Exhibit 21 LIST OF SUBSIDIARIES
2089729 Ontario, Inc. |
2248848 Ontario Inc. |
3065619 Nova Scotia Company |
3257959 Nova Scotia Company |
3901858 Canada, Inc. |
896988 Ontario Inc. |
Accupath Diagnostic Laboratories, Inc. |
Beacon Laboratory Benefit Solutions, Inc. |
CannAmm GP Inc. |
CannAmm Limited Partnership |
Centrex Clinical Laboratories, Inc. |
Clearstone Central Laboratories (Canada) Inc. |
Clearstone Central Laboratories (China) Inc. |
Clearstone Central Laboratories (Singapore) Pte. Ltd. |
Clearstone Central Laboratories (U.S.) Inc. |
Clearstone Holdings (International) Ltd. |
Clipper Holdings, Inc. |
Colorado Coagulation Consultants, Inc. |
Consolidated Medical Services, Inc. |
Correlagen Diagnostics, Inc. |
Cytometry Associates, Inc. |
Czura Thornton (Hong Kong) Limited |
DCL Acquisition, Inc. |
DCL Medical Laboratories, LLC |
DCL Sub LLC |
Decision Diagnostics, LLC (aka DaVinici/Medicorp LLC) |
Diagnostic Services, Inc. |
DIANON Systems, Inc. |
DL Holdings Limited Partnership |
Dynacare - Gamma Laboratory Partnership |
Dynacare Company |
Dynacare G.P. Inc. |
Dynacare Holdco LLC |
Dynacare Laboratories Limited Partnership |
Dynacare Laboratories Inc. |
Dynacare Northwest Inc. |
Dynacare Realty Inc. |
DynaLifeDX Diagnostic Laboratory Services |
DynalifeDX Infrastructure Inc. |
Endocrine Sciences, Inc. |
Esoterix Genetic Counseling, LLC |
Esoterix Genetic Laboratories, LLC |
Esoterix, Inc. |
Execmed Health Services Inc. |
FirstSource Laboratory Solutions, Inc. |
Gamma-Dynacare Central Medical Laboratories GP Inc. |
Gamma-Dynacare Central Medical Laboratory Limited Partnership |
GDML Medical Laboratories Inc |
GeneScreen, Inc. |
Glen Ames LLP |
HHLA Lab-In-An-Envelope, LLC |
Home Healthcare Laboratory of America, LLC |
IDX Pathology, Inc. |
Lab Delivery Service of New York City, Inc. |
LabCorp Dialysis Services, Inc. |
Labwest, Inc. |
LabCorp BVBA |
LabCorp Development Company |
LabCorp Japan, G.K. |
LabCorp Limited |
LabCorp Specialty Testing Billing Service, Inc. |
LabCorp Specialty Testing Group, Inc. |
LabCorp Tennessee, LLC |
Laboratory Corporation of America (LCA) |
Laboratory Corporation of America Holdings (LCAH) |
LCAH Clipper, LP |
LDS Diagnostic Laboratories Inc |
Lifecodes Corporation |
Litholink Corporation |
Medtox Diagnostics, Inc. |
Medtox Laboratories, Inc. |
Medtox Scientific, Inc. |
Monogram Biosciences, Inc. |
Monogram Biosciences UK Limited |
National Genetics Institute |
New Brighton Business Center LLC |
New Imaging Diagnostics, LLC |
New Molecular Diagnostics Ventures LLC |
NWT Inc. |
Orchid Cellmark Inc. |
Orchid Cellmark Ltd. |
Orchid Cellmark ULC |
PA Labs, Inc. |
Path Lab Incorporated |
Persys Technology Inc. |
Princeton Diagnostic Laboratories of America, Inc. |
Protedyne Corporation |
ReliaGene Technologies, Inc. |
Rix Ltd. |
SW/DL LLC |
Tandem Labs Inc. |
The Biomarker Factory, LLC |
Trainor Laboratory |
United/Dynacare LLC |
Viro-Med Laboratories, Inc. |
Dynacare non-operating entities identified subsequent to the acquisition of Dynacare Inc. on July 25, 2002 |
1004679 Ontario Limited |
563911 Ontario Limited |
794475 Ontario Inc. |
829318 Ontario Limited |
854512 Ontario Limited |
879606 Ontario Limited |
900747 Ontario Ltd. |
925893 Ontario Limited |
942487 Ontario Ltd. |
942489 Ontario Ltd. |
942491 Ontario Limited |
942492 Ontario Ltd. |
947342 Ontario Ltd. |
949235 Ontario Ltd. |
958069 Ontario Inc. |
977681 Ontario Inc. |
978550 Ontario Ltd. |
978551 Ontario Ltd. |
Amherstview Medical Centre Developments Inc. |
DHG Place Du Centre Clinique |
Dynacare Canada Inc. |
Dynacare International Inc. |
Glen Davis Equities Ltd. |
L.R.C. Management Service Inc. |
Lawrence-Curlew Medical Centre Inc. |
Roselat Developments Limited |
St. Joseph's Health Centre |
Stockwin Corporation Ltd. |
Thistle Place Care Corp. |
Toronto Argyro Medical Laboratories Ltd. |
Woodstock Medical Arts Building Inc. |