Directory of Corporate Archives in the United States and Canada: SAA
"This is the fifth edition of the Directory of Corporate Archives in the United States and Canada. This edition includes companies that maintain their historical records themselves, as well as companies that contract with historical consulting firms to maintain their archives collections for them. Those businesses that contract outside the company for archival services are marked by an asterisk. This edition also includes the archives of professional associations, as these collections document various industries and companies that may be of use to corporate archivists." The Lippincott library at the University of Pennsylvania also features an online annual report archive that is available to the public.