The Research Support Professionals Unit (RX) is a systemwide bargaining unit of non-supervisory research support professionals who provide highly specialized and complex scientific support for researchers throughout the UC system and the Lawrence Berkeley National Laboratory (LBNL). The unit is represented by the University Professional and Technical Employees union (UPTE). Currently, the unit includes approximately 5,420* employees.

An approximate breakdown of the number of Research Support Professionals at each location is as follows:

Location Headcount
Berkeley 272
Davis (Campus, ANR & Med Center) 898
Irvine (Campus & Med Center) 245
LBNL 167
Los Angeles (Campus & Med Center) 1,000
Merced 7
Riverside 77
San Diego (Campus & Medical Center) 1,293
San Francisco (Campus & Medical Center) 1,339
Santa Barbara 82
Santa Cruz 40
Total 5,420

*FTP Data, April 2021