These research units involve faculty and projects at several or all of the ten UC campuses. An emphasis is placed on research, conferences, and lectures in collaboration with the other universities. See also National Institutes & Centers, Organized Research Units, MultiCampus Research Units, and the complete alphabetized list of all research units.

• California NanoSystems Institute
  
  Center for Nanoscience Innovation for Defense
  Center for Spintronics and Quantum Computation
  Western Institute of Nanoelectronics
   
• Intercampus Research Program on Mexican Literary and Cultural Studies
  (UC Mexicanistas)
   
• Subaltern-Popular Workshop
   
• Transliteracies (UCMRG)
   
• UC Institute for Research in the Arts (MRU)
   
• UC Linguistic Minority Research Institute (MRU)
   
• UCSB Natural Reserve System
  
  Carpinteria Salt Marsh Reserve
  Coal Oil Point Reserve
  Kenneth S. Norris Rancho Marino Reserve
  Santa Cruz Island Reserve
  Sedgwick Reserve
  Valentine Eastern Sierra Reserve (includes Sierra Nevada Aquatic Research Laboratory and Valentine Camp)