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Exhibit 21.1
SUBSIDIARIES OF THE COMPANY
STATE OF
LEGAL NAME DOING BUSINESS AS INCORPORATION
---------- ----------------- -------------
Black Box Corporation Black Box Corporation Delaware
ATIMCO Network Services, Inc. Black Box Network Services - Western Pennsylvania Pennsylvania
American Telephone Wiring Company Black Box Network Services - Charleston, West Virginia West Virginia
Midwest Communications Technologies, Inc. Black Box Network Services - Cleveland, Columbus, Ohio
Detroit
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
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 - Minneapolis Minnesota
Datech Holdings Limited Black Box Network Services - Nottingham (UK)
Black Box Network Services, Inc. - Government Black Box Network Services, Inc. - Government Solutions Tennessee
Solutions
R&D Services, Inc. Black Box Network Services - New England Massachusetts
Delaney Telecom, Inc. Black Box Network Services - Philadelphia Cabling Pennsylvania
Delaney Electrical Services, Inc. Black Box Network Services - Philadelphia Electrical 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 West Virginia
Advanced Network Technologies, Inc. Black Box Network Services - Southern California California
33
STATE OF
LEGAL NAME DOING BUSINESS AS INCORPORATION
---------- ----------------- -------------
Teldata Corporation Black Box Network Services - Tennessee Commercial Tennessee
ST Communications & Cabling, Inc. Black Box Network Services - Kansas City Missouri
Black Box Network Services & Electrical, Inc. Black Box Network Services & Electrical, Inc. New York
Allcom Electric
Black Box Network Services Baltimore
Black Box Network Services Baltimore, Inc. Black Box Network Services Virginia Delaware
Black Box Network Services D.C.
Datel Communications, Inc. Black Box Network Services - Arizona Arizona
Data Specialties Europe Ltd. (holding company) 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
Black Box Network Services (Cambridge) Ltd. Black Box Network Services (Cambridge) Ltd. (UK)
(UK)
Black Box Network Services Reseavux Black Box Network Services Reseavux Mediterranee SAS
Mediterranee SAS (Montpelier, France) (Montpelier, France)
Black Box Network Services AG (Switzerland) Black Box Network Services AG (Switzerland)
Michael Electric, Inc. Black Box Network Services - New Jersey New Jersey
Integrated Cabling Systems, Inc. Black Box Network Services - Nebraska Nebraska
Black Box Network Services (London) Ltd. (UK) Black Box Network Services (London) Ltd. (UK)
DESIGNet, Inc. Black Box Network Services - San Jose California
Black Box Network Services Puebla S.A. de Black Box Network Services Puebla S.A. de C.V. (Mexico)
C.V. (Mexico)
Black Box Network Services AB (Sweden) Black Box Network Services AB (Sweden)
Optech Fibres Ltd. Black Box Network Services - Northwest (UK)
Black Box Network Services (Northampton) Ltd. Black Box Network Services (Northampton) Ltd. (UK)
(UK)
Black Box Network Services srl - Rome (Italy) Black Box Network Services srl - Rome (Italy)
34
STATE OF
LEGAL NAME DOING BUSINESS AS INCORPORATION
---------- ----------------- -------------
Lanetwork Sales Ltd. Black Box Network Services - Kitchener (Canada)
Black Box Netzwerkservice Bayern GmbH (Germany) Black Box Netzwerkservice Bayern GmbH (Germany)
Telefuture Communications, Ltd. Black Box Network Services - New Rochelle New York
Black Box Netzwerkservice Stuttgart GmbH Black Box Netzwerkservice Stuttgart GmbH (Germany)
(Germany)
Black Box Network Services Singapore Pte Ltd. Black Box Network Services Singapore Pte Ltd.
Black Box Services Paris SAS Black Box Services Paris SAS
Black Box Network Services (N. Ireland) Ltd. Black Box Network Services (N. Ireland) Ltd.
Black Box Network Services (Dublin) Ltd. Black Box Network Services (Dublin) Ltd.
BBox Holding Company BBox Holding Company Delaware
Black Box Corporation of Pennsylvania Black Box Corporation of Pennsylvania Delaware
Black Box UK, Ltd. Black Box UK, Ltd.
Black Box Canada Corporation Black Box Canada Corporation
Black Box Foreign Sales Corporation Black Box Foreign Sales Corporation
Black Box France, S.A.S. Black Box France, S.A.S.
Black Box Datacom, B.V. (Netherlands) Black Box Datacom, B.V. (Netherlands)
Black Box Network Products NV (Belgium) Black Box Network Products NV (Belgium)
Black Box Network Design NV (Belgium) Black Box Network Design NV (Belgium)
Black Box Network Cabling NV (Belgium) Black Box Network Cabling NV (Belgium)
Blue Box (Netherlands) Blue Box (Netherlands)
BB Technologies, Inc. BB Technologies, Inc. Delaware
Datacom Black Box Services AG (Switzerland) Datacom Black Box Services AG (Switzerland)
Black Box Deutschland GmbH (Germany) Black Box Deutschland GmbH (Germany)
Black Box Italia, srl Black Box Italia, srl
Black Box Network Services Kabushiki Kaisha Black Box Network Services Kabushiki Kaisha (Japan)
(Japan)
35
STATE OF
LEGAL NAME DOING BUSINESS AS INCORPORATION
---------- ----------------- -------------
Black Box Network Services Australia Pty Ltd. Black Box Network Services Australia Pty Ltd.
Black Box Network Services New Zealand Black Box Network Services New Zealand Limited
Limited
Black Box do Brazil Industria e Comercio Ltda. Black Box do Brazil Industria e Comercio Ltda.
Black Box de Mexico, S.A. de C.V. Black Box de Mexico, S.A. de C.V.
Black Box P.R. Corp. (Puerto Rico) Black Box P.R. Corp. (Puerto Rico)
Black Box Chile, S.A. Black Box Chile, S.A.
Black Box Comunicaciones, SAU (Spain) Black Box Comunicaciones, SAU (Spain)
Black Box GmbH (Austria) Black Box GmbH (Austria)
Black Box Norge AS (Norway) Black Box Norge AS (Norway)
Black Box Finland OY Black Box Finland OY
Black Box AB (Sweden) Black Box AB (Sweden)
Black Box A/S (Denmark) Black Box A/S (Denmark)
36