For a number of years, Mark Hill and Guri Sohi of the University of Wisconsin have maintained an informal “Hall of Fame” for the International Symposium on Computer Architecture, based on the (admittedly imperfect) metric of having co-authored 8 or more papers that have appeared in this premier venue for computer architecture research.
Stanford, the University of Illinois, the University of Michigan, the University of Washington, and the University of Wisconsin each have 5 members. Microsoft Research has 4. The University of Texas has 3. HP Labs, UC Berkeley, UCSB, and the University of Colorado each have 2. CMU, MIT, and a dozen other institutions each have one. See the list here.