Montreal’s Most Trusted CPA Auditor & Advisory Firm
All-in-One Accounting, Tax, Audit & Financing Solutions for Your Business
More than 5,000+ happy clients
Experience. Integrity. Results You Can Count On.
When you work with Mackisen, you gain a dedicated team of CPA auditors, accountants, CFOs, and licensed tax lawyers — all collaborating under one roof to deliver results, not surprises.
Our Services
We promise accuracy, transparency, and a commitment to your long-term financial health.
35+
Years of Experience
We have experience across a broad range of sectors, allowing us to tailor our services to your field. Mackisen Proudy supports clients in:
