The library provides many databases that contain information on companies all over the world. For help determining where to start looking for company information, take a look at this Company Research Flow Chart created by Business and Information Services.
For even more detailed information on finding company information, check out the The iMBA's Guide to Digital Business Research.
To find information about privately owned companies, try starting with one of these databases.
To find information about publicly owned companies, try starting with one of these databases.