California Investigation Services
This web page lists investigation services and private investigators in California. Before visiting any of these California investigation services and private investigators, be sure to verify their address, hours of operation, and appointment policies (if applicable). An investigation service provider may have ceased operations or moved to a different location, and business hours can sometimes be irregular, especially on and around holidays. So a quick phone call can often save you time and aggravation.
Related directory pages are highlighted below the California investigation service provider listings on this page. Links to Investigation Service directory pages for adjacent States are provided at the bottom of the page. California directory and map page links are also included there.
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A Plus Investigations Beverly Hills, California 90211 1-310-925-0740 apluspi.com
Located in Los Angeles County
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Action Response Team Bakersfield, California 93305 1-661-631-9580 www.actionresponse.com
Located in Kern County
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Action Safety Education Nipomo, California 93444 1-805-929-0921 www.actionedu.com
Located in San Luis Obispo County
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Advanced Chemical Safety Inc San Diego, California 92111 1-858-874-5577 www.chemical-safety.com
Located in San Diego County
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Alarm Financial Service Corte Madera, California 94925 1-415-927-5315 alarmfunding.com
Located in Marin County
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All Guard Systems Inc Hayward, California 94545 1-510-887-7055 www.allguardsystems.com
Located in Alameda County
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Allmed Systems Inc Pleasanton, California 94588 1-925-468-0433 allmedsys.com
Located in Alameda County
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American Corporate Security Stockton, California 95207 1-209-478-9890 amcorpsec.com
Located in San Joaquin County
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AMI Investigations Salinas, California 93906 1-831-754-2234 www.amiinvestigations.com
Located in Monterey County
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Andrus Audio El Cajon, California 92020 1-619-596-1287 www.andrusaudio.com
Located in San Diego County
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Backtrack Unlimited Oceanside, California 92056 1-760-945-7800 www.backtrackunlimited.com
Located in San Diego County
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Behavioral Science Technology - John H Hidley MD Ojai, California 93023 1-805-646-0166 www.bstsolutions.com
Located in Ventura County
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Benchmark Investigations San Juan Capistrano, California 92675 1-949-248-7721 www.benchmarkinvestigations.com
Located in Orange County
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Brandenburger & Davis Sacramento, California 95827 1-916-483-5800 www.brandenburger-davis.com
Located in Sacramento County
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Bright Star Security Inc Novato, California 94948 1-415-883-2200 www.brightstarsecurity.com
Located in Marin County
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California Investigation Services Woodland Hills, California 91364 1-818-704-9925 www.calipi.com
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Carco Group Inc Tustin, California 92780 1-714-547-6541 carcogroup.com
Located in Orange County
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Chris Cook & Associates McKinleyville, California 95519 1-707-839-7422 www.cookandassociatespi.com
Located in Humboldt County
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Collective Intelligence Inc Sherman Oaks, California 91403 1-818-788-7015 www.collintel.com
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Compliance First Inc Placentia, California 92870 1-714-572-4410 compliancefirst.com
Located in Orange County
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Copeland Investigations San Martin, California 95046 1-408-776-7624 copelandinvestigations.com
Located in Santa Clara County
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Corporate Travel Safety Calabasas, California 91302 1-818-225-1991 corporatetravelsafety.com
Located in Los Angeles County
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Creative Security Company San Jose, California 95110 1-408-295-2600 www.creativesecurity.com
Located in Santa Clara County
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Crisis Consulting INTL Ventura, California 93004 1-805-647-4329 cricon.org
Located in Ventura County
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D F Polygraph San Dimas, California 91773 1-909-971-9343 dfpolygraph.net
Located in Los Angeles County
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D&R Legal Process Service LLC Fremont, California 94538 1-510-797-9996 www.drlegalprocess.com
Located in Alameda County
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Dakota Michaels Investigations Studio City, California 91604 1-661-242-1788 www.dmispy.com
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DCW & Associates Huntington Beach, California 92647 1-714-892-0442 www.dcwpi.com
Located in Orange County
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Delta Protective Services Stockton, California 95202 1-209-547-2980 www.deltaprotectiveservices.com
Located in San Joaquin County
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Di Pietro & Associates Grass Valley, California 95945 1-530-477-6818 dipietroassociates.com
