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Quinn & Associates Confidential Investigations

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Big Enough To Get The Job Done! Small Enough To Care!


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General Info:

Quinn & Associates is a professional investigation service agency located in Southern California. Our private investigators are fully trained and seasoned. Quinn & Associates Confidential Investigations is owned and operated by Frank Quintanar Jr with over 28 years of experience in all types of investigations, undercover work, attorney services and research.   We engage in all types of investigations, civil and criminal.

We engage in all types of investigations, civil and criminal. We are dedicated to providing one of the highest quality investigation service available. We have completed numerous assignments for various clients, insurance companies and attorneys at law and our work has been found to he highly satisfactory.

We take pride in our work. Our reports are factual, accurate, thorough, and are completed and sent out promptly. Recommendations whenever applicable as to the results of our findings are included for your consideration There is no additional charge for rush assignments!


Infidelity Investigations, Surveillance, Corporate Investigation, Indentity Theft, Child Support, Child Custody, Insurance Fraud, Private Investigations, Evesdropping, Locates, Background Investigations, Financial Investigations, Health Care & Elderly Abuse, Cyber Crimes, Child Monitoring and special equipment..

Payment method:
master card, amex, check, discover, visa, debit, paypal

Serving all of California. If you require an out of state private investigator, let us provide you with a reputable referral.

 No Additional Cost For Rush Assignments!
English, Spanish





Quinn & Associates is a proud member of:

  • The California Association of Licensed Investigators
  • The College of Forensic Investigators
  • The American Legion and
  • 82nd Airborne Association  

Quinns Your PI

Process Servers, Security Equipment & Systems Consultants, Private Investigators & Detectives

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Quinn & Associates Confidential Investigations


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Frank didn't double confirm the information which the third party gave to him with me. Frank just gave me some information that was copied down from Google search. Never hire him to investigate.

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Frank, All I have is a glow...

Frank, All I have is a glowing reference for you, I think people here should know how your work, rapid response time, attention to detail, determination, professionalism, and positive mental attitude OUT SHINES ALL OF YOUR COMPETITION!!! I live in Colorado, my fiance arrived from Colombia on a K-1 Fiance Visa and only after a week-and-a-half she disappeared. What do I mean? She left a note saying she was going ... view more

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Quinn and Associates Investiga...

Quinn and Associates Investigations worked on a personal matter for me and they did a great job. I found the work to be highly satisfactory and interesting in their methods. Frank/Owner really did care about my situation and he provided excellent advice from the beginning to the end. S. Abed Brea, California

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I have had the pleasure of wor...

I have had the pleasure of working with Frank Quintanar for more than 12 years, during this time we have learned that we can always count on Frank to come through no matter how difficult the assignment. I have lost count of the number of assignments that Frank has completed for me; his work is always top of the line. I can always count on his integrity, professionalism and honesty. Frank Quintanar is more than a ... view more

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claimed iconBusiness Response.11/30/2011

Thanks Paul for that nice review, I look forward to many more years of working together. Regards, Frank Quintanar Jr Director, Quinn & Associates

This listing has been claimed by a business representative.
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Quinn & Associates Confidential Investigations

215 E. Orangethorpe Ave #339FullertonCA 92832

(866) 652-4480

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Quinn & Associates Confidential Investigations

215 E. Orangethorpe Ave #339FullertonCA 92832

(866) 652-4480

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