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Exhibit 21.1
SUBSIDIARIES OF THE COMPANY
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STATE OF
NAME DBA INCORPORATION
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<S> <C> <C>
Black Box Corporation
Bbox Holding Company Delaware
ATIMCO Network Services, Inc. Black Box Network Services - Western Pennsylvania Pennsylvania
American Telephone Wiring Company Black Box Network Services - West Virginia West Virginia
Midwest Communications Technologies, Inc. Black Box Network Services Ohio
Associated Network Solutions, Inc. Black Box Network Services - Central Florida Florida
Advanced Communications Corporation Black Box Network Services - South Carolina South Carolina
Ohmega Installations Limited
Cable Consultants, Incorporated Black Box Network Services - Atlanta Georgia
Todd Communications, Inc. Black Box Network Services - North Carolina North Carolina
Comm Line, Inc. Black Box Network Services Ohio
Business Communication Concepts, Inc. Virginia
Koncepts Communications of L.I., Corp. Black Box Network Services - Tri-State New York
Communication Contractors, Inc. Black Box Network Services - Chicago Illinois
DataCom-Link, Inc. Black Box Network Services - Indiana Indiana
U.S. Premise Networking Services, Inc. Black Box Network Services - Minnesota Minnesota
Datech Holdings Limited
Black Box Network Services, Inc. -
Government Solutions Tennessee
Parrish Communication Cabling, Inc. Black Box Network Services - Seattle Washington
R&D Services, Inc. Black Box Network Services Massachusetts
Delaney Telecom, Inc. Black Box Network Services - Philadelphia Pennsylvania
Delaney Electrical Services, Inc. Black Box Network Services - Philadelphia Pennsylvania
K&A Communications, Inc. Missouri
Jet Line Communications, Inc. Black Box Network Services - Dallas Texas
A.T.S., Inc. Black Box Network Services - Huntington West Virginia
Advanced Network Technologies, Inc. Black Box Network Services - California California
Teldata Corporation Black Box Network Services - Tennessee Tennessee
ST Communications & Cabling, Inc. Black Box Network Services - Kansas City Missouri
Allcom Electric, Inc. New York
Black Box Network Services Baltimore, Inc. Delaware
Black Box Network Services Greater
Pittsburgh, Inc. Delaware
Datel Communications, Inc. Black Box Network Services - Arizona Arizona
Data Specialties Europe Ltd.
Midwest Electronics and Communications, Inc. Black Box Network Services - Denver Colorado
Duracom, Inc. Washington
Sterling Technology Systems, Inc. Minnesota
Clear Communications, Inc. Washington
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<S> <C> <C>
Person-to-Person Communications, Inc. Virginia
Smiles Communication Systems, Inc. Tennessee
Da/Com Limited Massachusetts
Black Box Corporation of Pennsylvania Delaware
Black Box Catalogue, Ltd.
Black Box Canada Corporation
Black Box Foreign Sales Corporation
Black Box France, S.A.
Black Box Datacom, B.V.
Black Box Communication SANV
Indacom N.V.
Blue Box, B.V.
Ascor bvba
BB Technologies, Inc. Delaware
Datacom Black Box Services AG
Black Box Deutschland GmbH
Black Box Italia, SpA
Black Box Japan Kabushiki Kaisha
Black Box Catalog Australia Pty. Ltd.
Black Box Catalog New Zealand Limited
Black Box do Brazil Industria e Comercio Ltda.
Black Box de Mexico, S.A. de C.V.
Alpeco Puerto Rico, Inc.
South Hills Datacomm Chile, S.A.
Black Box Comunicaciones, SA
Schoeller Connectivity Gmbh
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