Looking For A Private Investigator in Sydney or Canberra?

Uncertainty is exhausting. Whether it’s doubts about a partner, a person you need to find, or a situation that doesn’t add up, not knowing keeps you stuck. The right information lets you move forward — and getting it lawfully is what makes it useful rather than a liability. That’s the work we do, quietly and professionally.

How We Can Help

  • Surveillance — discreet, professional observation that captures what’s actually happening.
  • Infidelity investigations — clarity and peace of mind when something feels wrong in a relationship.
  • Missing persons — locating people through professional, lawful methods.
  • Background checks — understanding who you’re really dealing with, in personal or business matters.
  • Family law & custody support — evidence to protect children’s wellbeing and support those seeking safety.
  • Digital forensics & device checks — if you suspect a phone has been compromised or a vehicle tracked, our specialists can help.

Request a Confidential Consultation

When you need the truth, you need it handled discreetly and lawfully. NSI Global’s licensed private investigators uncover the facts you need to make decisions with confidence — across Sydney, Canberra and all of NSW & ACT.


Why Choose NSI Global

Lawful methods only.

We use professional surveillance and research — never GPS trackers, phone access or illegal recording. Only lawfully-obtained evidence holds up and keeps you protected.

Court-admissible reports.

Our investigators are legally qualified and our reports meet the standard required for legal proceedings, with expert witness testimony available.

A secure office you can visit.

Meet us at our radio-shielded, 24-hour-secured premises at Parramatta — a genuinely private place to talk.

Two decades of discretion.

Trusted by law firms, government departments and corporations, with a mutual NDA as standard.

Sydney, Canberra and beyond.

We operate across the Sydney metro, the Central Coast, Newcastle, Wollongong, the Blue Mountains and throughout NSW, plus Canberra and the ACT.

How We Work

So you always know where things stand:

One point of contact.

A dedicated liaison keeps you informed — our field investigators stay focused on the case.

Regular, structured updates.

You'll receive a written summary on every active day — including quiet days, so you're never left wondering.

Transparent, upfront pricing.

Our packages are charged upfront, so there are never surprise bills. If a case needs more time, we agree the additional hours with you and charge them upfront too — you stay in full control of the cost.

Realistic and honest.

We can't promise a particular outcome — only diligent, lawful, professional effort, and a straight account of how it's tracking.

Ready To Find The Truth?

Talk to us in confidence — no obligation. We’ll listen, tell you honestly whether we can help, and explain exactly how we’d approach it.

Request a Confidential Consultation


Frequently Asked Questions

How often will I hear from you?

On any day we conduct active work, your liaison sends a written summary — including on quiet days, so you always know where things stand. Enhanced update options are available if you'd like more frequent contact.

Will my information stay confidential?

Yes. We work with highly sensitive matters every day. All staff sign NDAs, and we put a mutual NDA in place with every client.

How long does it take, and how much does it cost?

It depends on the case and how much we have to start with. We'll give you an estimate of time and cost at your consultation, and you stay in control through a deposit you can monitor.

I think my phone is hacked or my car is tracked — can you help?

Yes. Our digital forensic and technical surveillance counter-measures specialists can detect hidden tracking, listening and camera devices, and spyware on phones. Contact us.

Can I hire an investigator if there's an AVO involving me?

No. If a court order restricts your contact with someone, we cannot investigate that person on your behalf.

Can you provide evidence for court or police?

Yes. Our licensed specialists understand the legal process and can provide legally admissible reports and act as expert witnesses if needed.

Do you use GPS trackers?

No. Placing a tracker without the person's knowledge breaches the Surveillance Devices Act. We conduct lawful physical surveillance and research only — anything else risks your case and your liability.

Industry Heavyweights and Government Departments Trust NSI Global

You can have the same peace of mind.

We invite you to make an appointment for a confidential discussion at our radio shielded, secure office in Parramatta. This location is under 24 hour surveillance and has been fortified against bugging technology to ensure your privacy.

NSI Global will not interfere nor accept any job or assignment for a client that is the subject of any law enforcement investigation.

1300 000 NSI (674)

Secure your peace of mind