Sudbury-based. Provincially trusted.

Founded to bring world-class investigative work to Northern Ontario — without the wait, the markup, or the travel fees. T.R.I.O. is the only locally-based licensed private investigation firm in Greater Sudbury, serving insurance, corporate, legal, and private clients across the province.

Chris Dowdall — President & Director of Operations

T.R.I.O. is a Canadian company owned and operated by founder and president Chris Dowdall, who has over 30 years of experience as a Private Investigator. With this experience, Chris trains, supervises and continually evaluates all employees, ensuring that the company continues to provide top-quality results to its clients.

Our mission

To provide unparalleled private investigative services tailored to meet the unique needs of our clients. Committed to the highest standards of integrity, professionalism and discretion, we deliver accurate and reliable information that empowers clients to make informed decisions. We are dedicated to solving complex cases with precision and efficiency, and to being the trusted ally and expert resource for individuals, businesses, and legal professionals seeking the best private investigators in Greater Sudbury.

Our vision

As the leading Private Investigation Agency in Greater Sudbury, ON, our vision is to set the benchmark for excellence in the industry. We aspire to be recognized for our unwavering commitment to client satisfaction, ethical conduct, and the relentless pursuit of truth — through innovative approaches, modern technology and a highly skilled team.

Protecting your investments & establishing the truth

True Reliable Investigations Ontario Inc. (T.R.I.O. Investigations) is Northern Ontario's preferred investigation agency and the only company based in Sudbury. We provide surveillance and investigative services to the insurance, corporate, criminal, and legal sectors, as well as to private individuals. The president, Chris Dowdall, has a reputation for offering consultations with integrity — then, if needed, quality service.

Being based in the centre of Northern Ontario — where there are numerous remote communities and everyone knows each other — T.R.I.O. is specialized in conducting rural and country surveillance. Other companies based in Southern Ontario parachute inexperienced people into the North who try to conduct surveillance the same way they would in a city. However, this is usually met with negative results. Our team's proven results come from deep knowledge of the area and local contacts in several small communities and reservations across the North. That saves you time and money in getting the evidence you need.

Every company, large or small, and every person will encounter difficult situations at one time or another. When this occurs, experts are needed to establish the truth, gather and secure all the evidence possible, protect assets, and ensure the facts are presented with integrity in a professional and credible manner. T.R.I.O. is known for very high ethical and professional standards. Rather than simply billing out budgets, our company focuses on achieving the best possible results for our clients.

T.R.I.O. provides our clients with professional, detailed reports as well as photographic and video evidence in a cost-effective and timely manner, while adhering to industry confidentiality and integrity standards. T.R.I.O. is a solely owned and operated corporation and complies with all Canadian privacy laws including the Personal Information Protection Act (PIPA) and the Personal Information Protection and Electronic Documents Act (PIPEDA).

Why T.R.I.O.

• Licensed under the Ontario Private Security and Investigative Services Act (PSISA)
• Multi-investigator team with 30+ years experience
• Modern surveillance tech paired with proven field tradecraft
• Specialists in rural, reservation and small-community surveillance
• Transparent flat or hourly pricing — quoted before any work begins
• Court-ready reporting with full chain of custody
• Compliant with PIPA and PIPEDA