Atrion Networking Corporation, a leading provider of information technology and managed services today announces it has been ranked 4th among the list of the top 18 fastest growing technology companies as appearing in the Providence Business News 2009 Book of Lists.

The Book of Lists is an annual compilation of top companies across Rhode Island’s various high-wage, high-demand industries. The 2009 Fastest Growing Technology Companies listing, ranked by 3-year sales growth percentage, moves Atrion up 12 ranks from its previous year’s position of 16 and gives Atrion a 54% sales growth rate since 2005.