Who Owns Whom

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Who Owns Whom is a set of annual directories published by GAP Books in association with Dun & Bradstreet (D&B). They provide the relationship between companies worldwide showing who is the ultimate parent company and who are their subsidiaries. Details include parent name, address and telephone number, country of incorporation and SIC code for each ultimate parent company along with the names of the subsidiaries, where they are based, and who owns whom for each subsidiary. The set of directories are broken down into seven geographic regions: UK & Ireland; West Europe; North Europe; South, Central & East Europe; North & South America; Australasia, Asia, Africa & Middle East.

Who Owns Whom was first published in 1958 by D&B, who still own the rights to the data. Within the set of ten directories are listed approximately 2,500,000 corporate groups, ranging from companies with hundreds of members across all continents to single-country groups with only a handful of members.

Criteria for entry[edit]

In order to maintain full coverage, all entries in Who Owns Whom are published entirely free of charge. Every effort is made by D&B, who supply the data, to include all corporate groups within the coverage area. The corporate group may be a vast multinational with a range of subsidiaries spanning many different countries and industries, or it may consist of two companies – a parent and a subsidiary. There is no size criterion for entry. All corporate groups, which come to the attention of D&B, are included regardless of their sales turnover or number of employees. Companies and organisations are only included if ownership is greater than 50% by other companies or organisations.


All types of industries are covered, including agriculture, forestry and fishing, mining, construction, manufacturing, transportation, communication and public utilities, wholesale, retail, finance and insurance, services and public administration. Both public and private companies are covered, along with many companies owned by official bodies such as governments, nationalised industries and state holding companies which have subsidiaries, but are not themselves independently registered.

External links[edit]