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Exhibit 21.1
SUBSIDIARIES OF THE COMPANY
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NAME LOCATION STATE OF
---- -------- INCORPORATION
-------------
<S> <C> <C>
Advanced Communications Corporation Columbia, South Carolina, USA South Carolina
Advanced Network Technologies, Inc. Victorville, California, USA California
Allcom Electric, Inc. New York City, New York, USA New York
American Telephone Wiring Company Charleston, West Virginia, USA West Virginia
Associated Network Solutions, Inc. St. Petersburg, Florida, USA Florida
ATIMCO Network Services, Inc. Pittsburgh, Pennsylvania, USA Pennsylvania
A.T.S., Inc. Huntington, West Virginia, USA West Virginia
BBox Holding Company Wilmington, Delaware, USA Delaware
BB Technologies, Inc. Wilmington, Delaware, USA Delaware
Black Box Corporation of Pennsylvania Lawrence, Pennsylvania, USA Delaware
Black Box Network Services Baltimore, Inc. Columbia, Maryland, USA Delaware
Black Box Network Services Greater
Pittsburgh, Inc. Cranberry, Pennsylvania, USA Delaware
Black Box Network Services, Inc. -
Government Solutions Murfreesboro, Tennessee, USA Tennessee
Business Communication Concepts, Inc. Sterling, Virginia, USA Virginia
Cable Consultants, Incorporated Atlanta, Georgia, USA Georgia
Cabling Concepts, Inc. Lakewood, Ohio, USA Ohio
Comm Line, Inc. Cincinnati, Ohio, USA Ohio
Communication Contractors, Inc. Chicago, Illinois, USA Illinois
DataCom-Link, Inc. Indianapolis, Indiana, USA Indiana
Delaney Electrical Services, Inc. Philadelphia, Pennsylvania, USA Pennsylvania
Delaney Telecom, Inc. Philadelphia, Pennsylvania, USA Pennsylvania
GMCI NetComm, Inc. Dallas, Texas, USA Texas
Jet Line Communications, Inc. Dallas, Texas, USA Texas
K&A Communications, Inc. St. Louis, Missouri, USA Missouri
Koncepts Communications of L.I., Corp. Westbury, New York, USA New York
Midwest Communications Technologies, Inc. Columbus, Ohio, USA Ohio
Parrish Communication Cabling, Inc. Seattle, Washington, USA Washington
R&D Services, Inc. Westboro, Massachusetts, USA Massachusetts
ST Communications and Cabling, Inc. Kansas City, Missouri, USA Missouri
Teldata Corporation Nashville, Tennessee, USA Tennessee
Todd Communications, Inc. Winston-Salem, North Carolina, USA North Carolina
U.S. Premise Networking Services, LLC Minneapolis, Minnesota, USA Minnesota
U.S. Premise Networking Services, Inc. Minneapolis, Minnesota, USA Minnesota
Alpeco Puerto Rico, Inc. San Juan, Puerto Rico
Black Box Catalog Australia Pty. Ltd. Croydon VIC, Australia
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<S> <C>
Black Box Canada Corporation Ontario, Canada
Black Box Catalog New Zealand Limited Wellington, New Zealand
Black Box Catalogue, Ltd. Reading, England
Black Box Communication SANV Zaventum, Belgium
Black Box Comunicaciones, SA Madrid, Spain
Black Box Datacom, B.V. Utrecht, Netherlands
Black Box de Mexico, S.A. de C.V. Mexico City, Mexico
Black Box Deutschland GmbH Munich, Germany
Black Box do Brazil Industria e Comercio Ltda. Sao Paulo, Brazil
Black Box France, S.A. Rungis, France
Black Box Foreign Sales Corporation St. Thomas, U.S.V.I.
Black Box Italia, SpA Vimodrone, Italy
Black Box Japan Kabushiki Kaisha Tokyo, Japan
Blue Box, B.V Hoofdorp, Holland
Datacom Black Box Services AG Altendorf, Switzerland
Datacom Black Box Holding, AG Zug, Switzerland
Datech Holdings Limited Nottingham, England
Indacom N.V. Mechelen, Belgium
Ohmega Installations Limited Newbury, Berkshire, England
South Hills Datacomm Chile, S.A. Santiago, Chile
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