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Marsh legal entities

Effective January 2026, Marsh McLennan became Marsh, consolidating the organization under a single global brand. Beginning in 2027, the company’s businesses will transition to aligned Marsh branding over time, while Oliver Wyman will continue to operate under its existing brand.

This page provides information on legal entity name changes, including status updates and completion details for the company’s businesses. To view the proposed entity names and status, open the dropdown.

  • Marsh Risk formerly known as Marsh. At times, we may refer to this business as "Risk and Insurance" in our marketing.
  • Marsh formerly known as Mercer. At times, we may refer to this business as "People and Investments" in our marketing.
  • Marsh Re formerly known as Guy Carpenter. At times, we may refer to this business as "Reinsurance and Capital" in our marketing.
  • Oliver Wyman remains Oliver Wyman. At times, we may refer to this business as "Management Consulting" in our marketing.
  • Marsh Agency formerly known as Marsh McLennan Agency (MMA).
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Marsh Risk formerly known as Marsh

There are currently no legal entity changes associated with the Marsh Risk brand.

Marsh formerly known as Mercer

US entities

Current entity name: Mercer (US) LLC

Proposed entity name: Marsh (Mercer) (US) LLC

State Completion Status
Alabama TBD
Alaska TBD
Arizona TBD
Arkansas TBD
California TBD
Colorado TBD
Connecticut TBD
Delaware TBD
District of Columbia TBD
Florida TBD
Georgia TBD
Hawaii TBD
Idaho TBD
Illinois TBD
Indiana TBD
Iowa TBD
Kansas TBD
Kentucky TBD
Louisiana TBD
Maryland TBD
Massachusetts TBD
Michigan TBD
Minnesota TBD
Mississippi TBD
Missouri TBD
Nebraska TBD
Nevada TBD
New Hampshire TBD
New Jersey TBD
New Mexico TBD
New York TBD
North Carolina TBD
North Dakota TBD
Ohio TBD
Oklahoma TBD
Oregon TBD
Rhode Island TBD
South Carolina TBD
South Dakota TBD
Tennessee TBD
Texas TBD
Utah TBD
Vermont TBD
Virginia TBD
Washington TBD
Wyoming TBD
US Virgin Islands TBD

 

Current entity name: Mercer Health & Benefits Administration LLC

Proposed entity name: Marsh Health & Benefits Administration LLC

State Completion Status
Alabama TBD
Alaska TBD
Arizona TBD
Arkansas TBD
California TBD
Colorado TBD
Connecticut TBD
Delaware TBD
District of Columbia TBD
Florida TBD
Georgia TBD
Hawaii TBD
Idaho TBD
Illinois TBD
Indiana TBD
Iowa TBD
Kansas TBD
Kentucky TBD
Louisiana TBD
Maine TBD
Maryland TBD
Massachusetts TBD
Michigan TBD
Minnesota TBD
Mississippi TBD
Missouri TBD
Montana TBD
Nebraska TBD
Nevada TBD
New Hampshire TBD
New Jersey TBD
New Mexico TBD
New York TBD
North Carolina TBD
North Dakota TBD
Ohio TBD
Oklahoma TBD
Oregon TBD
Pennsylvania TBD
Puerto Rico TBD
Rhode Island TBD
South Carolina TBD
South Dakota TBD
Tennessee TBD
Texas TBD
Utah TBD
Vermont TBD
Virginia TBD
Washington TBD
West Virginia TBD
Wisconsin TBD
Wyoming TBD
US Virgin Islands TBD

 

Current entity name: Mercer Health & Benefits LLC

Proposed entity name: Marsh Health & Benefits LLC

State Completion Status
Alabama TBD
Alaska TBD
Arizona TBD
Arkansas TBD
California TBD
Colorado TBD
Connecticut TBD
Delaware TBD
District of Columbia TBD
Florida TBD
Georgia TBD
Hawaii TBD
Idaho TBD
Illinois TBD
Indiana TBD
Iowa TBD
Kansas TBD
Kentucky TBD
Louisiana TBD
Maine TBD
Maryland TBD
Massachusetts TBD
Michigan TBD
Minnesota TBD
Mississippi TBD
Missouri TBD
Montana TBD
Nebraska TBD
Nevada TBD
New Hampshire TBD
New Jersey TBD
New Mexico TBD
New York TBD
North Carolina TBD
North Dakota TBD
Ohio TBD
Oklahoma TBD
Oregon TBD
Pennsylvania TBD
Puerto Rico TBD
Rhode Island TBD
South Carolina TBD
South Dakota TBD
Tennessee TBD
Texas TBD
Utah TBD
Vermont TBD
Virginia TBD
Washington TBD
West Virginia TBD
Wisconsin TBD
Wyoming TBD
US Virgin Islands TBD
Guam TBD

 

Current entity name: Mercer Investments LLC

Proposed entity name: Marsh Investments LLC

State Completion Status
Alabama TBD
Alaska TBD
Arizona TBD
Arkansas TBD
California TBD
Connecticut TBD
Delaware TBD
Florida TBD
Georgia TBD
Hawaii TBD
Idaho TBD
Illinois TBD
Indiana TBD
Iowa TBD
Kansas TBD
Kentucky TBD
Maine TBD
Maryland TBD
Massachusetts TBD
Michigan TBD
Minnesota TBD
Mississippi TBD
Missouri TBD
Montana TBD
Nebraska TBD
Nevada TBD
New Hampshire TBD
New Jersey TBD
New Mexico TBD
New York TBD
North Carolina TBD
North Dakota TBD
Ohio TBD
Oklahoma TBD
Oregon TBD
Pennsylvania TBD
Rhode Island TBD
South Carolina TBD
South Dakota TBD
Tennessee TBD
Texas TBD
Utah TBD
Vermont TBD
Virginia TBD
Washington TBD
West Virginia TBD
Wisconsin TBD
Wyoming TBD
Guam TBD

