Despite being rooted in military tradition that espouses a centralized “command and control” structure, our organization defers autonomy to local divisions to provide the greatest opportunities for our Commissionaires, while leveraging best practices at the national level. We embrace diversity as a pathway to continuous improvement and have built a management team from various industries beyond security to share management best practices that enable our organization to develop tailored solutions for our clients. Although we have a national brand synonymous with supporting our veterans, we are a federated model of 15 divisions across Canada with a relatively flat management structure. This is important because each division is governed by a separate executive management team and board of directors, and are empowered to promptly address client escalations.


Geoff Hamilton

President & CEO

Geoff Hamilton joined CGL as President and CEO in March 2022 after serving as CEO of Commissionaires Nova Scotia for nearly four years. He concurrently served as Vice-Chair of the Corps’ National Business Management Committee for nearly three years.

His return to Canada in 2018 followed international leadership experience including working as CEO of Exera, Myanmar’s leading security risk management firm and developing an agro-forestry project based in South Sudan. Geoff began his career in the Royal Canadian Navy and is still active in the reserve where he holds the rank of Commander. He completed his undergraduate degree at Dalhousie University, earned a master’s degree in law specializing in international dispute resolution from the University of London (Queen Mary and University Colleges), and is a graduate of the Canadian Forces College’s Joint Command and Staff Programme.

Rowan Hamilton

Chief Operating Officer

Rowan Hamilton joined CGL as the Chief Operating Officer in November 2021. Reporting directly to the CEO, Rowan is responsible for the overall daily operations and will work with the senior leadership team to implement the strategic vision and values of the company.

Prior to joining CGL, Rowan has held senior leadership roles in both business development and business operations with national and multinational security organizations. His diverse background brings a unique perspective, a depth of valuable experiences, and local and national insight. This is Rowan’s second role with Commissionaires having most recently worked in Calgary for the Southern Alberta Division before returning to the GTA in the summer of 2021.

Mark Blevis

Chief Corporate Affairs Officer

Mark Blevis joined the CGL executive team in February 2022 after nearly five years as Director, Public Affairs and Marketing with Commissionaires National Office. As Chief Corporate Affairs Officer, he is responsible for finance, information technology, marketing and communications, compliance, governance support, and legal.

Mark began his career in IT in 1995 and quickly moved into security, risk management, and privacy, leading security teams and projects at Timestep, Calian, BCE Emergis, and the Canadian Coast Guard. In 2007, he shifted his focus to communications, and issues and reputation management. He was hired to build a Canadian digital public affairs practice for a multinational public relations company after which he ran his own agency for eight years. His 2004 best-selling book, TOUCH, guides leaders of all types of organizations with proven approaches to human leadership and communication in the digital age. In addition to his corporate work, Mark taught communications and marketing classes as part of Algonquin College’s continuing education program.