Detectives in Walnut, CA

Comprehensive list of private detective agencies and investigators servicing Walnut, CA.

Business Listings

Before you commit to a course of action. Verify the circumstances and the facts. At Applied Facts, our staff of experienced investigators are assembled according to your requirements. This can include lawyers, experienced federal and local law enforcement experts and public information specialists, utilizing the most extensive database resources and state-of-the-art technology.


Trejo Investigations a Sub-rosa specialist will supply you with a complete array of professional and discreet services. We are flexible enough to meet your own individual needs. Whatever difficulties you are experiencing in your individual or business life, we'll be capable to supply an effective solution.


Master PI Detectives. MPI is a licensed private investigative service, committed to serving the investigative requirements of attorneys, corporate executives, insurance firms and the private sector by delivering exemplary results. Hank Foresta is retired from the Los Angeles Police Department after 28 years of service.



WELCOME Gailey Associates. is an expert investigations, litigation and trial support company with worldwide investigative experience. We serve internationally, discreetly, and professionally. We contract with private parties, attorneys, insurance agencies, as well as tiny and huge businesses.


Building on a proud tradition since our establishment in 1927, Krout and Schneider. is one of the oldest and most respected investigation agencies in the US. Krout and Schneider. is a complete-service investigative agency and a leader in service to law companies, the insurance industry and employers of all kinds and sizes.


Thomas Barnes started his investigative career in the early 1980s while still working as a detective for the city of Downey, a suburb of Los Angeles. Shortly thereafter, Thomas was retired from the police department due to a duty related vehicle accident. During his time at Downey Police Department, Thomas was mainly involved in criminal investigations.


Our offices are situated in both Southern and Northern California delivering coverage throughout the whole Golden State. Santiago Rodriguez Jr. is the founder and CEO of the firm and is dedicated to delivering quality and timely information for all of his customers. Each employee is dedicated to upholding these standards.


Escape Investigations is a licensed and bonded complete service detective agency that supplies quality solutions for all of its customers. Our services vary from employment background investigations to complex cases requiring various resources and innovative approaches that produce results with utmost confidentiality.