Hire The Leading Private Investigators in Mississauga
Uncover The Truth With Us
Mississauga Private Investigators Ready to Support You
Top Tier Investigations Inc. is here to support you with our next-level investigation services.
As the leading private investigators in Mississauga, we offer reliable, confidential services, using sound judgement, precision and experience to collect strong evidence that supports your case. Our team is highly qualified to serve your needs by delivering the highest quality results in a timely and efficient manner. We do thorough research to get you the right answers you deserve.
From insurance investigations to confirming the suspicions about your partner, Top Tier Investigations Inc. is here for you when you need it the most.
Get a Quote For Affordable, Top-Quality Private Investigation Services.
Discreet and Private Services at Competitive Rates.
What We Do
- Spousal Infidelity
- Insurance Investigations
- Corporate/WSIB Claims
- GPS Tracking
- General Investigations
- Divorce & Family Matters
- Covid-19 Compliance Investigations
- Missing Persons/Skip Tracing
- Workplace Investigations
- Forensic Investigations for Phones and Computers
Your Privacy is Safe with Our Private Investigators
- Our experience allows us to provide results for all investigations, from the simple to the complex
- We use discretion and sound judgment in every investigation
- Our team maximizes the latest technology, trusted sources and databases to get results that make a difference for you
- We’re compassionate and genuinely care for our clients and their outcomes
- You will receive detailed reports that highlight key evidence in your case
How Our Mississauga Private Investigators Stand Apart
- A locally operated and owned firm with over 30 years of experience
- Our firm is fully licensed by the Province of Ontario and compliant with the PIPEDA Act.
- Trustworthy and honest with all clients and their cases
- Discreet services where your privacy is always secure
- Skilled in various investigation services
- Competitive pricing structure
- Highly-trained investigators that adhere to our strict protocols
- 100% customer satisfaction
EXCELLENTBased on 112 reviews![]()
Ilaha Alakbarova2026-09-16Extremely professional, reliable, and discreet. Mark went above and beyond to gather the exact evidence needed to resolve my situation. Honest about timelines and costs from the start. I couldn’t have asked for a better experience—highly recommend!
Dorje Kongtsa2026-08-10Marc and his team went above and beyond throughout our case. I highly recommend Top Tier—they were incredibly professional and made the entire process much easier to navigate. What really stood out to me was how genuinely Marc cared about every detail and consistently provided exceptional communication and support. He always made sure to go one step further to ensure everything went to plan. I couldn’t be more grateful for their help and would give them my highest recommendation! Thanks Marc!
John Hamilton2026-06-18I came to Marc during one of the most stressful times of my life, desperately trying to locate someone I had lost contact with. From the very first conversation, he was professional, compassionate, and straightforward about what the process would look like. He never overpromised — but he delivered beyond what I expected. Marc worked quickly and kept me updated every step of the way. Within a shorter timeframe than I anticipated, he had the information I needed. His attention to detail and the thoroughness of his work gave me complete confidence that I was in good hands. What really sets Marc apart is how he handles the human side of these situations. He understood how emotional and urgent this was for me and treated my case with real care — not just as another job. That meant a lot. If you need someone discreet, reliable, and genuinely skilled at what they do, look no further. I wouldn’t hesitate to recommend Marc to anyone. Absolute professional. 10/10.
Matthew Wong2026-05-31I had a great experience with Top Tier Investigations. They were professional, responsive, and straightforward from the very beginning. Expectations were clearly explained, communication was excellent throughout the process, and their pricing was very reasonable for the level of service provided. They delivered exactly what they promised and made the entire experience stress-free. I would highly recommend Top Tier Investigations to anyone looking for reliable and professional investigative services.
Oduro Owusu2026-02-10Marc and his team were such a pleasure to deal with. Conducted everything so professionally and within a great duration of time. First of many times I will be reaching out for his services. Thank you Marc.
Anthony Pichelli2025-11-08Mark is amazing !! He has lots of creative ideas to get the job done . I’ve already used him 3 times and all were successful… thanks Mark!
There are multiple factors that can impact the cost of the investigations, including the complexity, length and type of case. We can discuss fees during our free and confidential consultation.
No, as Ontario-licensed private investigators, we serve the Greater Toronto Area, including suburbs like Brampton, Ajax and Markham. We can explain the extent of our investigation during our consultation.
Yes, it is! Unless it is for illegal matters, then you have every right to hire a private investigator. We are legally allowed to conduct investigations on behalf of our clients, as long as it is not illegal.
Apart from our success and experience, it’s our transparency and openness, and consistent communication. We take great pride in being recognized as trustworthy and honest investigators that put our clients’ interests first.