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Private Investigators in Ontario, CA

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About Search Results

YP - The Real Yellow PagesSM - helps you find the right local businesses to meet your specific needs. Search results are sorted by a combination of factors to give you a set of choices in response to your search criteria. These factors are similar to those you might use to determine which business to select from a local Yellow Pages directory, including proximity to where you are searching, expertise in the specific services or products you need, and comprehensive business information to help evaluate a business's suitability for you. “Preferred” listings, or those with featured website buttons, indicate YP advertisers who directly provide information about their businesses to help consumers make more informed buying decisions. YP advertisers receive higher placement in the default ordering of search results and may appear in sponsored listings on the top, side, or bottom of the search results page.

Please contact the business for updated hours/services due to the COVID-19 advisory.

Blue Knight Global Services

1. Blue Knight Global Services

(747) 226-3099

Calabasas, CA 91302


Outstanding company to work for! The staff is always professional. They always pay on time with no issues.

Associated Investigation LTD

2. Associated Investigation LTD

(800) 720-8955

Serving the
Ontario Area


Recently, we need to locate an individual and we had very little information. We turned the matter over to Associated Research and were delighted…

Roman PI

3. Roman PI

(888) 309-0392

Serving the
Ontario Area


I hired Frank to locate someone that I had been trying for 5 months to find on my own. He located the person in an hour! I strongly recommend Roman…

Crown Pointe Investigations

4. Crown Pointe Investigations

(877) 252-4150

12223 Highland Ave Ste 106
Rancho Cucamonga, CA 91739

From Business: Located in Southern California, Crown Pointe Investigations is a premier investigative agency in California striving to achieve results that exceed our clients…

AAA Credit Bureau

5. AAA Credit Bureau

(844) 775-4536

Serving the
Ontario Area

From Business: AAA CREDIT BUREAUAAA Credit Bureau has been providing credit, criminal and eviction reports for landlords since 1990. We offer two types of reports: basic credit…

Corinthian Group

6. Corinthian Group

(909) 931-3595

Ontario, CA 91764

From Business: Our Investigator's primary interest is to ensure that all of our clients are provided with a discreet and well managed case. Our clients appreciate that they can…

Agency of Investigations Recon

7. Agency of Investigations Recon

(877) 687-3939

3175 Sedona Ct
Ontario, CA 91764

Kalla & Associates

8. Kalla & Associates

(909) 947-3543

1456 E Philadelphia St
Ontario, CA 91761

Tom Wilson & Associates

9. Tom Wilson & Associates

(909) 489-3905

2601 S Bon View Ave
Ontario, CA 91761

Southwest Detective Agency

10. Southwest Detective Agency

(909) 930-2973

3045 S Archibald Ave
Ontario, CA 91761

Advanced Private Investigations

11. Advanced Private Investigations

(877) 259-2470

4451 Ontario Mills Pkwy Ste F
Ontario, CA 91764

Double O Academy

12. Double O Academy

(909) 945-3113

4451 Ontario Mills Pkwy Ste F
Ontario, CA 91764

Elite Surety Investigations US

14. Elite Surety Investigations US

(909) 613-1465

12598 Central Ave
Chino, CA 91710

Moreno Investigations

15. Moreno Investigations

(909) 590-4377

12930 Central Ave
Chino, CA 91710

TRM Investigations and Recovery, Inc.

16. TRM Investigations and Recovery, Inc.

(909) 702-8203

433 N 3rd Ave
Upland, CA 91786

From Business: TRM Investigations and Recovery provides professional Investigative Services in the business of locating hard to find assets and an aggressive approach to the…

Maye Investigations

17. Maye Investigations

(909) 949-4000

1620 W 9th St
Upland, CA 91786

Roger Garcia Investigations

18. Roger Garcia Investigations

(909) 946-3500

134 N 2nd Ave
Upland, CA 91786

Melendez & Associates

19. Melendez & Associates

(909) 981-2111

123 E 9th St Ste 303
Upland, CA 91786

Watchman Investigations

20. Watchman Investigations

(909) 946-1065

333 E Arrow Hwy
Upland, CA 91785

Robert Harris

21. Robert Harris

(909) 946-1065

333 E Arrow Hwy
Upland, CA 91785


22. A P I

(909) 931-0562

400 N Mountain Ave
Upland, CA 91786

Xl Investigations Inc

23. Xl Investigations Inc

(909) 628-9574

6651 Hamilton St
Chino, CA 91710

J R Investigative & Security

24. J R Investigative & Security

(909) 276-0282

255 W Foothill Blvd
Upland, CA 91786

Mgt Investigative Services

25. Mgt Investigative Services

(909) 981-2874

1042 N Mountain Ave # B-380
Upland, CA 91786

Reliant Investigations Inc

26. Reliant Investigations Inc

(909) 944-3095

9330 7th St
Rancho Cucamonga, CA 91730

JLR Investigations Corp

27. JLR Investigations Corp

(909) 727-3100

9375 Archibald Ave
Rancho Cucamonga, CA 91730

Caller Private

28. Caller Private

(909) 945-1519

8291 Avenida Leon
Rancho Cucamonga, CA 91730

Serrato & Associates Inc

29. Serrato & Associates Inc

(909) 548-7799

6780 Angelina Ct
Chino, CA 91710

Ecmc Diversified Inc

30. Ecmc Diversified Inc

(909) 851-2742

13631 Hammer Ave
Chino, CA 91710

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