Investigations Plus
“I used their services, they are very professional and get the job done.”
Best Private Investigators near Halton Hills, ON
These agencies serve Halton Hills from nearby bases in towns including Mississauga, Georgetown and Milton.
10 agencies listed · 6 open 24/7 · 8 open weekends · 7 rated 4.5+ · 5 show a licence
Data verified October 21, 2026
Espion Investigative Services
“Great job and the final cost was much less than quoted.”
Aberdeen Investigations
“Right onto the point, fully investigating every possible aspect, truly thinking with the mind of a customer.”
Delta Investigations
The Smith Investigation Agency
“I felt very comfortable discussing my issues with Paticia and I am very fortunate she understood my English is my second language”
Star Quality Private Investigations
“I would highly recommend anyone looking for a private investigation service to go with Star Quality!”
The 10 agencies shown for Halton Hills, 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: Halton Hills, ON
The 10 agencies on this page are rated from 2.6 to 5.0 across 323 reviews; 3 have 50 or more reviews and 7 are rated 4.5 or higher. 6 are open around the clock; 8 are open on Saturdays and 6 on Sundays. The services the agencies on this page list most often on their websites are background check (2), corporate investigations (2), infidelity investigations (2), investigative research (2) and surveillance (2). 5 show a licence on their websites. 6 have ten or more years of experience, the longest 29 years. 6 offer urgent consultations; 5 offer a free initial consultation and 1 is family- or locally-owned. We have a website on file for all 10 of the agencies on this page; all 10 publish a contact page and 9 list a public email. We count these figures across the agencies on this page; hours and prices change, so confirm the details with the agency before you book.
Which investigators listed for Halton Hills describe their work online?
All 10 agencies here have a website recorded. That is where a firm sets out its provincial licence, the inquiries it handles, and whether its clients are mostly law firms, insurers or private individuals. The client mix tells you a good deal about how carefully its reports are prepared.
Corpa Investigation
“Expedited yet exceptional quality service including but not limited to litigation support in both civil & criminal cases and surveillance.”
Facts Investigations - Private Investigator Mississauga
“I had the opportunity to work with Arshad regarding an important incident, and I'm extremely pleased with the level of professionalism and expertise he brought to the investigation.”
SSC Investigative Consultants
“Delivered exactly what I needed quickly and with great communication.”
Profile Investigation
“I had the pleasure of working with Profile on a number of projects for the past decade.”
Why these companies made our list
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