Markel Corporation is a specialty property and casualty insurance company headquartered in Richmond, Virginia. Markel started its operations in 1930 by writing insurance for makeshift taxi cabs, also known as jitneys, in Virginia. Over the following decades the company grew along with the growing transportation industry as the country developed automobiles trucks and interstate highways. The company went public in 1986. At that time it had a market capitalization of $35 million. As of this writing its market capitalization is around $12 billion. Click here to read the rest.