Founded in 1887, Skanska is a project development and construction group with specialization in commercial and residential projects. Some of the services offered by the company include construction management, design-build, pre-construction and public-private partnerships. It has four businesses in the United States, which include Skanska USA Building, Skanska USA Civil, Skanska Infrastructure Development and Skanska Commercial Development. Skanska has over 50,000 employees worldwide and more than 8,000 of staffs working in the United States. It handles approximately 1,000 projects. The company provides various services, including aviation, commercial, education, green building, healthcare and roadways. Skanska is one of the first construction firms of United States to have all of its operations uphold the ISO 14001 Environmental Management System (EMS) Standard.