(This is an incomplete and out-of-date list) 
U-Wisconsin
U-Michigan
UMASS-Amhurst
UT-Austin
U-Washington
U-Arizona
U-Virginia
Purdue
GaTech
Microsoft
UCSB
UCSD
Georgia Institute of Technology 
IBM Lab
Sun Lab
U-Central Florida 
U-Rochester
U-Virginia 
...

Some published papers (from above groups) using BugBench:
"Flexible Decoupled Transactional Memory Support", to appear in ISCA'08 (from
University of Rochester)
"Effective Memory Protection Using Dynamic Tainting", ASE'07 (from Georgia Institute of Technology) 
"Unified Architectural Support for Soft-Error Protection or Software Bug Detection", PACT'07 (from University of Central Florida)
"Refining Buffer Overflow Detection via Demand-Driven Path-Sensitive Analysis", PASTE'07 (from University of Virginia)
"Dynamic slicing long running programs through execution fast forwarding", FSE'06 (from University of Arizona)
...