David A. Brown, C.M., Q.C.

David Brown returned to Davies Ward Phillips & Vineberg LLP as Counsel focusing on the Capital Markets and Corporate/Commercial practices, following seven years as the Chairman and Chief Executive Officer of the Ontario Securities Commission (OSC). Prior to joining the OSC, he was a senior corporate law partner with a predecessor firm to Davies Ward Phillips & Vineberg for 29 years, focusing on mergers and acquisitions, corporate finance and reorganization.

During his tenure as Chairman and CEO, the OSC moved from a government agency to a self-funded Crown corporation with a renewed mandate to provide effective protection to investors while maintaining strong, efficient capital markets in Canada. David led the expansion and reorganization of the OSC to meet the increasing demands of a changing market. This enabled the OSC to strengthen its resources and to focus its activities on providing a balanced regulatory response to emerging issues.

David has played a significant role in national and international regulatory bodies. He was the founding chair of the Council of Governors for the Canadian Public Accountability Board, a national body he helped form to oversee the audits of Canadian publicly-listed companies. In 2007 he undertook an independent investigation into matters relating to RCMP pension and insurance plans, and delivered his report, "A Matter of Trust" to the Minister of Public Safety and to the President of the Treasury Board of Canada. He was subsequently appointed chair of a five-person task force to examine issues of governance and culture within the RCMP. The Task Force report and recommendations were delivered to the Minister of Public Safety and to the President of the Treasury Board on December 14, 2007.

David was appointed Queen's Counsel in 1984. He was appointed a member of the Order of Canada in 2008 and received the Queen's Jubilee Medal in 2012.


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  • Recognized as a repeatedly recommended practitioner in the area of Corporate Finance by The Canadian Legal Lexpert Directory.

Professional Affiliations

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Board Memberships

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  • Director and Member, Funds Advisory Board, Invesco Trimark Group of Mutual Funds
  • Chair, Steering Committee, Enhancing Audit Quality Task Force
  • Chair, Departmental Audit Committee, Canada Department of National Defence
  • Director, Canada Health Infoway
  • Director, Input Capital Corporation 
  • Past Chair, Board of Directors, Canadian Employment Insurance Financing Board
  • Past Deputy Chair, Board of Trustees, University Health Network
  • Past Chair, Governance & Leadership Council, Ontario Hospital Association
  • Past Member, Dean’s Advisory Council, Wilfrid Laurier University School of Business and Economics
  • Past Member, Westerkirk Advisory Board
  • Past Member, Dean’s Advisory Council, Osgoode Hall Law School
  • Past Senior Advisor, Auditor General of Canada
  • Past Chair, Auditing and Assurance Standards Oversight Council (AASOC)
  • Past Member, Public Interest Oversight Board
  • Past Member, Advisory Board, Q4 Web Systems Inc.
  • Past Chair, Technical Committee and member, Executive Committee, International Organization of Securities Commissions

Community Involvement

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  • Former Honorary Consul-General for Singapore in Toronto
  • Past Chair, Public Policy Forum
  • Past Director, Royal Agricultural Winter Fair
  • Past Director, Princess Margaret Hospital Foundation
  • Past Director, Cancer Care Ontario
  • Past Director, Ontario Smart Systems for Health Agency
  • Past Director and President, Granite Club

Teaching Engagements

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Speaking Engagements

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David is a regular speaker on a variety of topics related to corporate governance and capital markets reform.

Articles and Publications

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David co-authored a 2008 paper entitled Board Investigations of Corporate Conduct.

David Brown
David A. Brown
Bar Admissions:

Ontario, 1968


McMaster University, Honorary Doctorate of Laws, 2005

University of Toronto, LL.B., 1966

Carleton University, B.A., (Civil Engineering), 1963