Use the Directory of Corporate Affiliations, available through LexisNexis. Search by name or ticker symbol for a company. Look for the "Parents & Subsidiaries" link in the company report to view a corporate hierarchy of affiliations.
Also consider using the following print sources, available in Pius Library:
- America's Corporate Families and International Affiliates
Lists U.S. companies with their foreign subsidiaries and foreign ultimates with their U.S. subsidiaries. In addition to listing U.S. and foreign ultimates with their family members alphabetically, all companies are cross-referenced by geographical location and SIC industry code. Shelved in Pius Reference at HG4057 .A146.
- Directory of American Firms Operating in Foreign Countries
Listing of American firms with affiliates or subsidiaries outside the U.S. Volume 1 lists firms alphabetically, while Volumes 2 & 3 contain listings organized by country in which the company has operations.
- Directory of Corporate Affiliations
Lists more than 63,000 parent companies along with their divisions, subsidiaries and affiliates. Entries include number of employees, type of business, and corporate officers.