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 6,220* employees.

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

Location Headcount
Berkeley 285
Davis (Campus, ANR & Med Center) 923
Irvine (Campus & Med Center) 334
LBNL 127
Los Angeles (Campus & Med Center) 1,302
Merced 11
Riverside 63
San Diego (Campus & Medical Center) 1,455
San Francisco (Campus & Medical Center) 1,579
Santa Barbara 86
Santa Cruz 55
Total 6,220

*GOA Data, October 2023