All types of medical professionals, from veterinarians to midwives and eye doctors, need specific supplies to do their jobs. Most medical supplies are bought from niche companies that specialize in a certain type of equipment. Though there are many large medical supply companies, it is quite possible for a small independent medical supply business to find success in this industry. If you're looking to start a retail business and would like to work in the health care industry, consider starting a medical supply company.