Leadership

Mr. Hennick is the global Chairman, CEO and controlling shareholder of Colliers International. Jay is also the Founder, Chairman and the largest individual shareholder of FirstService and was the former CEO from 1988 to 2015. He is also the Chairman of Hennick & Company, a private family investment firm. In 1998, Mr. Hennick was awarded Canada's Entrepreneur of the Year, and in 2001 he was named Canada's CEO of the Year by Canadian Business Magazine. In 2011, Jay received an Honorary Doctorate of Laws from York University and in 2014, an Honorary Doctorate from the University of Ottawa. In 2019, Mr. Hennick was appointed as a member of the Order of Canada and received the International Horatio Alger Award. In 2024, he was inducted into the Canadian Business Hall of Fame.

Mr. Hennick also served as past Chairman of the Board of Directors of the Sinai Health System and Mount Sinai Hospital, in Toronto. Jay and his wife Barbara are also active philanthropists establishing the Hennick Family Foundation to support important causes in healthcare, education and the arts, the largest of which include: $50M donation to the Royal Ontario Museum in support of their revitalization and new vision plans; $36M donation to name Hennick Bridgepoint Hospital, the largest complex care and rehabilitation hospital in Canada; $10M donation to the World Holocaust Remembrance Centre (Yad Vashem) in Jerusalem, Israel; and smaller but significant benefactions include those to Osgoode Hall Law School and the Schulich School of Business at York University and to the University of Ottawa.

Christian Mayer has served as Global Chief Financial Officer since January 2020. In March 2026, he was appointed to the additional role of CEO of Commercial Real Estate. He oversees the Commercial Real Estate segment, with a focus on advancing long-term growth and value creation, and continues to lead the company’s enterprise-wide financial strategy.

Prior to 2020, Christian served as Senior Vice President, Finance & Treasurer, managing the firm’s external reporting, treasury and tax functions, as well as related areas in operations, governance and investor relations. Christian joined FirstService Corporation (the predecessor of Colliers) in 1999, where he was responsible for external and internal financial accounting, reporting and analysis functions. In addition, Christian has led and advised on a wide range of corporate finance and development transactions throughout his career.

Christian is a Chartered Professional Accountant and began his career with the accounting firms Grant Thornton and PricewaterhouseCoopers, both in Toronto. Christian holds an Honours Bachelor of Business Administration degree from Wilfrid Laurier University.

Elias Mulamoottil is Global Chief Investment Officer & CEO of Engineering for Colliers International Group Inc. He drives growth across Colliers’ global Engineering platform and oversees Colliers’ investment team and program, including multiple direct report platforms, new strategic investments, and emerging tech investments. Elias previously served as Senior Vice President, Strategy & Corporate Development for FirstService. He was responsible for executing FirstService's acquisition strategy as well as the formulation and implementation of its corporate strategy. Prior to joining FirstService, Elias was a partner at a Toronto based financial advisory and asset management firm, where he sourced and executed mergers, acquisitions, divestitures and financing transactions.

Elias is a Chartered Professional Accountant and began his career at Deloitte & Touche. He holds a Master of Arts degree in Economics from the University of Western Ontario and a Bachelor of Arts degree in Economics from the University of Waterloo.

Christopher (“Topher”) Merrill is Global CEO, Harrison Street Asset Management and serves as Chairman of the Board and the Investment and Executive Committees of the firm. Prior to co-founding Harrison Street, Christopher was a partner, owner and managing director of a large U.S. pension fund advisory firm where he developed the firm's presence in Europe, creating the first real estate funds exclusively targeting Central Europe, which became one of the top 10 performing global funds between 1996-2000.

Christopher was selected for the prestigious 2025 Horatio Alger Award and named 2022 Global Industry Figure of the Year by Private Equity Real Estate (PERE). He earned his MBA in the evening from the CASS School of Business in London, England. 

Rebecca (Becky) Finley is the Chief Brand and People Officer | Global for Colliers International Group Inc, providing leadership and oversight of Colliers’ marketing, brand, communication, and people strategies.

Becky has extensive leadership experience in setting corporate strategy, driving innovation, and building high performing teams. Prior to Colliers, Becky served as Chief of Staff and Head of Technology, Telecommunications & Media at Facebook Canada, led the Office of the CEO at Maple Leaf Foods, was a Management Consultant with the Boston Consulting Group, and worked as an Investment Banker with TD Securities.

