Under Martinez v. Combs (2010) 49 Cal.4th 35, Castaneda raised a triable issue of material fact as to whether Ensign was his joint employer by introducing, inter alia, evidence of the following:
Ensign was the sole shareholder of Cabrillo and other companies involved in Cabrillo's operations; these entities shared the same corporate address; they used "centralized information technology, human resources, accounting, payroll, legal, risk management, educational and other key services"; they shared corporate officers; Ensign supervised and controlled Cabrillo's employees' job functions; Ensign provided mandatory policy and training videos at Cabrillo; and Ensign handled employee discipline issues at Cabrillo. Slip op. at 5-9.
The opinion is available here.