 

Canada entities

Current entity name: Mercer (Canada) Limited/Mercer (Canada) limitée

Proposed entity name: Marsh (Mercer) Canada Limited / Marsh (Mercer) Canada Limitée

Province / Territory Completion Status
Alberta TBD
British Columbia TBD
Manitoba TBD
New Brunswick TBD
Newfoundland TBD
Northwest Territories TBD
Nova Scotia TBD
Nunavut TBD
Ontario TBD
Prince Edward Island TBD
Quebec TBD
Saskatchewan TBD
Yukon TBD

 

Current entity name: Mercer Global Investments Canada Limited

Proposed entity name: Marsh Investments Canada Limited / Marsh Investissements Canada Limitée

Province / Territory Completion Status
Alberta TBD
British Columbia TBD
Manitoba TBD
New Brunswick TBD
Newfoundland TBD
Northwest Territories TBD
Nova Scotia TBD
Nunavut TBD
Ontario TBD
Prince Edward Island TBD
Quebec TBD
Saskatchewan TBD
Yukon TBD

Marsh Re formerly known as Guy Carpenter

US entities

Current entity name: Carpenter Marsh Fac Re LLC

Proposed entity name: Marsh Re Fac LLC

 
State Completion Status
Delaware TBD
Florida TBD
Puerto Rico TBD
Texas TBD

 

Current entity name: Guy Carpenter & Company, LLC

Proposed entity name: Marsh Re LLC

  
State Completion Status
Alabama TBD
Arkansas TBD
California TBD
Connecticut TBD
Delaware TBD
District of Columbia TBD
Florida TBD
Georgia TBD
Illinois TBD
Indiana TBD
Louisiana TBD
Maine TBD
Maryland TBD
Massachusetts TBD
Michigan TBD
Minnesota TBD
Mississippi TBD
Missouri TBD
Nevada TBD
New Jersey TBD
New Mexico TBD
New York TBD
North Carolina TBD
North Dakota TBD
Ohio TBD
Pennsylvania TBD
Puerto Rico TBD
Rhode Island TBD
South Carolina TBD
Texas TBD
Virginia TBD
Washington TBD
West Virginia TBD

 

Current entity name: Guy Carpenter Broking, Inc.

Proposed entity name: Marsh Re Broking Inc.

State Completion Status
Alabama TBD
Arizona TBD
Arkansas TBD
California TBD
Colorado TBD
Connecticut TBD
Delaware TBD
District of Columbia TBD
Florida TBD
Georgia TBD
Hawaii TBD
Idaho TBD
Illinois TBD
Indiana TBD
Iowa TBD
Kansas TBD
Kentucky TBD
Louisiana TBD
Maine TBD
Maryland TBD
Massachusetts TBD
Michigan TBD
Minnesota TBD
Mississippi TBD
Missouri TBD
Montana TBD
Nebraska TBD
Nevada TBD
New Hampshire TBD
New Jersey TBD
New Mexico TBD
New York TBD
North Carolina TBD
North Dakota TBD
Ohio TBD
Oklahoma TBD
Oregon TBD
Pennsylvania TBD
Rhode Island TBD
South Carolina TBD
South Dakota TBD
Tennessee TBD
Texas TBD
Utah TBD
Vermont TBD
Virginia TBD
Washington TBD
West Virginia TBD
Wisconsin TBD
Wyoming TBD

Oliver Wyman remains Oliver Wyman

There are currently no legal entity changes associated with the Oliver Wyman brand.

Marsh Agency formerly known as Marsh McLennan Agency (MMA)

US entities

Current entity name: Marsh & McLennan Agency LLC

Proposed entity name: Marsh Agency LLC

State Completion Status
Alabama TBD
Alaska TBD
Arizona TBD
Arkansas TBD
California TBD
Colorado TBD
Connecticut TBD
Delaware TBD
District of Columbia TBD
Florida TBD
Georgia TBD
Hawaii TBD
Idaho TBD
Illinois TBD
Indiana TBD
Iowa TBD
Kansas TBD
Kentucky TBD
Louisiana TBD
Maine TBD
Maryland TBD
Massachusetts TBD
Michigan TBD
Minnesota TBD
Mississippi TBD
Missouri TBD
Montana TBD
Nebraska TBD
Nevada TBD
New Hampshire TBD
New Jersey TBD
New Mexico TBD
New York TBD
North Carolina TBD
North Dakota TBD
Ohio TBD
Oklahoma TBD
Oregon TBD
Pennsylvania TBD
Puerto Rico TBD
Rhode Island TBD
South Carolina TBD
South Dakota TBD
Texas TBD
Vermont TBD
Virginia TBD
Washington TBD
West Virginia TBD
Wisconsin TBD
Wyoming TBD

 

Current entity name: MMA Securities LLC

Proposed entity name: Marsh Retirement Advisors LLC

State Completion Status
Alabama TBD
California TBD
Connecticut TBD
Delaware TBD
Florida TBD
Idaho TBD
Illinois TBD
Indiana TBD
Iowa TBD
Kentucky TBD
Maine TBD
Maryland TBD
Massachusetts TBD
Mississippi TBD
Missouri TBD
New Hampshire TBD
New Jersey TBD
New Mexico TBD
North Carolina TBD
North Dakota TBD
Ohio TBD
Oklahoma TBD
Oregon TBD
Pennsylvania TBD
South Dakota TBD
Tennessee TBD
Texas TBD
Vermont TBD
Washington TBD
West Virginia TBD
Wisconsin TBD
Wyoming TBD