• Medamicus maker of peelable and slittable vessel introducers and catheter-based systems for vascular and non-vascular applications.

• Medical Carbon Research Institute manufacturer of the On-X prosthetic bileaflet heart valve and an improved form of silicon-free pyrolitic carbon called On-X Carbon.

• Medical Research Laboratories (MRL) specializes in automatic external defibrillators and cardiac monitoring systems.

• MedicalCV, Inc. designers and manufacturers of cardiac valve prostheses.

• Medtronic Physio-Control Corporation manufacturer of defibrillation and noninvasive pacing. Also offers public access defibrillation (PAD) programs using lifesaving AED medical equipment.

• Ortivus develops systems and components for medical informatics and decision-making support in the areas of acute cardiac disease and pre-hospital care.

• Pressure Products offers cardiac surgical pressure belts, clamps, and pacemakers.

• Quinton Developer of stress testing systems used to diagnose heart disease.

• Revivant Corporation makers of the AutoPulse Resuscitation System, a non-invasive cardiac assist pump that performs consistent and optimal chest compressions that provide blood flow to the heart and brain during cardiac arrest.

• Schiller Ag manufacturer of ECG, spirometer, holter ECG, stress test systems, ABPM, telemedicine, and patient monitors.

• St. Jude Medical Develops, manufactures and distributes medical devices for the global cardiovascular market.

• Sulzer Carbomedics designer, manufacturer, and distributor of mechanical heart valves.

• SynCardia Systems, Inc. manufactures total artificial heart systems as a bridge to heart transplantation.

• Technology Transfer, Inc. produces a personal arrhythmia monitor.

• Vasomedical, Inc Performing enhanced external counterpulsation, a non-invasive, atraumatic treatment of angina pectoris.

• World Heart Corporation medical device company focused on the development and commercialization of pulsatile ventricular assist devices.