Best Private Investigators in Calgary, AB
10 agencies listed · all 10 in Calgary · 2 open 24/7 · 6 open weekends · 6 rated 4.5+
Data verified October 16, 2026
We are still growing
Qwest Investigations
Lead Investigations
Major Investigation Agency
Fatali Investigations
Anavaino Professional Lie Detector Testing
The 10 agencies shown for Calgary, AB 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: Calgary, AB
All 10 agencies we list here are in Calgary itself. 8 of the agencies on this page have a rating, from 4.1 to 5.0 across 66 reviews; 6 are rated 4.5 or higher. 2 are open around the clock; 6 are open on Saturdays and 5 on Sundays. 4 show a licence on their websites. Domain records put 3 websites of the agencies on this page at ten or more years old; the oldest dates from 1995. 2 offer urgent consultations and 2 offer a free initial consultation. We have a website on file for all 10 of the agencies on this page; 8 publish a contact page; 7 list a public email and 1 takes bookings online. We count these figures across the agencies on this page; hours and prices change, so confirm the details with the agency before you book.
Do investigators listed for Calgary discuss a case free?
2 of the 10 agencies say an initial consultation is free. Treat it as a scoping conversation about what you want to know and whether privacy law permits it to be collected. A firm that says no at that stage has just spared you a retainer and a useless report.