MSI Net Inc. and mCloudServ, one of the leading technology service firms in Brooklyn, is expanding its mission after recently moving its headquarters in Bay Ridge.Founder and President John Abi-Habib announced that the company, which operated out of 415-417 86th St. for nearly 20 years, has moved to 7333 Sixth Ave. The one-story building is located on the corner of Sixth Avenue and 74th Street.