Your QuickBooks Online accounting partner specializing in construction

At Théörème, an innovative  CPA firm, passion meets precision. We combine advanced expertise, smart technologies, and deep industry insight to deliver sustainable growth for your business.

The mission
that motivates us

To provide professional accounting services on QuickBooks Online, enabling our clients to build a modern and robust finance function, free themselves from administrative constraints, and achieve their ambitions.

The vision that guides us

To become a committed, operational and strategic partner, by supporting our c;ients and by anticipating their needs at each stage of their entrepreneurial adventure.

Our history

2025 - August

Construction specialization

Development of a QuickBooks Online bookkeeping ecosystem, especially designed for the construction sector.
2020 - March

COVID-19 pandemic

The global COVID-19 pandemic is causing a prolonged period of lockdown, forcing remote work and accelerating the adoption of bookkeeping on QuickBooks Online.
2018 - November

First mandates

Obtaining the first bookkeeping and consulting mandates.
2018 - August

Incorporation of Théörème Business Strategies Inc.

Creation of Théörème Business Strategies Inc., to meet a growing demand for bookkeeping on QuickBooks Online.
2018 - May

Departure of Stelia Aéronautique

Departure. Finance Director at Stelia Aéronautique, an Airbus subsidiary. End of a career of 14 years in the aeronautical industry, with Bombardier, Howmet-Alcoa and Stelia.
2014 - May

Sale of the family business

After 11 years of growth as a main shareholder, sale of the family business after 45 years iof existence.

The values that drive us

Our values are more than just words: they drive every decision, every action, every relationship and every mandate.

Rigor and compliance

We believe that rigor and compliance are the cornerstones of our professional commitment. Every action we take is guided by meticulous attention to detail and strict adherence to rules and best practices, driven by our constant focus on quality. This high standard is the foundation of the trust our clients place in us.

Integrity

We recognize that integrity, transparency, and honesty are critical to the sustainability of any relationship, whether it's with our customers, partners, or team. Taking full responsibility and acting with loyalty, even in the most demanding situations, is part of our daily commitment. It is this value that allows us to create strong, lasting and authentic relationships.

Innovation and agility

We are convinced that innovation and agility are the key drivers of our growth and that of our customers. We promote creativity and actively encourage the search for innovative solutions, while remaining open and flexible in the face of changes and the unexpected. This ability to innovate and adapt quickly allows us to offer our customers relevant and effective answers, regardless of the circumstances.

Team work

Teamwork is at the heart of our identity. This value embodies our desire to work together, to share ideas, talents and responsibilities to achieve common goals. By promoting listening, respect and synergy between individuals, we create an environment conducive to innovation, trust and collective success.

Our team

Our passionate team puts its expertise at the service of your projects. Together, we turn your challenges into successes.

Michel, MBA, CPA
President
Heri
Senior accountant
Mia
Senior accountant
Sarthak
Senior accountant

Certifications

that guarantee your peace of mind

Partners

QuickBooks Online to challenge you

ClientsTestimony

They transformed their financial management with Théörème - Discover their stories.

Purpatio.ca (Video)
Constructcible Inc. (Video)
Pro-Nord Fences (Video)
Poseidon Pool and Spas Inc. (Video)
Maison des fleurs vivaces (Video)