Located in Nevada County
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Digital View Morgan Hill, California 95037 1-408-782-7773 digitalview.com
Located in Santa Clara County
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Diversified Risk Management Inc Los Angeles, California 90036 1-323-934-2634 www.diversifiedriskmanagement.com
Located in Los Angeles County
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Dixon Risk Service Inc Solvang, California 93463 1-805-693-8493 dixonrisk.com
Located in Santa Barbara County
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Donald I Bender Berkeley, California 94708 1-510-527-5675 theirwords.com
Located in Alameda County
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Electronic City Inc Burbank, California 91505 1-818-842-5275 www.electroniccity.com
Located in Los Angeles County
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Emergemcy MGMT & Safety Solut San Francisco, California 94131 1-415-643-4300 www.ems-solutionsinc.com
Located in San Francisco County
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Emergency Medical Service Solutions San Francisco, California 94131 1-415-643-4300 www.ems-solutionsinc.com
Located in San Francisco County
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Empire Intelligence, Inc. Los Angeles, California 90024 1-800-640-9842 www.empireintelligence.com
Located in Los Angeles County
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Enviro Safetech San Jose, California 95131 1-408-943-9090 www.envirosafetech.com
Located in Santa Clara County
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Environmental Outsource Inc Los Angeles, California 90040 1-323-728-4492 environmentaloutsource.com
Located in Los Angeles County
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Estate Research Associates San Ramon, California 94583 1-925-355-1100 estateresearch.com
Located in Contra Costa County
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Excaliber Investigations Whittier, California 90607 1-562-697-6747 excaliberinvestigations.com
Located in Los Angeles County
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First On Compliance Los Banos, California 93635 1-209-826-5103 www.firstoncompliance.com
Located in Merced County
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First Trust Alarm Company Hollister, California 95023 1-831-636-1470 firsttrustalarm.net
Located in San Benito County
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Fresno County Private Security Fresno, California 93704 1-559-233-9800 fresnosecurity.us
Located in Fresno County
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G A B Investigations Pleasanton, California 94566 1-925-846-7401 www.gabinvestigations.com
Located in Alameda County
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Gab Investigations Pleasanton, California 94588 1-925-846-7401 gabinvestigations.com
Located in Alameda County
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Garrett & Associates, CA Lic# PI14494 Beverly Hills, California 90210 1-310-226-7134 www.ggarrettassociates.com
Located in Los Angeles County
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Gary L Ermoian Investigations Modesto, California 95352 1-209-521-9327 www.ermoian.com
Located in Stanislaus County
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Gaslamp Quarter Investigations San Diego, California 92101 1-619-239-6991 www.pimuseum.com
Located in San Diego County
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Get Safe Personal Safety Santa Ana, California 92705 1-714-834-0050 getsafeusa.com
Located in Orange County
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Gladding & Michel Inc Burlingame, California 94010 1-650-692-1140 www.gladding-michel.com
Located in San Mateo County
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Gregg Stutchman & Associates Napa, California 94559 1-707-257-0828 forensicaudiovideo.com
Located in Napa County
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Guard Systems Inc Ontario, California 91761 1-909-947-5400 www.guardsystemsinc.com
Located in San Bernardino County
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Guardian Security Agency Concord, California 94520 1-925-356-3034 www.guardiansecurityagency.com
Located in Contra Costa County
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Hollister Process Service Hollister, California 95023 1-831-634-1479 www.californiarps.com
Located in San Benito County
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Home Safety Service Inc San Mateo, California 94404 1-650-571-7774 homesafety.net
Located in San Mateo County
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INTEGRITY GROUP Pleasanton, California 94566 1-925-484-4911 www.IntegrityGroup.us
Located in Alameda County
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Inter-Agency Investigations In Beverly Hills, California 90211 1-323-651-0700 interagencyla.com
Located in Los Angeles County
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Investigation Logic San Francisco, California 94102 1-415-627-9117 www.investigationlogic.com
Located in San Francisco County
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IQ Data Systems Sacramento, California 95811 1-916-266-0620 iqdata.com
Located in Sacramento County
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ISS Network Claremont, California 91711 1-909-399-1198 www.capiconnection.com
Located in Los Angeles County
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J H Askins CO Inc San Francisco, California 94134 1-415-468-0330 www.askinsco.com
Located in San Francisco County
