| Name | Country | Market Cap (US$) |
|---|
| "Nordwest Dental GmbH & Co. KG" | Germany | Private |
| "Sanitas" Gesellschaft m.b.H. | Austria | Private |
| 1207273 Alberta ULC | Canada | Private |
| 3 Phase Measurements AS | Norway | Private |
| 3089554 Nova Scotia ULC | Canada | Private |
| 3F Therapeutics, Inc. | United States | Private |
| 3M (Medical Markets Group) | United States | Private |
| 3M China Limited | China | Private |
| 3M International Trading (Shanghai) Co., Ltd. | China | Private |
| 3M NEW ZEALAND LIMITED | New Zealand | Private |
| 3M Unitek Corporation | United States | Private |
| A & J Care Inc | United States | Private |
| A and D Rus OOO | Russia | Private |
| A Company Orthodontics | United States | Private |
| A J & B Herman Enterprise Inc | United States | Private |
| A Plus International Inc | United States | Private |
| A U P PTY LIMITED | Australia | Private |
| A-Dec Dental U.K. Ltd. | United States | Private |
| A-DEC Inc. | United States | Private |
| A. Allen Medical Equipment Rents & Sells Inc | United States | Private |
| A. M. G. Médical Inc | Canada | Private |
| A.C.N. 000 233 536 PTY LIMITED | Australia | Private |
| A.DE MORI SPA | Italy | Private |
| A.M.D.-Ritmed Inc | Canada | Private |
| A.S.T.- Angewandte System Technik GmbH, Mess- und Regeltechnik | Germany | Private |
| A1 RUBBER SDN BHD | Malaysia | Private |
| AAF LTD | United Kingdom | Private |
| AAF SA | Spain | Private |
| AAL Reference Laboratories | United States | Private |
| AAMAL MEDICAL COMPANY. | Qatar | Private |
| Aanderaa Data Instruments AS | Norway | Private |
| AB Elektronik Sachsen GmbH | Germany | Private |
| AB Halmstads Gummifabrik | Sweden | Private |
| AB MEDICA SPA | Italy | Private |
| AB Qualitrol Akm | Sweden | Private |
| Abbott Diabetes Care | United States | Private |
| Abbott Ireland | Republic of Ireland | Private |
| Abbott Laboratories A/S | Denmark | Private |
| Abbott Laboratories Limited | Hong Kong | Private |
| Abbott Medical Optics Inc. | United States | Private |
| Abbott Vascular Devices Holland B.V. | Netherlands | Private |
| Abbott Vascular Instruments Deutschland GmbH | Germany | Private |
| ABBOTT VASCULAR KNOLL RAVIZZA SPA | Italy | Private |
| Abena GmbH | Germany | Private |
| ABEX MEDICAL SYSTEM SDN BHD | Malaysia | Private |
| ABILITIES CARE-NET,INC. | Japan | Private |
| Ablation Frontiers, Inc. | United States | Private |
| ABLE INSTRUMENTS & CONTROLS LTD | United Kingdom | Private |
| Accelerated Care Plus Corporation | United States | Private |
| Accellent Corp. | United States | Private |
| Accellent Inc. | United States | Private |
| Access Closure, Inc. | United States | Private |
| Access Home Care, Inc. | United States | Private |
| Access Industries, Inc. | United States | Private |
| Access Mediquip Llc | United States | Private |
| Accra-Pac, Inc. | United States | Private |
| Accumed Technologies, Inc. | United States | Private |
| Acertys Healthcare NV | Belgium | Private |
| ACI Medical, Inc. | United States | Private |
| Acist Medical Systems, Inc. | United States | Private |
| ACN 009 656 428 PTY LTD | Australia | Private |
| ACON Laboratories, Inc. | United States | Private |
| Acorn Engineering Company, Inc. | United States | Private |
| ACT, K.K. | Japan | Private |
| Actamed Ltd | United Kingdom | Private |
| Actaris Liquid Measurement, Llc. | United States | Private |
| ACTEON Germany GmbH | Germany | Private |
| ACTION TECHNOLOGY ITALIA SPA | Italy | Private |
| ACTIVE MEDICAL CO.,LTD. | Japan | Private |
| AcuFocus, Inc. | United States | Private |
| Aculight Corporation | United States | Private |
| Acuson Corporation | United States | Private |
| Ad. & Hch. Wagner GmbH & Co. KG Dental-Medizinische Großhandlung | Germany | Private |
| ADAC Laboratories | United States | Private |
| ADACHI, K.K. | Japan | Private |
| Adalberto V Santos e Cia Ltda | Brazil | Private |
| ADALTIS ITALIA SPA | Italy | Private |
| Adaptive Eyecare Ltd | United Kingdom | Private |
| ADC Automotive Distance Control Systems GmbH | Germany | Private |
| Adiana, Inc. | United States | Private |
| ADLER ORTHO SRL | Italy | Private |
| Admed Pty Ltd | Australia | Private |
| ADOC D.O.O. | Yugoslavia | Private |
| Adronit GmbH | Germany | Private |
| ADS Mexicana S.A. de C.V. | Mexico | Private |
| Advance Technologies In Home Inc | United States | Private |
| Advanced Bionics Corporation | United States | Private |
| Advanced Bionics, Llc | United States | Private |
| Advanced Cardiovascular Systems, Inc | United States | Private |
| ADVANCED ELASTOMER SYSTEMS LTD | United Kingdom | Private |
| Advanced Home Care, Inc. | United States | Private |
| Advanced Mammography Systems, Inc. | United States | Private |
| ADVANCED MEDICAL OPTICS AUSTRALIA PTY LTD | Australia | Private |
| Advanced Neuromodulation Systems, Inc. | United States | Private |
| Advanced NMR Systems, Inc. | United States | Private |
| Advanced Orthopedic Technologies Inc | United States | Private |
| Advanced Research & Applications Corp | United States | Private |
| Advanced Respiratory Inc | United States | Private |
| Advanced Scientifics, Inc. | United States | Private |
| Advanced Solar Photonics, Llc | United States | Private |
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