Fluor Corporation (Fluor) is a holding company. It is a professional services company providing engineering, procurement, construction and maintenance, as well as project management services on a global basis. Fluor serves a diverse set of industries worldwide, including oil and gas, chemicals and petrochemicals, transportation, mining and metals, power, life sciences and manufacturing. It is also a primary service provider to the United Services federal government. Fluor operates in five principal segments: Oil & Gas, Industrial & Infrastructure, Government, Global Services and Power. Fluor Constructors International, Inc., which is organized and operates separately from the rest of its business, provides management and construction services in the United States and Canada, both independently and as a subcontractor on projects in each of its segments. In November 2011, it acquired a sulfur technology company, Goar, Allison & Associates, a unit of Air Products.