Private Investigative Services · Berkeley, California

We work for lawyers representing individuals and businesses in matters of criminal defense, civil litigation, and due diligence.

For decades, we've delivered critical information to lawyers and businesses in high-stakes, high-profile matters domestically and abroad. Our curiosity, competitiveness, and strategic focus ensures that your case becomes our case.

While we don't discuss our cases publicly, we respond promptly to inquiries about your matter and our experience.

M I G

Mason Investigative Group

Berkeley, California · Since 1992

Begin with a conversation.

All inquiries are treated as confidential. Submitting this form does not create an investigator-client relationship.

Phone

415.265.7357

Office

2430 5th Street, Suite F
Berkeley, CA 94710

"While we don't discuss our cases publicly, we respond promptly to inquiries about your matter and our experience."