Exhibit 21.1
SUBSIDIARIES OF THE COMPANY
STATE OF
NAME DOING BUSINESS AS INCORPORATION
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Black Box Corporation
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 - Cleveland, Columbus, Detroit 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 Black Box Network Services - Newbury (UK)
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 - Cincinnati Ohio
Business Communication Concepts, Inc. Black Box Network Services - Washington, D.C. Virginia
Koncepts Communications of L.I., Corp. Black Box Network Services - Tri-State New York
Communication Contractors, Inc. Black Box Network Services - Chicago Illinois
U.S. Premise Networking Services, Inc. Black Box Network Services - Minnesota Minnesota
Datech Holdings Limited Black Box Network Services - Nottingham (UK)
Black Box Network Services, Inc. -
Government Solutions Tennessee
R&D Services, Inc. Black Box Network Services - New England Massachusetts
Delaney Telecom, Inc. Black Box Network Services - Philadelphia Pennsylvania
Delaney Electrical Services, Inc. Black Box Network Services - Philadelphia Pennsylvania
K&A Communications, Inc. Black Box Network Services - St. Louis Missouri
Jet Line Communications, Inc. Black Box Network Services - Dallas Texas
FBS Communications, LP Black Box Network Services - San Antonio 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
Black Box Network Services & Electrical, 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. Black Box Network Services - Cambridge (UK)
Midwest Electronics and Communications, Inc. Black Box Network Services - Denver Colorado
Duracom, Inc. Black Box Network Services - Seattle Washington
Black Box Network Services - Oregon
Orchard Network Solutions Ltd. Black Box Network Services - Cambridge (UK)
Societe Industrielle de Telephonie, Alarme et Video Black Box Network Services - France
Netcabling B.V. Black Box Network Services - Belgium
Bernhard Merz AG. Black Box Network Services - Switzerland
Universal Connections, Incorporated Black Box Network Services - Indiana Indiana
Michael Electric, Inc. Black Box Network Services - New Jersey New Jersey
STATE OF
NAME DOING BUSINESS AS INCORPORATION
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Integrated Cabling Systems, Inc. Black Box Network Services - Nebraska Nebraska
Computer Cables and Accessories Ltd. Black Box Network Services - London (UK)
Vivid Communications, Inc. Black Box Network Services - Kensington Maryland
DESIGNet, Inc. Black Box Network Services - San Jose California
J.C. Informatica Integral S.A. de C.V., Consultoria
en Redes S.A. de C.V. and SIC Comunicaciones S.A.
de C.V. Black Box Network Services - Mexico
LJL Telephone and Communication, Inc. Black Box Network Services - New England Massachusetts
AB Lofamatic Black Box Network Services - Sweden
Optech Fibres Ltd. Black Box Network Services - Cumbria (UK)
GCS Network Services Ltd. Black Box Network Services - Northampton (UK)
Di.el. Distribuzioni Elettroniche S.r.l. Black Box Network Services - Rome (Italy)
Lanetwork Sales Ltd. Black Box Network Services - Canada
TW Netzwerkservice GmbH Black Box Network Services - Bavaria (Germany)
Telefuture Communications, Ltd. Black Box Network Services - New Rochelle New York
NKS Netzwerke Kabel Systeme GmbH Black Box Network Services - Stuttgart (Germany)
Bbox Holding Company Delaware
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
Black Box Norge AS
Black Box Finland OY
Black Box Sverige AB
Black Box Denmark