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Melbourne's Most Trusted Private Investigators and Detectives

Information is power and often people aren’t completely truthful about their background or activities. Sometimes it is necessary to get an edge by calling in the professionals to reveal the truth about a person, organisation, or situation.

Group One Investigations provides individuals and businesses throughout Melbourne reliable and accurate services. We are results driven, which means our clients’ satisfaction is paramount throughout the process.

Cost effective private detective services for a wide range of situations

Each private investigator in our team has a minimum of ten years’ industry experience, working with both corporate and domestic clients. This high level experience gives us the expertise to offer solutions for a diverse variety of requirements.

Our specialist investigations include but are not limited to the following

  • Surveillance
  • Activity reports
  • Undercover operations
  • Polygraph testing
  • Email tracing and internet based investigations
  • Employee theft investigations and counter measures
  • Fraud investigations
  • Hidden asset location and asset tracing
  • Missing persons
  • Counterfeit and intellectual property investigations
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These include polygraph tests, fraud, missing person searches, employee theft and background checks, and many more vital services. Understanding the complete background of a potential client or employee is important for protecting you’re your business investment and gaining peace-of-mind.

Experience and expertise ensures discreet Melbourne investigations

The highly experienced private investigation team at our Melbourne HQ enables us to work confidentially and without detection. Whether you require our services for basic activity report, or a more complex corporate case, you are assured of the highest levels of professionalism. Our team of highly trained private detectives takes discretion seriously and will not compromise the integrity of the procedure or your identity at any point of the process.

Affordable services for exceptional results

With Group One, cost is far outweighed by the close service and peace of mind you’ll have knowing that your matter is being taken care of by a seasoned professional. We work to provide exceptional value for money, with a dedication to results and providing real and useful information.

We have a network of strategic partnerships around the world, which ensures we aren’t limited to local work and surveillance. Our services are far reaching and from our Melbourne HQ we command investigative resources across the country, and overseas. This scope has helped us deliver detailed reports and genuine intelligence our customers rely on to help them make informed decisions. This is valuable for both businesses who want to gain a competitive edge, as well as private individuals looking for peace-of-mind.

First class service from start to finish

Your private investigator will remain with your case from the moment you engage our services, until completion. This means it will run smoothly and seamlessly, without inefficient handover procedures, lost time or opportunities, or low quality results. Your private detective will be available to travel interstate or overseas, dedicated to following the case through until the end.

Speak to us today for more information

Discover more about the full scope of our services by getting in touch with our team. We will be happy to discuss your requirements and tailor the ideal solution for you. Pick up the phone and call us on 0415 559 943 and our helpful and friendly staff will be happy to devise a plan to help you get the results you need. Alternatively, leave your details in our contact form and we will get back to you as soon as we can.