LEI record
· United StatesMARSH & MCLENNAN COMPANIES, INC.
MARSH & MCLENNAN COMPANIES, INC. in WILMINGTON — Issued LEI 549300XMP3KDCKJXIU47, registered 2014.
Changes recorded by LEIatlas since 6 Jul 2026: updated its address on 10 Sep 2026. GLEIF publishes only the current record.
- Legal form
- Corporation
- Jurisdiction
- United States
- Registered
- 7 Jan 2014
- Next renewal
- 16 Dec 2026
Reference data
Identity
- LEI
- 549300XMP3KDCKJXIU47
- ISINs
- US5717481023 · US571748AK86 · US571748BC51and 22 more →
- Legal form
- CorporationXTIQ
- Registration authority
- RA000602entity ID 706226
- Legal address
- C/O CORPORATION TRUST CENTER, 1209 ORANGE ST, WILMINGTON, 19801, US
- Location
- WILMINGTON, Delaware, United States
- HQ address
- 1166 AVENUE OF THE AMERICAS, NEW YORK, US
- Initial registration
- 7 Jan 2014
- Last updated
- 9 Sep 2026
- Managing LOU (issuer)
- LONDON STOCK EXCHANGE LEI LIMITED213800WAVVOPS85N2205
Level 2 · who owns whom
Corporate structure
- ASTERRA RE SOCIEDAD ANONIMA CORREDURIA DE REASEGUROSUltimate subsidiary
- CALM FINANCE HOLDINGS LIMITEDSubsidiary (direct and ultimate)
- CALM TREASURY HOLDINGS LIMITEDSubsidiary (direct and ultimate)
- Cardano Asset Management N.V.Ultimate subsidiary
- CARDANO HOLDING LIMITEDSubsidiary (direct and ultimate)
- Cardano Nederland B.V.Subsidiary (direct and ultimate)
- Cardano Risk Management B.V.Ultimate subsidiary
- CASCADE REGIONAL HOLDINGS LIMITEDSubsidiary (direct and ultimate)
Securities & codes
Securities and identifiers
- Securities (ISIN) · 25
- US5717481023 · US571748AK86 · US571748BC51 · US571748BD35 · US571748BG65 · US571748BH49 · US571748BJ05 · US571748BN17 · US571748BP64 · US571748BQ48 · US571748BR21 · US571748BS04 · US571748BT86 · US571748BU59 · US571748BV33 · US571748BW16 · US571748BX98 · US571748BY71 · US571748BZ47 · US571748CA86 · US571748CB69 · US571748CC43 · US571748CD26 · US571748CE09 · US571748CF73
- An ISIN (ISO 6166) identifies a single security, such as a share or a bond; the LEI identifies the legal entity behind it. In GLEIF’s ISIN-to-LEI relationship file, MARSH & MCLENNAN COMPANIES, INC. is the issuer of 25 ISINs. Any of them can be looked up with the ISIN lookup or directly at leiatlas.com/isin/US5717481023, which resolves to this page.
The archive · 4 versions
Change history
- 10 Sep 2026 – current
- LEI status: PENDING_ARCHIVAL→ISSUED
- Registration status: PENDING_ARCHIVAL→ISSUED
- Legal address: 1209 ORANGE ST→C/O CORPORATION TRUST CENTER, 1209 ORANGE ST
- HQ address: 1166 Avenue of the Americas→1166 AVENUE OF THE AMERICAS
- 8 Sep 2026 – 10 Sep 2026
- LEI status: PENDING_TRANSFER→PENDING_ARCHIVAL
- Registration status: PENDING_TRANSFER→PENDING_ARCHIVAL
- 3 Sep 2026 – 8 Sep 2026
- LEI status: ISSUED→PENDING_TRANSFER
- Registration status: ISSUED→PENDING_TRANSFER
- 6 Jul 2026 – 3 Sep 2026First recorded version.
What this means
What the record says about MARSH & MCLENNAN COMPANIES, INC.
MARSH & MCLENNAN COMPANIES, INC. sits at the top of a group of 116 entities that report it as their consolidating parent, from its registered address in WILMINGTON, United States.
The LEI has been on record for 12 years, since 7 Jan 2014. That is about 5 years earlier than the median LEI in United States, which dates from 2019 — an early adopter by local standards.
The next annual re-validation is due 16 Dec 2026, 55 days from now.
This archive holds 4 versions of the record. The most recent change was on 10 Sep 2026 and altered the lei status, registration status, legal address, hq address; the oldest version we hold dates from 6 Jul 2026. GLEIF publishes only the current state, so superseded values are not available from the source.
The LEI is issued and maintained by LONDON STOCK EXCHANGE LEI LIMITED, one of the Local Operating Units accredited by GLEIF.
Beyond the LEI, 25 ISINs are mapped to this entity in the GLEIF cross-reference files.
No direct accounting-consolidating parent is reported, because no controlling person is known. GLEIF requires this to be stated explicitly rather than left blank, so the absence is itself a data point.
No ultimate accounting-consolidating parent is reported, because no controlling person is known. GLEIF requires this to be stated explicitly rather than left blank, so the absence is itself a data point.
The LEI registration is issued, and the entity status (active) records whether the legal entity itself still exists. The two are independent: an LEI can lapse while the company trades on, and it can stay issued after the company has been dissolved.
The mesh
Related entities
Source: GLEIF (CC0)Official record ↗More in United States