Top 50 Public Research University. Florida International University is Miamis public research university, focused on student success. FIU is ranked a top-50 national public university by Washington Monthly. FIU is a top U.S. research university (R1), with more than $200 million in annual expenditures. FIU ranks 15th in the nation among public universities for patent production, which drives innovation, and is one of the institutions that helps make Florida the top state for higher education.