Who Owns Whom

Dun & Bradstreet has been a major publisher of business information from its earliest iteration back in 1841. A corporate linkage directory, the Who Owns Whom Series lists corporate groups, ranging from companies with hundreds of members across all continents, to single-country groups with only a handful of members. Companies are listed alphabetically, with information on subsidiaries and parents, and country of incorporation for both parent and subsidiary. Recent editions still use the U.S. 1987 Standard Industry Classification system to categorize major trading activities.

The following titles link to fuller bibliographic information in the Library of Congress Online Catalog. Links to additional online content are included when available.

Australaisa, Asia, Middle East & Africa

Who Owns Whom. Australasia, Asia, Middle East & Africa
Call Number: HG4009.W464
Published/Created: Annually, 1998/99-present
Continues in part: Who Owns Whom (High Wycombe, England). In one volume this publication provides the corporate family trees of parent companies registered in Australasia, Asia, Middle East and Africa, as well as an alphabetical index of all subsidiaries located in these areas linked to the ultimate parent. The latest edition is available in the Business Reading Room.
Who Owns Whom: Australasia and Far East
Call Number: HD2927.W48
Published/Created: Annually, 1972-1992
Continues Who Owns Whom. Australia and Japan, International. Merged with other titles to form Who Owns Whom (High Wycombe, England). This directory of parent, associate and subsidiary companies was published by O.W. Roskill Co. 1972-1976/77. Dun & Bradstreet is indicated as publisher beginning with the 1977/78 edition. The Library holds all editions except 1973. From 1981 through 1992, editions were marked with a single year date; between 1975/76 through 1979/80 editions were marked with succeeding and overlapping years.
Who Owns Whom. Australia and Japan, international.
Call Number: HD2927.W48
Published/Created: 1971
Continued by Who Owns Whom. Australasia and Far East. The Library has this edition in its collection.

Continental Europe

Who Owns Whom. North Europe
Call Number: HG4132.Z5 W524
Published/Created: Annually, 2009-present
A directory of parent, associate and subsidiary companies. This continues Who Owns Whom. Continental Europe.
Who Owns Whom. West Europe
Call Number: HG4132.Z5 W526
Published/Created: Annually, 2009-present
A directory of parent, associate and subsidiary companies. This continues Who Owns Whom. Continental Europe.
Who Owns Whom. South, Central & East Europe
Call Number: HG4132.Z5 W525
Published/Created: Annually, 2009-present
A directory of parent, associate and subsidiary companies. This continues Who Owns Whom. Continental Europe.
Who Owns Whom. Continental Europe [1998-2008]
Call Number: HG4132.Z5 W52
Published/Created: Annually, 1998/99-2008/09
Continues in part: Who Owns Whom (High Wycombe, England). Issued in three volumes. Corporate family trees of all parent companies registered in Continental Europe are provided in the first two volumes. Beginning in the second volume and continuing through the third is an alphabetical index of all subsidiaries located within continental Europe linked to their ultimate parent.
Split into three publications: Who Owns Whom. South, Central & East Europe; Who Owns Whom. West Europe; and Who Owns Whom. North Europe.
Who Owns Whom: Continental Europe [1977-1992]
Call Number: HG4132.Z5W5
Continues Who Owns Whom. Continental ed. Merged with other titles to form Who Owns Whom (High Wycombe, England). This directory of parent, associate and subsidiary companies was issued in two volumes. The Library's holdings are complete, and include an Addendum dated 1979.
Who Owns Whom. Continental ed.
Call Number: HG4132.Z5W5
Published/Created: Annually, 1961/62-1976
Continued by Who Owns Whom: Continental Europe, this publication was issued in 2 volumes: vol. 1.--Austria, Western Germany, Switzerland (including Liechtenstein), Denmark, Finland, Sweden and Norway; vol. 2.--Belgium and Luxembourg, France, Holland, Italy, Portugal and Spain. 1967/68 was issued in one volume. Prior to 1961, information in this publication was included in Who Owns Whom: U.K. edition The Library's collection is complete.

