Guardian Security & Investigations

At Guardian Security and Investigations Pty, we are proud to provide high-quality professional investigative and security services across Australia, led by our CEO and Director, David Mandrake. With over two decades of hands-on experience in the investigation industry as an American private detective, David is a licensed New South Wales private investigator and security professional. His vision for GSI is to assist every client who seeks our services in finding answers to their questions, resolving concerns, and addressing security-related issues.

Our Mission

Our mission is to provide customized investigation services that cater to the unique needs of our clients. Whether you are an insurance company, self-insurer, solicitor, business, or private individual, we have the expertise to assist you. With a deep understanding of the intricacies involved in various sectors, we offer specialized services tailored to each client's specific requirements. Our investigators get the evidence and proof you are seeking. Rest assured that all our private investigators in Australia are licensed and possess the highest level of skill in their respective fields.

Our Services

We offer a wide range of security services designed to provide optimal protection against potential threats for you and your business. Our services include:

• Surveillance: Our licensed private investigators meticulously assess your specific requirements and design a tailored strategy to achieve the best possible outcome.
• Missing Persons: Our team of highly trained and experienced private detectives possesses exceptional skills and resources to handle complex missing persons cases.
• Process Service: As part of our comprehensive investigative services, we offer assistance in serving court papers and navigating the often complex process of locating and serving individuals.

Why Choose Us?

Whether you require a simple trust or a more complex strategy involving multiple entities, our highly qualified security consultants are ready to provide the best solutions for your asset protection needs. We are always available to discuss the various services we offer and how they can benefit you immediately. We take the time to understand your unique circumstances and tailor our approach accordingly. Our commitment to transparency and open collaboration ensures that you are actively involved throughout the entire process, providing you with peace of mind and confidence in our services.