Clover Health Investments, Corp.

Clover Health sells health insurance plans to people on Medicare, the government health program for people 65 and older. The company offers two types of plans: preferred provider organizations (where you can see any doctor in the network) and health maintenance organizations (where you pick a primary care doctor). Clover also makes software called Clover Assistant that helps doctors identify and treat chronic diseases like diabetes and heart disease. The company started in 2014.