Καλιφόρνια Γιουνάιτεντ Στράικερς

The club was founded by Bronwyn & Pete Capriotti and Michael Collins, who have had connections to the adult amateur United Premier Soccer League.

California United FC intended to join the North American Soccer League (NASL) as an expansion franchise for the 2018 season. However, due to the instability of the league, California United withdrew its franchise agreement from NASL in early 2018 and announced that it was exploring all professional league options for the 2019 season. On November 15, 2018, the club was announced as a participant in the 2019 NPSL Founders Cup and as a founding member of a new league to being in 2020.

On March 2, 2019, the team tweeted out their intention to withdraw from the NPSL and NPSL Founders Cup. Three months later, on June 10, 2019, the team was accepted into the National Independent Soccer Association (NISA) as a member for the league's inaugural season.

The club participated in the Western Conference NISA championship in Fall 2019. On November 10, 2019, the team won the 2019 NISA Western Conference championship.