Becky holds an ICD.D from the Institute of Corporate Directors and in 2017, she was recognized by the Boardlist as a top Canadian woman in tech. Becky also holds an MBA from the Rotman School of Management and a Bachelor of Mathematics and Education from Queen's University.

Robert (Bob) Hemming is Senior Vice President & Chief Accounting Officer at Colliers. He is a seasoned executive with extensive finance and operational experience in diverse industries including real estate, telecom, forestry and mining.

A proven leader with a 35-year career, Bob has a consistent track record of driving growth in publicly traded companies. He is recognized for his performance leadership, strategic planning, and ability to drive change. He excels in developing high-performing teams, streamlining financial processes, and delivering results in both growth periods and economic challenges.

Stuart McDonald is the Chief Information Officer | Global at Colliers, overseeing the company’s technology transformation strategy. His responsibilities include advancing AI capabilities, modernizing cloud infrastructure, and strengthening data-driven processes to support Colliers’ growth. He drives a multi-year roadmap aimed at improving the reliability, security, and scalability of Colliers’ platforms and enabling teams to work more efficiently through integrated digital tools.

A recognized leader in digital transformation, Stuart brings multi-industry and multi-market expertise, spanning aviation, financial services, logistics, and real estate. These perspectives enable him to reimagine processes, harness emerging technologies, and foster a culture of innovation that positions Colliers at the forefront of the industry. Prior to joining Colliers, Stuart served as Westjet’s Chief Technology/Information Officer and held related senior roles at TD Bank, CSL, and Cathay Pacific, among others.

Stuart holds a Bachelor of Computing Science (Honors) from the University of Technology, Sydney.

Matthew Hawkins serves as Senior Vice President, Legal & Corporate Secretary of Colliers Group International Inc. (CIGI).  Based in Toronto, Matthew has primary responsibility for CIGI's legal, corporate secretarial and regulatory status as a public company; major contracts and agreements, including those related to acquisitions, financings and other corporate development matters.  Additional responsibilities extend to oversight of any significant legal matters arising in CIGI's operating subsidiaries, with a focus on North America, but including CIGI's global operations, working closely with other members of CIGI's legal team and external advisors.

Matthew started his career at Davies Ward Phillips & Vineberg LLP in Toronto with a practice focused on public and private company mergers and acquisitions, corporate finance and securities offerings, and most recently worked in an in-house role at a TSX-listed pharmaceuticals company.

Michael Harding serves as Vice President, Finance & Treasurer | Global for Colliers International Group Inc. He oversees the company’s global treasury function and supports financial reporting, corporate finance, and investor relations. Michael brings strategic insight and operational discipline, grounded in a deep understanding of Colliers’ global business built over more than a decade with the company.

Since joining Colliers in 2015, Michael has held senior roles across finance, strategy and operations. Most recently, he served as Senior Vice President, Strategy for the U.S. and Executive Managing Director of LATAM Operations, where he played a key role in executing growth strategies across the region. His work has spanned strategic planning, broker recruitment and underwriting, M&A sourcing and integration, treasury and capital structure initiatives, and transformational operational projects across brokerage, valuations, property management, project management, and shared services.

Prior to Colliers, Michael worked for marquee companies such as PwC, First Quantum Minerals and The Kraft Heinz Company. He is a Chartered Professional Accountant and holds a Bachelor of Business Administration degree from Wilfrid Laurier University.

Lynda Cralli stands as a pillar of leadership and operational excellence in the corporate world, serving as Chief of Staff and Assistant Corporate Secretary at Colliers International Group Inc. With over 35 years of experience, Lynda provides strategic support and counsel to the Global Chairman & CEO and leads the operations of Colliers global head office. Lynda is instrumental in aligning the executive team and Board of Directors, fostering a culture of high standards in communication and organizational excellence.

Lynda’s impressive experience in corporate administration and executive management began with senior roles at FirstService Corporation including Assistant Corporate Secretary and Manager, Office of the Chairman & CEO and began her career as a legal assistant at Fogler, Rubinoff, a leading Toronto law firm. These experiences have provided her with a robust foundation in corporate law, office administration and executive support.

Her broad expertise encompasses executive management, corporate law support, senior office administration, investor relations, communications, human resources, corporate event planning, facilities management and administrative services. Through her collaborative leadership style, she ensures Colliers maintains its reputation for operational efficiency and excellence, empowering executives and staff to achieve organizational objectives.