Private Services

O'Brien & Associates is a full service, licensed and insured private investigation agency founded in 1990 by Ed and Karin O'Brien. They have been involved in law enforcement for over 30 years. O'Brien & Associates currently employs twenty licensed investigators in five states, with additional support staff.

Our licensed personnel and advisory staff offer over 50 years of experience in investigating criminal charges, civil complaints, insurance fraud, and various other financial crimes. We have been involved in parent-locator searches; skip tracing, asset/criminal history searches nationwide, and adoption searches guaranteed.

With personal contacts in every major U.S. city, as well as in-house computer access to millions of databases, and a highly trained staff, we can provide the most efficient and effective results available anywhere. Our rates are extremely competitive, and we have built our reputation on competent, professional, cost effective service with timely results.

General Investigation Services

Our General Investigations are billed at the rate of $65.00 per hour with no mileage or additional costs. Included in this cost is:

  • Criminal Defense Work
  • Surveillances
  • Worker's Compensation
  • Skip Locate
  • Contestable Deaths
  • Wrongful Deaths
  • Product Liability

Other Service Rates

  • Flat Rate Reports
  • Translators - $45
  • Activity Checks - $250.00
  • Process Service - Flat rate based on location. (No mileage or hidden costs)
  • Public Defender Cases - Billed at the State Rate
  • One Day Surveillance - $550.00 (7 days per week)
  • Investigations (Workers Comp. + Property + Casualty) - $299

Our Full-Time Staff Includes

  • Surveillance Specialists
  • Paralegals
  • Registered Nurses
  • Criminal Investigators

With Certifications in the Following

  • Financial Crime Investigations
  • Auto Accident Investigations
  • Computer Fraud
  • Fire Investigations
  • Surveillance Techniques


Our staff specializes in investigations, surveillance, loss prevention, security and process service. Read more.


Our agency specializes in the prevention and detection of fraud in government entitlement programs. Read more.


Our professionals manage in-store security programs focusing on external shoplifting, internal theft and various fraud. Read more.

Event Security  Read more.

Our event staff are highly trained and professional. Contact us for details on how to better secure your festivals.