CHATSWORTH, Calif.--(BUSINESS WIRE)--IRIS INTERNATIONAL, INC. (NASDAQ: IRIS), a leading manufacturer of automated in-vitro diagnostics systems and consumables for use in hospitals and commercial laboratories worldwide, today announced that FORTUNE Small Business (FSB) Magazine has named the Company to its list of the top 100 fastest growing companies in the United States. IRIS was ranked 80th, the first time the company has been named to the FSB 100.