Our mission is to exceed every client’s expectations both in private & government sectors by providing top-notch engineering design support and sustainability consultancy services. Our associates are distinguished by their technical expertise earned through years of design experiences, thereby ensuring that our clients receive the most accurate design and superb drawing quality within lead schedule. Our previous projects in UAE (Dubai and Abu Dhabi), Philippines and Qatar solidifies our competency in global construction industries.


To be one of the elite Engineering, Sustainability, Architecture & Acoustic Consultancy in the Philippines and Asia by providing excellent quality services that exceeds the expectations of our esteemed Clients both local and International.

Montreal Group LLC

Montreal Group LLC (previously named as Montreal Building Design Management Consultancy) is incorporated as limited liability company under the companies regulations in Qatar Financial Center (QFC Lic. No. 00983). As provided in the License Certificate, pursuant to its powers under Article 11(1) of the Qatar Financial Centre Law the Qatar Financial Centre Authority has granted Montreal Group LLC a License to carry on the sustainability scope of work. Montreal Group LLC is registered GSAS Service Provider (Global Sustainability Assessment System, Qatar) and a member of USGBC (United States Green Building Council) dedicated to provide customer satisfaction to various green building certifications under LEED Rating System (USA scheme) and GSAS System. (Qatar scheme) and Estidama Pearl Rating System (Abu Dhabi, UAE scheme).

Our main office is in Manila, Philippines and Qatar branch is managing projects in the Middle East.


Aref Aysha

Al Ali Engineering, GM

“As far as performance is concern, we are satisfied with their services.”

John Bouzoukos

Salfo & Associates, MEP Director

“All I can say is that Mr. Sonny Calma's company are meeting our expectations and we're glad to continue working with them in our future projects”

Mohamed Mahmoud

Project Manager, Alameiah Engg. Consultant

“Sonny Calma from Montreal Group is very professional, and he provided solutions to many challenges we faced at site construction.”

Anuran Wickramasinghe

Former Country Director in Qatar

“Sonny has attended to our requirements in a professional and timely manner. We have no hesitation in recommending him for LEED and GSAS work.”

Shehab Atallah

BOOM General Construction, Project Manager

“Working with them is the right decision as they are knowledgeable and willing to extend their services in meeting our required GSAS rating.”

Ronald Bong Nicdao

Project Manager, PAT Engineering

“Their overall performance is highly commendable in terms of managing the whole sustainability process all the way to certification. We look forward with great anticipation to acquire their services in future projects.”