View Profile
CPI Security Services
- Company
- Family
- Patrol
“I have worked with CPI on a personal level and have to say that they are hands down an extremely friendly, accommodating , professional company with years of service in the industry.”
Best Private Investigators near Oshawa, ON
None of these agencies is based in Oshawa; they work from towns including Toronto (46 km), North York (43 km) and Markham (33 km).
24 agencies listed · 14 open 24/7 · 20 open weekends · 19 rated 4.5+ · 6 show a licence
Data verified October 18, 2026
View Profile
Investigative Solutions Network
“Great service.”
View Profile
Canguard Security & Investigations
“A unique security company with future-forward goals.”
View Profile
Pipro | Private Investigators Scarborough
- Investigation
- Prices
- Job
“PiPro Investigations Brampton: Discreet, reliable and quick!”
View Profile
Investigations Toronto
“Excellent service.”
View Profile
Protect First Security Services
“Our guard arrived early both nights for his shift & stayed onsite until we arrived the next morning.”
The 24 agencies shown for Oshawa, 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: Oshawa, ON
23 of the 24 agencies on this page have a rating, from 4.0 to 5.0 across 872 reviews; 5 have 50 or more reviews and 19 are rated 4.5 or higher. When clients rate these agencies on specific qualities, they most often praise professionalism (90%), responsiveness (81%) and quality (71%). The topics that come up most in reviews of the agencies on this page are "results" and "efficient". 14 are open around the clock; 20 are open on Saturdays and 18 on Sundays. The services the agencies on this page list most often on their websites are corporate investigations (4), surveillance (4), insurance investigations (3), cheating spouse investigations (2) and insurance fraud investigations (2). 6 show a licence on their websites. Domain records put 13 websites of the agencies on this page at ten or more years old; the oldest dates from 1996. 14 offer urgent consultations and 8 offer a free initial consultation. We have a website on file for all 24 of the agencies on this page; all 24 publish a contact page and 21 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.
Do investigators listed for Oshawa discuss a case free?
8 of the 24 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.
View Profile
Investigative Power
View Profile
Invictus Investigations
- Team
“Worked with the Invictus team and they provided results that helped me in my situation and would recommend this company to anyone looking for private investigations.”
View Profile
Investigator 911
- Case
- Team
“I had the case and the investigators helped me with my issues in a timely manner keeping me updated every week”
View Profile
Mantis Investigation Agency
View Profile
Investigation Hotline
- Expectations
- Call
- Organization
“I needed a quick investigation into someone, and other investigators that I called either couldn't find the person, or I couldn't get a real person on the phone.”
View Profile
The Investigators Group
- Career
- Supervisor
- Training
“I witnessed how other companies function, and none of them come close to the quality of service and professionalism that the Investigators Group provides.”
View Profile
Ontario Wide Process Servers
- Affidavit
- Documents
- Team
“I was out of the country and needed the assistance of a process server in Toronto and I was quite happy with the services of Ontario Wide, they were easy to communicate and deal with and I wouldn't hesitate to use them again.”
View Profile
Discreet Investigations Toronto | Private Investigator Company
- Family
- Team
- Job
“They handled a private matter far above any expectations and were completely discrete and professional on every level.”
View Profile
Intrepid Investigations
- Efficient
- Results
- Management
“I have worked with many investigation firms and investigators in my 20 year career as an adjuster up until a little over a year ago I started to use Intrepid and never looked back since.”
View Profile
Vest Security Services
- Training
- Quality
- Company
“Very professional and disciplined company, I visited few weeks ago and found them very organized and respectful and good trainers specially use of force training session”
View Profile
Haywood
“After numerous attempts at resolving the issues, and with little or no cooperation from the supplier, I contacted Haywood Hunt to conduct a thorough investigation of the suppliers shipping and delivery methods.”
View Profile
Intel Group Investigation Services
- Information
- Truth
- Expertise
“Peter Demarco was attentive and listened to every detail and made sure he got the correct information that I needed!”
View Profile
Regent Private Investigations
- Efficient
“They always conduct themselves in a courteous and professional manner, and in today's climate I sincerely appreciate a company that operates with integrity and gets the job done right the first time around”
View Profile
Premiere Investigations
- Price
- Job
- Questions
“I hired Diane and I am very glad I found her, she has not only fulfilled her duties in a timely manner but has gone above and beyond to surpassed my expectations.”
View Profile
Ascent Intelligence Agency
“Unfortunately, every Investigative Firm I consulted turned me down with words like: oh we can't help you or you must know that our investigation came back with nothing and you have to spend more money on this file.”
View Profile
Fine Line Investigations
“Working with this company allowed us to obtain a positive resolution.”
View Profile
Atlas Private Investigations
- Team
- Cost
- Information
“I have used Dan's services a few times now and felt like it was high time I wrote a review; especially after the exceptional work he has done for me.”
View Profile
First Recon Private Investigators
“They were extremely professional and sensitive to my situation, their fees were reasonable, and the personalized service was amazing.”
Private Detective Services in Oshawa, ON Cost Estimates
Minimum cost
$373
Maximum cost
$11804
National Average
$1491
Avg Per Hour Rates
$156
$870
$2485
Average price range is based on 340 cost profiles
Why these companies made our list
Is this page useful? Yes
No
Is there anything wrong with this page?
