Marc-Antoine Laurin

Marc Antoine Laurin has more than 15 years of experience at the firm and is recognized for his expertise in transactional taxation and fiscal due diligence.

Since 2017, he has led the fiscal due diligence group, which he was instrumental in establishing and positioning as a market leader. To date, he has overseen over 350 transactions, with values ranging from several million to several hundred million dollars.

He regularly participates in complex cross-border transactions, serving as a strategic tax advisor to financial investors and strategic buyers. His clients include private equity funds, private investment firms and Québec’s leading institutional investors.

He is also a member of Grant Thornton International’s Transaction Tax Steering Committee, where he contributes to the strategic direction of the global transactional practice.

Over recent years, Marc Antoine has participated in a wide range of tax due diligence assignments, negotiations and reviews of share purchase agreements. He has also contributed to the design and execution of acquisition structures tailored to the strategic and tax objectives of his clients both in Canada and internationally, as illustrated below.

• CDPQ’s investment in Element AI (2019)
• A.O. Smith’s acquisition of Giant Factories Inc. (2021)
• Sobeys’s acquisition of Ricardo Media (2021)
• CDPQ’s investment in Solotech (2023)
• Financière Outremont’s investment in Moment Factory (2024)
• Merger of HGrégoire and Le Prix du Gros (2024)
• Vance Street Capital’s acquisition of Damotech (2025)
• Nazca Capital’s acquisition of Teltronic Corporation SLU and PowerTrunk (2025)
• CDPQ’s investment in Ocean Group (2025)
• SPX Technologies’s acquisition of Thermolec (2026)