam/mmc-web/site-design/mmc-logo-v3-transparent-background-blue-letters.svg",
    "name": "Marsh",
    "alternateName": [
        "mmc",
        "marsh mclennan",
        "marsh mc lennan",
        "mclennan",
        "mc lennan"
    ],
    "description": "Marsh helps organizations navigate risk, develop talent, and build strategies to thrive. Expertise in risk, reinsurance, capital, people, and consulting.",
    "telephone": "+1-212-345-5000",
    "sameAs": [
        "https://www.instagram.com/marsh_global/",
        "https://www.linkedin.com/company/marshglobal/",
        "https://x.com/MarshGlobal",
        "https://www.corporate.marsh.com/"
    ],
    "address": {
        "@type": "PostalAddress",
        "streetAddress": "1166 Avenue of the Americas",
        "addressLocality": "New York",
        "addressRegion": "NY",
        "postalCode": "10036",
        "addressCountry": "US"
    }
}
/news-events/2025/december/marsh-mclennan-to-change-nyse-symbol-to-mrsh.html
{
    "@context": "http://schema.org",
    "@type": "Organization",
    "name": "Marsh & McLennan",
    "legalName": "Marsh & McLennan",
    "url": "https://www.mmc.com/",
    "logo": "https://www.mmc.com/content/dam/mmc-web/site-design/logo-mmc.png",
    "foundingDate": "1905",
    "founders": [
        {
            "@type": "Person",
            "name": "Henry Marsh"
        },
        {
            "@type": "Person",
            "name": "Donald McLennan"
        }
    ],
    "address": {
        "@type": "PostalAddress",
        "streetAddress": "1166 Avenue of the Americas",
        "addressLocality": "New York City",
        "addressRegion": "NY",
        "postalCode": "10036",
        "addressCountry": "USA"
    },
    "contactPoint": {
        "@type": "ContactPoint",
        "contactType": "customer support",
        "telephone": "[+212-345-5000]",
        "email": "corpcomms.brand@mmc.com"
    },
    "sameAs": [
        "https://twitter.com/mmc_global",
        "https://www.instagram.com/mmc_global",
        "https://en.wikipedia.org/wiki/Marsh_%26_McLennan_Companies",
        "https://www.linkedin.com/company/marsh-&-mclennan-companies-inc-/"
    ]
}
🛡️ Trust Signals — external proof links that back the declared identity
2Review mentions (all pages)
0External proof links (all pages)
PageReviewsProof links
/ (home) 2 0
/news-events/2025/december/marsh-mclennan-to-change-nyse-symbol-to-mrsh.html 0 0