Thirty-five years of fieldwork across the GTA.
Discreet Investigations operates out of downtown Toronto, with investigators covering every major city in the Greater Toronto Area and beyond. Wherever you are in southern Ontario, a licensed operator is within reach.
Primary coverage across the GTA.
These are the cities where we log the most surveillance hours, the most investigator visits, and the most closed files — year after year.
- 01
Toronto
Headquarters. 100 King Street West — full-service surveillance, corporate, and legal support.
Read more - 02
Mississauga
Dedicated investigators covering Square One, Port Credit, Meadowvale, and Streetsville.
Read more - 03
Brampton
Field teams working custody, infidelity, and corporate matters across Peel Region.
Read more - 04
Vaughan
Counter-surveillance and executive-vetting specialists covering York Region corporates.
Read more - 05
Markham
Mandarin-speaking investigators; heavy caseload in corporate due diligence.
Read more - 06
Oakville
Full surveillance coverage across Halton — downtown, Glen Abbey, and Bronte.
Read more - 07
Hamilton
Investigators covering Hamilton, Stoney Creek, Ancaster, and Dundas for insurance and family files.
Read more - 08
Pickering
East-end surveillance coverage out through Durham Region — Pickering, Ajax, Whitby.
Read more - 09
Oshawa
Durham Region operations base — strong for insurance-fraud, workplace, and custody matters.
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A–Z directory
Every city we currently work out of, in alphabetical order. Don't see yours listed? We cover all of southern Ontario by arrangement — just call.
Contact Information
- Licensed
- Insured
- Bonded
We respond to every enquiry the same day — usually within the hour during business hours. For urgent matters, call the hotline directly — someone is on-call 24/7.