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J R Investigations Woodland Hills, California 91364 1-818-704-9925 calipi.com
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Jadtec Security Service Orange, California 92867 1-714-282-0121 www.jadtec.com
Located in Orange County
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John L Taylor & Associates Private Investigations Santa Barbara, California 93101 1-805-964-2089 www.jtaylorpi.com
Located in Santa Barbara County
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K Tech Securities San Diego, California 92102 1-619-858-5832 www.k-techsecurity.com
Located in San Diego County
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K-9 Security & Detection Int'l LLC Perris, California 92570 1-909-780-5810 www.k-9companions.com
Located in Riverside County
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Ken Mac Donell Investigations Marina Del Rey, California 90292 1-310-822-2414 kmi-inc.com
Located in Los Angeles County
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KWA Safety & Hazmat Consultants El Dorado Hills, California 95762 1-530-622-7196 www.kwasafety.com
Located in El Dorado County
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LCI Service Temecula, California 92589 1-951-695-7540 lciservices.com
Located in Riverside County
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Life Safety Associates San Jose, California 95131 1-408-573-1900 www.lifesafety.com
Located in Santa Clara County
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Lindstrom & Associates Jackson, California 95642 1-209-223-1444 cga27.com
Located in Amador County
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Litigation Advantage Los Angeles, California 90010 1-213-388-2654 litigationadvantage.com
Located in Los Angeles County
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Litigation Advantage Beverly Hills, California 90210 1-213-388-2654 www.litigationadvantage.com
Located in Los Angeles County
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M H Chew & Associates Inc Livermore, California 94550 1-925-443-5071 mhchew.com
Located in Alameda County
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Mc Grew & Associates Inc San Jose, California 95128 1-408-246-8585 www.mcgrewpi.com
Located in Santa Clara County
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MCM Investigations Newhall, California 91321 1-661-259-5434 www.mcminvestigation.com
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Mercantile Systems & Surveys Brentwood, California 94513 1-925-679-2600 mercsystems.com
Located in Contra Costa County
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Mercury Security Corporation Long Beach, California 90815 1-562-986-9105 www.mercury-security.com
Located in Los Angeles County
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Merit Security PC Redwood City, California 94063 1-650-366-0100 www.meritsecurity.com
Located in San Mateo County
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Metro Video Systems Inc El Segundo, California 90245 1-310-640-9250 www.metrovideosystems.com
Located in Los Angeles County
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Millennium Alarm Systems Inc Los Angeles, California 90045 1-310-337-1108 millenniumalarmsystems.com
Located in Los Angeles County
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Montano & Associates International Investigations Walnut Creek, California 94596 1-925-947-1212 www.nickmontano.com
Located in Contra Costa County
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North Coast Patrol Vista, California 92084 1-760-940-2776 www.northcoastpatrol.com
Located in San Diego County
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Nosek Investigations Redwood City, California 94063 1-650-368-2716 www.sfbaysleuth.com
Located in San Mateo County
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Nova Vita Accident Control Mount Shasta, California 96067 1-530-926-5071 www.bettertrees.com
Located in Siskiyou County
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Occupational Safety Inc Chino, California 91710 1-909-468-3602 ostsinc.com
Located in San Bernardino County
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Ontel Security Service Modesto, California 95354 1-209-521-0200 www.ontelsecurity.com
Located in Stanislaus County
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Owens & Associates Investigations San Diego, California 92110 1-619-297-1343 www.owenspi.com
Located in San Diego County
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Pacwest Security Service Costa Mesa, California 92626 1-714-429-1300 www.pacwestsecurity.com
Located in Orange County
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Parrent Smith Investigations Los Angeles, California 90077 1-310-275-8619 www.psinvestigates.com
Located in Los Angeles County
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Passanisi Investigations San Francisco, California 94114 1-415-703-9888 www.passanisi.com
Located in San Francisco County
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Paula Drake Investigations Palo Alto, California 94303 1-650-857-9465 www.childcustodycop.com
Located in Santa Clara County
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Perez Investigations Martinez, California 94553 1-925-934-5543 www.perezinvestigations.com
Located in Contra Costa County
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Personal Investigations Woodland Hills, California 91364 1-818-703-1720 personalinvestigations.net
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Public Interest Investigation Los Angeles, California 90017 1-213-482-1780 www.piila.com