United Kingdom & Ireland

Who Owns Whom: United Kingdom & Ireland
Call Number: HG4135.5.W48
Published/Created: Annually, 1998/99-present
Continues in part: Who owns whom (High Wycombe, England). Issued in two volumes; the first volume provides corporate family trees of parent companies registered in the United Kingdom and in Ireland, while the second provides and alphabetical index to all subsidiaries within the UK and Ireland linked to their ultimate parent. The latest edition is assigned to the Business Reading Room.
Who Owns Whom: United Kingdom and Republic of Ireland
Call Number: HG4135.Z5W5
Published/Created: Annually, 1977/78-1992
Continues Who Owns Whom, United Kingdom. Merged with other titles to form Who Owns Whom (High Wycombe, England). After 1978/79 and 1979/80, each volume was numbered with a single year, the next being 1980. This is a directory of parent, associate and subsidiary companies. The Library's holdings are complete, and include an Addendum dated 1977/78.
Who Owns Whom. [United Kingdom]
Call Number: HG4135.Z5W5
Published/Created: Annually, 1959-1976/77
The Library's holdings are complete. In 1959 and after 1972 it was published in two volumes; from 1960 through 1971 it was published in one volume.

North & South America

Who Owns Whom. North & South America
Call Number: HG4081.Z65W48
Published/Created: Annually, 1998/99-present
Continues in part Who Owns Whom (High Wycombe, England). Issued in two volumes. The first provides corporate family trees of parent companies registered in North and South America arranged by country. The second volume is an alphabetical index of all subsidiaries within North and South America linked to their ultimate parent. The latest edition is available in the Business Reading Room.
Who Owns Whom. North America
Call Number: HG4538.W423
Published/Created: Annually, 1976-1992
Continues Who Owns Whom. North American edition, and was merged with other titles to form Who Owns Whom (High Wycombe, England). The Library holds editions 1977/78, then 1982 through 1992. All were published by Dun & Bradstreet.
Who Owns Whom. North American edition
Call Number: HG4538.W423
Published/Created: Annually, 1973-1975
Continues Who Owns Whom. International Subsidiaries of U.S. Companies, and is continued by Who Owns Whom. North America. The Library holds only the 1973 edition, which appears to be the fifth edition. It is a directory of Canadian parent, subsidiary and associate companies, and of U.S. parent companies with their subsidiaries and associate companies outside the United States of America.
Who Owns Whom. {International subsidiaries of U. S. companies.}
Call Number: HG4538.W423
Published/Created: Annually, 1969-1972
Continued by Who Owns Whom. North American edition. The Library holds only the 1969 edition of this directory of U.S. parent companies with their subsidiary and associate companies outside the United States of America.

Who Owns Whom (High Wycombe, England) [1993-1997]

Who Owns Whom (High Wycombe, England)
Call Number: HG4009.W46
Published/Created: Annually, 1993-1997/98
Formed by the union of:
Who Owns Whom. Australasia and Far East;
Who Owns Whom. Continental Europe;
Who Owns Whom. North America.
Who Owns Whom. United Kingdom and Republic of Ireland.

It split into its various parts to form:
Who Owns Whom. Australasia, Asia, Middle East & Africa;
Who Owns Whom. Continental Europe;
Who Owns Whom. North & South America;
Who Owns Whom. United Kingdom & Ireland.

Issued in 6 volumes: v. 1, Australasia & Far East; v. 2, North America; v. 3-4, United Kingdom & Republic of Ireland; v. 5-6, Continental Europe. The Library holds all volumes for 1993 (however, v.2 was cataloged, labeled and shelved with Who Owns Whom. North America at HG4538.W23), all volumes for 1994, 1995/96, and 1997/98: v.3 is missing from the 1997 edition.