Best Private Investigators near Pomona, CA

These agencies serve Pomona from nearby bases in towns including Glendora, West Covina and Rancho Cucamonga.

15 agencies listed · 2 open 24/7 · 8 open weekends · 10 rated 4.5+ · 6 show a license

Data verified October 18, 2026

Brapga Security Systems

Brapga Security Systems

4.9 15 reviews
“Very serious company, high-quality securities, my event had no problems thanks to them.”
Serves Los Angeles County, Southern CaliforniaSince 2014Open 24 hours
West Covina, CA · 9 mi from Pomona
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Excaliber Investigations

Excaliber Investigations

5.0 1 review
“Reliable, trustworthy and highly recommended investigated service.”
Serves all of CaliforniaBBB A+Since 1994
La Habra, CA · 14 mi from Pomona
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Tag Force Security & Patrol Services

Tag Force Security & Patrol Services

4.6 3 reviews
Free estimatesServes Los Angeles County, Orange County, San Bernardino CountyLicensedSince 2007
Montclair, CA · 4 mi from Pomona
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Schubert Investigations

Schubert Investigations

5.0 24 reviews
“He took the time to speak with me, keep me updated and reassured me when I was stressed out over my case.”
West Covina, CA · 9 mi from Pomona
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Pyrocop

Pyrocop

5.0 1 review
Since 2005
Rancho Cucamonga, CA · 12 mi from Pomona
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A Pineda Polygraph Services

A Pineda Polygraph Services

4.3 1 review
“Even though I gave him a hard time due to stress was extremely helpful and he possibly saved my marriage of 8 years.”
Se habla españolServes California, United States, internationalOpen 24 hoursSince 1985
Glendora, CA · 8 mi from Pomona
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The 15 agencies on this page are the private investigators listed for Pomona, CA. What each one states about its license, its specialties and the areas it covers comes from its own website; ratings and quotes come from public reviews.

Area overview: Pomona, CA

12 of the 15 agencies on this page have a rating, from 3.9 to 5.0 across 85 reviews; 10 are rated 4.5 or higher. 2 are open around the clock; 8 are open on Saturdays and 5 on Sundays. 6 show a license on their websites and 2 have a BBB rating of A or A+. 10 have ten or more years of experience, the longest 62 years. 2 offer urgent consultations and 1 offers a free initial consultation. We have a website on file for 14 of the agencies on this page; 8 publish a contact page and 7 list a public email. We count these figures across the agencies on this page; hours and prices change, so confirm the details with the agency before you book.

Which investigators listed for Pomona describe their work online?

14 of the 15 agencies on this page have a website on file. Those pages are where an agency states its license, the kinds of investigation it takes on, and whether it works mainly for attorneys, for companies or for private clients. That last point changes how a report gets written.

PAX Investigations

PAX Investigations

5.0 4 reviews
“PAX did an exemplary job on the requested service; consistent, professional communication throughout.”
LicensedSince 2022
San Dimas, CA · 5 mi from Pomona
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Inland Professional Investigations

Inland Professional Investigations

5.0 4 reviews
“If you are seeking a private investigator don't hesitate contacting Inland Professional Investigations.”
LicensedSince 2023
Norco, CA · 8 mi from Pomona
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Fugitive Recovery Agent

Fugitive Recovery Agent

5.0 1 review
Upland, CA · 7 mi from Pomona
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Smarthire

Smarthire

5.0 1 review
Since 1964
Glendora, CA · 8 mi from Pomona
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XPD Investigations

XPD Investigations

California PI license #187940Since 2014
Rancho Cucamonga, CA · 12 mi from Pomona
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Joe Mar Polygraph & Investigation Services

Joe Mar Polygraph & Investigation Services

3.9 4 reviews
“I trusted the results I received because he is an expert in the area of polygraph testing and a really trustworthy person.”
Serves Los Angeles CountyLicensedSince 2019
Claremont, CA · 4 mi from Pomona
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Cobalt Consulting and Investigations

Cobalt Consulting and Investigations

Since 2014
Chino Hills, CA · 8 mi from Pomona
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全美侦探调查 American Professional Investigations

全美侦探调查 American Professional Investigations

California PI license #23349Speaks ChineseServes United StatesSince 2004
Hacienda Heights, CA · 13 mi from Pomona
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EJM Digital

EJM Digital

Since 2008
Fullerton, CA · 15 mi from Pomona
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Why these companies made our list

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