Quinn Investigations

Reliable • Quality • Timely

Specializing in Surveillance, Background Checks, Interviewing, and Locates Since 1991

Our Services

Surveillance Teams

Our experienced and diligent private investigators work in single and multi-teams. Our expertise, technology, and collaborative approach enables us to provide you with the information needed to make an informed decision.

Undercover Investigation

Whether dealing with inventory, capital, personnel or intellectual property, our private investigators provide valuable insight and the documentation you need to protect your valuable assets.

Due Diligence

Due diligence investigations probe the history of a business, property, individual, or other subject. Investigations can expose any illegal or improper activity related to bankruptcy, foreclosure, criminal records, credit history, etc.

Background Checks

We are licensed private investigators specializing in finding people quickly and cost effectively. Our access to data, sources and other specialists allows us to deliver the results you need.

Witness Interviews and Statement Taking

Our seasoned investigators will take professional statements to document the incident and determine the Who, What, When, Where, and Why.

International Investigations

Quinn Investigations has a network of expert investigators across the globe. We have over 400 like-minded investigators across 70 countries they can assist with your investigation needs.

Quinn Investigations is Your Investigation Partner for:

Service Requests

Service requests are received by a secure server and are subject to stringent confidentiality guidelines set out by Quinn Investigations, the Council of Private Investigations of Ontario and the Ministry of Community Safety and Correctional Services.

Trust Comes with Keeping Promises

Reliability: Our Service Philosophy

We have over 30 years of industry experience delivering quality information and evidence to our clients, many of whom have trusted us with their investigative needs for decades.

Credible Information

Quality: Information You Can Trust

From comprehensive background checks to interviews/inquiries and surveillance, our skilled team at Quinn Investigations can be relied on to deliver detailed, accurate, and court-ready reports.

Efficient and Accurate Reports

Timeliness: Depend on Us

Effective results are delivered on time and on budget. We strive to provide busy professionals and concerned citizens with timely information to help solve complex issues efficiently.

Professional. Personable. Outstanding service and follow up. And within budget. We continue to see the value in Quinn Investigations.​

Jan T., CIP​

I have had the pleasure of dealing with Quinn Investigations for close to 20 years. Their work is excellent, and their timely reporting has been of great assistance to my clients and I on hundreds of claims. They are one of the best, and cost effective, investigating firms in the business. I have never hesitated to give them an assignment, and have never been disappointed with their reports.​

Peter R. Walker, CIP​

I’ve known and worked with Quinn Investigations for 32 years. They have always been my go to investigation company because they are reliable and easy to work with.​

Tony Cioffi​ Allstate Insurance​

I’ve worked with Quinn Investigations and their staff for over 20 years. Their staff is knowledgeable, reliable and on budget. The results are second to none, I would highly recommend Quinn Investigations.​

Chaussie Lawson, FCIP, CRM​ Claims Manager​

I have worked with Quinn Investigations over the last 10 years. The quality of their work is outstanding, their reports are on time and they are always within budget. I would highly recommend Quinn Investigations for anyone needing a reliable private investigation firm.​

Ross Macdonald​

Quinn Investigations Is a company that I have worked with for over 20 years. All of the staff are a pleasure to work with and their quick and reliable results make it easier to make decisions on our files.​

Janice B.​

Contact Us

Hamilton Office

Toronto Office