Marsh & McLennan Companies, Inc.401(k) + ESOP (KSOP)

Marsh & McLennan Companies, Inc.'s 2024 Form 5500 did not separately report plan administrative expenses, which is common where recordkeeping is paid through investment revenue-sharing or a master trust. The plan held $7,404,158,126 across 32,879 participant accounts, with employer contributions averaging $8,635 per active participant. See methodology for what Form 5500 does and doesn't capture.

The plan sits in the over $1B size bracket, benchmarked here against 1,229 comparable plans and shown alongside other finance & insurance employers. By assets it is the 15th-largest of 5,648 plans among New York employers on file, and the 28th of 4,798 in finance & insurance. In 2024, employees put in $1.55 for every $1.00 the employer contributed.