Marsh & McLennan Companies Inc. Customer Service

Phone Number & Contact Info

Marsh & McLennan Companies Inc.'s Best Phone Number

212-345-5000
Calls Customer Service·Most popular Marsh & McLennan Companies Inc. number
Q:

How do I talk to a live human at Marsh & McLennan Companies Inc.?

A:Calling this Marsh & McLennan Companies Inc. number should go right to a real human being.
Q:

Does Marsh & McLennan Companies Inc. offer 24 hour customer service?

A:Yes! This call center operates 24 hours a day, 7 days a week. The least busy day is Monday, and the most busy day is Wednesday.
Q:

How long will I wait on hold?

A:We don't expect that you will have to wait to talk to a person. This is a direct line. How is this calculated?

How do I get through the phone menu to a live person?

GetHuman researchers routinely call this Marsh & McLennan Companies Inc. phone number to document the phone system.
Here is our latest tip for weaving through the phone menu to get to a real person the fastest: Calling this Marsh & McLennan Companies Inc. number should go right to a real human being
In fact, much of this information on this page is superfluous because this Marsh & McLennan Companies Inc. phone number is a direct line to a human being. The line is well-staffed and you should anticipate a very short wait on hold or none whatsoever, as long as you are calling during business hours.
We don't know of any phone menus you would encounter when calling either.

What are the hours and when should I call?

Marsh & McLennan Companies Inc. operates the call center for this 212-345-5000 phone number 24 hours, 7 days. The short answer is that you should call on a Monday. This observation and the following section are based on analysis of a sample set of 13,853 calls made in the last 90 days using our free, web-based phone (see above).
An important note: busy times vs hold times vs best time to call
When we refer to busy or less busy times, we are talking about the volume of calls. The busiest times are when the most people are calling this Marsh & McLennan Companies Inc. phone number (least busy times have fewer people calling). This high call volume does not necessarily mean that you will have a long hold time when you call. Companies like Marsh & McLennan Companies Inc. staff their call centers differently based on the time of day and day of the week, so you may experience a shorter wait on hold at the busiest of times. When we refer to the best time to call, we are referring to the optimal combination of lower call volume and shorter wait times.

The least busy time to call

The least busy day to call Marsh & McLennan Companies Inc. is Monday. The most busy day to call is Wednesday. Again, this is based on a sample of 13,853 calls made with our AI-powered, web-based phone in the last 90 days.

The shortest wait on hold

We measured the shortest hold times to be on Thursday. The longest wait in the queue on average occurs on Wednesday.

The best time to call Marsh & McLennan Companies Inc.

In summation, the best day to call Marsh & McLennan Companies Inc. is Monday. This is not the day with the shortest wait on hold in the phone system, but we still recommend it for its ideal combination of low call volume and short hold times. Plus we believe that Marsh & McLennan Companies Inc. staffs the call center well on Monday.
Once again, please put this information in perspective because this phone number has no phone menu or long waits. It generally gets picked up right away if calling during their opening hours. If there is any way, it will typically be very short.

Why Customers Call Marsh & McLennan Companies Inc.

If you have time to do a bit of reading before you call Marsh & McLennan Companies Inc., we recommend you read over some of our problem-specific articles.

What is the history of Marsh & McLennan Companies Inc.?

Marsh & McLennan Companies Inc. has a rich and extensive history that spans over 150 years. The company was founded in New York City in 1871, making it one of the oldest and largest global professional services firms. Initially, the firm focused on insurance brokerage and risk management services. Over time, Marsh & McLennan expanded its services to include investment management, consulting, and more. It has grown through various acquisitions, with notable ones including merging with Mercer in 1959 and acquiring Oliver Wyman Group in 2003. Today, Marsh & McLennan operates through four subsidiaries: Marsh, Mercer, Guy Carpenter, and Oliver Wyman. The company has become a trusted advisor to businesses and governments worldwide, providing innovative solutions in risk, strategy, and people management.

What are the subsidiaries of Marsh & McLennan Companies Inc.?

Marsh & McLennan Companies Inc. operates through four main subsidiaries: Marsh, Mercer, Guy Carpenter, and Oliver Wyman. Marsh, the largest subsidiary, is a leading global insurance brokerage and risk management firm that provides a wide range of services to businesses and individuals. Mercer is a renowned global consulting leader specializing in human resources and investment consulting, offering advice and services to corporate clients. Guy Carpenter focuses on reinsurance and risk management solutions for insurance companies and other clients worldwide. Lastly, Oliver Wyman is a prestigious management consulting firm assisting various industries with strategic advice and implementation guidance. These subsidiaries operate independently but collaborate to provide comprehensive risk management, consulting, and insurance solutions to clients across the globe.

Where are the headquarters of Marsh & McLennan Companies Inc. located?

The headquarters of Marsh & McLennan Companies Inc. is located in New York City, United States. As a global professional services firm, Marsh & McLennan Companies operates in more than 130 countries, with a significant presence in major cities worldwide. However, its main corporate office is situated in the iconic 1166 Avenue of the Americas building in Manhattan. This central location enables Marsh & McLennan to be at the heart of innovation, industry trends, and global business operations. With this strategic headquarters, the company facilitates seamless collaboration, attracts top talent, and ensures proximity to key clients, financial institutions, and partners.

Top Marsh & McLennan Companies Inc. customer service problems

Click the link above to get answers to just about any Marsh & McLennan Companies Inc. customer service question, including step by step guides for the most complex issues. You can also detail a new issue and get answers instantly.

Conclusion and closing notes

This is Marsh & McLennan Companies Inc.'s best phone number, the real-time current wait on hold and tools for skipping right through those phone lines to get right to a Marsh & McLennan Companies Inc. agent. This phone number is Marsh & McLennan Companies Inc.'s best phone number because 83,119 customers like you used this contact information over the last 18 months and gave us feedback. Common problems addressed by the customer care unit that answers calls to 212-345-5000 include Get financial advice and other customer service issues. Rather than trying to call Marsh & McLennan Companies Inc. first, consider describing your issue first; from that we may be able to recommend an optimal way to contact them via phone. In total, Marsh & McLennan Companies Inc. has 1 phone number. It's not always clear what is the best way to talk to Marsh & McLennan Companies Inc. representatives, so we started compiling this information built from suggestions from the customer community. Please keep sharing your experiences so we can continue to improve this free resource.

GetHuman does not provide call center services or customer support operations for Marsh & McLennan Companies Inc.. The two organizations are not related. GetHuman builds free tools and shares information to help customers of companies like Marsh & McLennan Companies Inc.. For large companies that includes tools such as our GetHuman Phone, which allows you to call a company but skip the part where you wait on the line to get a live human rep. We continue to work on these tools to help customers like you (and ourselves!) navigate the messy phone menus, hold times, and confusion with customer service. As long as you keep sharing it with your friends and loved ones, we'll keep doing it.

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