Nadal Investigative Services

Licensed Private Investigator, Northern Virginia and DC, Nadal Investigative Services provides a range of private investigations for businesses, law firms, and individuals. Hablamos español.

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Corporate Investigations

Background checks, pre-employment investigations, internal investigations, and more.
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Investigations for Law Firms

Criminal defense investigations, witness location and interviews, process service, and more.
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Domestic Investigations

Matrimonial/infidelity, childcare and eldercare, missing persons, and more.
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Other Services

School & campus safety assessments, estate and probate, uniformed security services, and more.
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Nadal Investigative Services: Who We Are

Our team brings decades of law enforcement and investigative experience to your case.

Nadal Investigative Services provides a complete range of private investigation services in Virginia and the metro DC area, including background checks, litigation support, process service, witness location and witness interviews, matrimonial investigations (infidelity, divorce, pre-marital verification, child custody, asset location), missing persons, insurance and fraud investigations, skip tracing, and surveillance.

Based in northern Virginia, NIS is a fully insured/bonded private investigator firm licensed in Virginia.

Why We Are Different



With decades of law enforcement and investigative experience, NIS Founder Edwin M. Nadal and his associates are highly experienced in private investigations for individuals, companies, law firms, and more.



NIS private investigators do not cut corners – our investigations are conducted with utmost integrity. Thorough documentation and strict adherence to professional ethical standards ensure that any evidence obtained is both reliable and admissible in court.



Our private investigators combine time-tested traditional detective methods with the latest and most up-to-date investigative techniques and technology to ensure that every possible avenue is explored.



We recognize that most cases involving a private investigator are of a sensitive nature. Every case is handled with the highest levels of confidentiality and discretion.

Contact Us

We look forward to assisting you with your case.

NIS is headquartered in Virginia. We are licensed as private investigators in Virginia.



1 (703) 957-9349