Consider the source of your site carefully. Corporate web sites may be valuable sources of company information, but you must keep in mind that your business has a vested interest in the image its web presence projects. Consider carefully whether the information you obtain is objective and accurate. You may want to verify some information with more than one source. You may also want to consult some resources in the area in which your company operates.
Local newspapers are an excellent source.
Also try the following organizations. International Chamber of Commerce Directory Chambers of Commerce often publish membership directories and have information on local companies. This site Includes links to online local chambers with names and addresses. A good resource for finding out whether your company has had any complaints lodged against them. Local Public Libraries Local libraries may maintain news clipping files on companies in their area.