We're the leading private investigators in Oakville, dedicated to providing you with the results that uncover the truth, bringing you peace of mind and clarity. Our fully licensed, bonded and insured private detectives treat every investigation with the highest level of professionalism and discretion. We successfully operate insurance fraud, workplace, corporate and cheating spouse investigations, across the GTA, including Brampton, Markham and Mississauga. Get the results you want with Top Tier.