Investigation Hotline
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Best Private Investigators in Toronto, ON
15 agencies listed · 14 in Toronto · 8 open 24/7 · 9 open weekends · 10 rated 4.5+
Data verified October 18, 2026
The Investigators Group
“This security company is really good and dependable, punctual, and all of the the employees are good at fulfilling their duties”
Atlas Private Investigations
“Super pleased with the attention to detail, discreet nature and rapid response rate of Dan and his staff.”
Vest Security Services
“Their service is top class and the value of the service is really good.”
Haywood
“We couldn't be happier and it has helped our family out immensely.”
Ontario Wide Process Servers
“I would definitely recommend this company to anyone who needs to serve Plaintiff's Claim in a proper way.”
The 15 agencies shown for Toronto, ON carry out investigation work: surveillance, tracing, background and asset inquiries. Details of licence, specialties and coverage come from each agency's own website, and ratings and quotes come from public reviews.
Area overview: Toronto, ON
14 of the 15 agencies we list are based in Toronto; the other one does not publish an address. 14 of the agencies on this page have a rating, from 3.0 to 5.0 across 840 reviews; 6 have 50 or more reviews and 10 are rated 4.5 or higher. 8 are open around the clock and 9 are open on weekends. The services the agencies on this page list most often on their websites are corporate investigations (4), insurance investigations (3), cheating spouse investigations (2), insurance fraud investigations (2) and pre-employment screening (2). 4 show a licence on their websites. 9 have ten or more years of experience, the longest 30 years. 8 offer urgent consultations and 5 offer a free initial consultation. We have a website on file for all 15 of the agencies on this page; all 15 publish a contact page and all 15 list a public email. We count these figures across the agencies on this page; distances are straight-line, and hours and prices change, so confirm the details with the agency before you book.
Why are investigation agencies outside Toronto shown here?
14 of the 15 agencies are located in Toronto, and the page fills out with listed ones from other towns. Fieldwork happens wherever the subject is, so the licence for the province where the work will be done matters more than the address.
Intel Group Investigation Services
“What truly sets Intel Group Investigations apart is their commitment to client satisfaction and their ability to deliver timely and accurate results.”
Fine Line Investigations
“Very happy with the services provided, quick to reply and eager to provide the best Investigative service.”
Investigative Power
Safeguard Security & Investigation Services
Mark Mendelson Consulting Corp.
“The best PI firm in town.”
Digits & Delta Forensics Agency
“Provided a service, discreetly and professionally.”
SKM Forensic Investigations
Barker Hutchinson & Associates
Discreet Investigations Toronto | Private Investigator Company
“I called these guys about an employee matter and they were able to get me all the information I needed.”
Why these companies made our list
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