About Us

At Gestion OSO, we’re a team of digital marketing experts specialized in the realities of construction entrepreneurs and service SMEs in Québec.

Our mission : turn clicks into contracts.

We build Google Ads, Meta Ads, and simple systems that generate qualified calls.

Local businesses like Les Entreprises EJA already trust us to keep their job calendars full. We’re ready to do the same for you.

Our Vision

Become the go-to growth partner for Québec construction and service SMEs—giving owners control over their sales process and time for what truly matters: their clients and growth.

Our Values

Pragmatic Innovation

We use tech (AI, automation) for one thing: more signed jobs, less waste.

We speak your job-site language. You see us as a partner, not “another marketing agency.”

Proximity &

Collaboration

Operational Excellence

Simple systems that run in the background while you run your job sites.

No fuzzy promises: every dollar is traceable, every result verifiable.

Integrity & Transparency

Continuous

Learning

We transfer our know-how to your team so you can stay autonomous if you want.

Our Team

Expert in Sales Strategy & Business Growth

With 15+ years in business development, accounting, and sales strategy, I help companies turn their marketing efforts into concrete, predictable results.

Business Strategy :
I plan ad budgets, structure sales processes, and implement data-driven, efficient growth systems.

Sales Process Optimization :
I design and deploy performant sales strategies supported by precise, measurable processes.

Business Vision :
Known for strategic vision and execution, I build models where every action counts and every dollar invested returns measurable value.

John Mavrogiannis (B.GEST)

Growth is never an accident. It’s planned, structured, and executed with precision.

Félix Hachez-Vivier – Expert in Digital Marketing & Technology Integration

Félix combines performance marketing expertise with a passion for technology.

Online Advertising : ROI-driven Meta & Google campaigns.

Digital Transformation : Adoption of AI and smart tools.

Cross-Industry Vision : Strategies adapted to each industry.

A dedicated runner, he brings the same consistency and determination to every project.

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