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Public LEI record · Global LEI Index

United States of America · Jurisdiction Delaware

MARSH & MCLENNAN COMPANIES, INC.

C/O CORPORATION TRUST CENTER, 1209 ORANGE ST, WILMINGTON, 19801, US

Legal Entity Identifier 549300XMP3KDCKJXIU47
Entity status
Active
LEI status
Issued
Policy conformity
Conforming
Reference data
Register-verified
Next renewal
16 Dec 2026
LEI Issuer
London Stock Exchange

Record snapshot

The Legal Entity Identifier for MARSH & MCLENNAN COMPANIES, INC. is 549300XMP3KDCKJXIU47. It is valid, policy conforming and renewed until 16 Dec 2026.

MARSH & MCLENNAN COMPANIES, INC. is a corporation formed in Delaware, United States, registered as 706226 with Division of Corporations, Department of State, Delaware, United States. The LEI was registered on 7 Jan 2014. At its last validation on 9 Sep 2026, all of its Level 1 reference data was confirmed against Division of Corporations, Department of State. It reports no parent, on the grounds that no controlling person is known. 116 entities report it as their ultimate parent. London Stock Exchange maintains the record.

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Transfer to RapidLEI A transfer changes which LEI Issuer manages the record. The LEI code and its reference data do not change.

Registered entity Level 1 data

Legal name
MARSH & MCLENNAN COMPANIES, INC.
Legal form
Corporation XTIQ
Jurisdiction
Delaware, United States US-DE
Registration
Registered at Division of Corporations, Department of State, Delaware, United States RA000602. Registration number 706226
Entity created
17 Mar 1969
Legal address
C/O CORPORATION TRUST CENTER, 1209 ORANGE ST, WILMINGTON, 19801, US
Headquarters
1166 AVENUE OF THE AMERICAS, NEW YORK, 10036, US
Connected identifiers
OpenCorporatesus_de/706226 S&P Capital IQ473342 Other identifiers recorded against this LEI.
Securities
US571748AK86 US571748BD35 US571748CE09 US571748BW16 US5717481023 US571748BZ47 US571748BV33 US571748BT86 US571748BS04 US571748CA86 US571748CF73 US571748BN17 25 ISINs are mapped to this LEI in the ANNA and GLEIF ISIN-to-LEI file.

What this record’s status means

Reference data
Register-verified GLEIF records this as fully corroborated. At its last validation, all of the entity's Level 1 reference data was verified against an authoritative public source.

Changes to this record

Not retrieved yet. The change history for this record has not been retrieved yet.

Ownership Level 2 data

  1. Ultimate parent
    No parent entity Reported exception Top of the ownership chain
  2. Direct parent
    No parent entity Reported exception Top of the ownership chain
  3. This entity

    MARSH & MCLENNAN COMPANIES, INC.

    US · 549300XMP3KDCKJXIU47

    Active

  4. Below
    89 Direct subsidiaries
    116 Ultimate subsidiaries
    Show the subsidiaries reported

    This is the part of the relationship data we hold for this record. GLEIF reports 89 direct and 116 ultimate subsidiaries.

    Entities that report this one as their parent in the Global LEI Index.

Level 2 data records who consolidates this entity. A reported relationship, or a reported reason for the absence of one, both satisfy the standard. Only a record carrying neither is incomplete.

Where this data comes from

Source registry

Division of Corporations, Department of State, Delaware, United States

Validated against

Division of Corporations, Department of State, Delaware, United States

Maintained by

London Stock Exchange

Published in

The GLEIF Global LEI Index. This record last updated 9 Sep 2026

MARSH & MCLENNAN COMPANIES, INC.

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Up to 20 active subsidiaries, in the order this page lists them. Subsidiaries change, so review this list whenever your group structure does.

How to use this

Reference data from the GLEIF Global LEI Index, as published on 9 Sep 2026.