Detectives in Vallejo, CA

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

Business Listings

MAXWELL has offered investigative services of the best quality since 1986. We investigate high exposure and complex matters in the Public and Private sector workplace/HR arena. Our investigations are conducted in a thorough, tactful manner. Our reporting is comprehensive, factual and timely.


Zap Investigations and Protective Services supplies private security services for all your individual and professional requirements. We can supply 24hr protection for your loved ones. Our services include background checks, skip tracing, lost loved ones found as well as meeting your overall security requirements. Our dedicated professional team consists of current and former law enforcement officers.


ICU is a private investigation firm with dedicated and discreet specialists with years of law enforcement experience. Our customers include individuals, law companies and government agencies. Our services include: Background Investigation Internal Affairs Missing Person Skip Tracing Record Searching We provide additional services suited to suit your specific requirements.



Detecting resume fraud, criminal convictions and past terminations before job candidates are hired is critical. Cobalt Investigations assists you screen applicants speedily and securely, delivering you accurate information needed to make an informed hiring decision.


International Security Services is a regional security corporation with international capabilities. We aim to provide the best degree of professionalism and corporate ethics. Training and experience enables us to supply you with quality security services. Our customer retention reflects the quality of our services and the satisfaction of our customers.


Perez Investigations supplies a one-stop solution for all workers' compensation and liability cases. Perez Investigations is Northern California's premier supplier for Sub-Rosa and AOE/COE investigations of workers' compensation matters. We have been responsible for numerous criminal fraud convictions in this field.


Situated in the Bay Area of California, J.D. MAURER & ASSOCIATES is a complete service private investigation agency delivering professional, confidential investigative services to attorneys, corporations, insurance firms, tiny businesses, and the general public throughout the Livermore area of California and nationwide.


Investigative Consultants International. ICI is an expert investigation company established in 1978 by Philip J. Stuto. In 1967, Mr. Stuto began his career as a Southern Pacific Transportation Company Claims Adjuster, wherein he received extensive training in investigative techniques: witness statements; medical terminology; photography; surveillance; diagrams; and specialized in the settlement of