MMC Benefits Handbook
Account Information
The Plan Administrator provides information through the Marsh & McLennan Companies 401(k) Savings & Investment Plan's website and the Employee Service Center. You can access information and conduct Plan transactions by going online to the Marsh & McLennan Companies 401(k) Savings & Investment Plan's website, via Colleague Connect (https://colleagueconnect.mmc.com) for active employees and Connect (https://connect.mmc.com) for terminated employees, or by calling the Employee Service Center at +1 866 374 2662.
Online Systems and Employee Service Center (+1 866 374 2662)
Transactions available through the Voice Response System or the Employee Service Center
  • account balances
  • account balance by investment option
  • account balance by money type
  • amounts available for withdrawal
  • contribution rate
  • dividend election
  • investment direction
  • loan information including outstanding loan balances, amounts available for loans, interest rates and loan modeling
  • investment performance
  • investment price information
Transactions available through the Plan's Website or the Employee Service Center
  • investment directions for future contributions
  • contribution rate changes
  • catch-up contribution election
  • dividend election
  • fund-to-fund transfer
  • fund reallocation
  • loans
Voice Response System
  • Set up voice biometrics authentication when you call the Transamerica voice response system. The Voice Pass system will identify you based on your stored voiceprint. If you choose not to set up voice biometrics, you will need to provide authentication each time you call the system.
How to reach
Call the Employee Service Center at +1 866 374 2662 or visit the Plan's website online.
Hours of operation
Plan's Website: 24 hours a day, seven days a week
Employee Service Center: 8 a.m. – 8 p.m. Eastern time, any business day
Accessing your account
If you are an active employee:
Online Colleague Connect (https://colleagueconnect.mmc.com).
If you do not have access to Colleague Connect:
The first time you visit the website, you will need to click New user? Get started to set-up your user name and password. If you have an account balance in another qualified plan for which Transamerica is the recordkeeper, you will see the account balance for that plan as well as the Marsh & McLennan Companies plans you participate in.
By phone:
+1 866 374 2662