Healthcare companies are organizations that provide medical services, manufacture medical equipment, or develop pharmaceuticals. They play a crucial role in maintaining public health by offering treatments, conducting research, and ensuring access to necessary healthcare resources. Examples include hospitals, clinics, and pharmaceutical firms like Pfizer and Johnson & Johnson. These companies can be categorized into various sectors, such as health insurance, medical devices, and biotechnology. They work to improve patient outcomes and advance medical knowledge through innovation and technology. By collaborating with healthcare professionals, they aim to enhance the quality of care and address health challenges faced by communities.