Located in Los Angeles County
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Public Safety Training Consultant Redwood City, California 94065 1-650-595-5202 pstc911.com
Located in San Mateo County
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RA Consulting Santa Ana, California 92705 1-714-543-3131 raconsulting.us
Located in Orange County
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Rank Investigations Modesto, California 95354 1-209-526-2025 www.rankinv.com
Located in Stanislaus County
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Rayco Security Inc Van Nuys, California 91406 1-818-779-0900 raycosecurity.com
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Research, Consulting & Investigations Corp Torrance, California 90509 1-310-729-6741 www.rcicorp.com
Located in Los Angeles County
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Safe Mart Gardena, California 90249 1-310-516-0224 www.thesafemart.com
Located in Los Angeles County
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Safety Compliance Management San Ramon, California 94583 1-925-362-2265 www.scm-safety.com
Located in Contra Costa County
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Safety Unlimited Inc Simi Valley, California 93065 1-805-306-8027 www.safetyunlimited.com
Located in Ventura County
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Safework Inc Woodland Hills, California 91367 1-818-716-0384 safeworkinc.com
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Screen International Security Beverly Hills, California 90212 1-310-274-3740 www.sissltd.com
Located in Los Angeles County
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Sean Ditty Investigations Redding, California 96003 1-530-949-7511 www.seandittyinvestigations.com
Located in Shasta County
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Security Concepts Brentwood, California 94513 1-925-308-7677 www.brentwoodcaraudio.com
Located in Contra Costa County
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Security Design Concepts Orange, California 92867 1-714-997-1084 www.securitydesignconcepts.com
Located in Orange County
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Skybox Security Inc San Jose, California 95110 1-408-441-8060 skyboxsecurity.com
Located in Santa Clara County
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Sovereign Investigation Ventura, California 93003 1-805-650-0624 sovereign-inv.com
Located in Ventura County
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Staff Professional Inc San Diego, California 92108 1-619-544-1774 staffpro.com
Located in San Diego County
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Sterling & Associates Inc Milpitas, California 95035 1-408-262-1656 www.rsterling.com
Located in Santa Clara County
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Sunrise Investigative Service Sacramento, California 95818 1-916-454-4642 needaninvestigator.com
Located in Sacramento County
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Superior Alarm Systems Canoga Park, California 91304 1-818-700-7100 www.sassecurity.com
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Swift Attorney Service Redwood City, California 94063 1-650-364-9612 www.swiftattorneyservice.com
Located in San Mateo County
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Tactical Surveillance & Investigations Bakersfield, California 93312 1-661-588-6560 www.bakersfieldPI.com
Located in Kern County
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TAL Global Corporation San Jose, California 95113 1-408-993-1300 www.talglobal.com
Located in Santa Clara County
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Technical Safety Service Berkeley, California 94710 1-510-845-5591 www.techsafety.com
Located in Alameda County
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TLG Inc. Newark, California 94560 1-800-792-9384 www.tlg-inc.com
Located in Alameda County
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Trojan Systems Inc Livermore, California 94551 1-925-245-1510 trojansystems.com
Located in Alameda County
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Van Ditmarsen Investigations Redding, California 96099 1-530-244-5681 www.reddingpi.com
Located in Shasta County
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VAP Research Service West Sacramento, California 95691 1-916-761-9262 vap007.com
Located in Yolo County
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Vetter Investigations Inc. Burbank, California 91501 1-818-848-4333 www.vetterinv.com
Located in Los Angeles County
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Video Security Solutions Anaheim, California 92805 1-714-956-5681 www.videosecurityonline.com
Located in Orange County
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Williams Investigations Gridley, California 95948 1-530-846-2644 www.jwpi.com
Located in Butte County
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Woodside Patrol Portola Valley, California 94028 1-650-851-1523 www.woodsidepatrol.com
Located in San Mateo County
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World Eye CAM Lake Forest, California 92630 1-949-305-6550 www.worldeyecam.com
Located in Orange County
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Investigation Services in Adjacent States
California Directory and Map Pages
- California Directory - California regional directory.
- California Map - state maps of California.
Related California Page(s)
California Security Consultants |
California Security Systems |
California Alarm System Dealers |
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129 investigation services and private investigators listed in California.