Mr. Masse has acted on the following client matters:

• Obtained Competition Bureau merger compliance approval, including compliance with supplemental information requests, for numerous proposed merger transactions in the book publishing, manufacturing, telecommunications, IT consulting and plumbing supply sectors
• Represented clients in relation to domestic and international Competition Bureau investigations relating to cartels and bid rigging in the auto parts, construction and IT consulting industries
• Acted on behalf of auto parts suppliers in multi-jurisdictional class action proceedings commenced pursuant to the Competition Act
• Handled numerous anti-dumping and subsidy cases before the CBSA and CITT in relation to steel, aluminum, agricultural and consumer products
• Successfully acted on behalf of government contractors (Rogers Communications, Veritaaq, Wipro, Supremex, Tyco Electronics, Sierra Systems, Procom, PriceWaterhouseCoopers, Deloitte and Touche, Federal Force Protective Agency), in bid challenge disputes before the CITT, as well as provincial and municipal procurement review bodies
• Acted for government agencies in developing procurement policies and codes of conduct
• Acted on behalf of a multinational telecommunications provider regarding the ownership and control rules applied by Industry Canada and the Canadian Radio-television and Telecommunications Commission applicable to new electromagnetic spectrum licences
• Representing several parties in judicial review applications before the Federal Court of Appeal, including Prudential Steel, Wipro Canada, Toronto Port Authority, Inuvialuit Regional Corporation, Mohawk Council of Akwesasne, and Nunavut Wildlife Board
• Acting for numerous national trade associations in the biotech, aviation, manufacturing, and energy sectors on regulatory and competition law matters

• "Compliance Matters: How Anti-Corruption, Anti-Trust and Regulatory Enforcement Impacts Business in Other Countries" (panel chair), ABA, Section of International Law, Fall Meeting, Montreal, October 2015.
• "Regulatory Investigations Best Practices" (program faculty), Federated Press, Mini LLB for Regulators, Ottawa, September 2014.
• "Conducting Regulatory Investigations" (program chair), Federated Press, Gatineau, QC, September 2013.
• "When is a Shareholder Liable?" (panelist), ABA, Section of International Law, Spring Meeting, Washington, D.C., April 2013.
• "Practical Approach to Bidding and Tendering" (program faculty), Federated Press, Fourth Public Procurement Law, Federated Press, Toronto, 2012.
• "Frequently Asked Questions on International Transactions" (panelist), ABA, Section of International Law, Fall Meeting, Dublin, October 2011.