Supplier Information and Resources

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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 and our suppliers to share information and conduct business in a secure environment.

Terms & Conditions

Where suppliers have signed specific agreements with Marsh & McLennan Companies, the terms of such agreements will govern all purchase orders. Where no signed agreement exists, purchase orders will be subject to the global general conditions of purchase.

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iBuy Invoice Contacts

Click here to view appropriate Marsh & McLennan Companies Accounts Payable Contacts for Purchase Order (iBuy) invoice statuses.

iSupplier Portal

The Marsh & McLennan Companies iSupplier workspace provides registered suppliers with the ability to directly access information and enter business transactions in a secure, self-service environment. The site provides real-time information on purchase orders, time critical delivery information, receipts, invoices and payments. To visit the iSupplier workspace, choose the Marsh & McLennan Companies operating company you are a supplier to from the menu below. For help in how to use iSupplier, click here.

Prospective Suppliers:

If you are a prospective supplier and would like to be considered for future opportunities with Marsh & McLennan Companies, please complete the form below. Your information will be included in a database referenced for future opportunities.

Online Supplier Form