Your partner in high-performance engineering
Multidisciplinary expertise in electrical, mechanical, and energy efficiency engineering — serving large-scale projects in Quebec and across Canada, with a constant commitment to technical excellence.
About us
Rooted in Quebec with a presence across Canada.
With over 20 years of experience, DND is a multidisciplinary engineering firm offering innovative and resilient solutions for critical environments — data centers, hospitals, public buildings, and more.
We combine technical rigor and a human approach to build sustainable, future-ready infrastructure.
Registered with the AMF

Ready to start your next project?
Whether you’re in the planning, construction, or optimization phase, our team is here to support you every step of the way.

What we offer
Electrical Engineering
- Lighting (indoor, outdoor, accent)
- Power services and distribution
- Uninterrupted power systems (generators, automatic transfer switches, UPS)
- Solar photo-voltaic systems
- Arc flash studies
- Fire alarm systems
Mechanical Engineering
- HVAC (Heating, Ventilation, and Air Conditioning)
- Plumbing
- Building automation (BAS)
Energy Efficiency
- Energy efficiency studies
- De-carbonization projects
- Grant applications
- Recommissioning
- Advanced commissioning
Sectors served
Critical facilities
Education
Health-care
Municipal
Commercial
Our partners
At the heart of DND is a team of committed associates who embody the company’s values and vision. Much more than technical experts, they are the pillars of our strategic growth, engineering excellence and collaborative culture. Thanks to their diversified expertise in mechanical, electrical and project management, they guide every decision with rigor, innovation and an unwavering commitment to quality.