A company’s official website is an ideal place to look for the location of its headquarters. Business Insights: Global, Dun & Bradstreet, PrivCo, ReferenceUSA and EDGAR database are some other good sources to find information about a company, including the location of its headquarters.
Most companies have a website and list the address of its headquarters. Company websites also normally include other information, such as the company's products, services, history, directors/owners, branches and financial information.
All public companies, domestic and foreign, are required to file with the Securities and Exchange Commission. This information includes the locations of their headquarters and is stored in the EDGAR database, and it is free to access and download. The SEC does not require private companies to file information, and therefore, external databases are ideal to look for information about private companies. In most cases, the external databases have more detailed information and are available at a price.
Dun & Bradstreet is a publisher and runs Hoovers.com. The company’s commercial database is one of the most resourceful in the market, and its data is available for purchase. Business Insights: Global is a database that is part of the Library of Congress and is available on subscription. PrivCo is another good source to find information about private companies and is also available through a subscription. ReferenceUSA is a directory available on subscription that has information about private and public companies in the United States and Canada.