Tristar Investigation

We Help Attorneys Prosecute PAGA Cases

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Tristar PAGA Solutions

1.  Employee List Research

We Research and Produce Lists of Aggrieved Employees

  • Is your aggrieved employee list stale or incorrect?
  • Do you need to identify more witnesses and declarants?
  • Struggling to locate employees in transient and short-term jobs?

Our Employee Lists are Accurate and Up-To-Date

  • Our lists include names, addresses, phone numbers and email addresses
  • We identify hard-to-find employees that have low data profiles.
  • We excel in industries such as fast food, labor, agricultural, and retail

2.  Witness Outreach

We Augment Your Outreach Efforts for Active PAGA Cases

  • Overwhelmed by the number of employee witnesses to contact?
  • Need declarations for an upcoming motion or trial on a deadline?
  • Is your staff strained by the time it takes to make contact with witnesses?

We Specialize in Witness Outreach and Interviews

  • Our bilingual team is experienced, friendly, and productive 
  • We put witnesses at ease and motivate them to cooperate 
  • We provide detailed and concise interview summaries

Endorsed By

Matthew J. Matern, Esq.


“Bruce and the team at Tristar have been wonderful to work with. Beyond their professionalism, they produce excellent results, are prompt to respond, and are transparent in their communications with us.

Brian Panish, Esq.


“For over 20 years Bruce Robertson and the team at Tristar Investigation have responded promptly, identified the key issues, and can be relied on to dig deep until the task is accomplished. I would recommend Tristar to any colleague.”

Kane Moon, Esq.


“We value our relationship with Bruce Robertson and the Tristar Investigation team.  They are responsive and always keep us informed.  We can always count on them to deliver excellent results.”

Why Choose Tristar?


Tristar has been serving the California trial bar for over 35 years.  We are privileged to have conducted investigations for over 600 law firms.

Cost Efficient

As a licensed detective agency identifying witnesses for active cases, our fees can be a reimbursable case cost, helping to improve your firm’s bottom line. 


Our services help move PAGA cases along quickly and efficiently.  Our clients praise our consistent productivity, freeing up their time for other tasks.

Interested In Finding Out More?

Schedule a free online video consultation, or give us a call to learn how our services help attorneys prosecute active PAGA cases.