Amazon.com Inc.

Amazon expects to begin building HQ2, which includes two high-rise towers, green spaces and retail stores, by early 2020.

Earlier this month, the company cleared the last hurdle to begin building its second headquarters, called HQ2, when its plans received unanimous approval from the Arlington County, Virginia board. Amazon now expects to break ground on the 2.1-million-square-foot development in early 2020 and construction is slated to be complete in 2023.