Since our inception, Sentinel Security Plus has been focused on strategically building a quality security agency. Our company is recognized as a leader in the corporate event and close protection industry in Canada and continues to develop tremendous rapport by creating lasting relations with new and existing clients.

Our various divisions are overseen by a team of specialized security professionals. Based on your requirements, we customize a team of highly trained security experts to deliver a level of service that will exceed your expectations. Our entire security team is fully licensed and Smart Serve certified. Our company is fully bonded, licensed and protected with over 5 million dollars in liability insurance.

Highly Trained

When hiring, we look for candidates who possesses a certain skill set or level of experience that coincides with our unique training philosophies. Specifically, we look for individuals who have the ability to effectively communicate with people so that we can provide our clients with the level of customer service they deserve.

All our Close Protection Specialists have completed their Close Protection training through retired RCMP Joe Balz and received completion certification. This is all done in house and through Sentinel Security.

We maintain a positive relationship with various police entities (or services) and liaise closely with them to create safer environments for our clients.


Our vision is to become the leading provider of physical security in Canada.

By staying committed to raising the bar in the physical security industry we will foster this reality, of creating a viable and rewarding career path while changing the mentality of the industry wide in our nation to match International standards; and in doing so, creating our own legacy.

To achieve this vision, we will demonstrate:

We Stand for Quality Protection

The Quality Protection creed coincides with our unique training philosophies. We provide trained personnel that effectively communicate, providing our clients with the level of customer service and safety they deserve.

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In an effort to elevate the standard in the Security Industry in Ontario, we are lobbying the Ministry of the Solicitor General to update the current criteria in the  Private Security and Investigative Services Act, 2005, S.O. 2005, c. 34.

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Backed by an insatiable desire to be our best, coupled with the quality people who embody our core values of humility and hard work, our commitment to training is the difference.

The be the best, you must train with the best.

At Sentinel we have continually sought experts in our industry to prepare us for the unexpected, while providing the highest level of customer service to be a valuable asset on the floor with our clients.

Company Profile

Constantine Ioannou

Chief Executive Officer

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Brian Catarino

President & Founder

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Michael Reventar

Chief Operating Officer

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Joe Balz

Director of Executive Protection

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Steven Summerville

Healthcare/Training Consultant

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Beata Kaczmarek

Client Service Manager

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Nathan Tallman

Quality Assurance Manager

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Rayna Davies

Office Manager

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Operations Manager

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Finance Manager

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“If your actions inspire others to dream more, learn more, do more and become more, you are a leader.” Simon Sinek

Ashleigh Tulloch

Ben Caldwell

Bruno Abreu

Christopher Ilogho

Gentian Ceni

Jason Agai

Joshua Houeto

Oscar Orozco

Rachel Santos

Shane Wint