Your trusted partner in construction since 1989.
With decades of excellence and customer and partner satisfaction, Seni Constructions stands out for its expertise and commitment to quality.
Our reputation is built on our ability to tackle the most complex challenges with unparalleled precision and consistent creative vision.
We believe in innovation, team spirit and respect for commitments.
Mission and vision
Mission and vision
Design and build sustainable infrastructures combining technical excellence and respect for the environment.
We aspire to a future where every project contributes positively to a constantly evolving world. Working in synergy with our clients, we are committed to being partners in major achievements that mark history, while remaining in harmony with the needs of the future.
Team
Our team is made up of passionate professionals, dedicated to transforming your ideas into concrete results. Their expertise and commitment ensure results that exceed your expectations.

Numbers are his playground.
Samuel, a CPA by training, ensures that every dollar invested generates maximum value.
From cost management to financing, including tax optimization and risk management, he has a comprehensive view of the company's finances.
Pragmatic and rigorous, he secures investments and ensures sustainable profitability.
His leadership in team management and financial expertise make him a key pillar of SENI's stability and growth.
Samuel, a CPA by training, ensures that every dollar invested generates maximum value.
From cost management to financing, including tax optimization and risk management, he has a comprehensive view of the company's finances.
Pragmatic and rigorous, he secures investments and ensures sustainable profitability.
His leadership in team management and financial expertise make him a key pillar of SENI's stability and growth.
Samuel T. Duchesneau
Vice President, Finance

Identifying the best opportunities and transforming them into concrete projects is Simon's specialty.
Always keeping an eye on the real estate market, he identifies high-potential land and oversees construction projects with exemplary rigor.
He juggles project management, municipal relations, and stakeholder coordination to ensure everything runs smoothly.
A skilled strategist, he knows how to build solid partnerships and navigate regulatory processes to bring each project to fruition.
With him, every investment is optimized and every development is a success.
Always keeping an eye on the real estate market, he identifies high-potential land and oversees construction projects with exemplary rigor.
He juggles project management, municipal relations, and stakeholder coordination to ensure everything runs smoothly.
A skilled strategist, he knows how to build solid partnerships and navigate regulatory processes to bring each project to fruition.
With him, every investment is optimized and every development is a success.
Simon Longpre
Vice-president - development and real estate

Jessica embodies the human spirit of Seni Constructions.
As head of Human Resources, she blends strategic thinking with emotional intelligence to foster a culture of trust and collaboration.
With passion and clarity, she bridges the gap between company goals and individual aspirations, ensuring that every team member finds their place, their voice, and their momentum.
Her proactive and empathetic approach turns HR into a true engine of growth.
More than a role, Jessica cultivates a culture—one where talent thrives and success begins with people.
As head of Human Resources, she blends strategic thinking with emotional intelligence to foster a culture of trust and collaboration.
With passion and clarity, she bridges the gap between company goals and individual aspirations, ensuring that every team member finds their place, their voice, and their momentum.
Her proactive and empathetic approach turns HR into a true engine of growth.
More than a role, Jessica cultivates a culture—one where talent thrives and success begins with people.
Jessica Lessard-Giguère
Human Resources Director

Strategic and visionary, Jean-Simon is the driving force behind SENI Constructions' development.
A natural leader, he mobilizes his teams, maintains a clear vision for each project, and ensures flawless execution.
His expertise spans the entire construction cycle, from cost management to integrating new technologies, including anticipating challenges and resolving issues.
Always ready to take on new challenges, he negotiates with finesse, transforms obstacles into opportunities, finds solutions where others see obstacles, and propels each project toward excellence.
A natural leader, he mobilizes his teams, maintains a clear vision for each project, and ensures flawless execution.
His expertise spans the entire construction cycle, from cost management to integrating new technologies, including anticipating challenges and resolving issues.
Always ready to take on new challenges, he negotiates with finesse, transforms obstacles into opportunities, finds solutions where others see obstacles, and propels each project toward excellence.
Jean-Simon La Rochelle
President - CEO