Most companies list their address and phone numbers on their website. Search for a company's official website using you preferred search engine, such as Google or Yahoo. For smaller companies that may not have websites, search an online yellow pages such as Superpages.
For more in depth company information, you can search ReferenceUSA. Reference USA includes verified listings for over 15 million US businesses. You can search ReferenceUSA at any Free Library location or from your home or office when you login with your Free Library card number and PIN. To get started, visit our database page.
For more information or to speak with a librarian contact the Business, Science & Industry Department at: 215-686-5394 or write firstname.lastname@example.org.