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Quinn & Associates Confidential Investigations

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

215 E Orangethorpe Ave # 339, Fullerton, CA 92832


Today: Open 24 Hours

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

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!

Regular Hours
Mon - Sun:
Process Servers, Private Investigators & Detectives, Security Equipment & Systems Consultants

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 Options

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  
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