Diplomat Specialty Pharmacy, Avella Specialty Pharmacy, EnvisionRxOptions, Prime Therapeutics, BioRx, and Amber Pharmacy were among the top 20 companies producing the largest revenue in the health section of the Inc. list.

When sorted by revenue in the health category, 6 of the top 20 companies on the Inc. 5000 list either are specialty pharmacies or offer specialty pharmacy support services.

EnvisionRxOptions and Prime Therapeutics, both of which offer pharmacy benefit management services, snagged the first and second spots, respectively, for revenue in the list’s health category. Both of these companies reported revenue of $2 billion or more in 2012.

Diplomat Specialty Pharmacy was ranked third in the United States for revenue in this category, and Avella followed closely behind, reporting earnings of nearly half a billion in 2012. Two other specialty pharmacies, BioRx and Amber Pharmacy, were among the top 20 earners in the health category.

Although the Inc. list primarily seeks to identify which are the “fastest growing” companies, when vetted by revenue, it is easy to see that the specialty pharmacy industry has a major presence on the list.

Other companies that offer general pharmacy services or support services to specialty pharmacies, including medication therapy management, specialty infusion, and managed care services, also appeared on the list. The following companies were among the top 100 in the health category, when sorted by revenue: VRx, Onco360, Orsini Healthcare, Pentec Health, MedPro Rx, US WorldMeds, MyMatrixx, HealthStat Rx, Camellia Healthcare, Integrated Prescription Management, PharmaHealth Specialty Pharmacy, and TNH Pharmacy II.