Contact Marsh & McLennan Corporate

Toll free phone number: 1-212-345-5000

Global specialized services firm Marsh & McLennan Companies, Inc. is headquartered in the United States. Among the services provided by the company are risk management, investment advisory, insurance brokerage, reinsurance, and talent management. Mercer, Guy Carpenter, Marsh and Oliver Wyman are four of the company's major segments through which it operates globally.
By now, Marsh is one of the top insurance brokerages and risk managers in the industry. Human resource management consulting and global consulting services are offered by the Mercer and Oliver Wyman segments. With $13.2 billion in 2016 revenue, Marsh McLennan ranked one of the largest insurers in the world according to Business Insurance. With a market capitalization of $61.75 billion, the company ranks 42nd in the world.

Experienced poor service? File a complaint here!

Marsh & McLennan Contact Information

Report complaints to corporate and get satisfaction

Marsh & McLennan headquarters address
- Marsh McLennan 1166 Avenue of the Americas New York, NY
- New York
- NY 10013
- United States
Company website

www.mmc.com
1-800 phone number

1-212-345-5000
Support email address

daniel.glaser@mmc.com
Better Business Bureau rating

N/A
Customer service hours

24 hours a day