NSI Global Counter Intelligence are specialists in business and corporate investigations. All our agents are fully licensed and qualified. Our agents undergo extensive training and are highly experienced in all types of surveillance investigations.


Our legally qualified investigators manage the full surveillance investigation or probity and background check projects from start to finish. We prepare full legally admissible reports and can present evidence in courts of law as expert witnesses.


Your company may have hired a new employee without conducting thorough background checks on the individual and this individual may in turn cause damage to the company or steal information for the benefit of a third party.


NSI Global Counter Intelligence is a fully licensed, insured, and experienced corporate investigation firm. Our investigators go through a stringent regular training program to ensure we provide our clientele with the latest methodologies and techniques for surveillance.

After 20 years providing professional corporate investigation services in Sydney and Canberra, NSI will give you the peace of mind you are looking for.



How can NSI help you?

First and foremost, we listen to you. Our government licensed specialists will formulate a plan with you to achieve the best possible outcome for your case. We work with you throughout the entire investigation keeping you informed of every development.

In addition to Corporate Investigations, NSI specialises in Counter Intelligence. When engaging NSI, you can rest assured that you are receiving advice and guidance from specialists that operate several levels above any other typical Private Investigation firm in the nation.

We always take on legal matters and provide legally admissible reports.

We can assist in listening device detection and spyware detection.

NSI has been contracted by many Government Departments and Levels of Government, Multinational Corporations, Leading Law firms, and a number of the world’s High Net Worth Individuals

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What type of investigation do you require? Corporate InvestigationIntellectual Property TheftWorkers CompensationWorkplace Fraud & TheftConfirmation of AddressDue Diligence ChecksBackground ChecksElectronic Bug SweepDigital Forensics

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  1. What type of corporate investigations does NSI conduct?

    We can gather evidence for litigation, locate missing persons, workers compensation investigations, corporate fraud investigation, workplace theft investigations, and conduct background checks, just to name a few.

  2. What other corporate security services does NSI perform?

    Our range of corporate and business services include technical surveillance counter measures (electronic bug sweeps), digital forensics, deleted data recovery, spyware and cellular interception detection, cyber security, and information security services.

  3. Am I able to hire an investigator if there is an AVO on me?

    No you can't. If there is an AVO, ADVO, or other court order in place preventing you access to the person you want to investigate, then you are not able to hire an investigator to follow that person.

  4. Can NSI provide evidence for court or the Police?

    We sure can. We have qualified and licensed investigation specialists that understand the legal process and can provide you legally admissible reports and act as an expert witness should the need arise.

  5. Can you use GPS tracking ?

    At NSI we utilise physical private investigation. We do not use GPS trackers as it is a breach of the Surveillance Devices Act, thus making it a offence. Indivials or companies that use these without the persons express or implied knowledge will be breaching this Act.

  6. I think my phone has been hacked, can you help?

    If you have been the victim of data theft, sabotage, or accidental deletion, call us immediately! Our experienced forensic examiners will arrange a private meeting and determine the best course of action to take in order to retrieve your intellectual property, financial data, and trade secrets.