Microsoft Authorized Support Centers provide multivendor support for each phase of the enterprise computing life cycle. As with any type of business, ASCs vary in size and service offerings. While not every ASC provides every possible support service, each one provides a wide variety of services. Listed are ASCs with national coverage and ASCs with multinational coverage.

ASC Program Information A detailed guide to the Microsoft ASC program. North American Based ASC List Internet links and phone numbers of ASCs serving the U.S. and Canada. Some U.S. based ASCs provide services outside the U.S. and Canada. Worldwide ASC List Contact information for Microsoft ASCs Worldwide.