- A&E Detective Group Inc.
- Tarzana
Offers investigative services into matters such as missing persons, background checks, financial investigations, civil litigation, and domestic and forensic data recovery.
www.detective-group.com
- Access Background Checks, Inc.
- Woodland Hills
Includes pre-employment screening.
www.accesschecks.com
- Accurate Credit Bureau
- Pasadena
Provides tenant credit reporting for landlords and real estate agents, as well as employment screening services for small businesses.
www.accuratecredit.com
- Adolescent Guidance Services (AGS)
- Costa Mesa
Special emphasis is placed on locating and returning runaways through non-violent, crisis intervention techniques. Also offers youth transport services to schools, mental health facilities, wilderness programs, social engagements, and judicial facilities.
www.escort-transport.com
- Advance Credit Services
- San Gabriel
Specializing in residential mortgage credit report and tenant screening.
www.1acs.com
- Advanced Electronic Security Company
- Los Angeles
Specializing in countermeasure security including bugsweeps and wiretap detection.
www.bugsweeps.com
- Allstate Investigations
- Chatsworth
Specializing in fugitive recovery, surveillance, background investigations, skip tracing, employee theft, and undercover operations.
www.allstatepi.com
- American Detectives
- Loma Linda
International private investigation firm based in California. Services include surveillance, missing persons, and cheating spouses.
www.americandetectives.net
- American Labor Resources
- Wrightwood
Offering DMV, employer, education, and workers compensation history checking services.
www.amlabor.com
- Ashkelon Group, The
- Los Angeles
Information technology detective agency offering services like email tracing, legal support services, forensic data recovery, counter surveillance, and more in the field of computer crime investigations.
www.ashkelon.net
- Avatar Investigations
- Los Angeles
Offers investigative and consulting services.
www.AvatarInvestigations.com
- Blue Print Investigative Services,
- Van Nuys
Investigation services and specialized consulting.
www.BluePrintPI.COM
- C.J. Ford Private Investigations
- Santa Ana
Offering searches, collections, judgment recovery, accident investigation, paralegal services, and more.
www.cjfordpi.com
- California Business Intelligence
- Camarillo
Personal and business investigations, asset locating, and competitive intelligence.
www.cbintel.com
- Cavasos Investigation Service (CIS)
- Newbury Park
Offering civil, criminal, and commercial investigative services.
www.wedetect.com
- Chameleon Group, The
- Canoga Park
Private investigation and security services. Does everything from asset searches, missing person locates and insurance investigations to commercial, residential, personal and event security.
www.chameleon1.com
- Crutchfield Investigators Inc.
- Beverly Hills
Private investigator. Site includes services, books, and background information.
www.pi4stars.com
- Danny Davis Investigations
- Riverside
Private investigator.
www.ddi-investigations.com
- Dataland
- Los Angeles
Provides legal, financial, and business communities with skip tracing, credit reporting, background verification, asset discovery, and people locating information.
www.1800dataland.com
- Discreet Data Research
- Irvine
Provider of elusive information to collection agencies, attorneys and private investigators.
www.discreetdata.com
- Drug Detection Dogs
- Palm Springs
Private investigation service in Palm Springs, California, that uses drug-detecting dogs to detect illegal substances for the corporate community, concerned parents, and other PIs.
www.narcdogs.com
- Gladding & Michel, Inc.
- Costa Mesa
National and international full-service investigative agency specializing in corporate intelligence, environmental, product liability, and trial work.
www.gladding-michel.com
- Information Resources
- Torrance
Provides background checks and pre-employment screening.
www.informationresources.com
- InformationForBusiness
- Encino
Full service public records information source for skip tracing, asset searches, civil and criminal backgrounds and business filings.
www.info4business.com
- Inter-Agency Investigations
- Beverly Hills
Services include fraud, background, and financial investigations.
www.interagencyLA.com
- Intersec
- Santa Monica
International security consultants.
www.intersecusa.com
- Investigative Resources International
- Long Beach
A professional investigative agency providing comprehensive service to the legal, corporate, insurance, financial and entertainment communities
www.factfind.com
- JCL Enterprises
- Long Beach
Private invesigators and insurance adjusters.
www.jcle.com
- JGI Incorporated
- Newport Beach
Offers investigative and attorney support service.
www.jgipi.com
- Kale Investigation Agency
- Downey
Licensed and bonded agency specializing in lost loves, missing persons, adoptee searches and background checks.
www.kaleinvestigation.com
- Magallanes Associates International (MAI)
- Los Angeles
Corporate security, investigative and training featuring multilingual former FBI Agents.
www.mai-assoc.com
- MCM Investigations
- Newhall
Specializes in surveillance, divorce and child custody matters, and insurance fraud.
www.mcminvestigation.com
- MJM Investigations, Inc.
- Ontario
Specializing in insurance fraud investigations and surveilance.
www.mjminc.com
- Morales and Associates LLC
- Ojai
Specializing in the investigation and counseling of EEO discrimination complaints primarily within the federal sector.
www.moralesandassociates.com
- National Credit and Attorney Resources
- Tarzana
Offers missing person searches, background checks, public records searches, vehicle history reports, and debt collection.
www.usarecordssearch.com
- Roberts & Associates
- Temecula
State licensed firm for criminal, civil, and domestic investigations.
www.investigatorroberts.com
- Scott, Robert, PI
- Los Angeles
Private investigator offering background, fraud, and missing person investigations.
www.robertscottpi.com
- Source Investigative Group
- Redondo Beach
Provides professional, confidential investigations to businesses, attorneys, and the general public.
www.sourceinvestigations.com
- Source, The
- Torrance
Offering pre-employment background investigations and other services for employers.
www.employment-screening.com
- Specialized Investigations
- Van Nuys
Specializes in areas of insurance fraud, suspicious claims, workers' comp, AOE/COE, surveillance, information services.
www.specialpi.com
- Teller Group, The
- Winnetka
Claims management and private investigations firm.
www.tellergroup.com
- Titan Group Professional Investigations
- Redlands
Investigation agency that offers services in cases such as cheating spouse and infidelity, asset searches, civil litigation support, process serving, and GPS monitoring.
www.privateinvestigator911.com
- Tristar Investigation
- Los Angeles
Services include surveillance, locating missing persons, locating assets, service of process, witness statements, and business identification.
www.tristarpi.com
- Truth or Lie
- Glendora
Polygraph examination service that can perform the necessary tests right in your office.
www.truthorlie.com
- USA-FACT, Inc.
- Riverside
Offers online background screening for criminal, credit, and employment history, reference verification, and drug testing services.
www.usafact.com
- V.Y. Harper & Co.
- Culver City
Licensed and insured private investigation and information resource firm with over 25 years of expertise and experience.
www.vyharper.com
- Venezia Investigative Services
- Corona del Mar
Former NYPD Seargent providing nationwide private investigator/detective services.
www.venezia-pi.com
- Verdict Resources
- Camarillo
Specializes in investigative research in the environmental field.
www.verdict.net
- Western Data Research
- San Juan Capistrano
Servicing the mortgage banking industry.
www.westerndataresearch.com
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