Supplier Information and Resources

This site facilitates interaction between Marsh & McLennan Companies and our suppliers. Through tools, supplier information, support resources, and other useful documentation, it enables Marsh & McLennan Companies and our suppliers to share information and conduct business in a secure environment.

Terms and Conditions

Where a master agreement is in effect between the supplier and Marsh & McLennan Companies, Inc., or the Marsh & McLennan Companies, Inc. affiliate that is the Customer, the terms of that agreement will govern all purchase orders. In the absence of any such agreement, purchase orders will be governed by Marsh & McLennan Companies, Inc.'s standard terms and conditions, except that purchase orders for the performance of Services or delivery of Goods in each of the countries listed below will be governed by the version of Marsh & McLennan Companies, Inc.’s standard terms and conditions translated into the local language for each country respectively (click on applicable country name for translation):

- Germany
- Korea
- Argentina
- Chile
- Uruguay
- Venezuela

Prospective Suppliers:

If you are a prospective supplier and would like to be considered for future opportunities with Marsh & McLennan Companies, please complete the Marsh & McLennan Companies, Inc. Supplier Registration Form below. Your information will be preserved within our Registered Supplier Database, which is referenced by our Global Sourcing and Procurement department for future opportunities.

Reporting Security Incidents

If you are a current supplier and need to report a security incident, please contact your primary Marsh & McLennan account contact by phone. In the event you are unable to reach such contact promptly, send an email to Please include: (a) a description of the incident, including its impact; (b) the expected resolution time (if it has not already been resolved); (c) corrective measures to be taken, evaluation of alternatives and next steps; and (d) the name and phone number of the supplier representative for us to contact to obtain further information and updates.

Accounts Payable Contacts

Enroll in electronic invoicing with Marsh & McLennan partner Tungsten. Your enrollment will facilitate on-time payment and allow you to easily see invoice statuses. Tungsten is not yet available for Mercer locations.

For purchase order and invoice status not processed through Tungsten, please use the following contacts:

Marsh & McLennan Companies, Marsh, Guy Carpenter, Stars, VOSCO, ENCON for US & Canada:

Marsh – EMEA:

Marsh Pty Ltd (Marsh Australia):

Mercer US & Canada:

Mercer UK:

For geographies not listed, please connect with your Marsh & McLennan Companies business contact for the appropriate contact information.