Microsoft Corp., Redmond, Washington, is awarded an estimated $1,760,000,000 value single-award, firm-fixed-price, indefinite-delivery/indefinite-quantity contract for Microsoft Enterprise Services for the Department of Defense (DoD), Coast Guard, and intelligence community. Support includes Microsoft product engineering services for software developers and product teams to leverage a range of proprietary resources and source-code, and Microsoft premier support for tools, knowledge database, problem resolution assistance, and custom changes to Microsoft source-code when applicable. This contract is issued under the DoD Enterprise Software Initiative (ESI) in accordance with the Defense Federal Acquisition Regulation Supplement, Section 208.74. DoD ESI is an initiative to streamline the acquisition process and provide information technology products and services worldwide that are compliant with applicable DoD technical standards and represent the best value for the DoD. The work will be performed worldwide. The ordering period will be for five years with a completion date of Jan. 10, 2024. This contract will not obligate funds at the time of award. Funds will be obligated on individual task orders using primarily operations and maintenance funds (DoD). This sole-source procurement is issued using other than full and open competition in accordance with Federal Acquisition Regulation Subpart 6.302-1 and 10 U.S. Code 2304(c)(1) – only one responsible source. The Space and Naval Warfare Systems Center Pacific, San Diego, California, is the contracting activity (N66001-19-D-0019).