This document lists the ranking of Spanish health insurance companies in 2011 based on number of people insured and premiums collected. The top 3 companies were ADESLAS with over 415,000 people and over 238 million euros in premiums, SANITAS with over 261,000 people and over 162 million euros in premiums, and ASC with over 198,000 people and over 171 million euros in premiums.