Marsh & McLennan Statistics and Facts (2021) | By the Numbers

Marsh & McLennan Statistics and Facts

Here are a few of the most interesting Marsh & McLennan statistics and facts I was able to dig up. As always, be sure to check back in the future as I will be updating this post as new and updated stats become available.

Marsh & McLennan Statistics and FactsPlease note that some of these numbers are easier to find than others. A few of these Marsh & McLennan stats come from their own reports, but some are based on news reports and not official company tallies. No information contained on DMR should be relied upon to make investment decisions. Basically, this is the best I can find and I don’t guarantee anything to be 100%

Marsh & McLennan Facts

  • Website:
  • Year Founded: 1905
  • Founders: Donald McLennan and Henry Marsh
  • Headquarters: New York, NY
  • CEO: Daniel Glaser
  • Key Subsidiaries: Guy Carpenter, Marsh, Mercer, Oliver Wyman,

Marsh & McLennan Statistics

Number of Marsh & McLennan employees:


Last updated 9/19/18

Number of countries Marsh & McLennan has clients in:


Last updated 9/19/18

Marsh & McLennan annual revenue: