869 E. Schaumburg Road Suite 376 Schaumburg, IL 60194
Contact Us: 800-960-NSIU (6748)
Insurance Fraud
Investigative services for insurance & risk management professionals to prevent or uncover fraud.
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Private Services
Covert Investigations for divorce, family law, corporate, or other private matters.
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The Ultimate choice for all types of investigations:

National Special Investigations Unit(NSIU) is a leading agency amidst nationwide investigation agencies; specializing in insurance fraud investigation, infidelity investigation, cohabitation, civil investigations and even criminal investigations. We are amongst the top private investigations firms in the country. Our investigators are equipped with state of the art technology and trained for challenging cases, and it is the quality of services that we provide, that separate us from other investigation companies.

Our services as a surveillance company are highly client centric, and our customers are always our priority. Each investigation is catered to achieving the most definitive, court ready results completed in a timely manner.

Our SIU department offers concrete solutions to combat insurance fraud for Workers' Compensation, Disability, Liability, and Property claims with services including surveillance, medical records canvasses, statements, activity checks, alive and well checks, and many others. For over 20 years, these services have produced industry-leading results for our clients.

The Private Services Division caters to personal clients, offering investigations into infidelity, child custody, cohabitation, asset investigation, background checks, and missing persons. It also provides corporate clients with undercover operations, FMLA Investigations, theft investigations, and other unique solutions. Fully licensed and insured, National SIU is the answer for all of your investigative needs.