These Canadian architecture and planning companies are mainly mid-sized to large firms, with a focus on comprehensive design services for a variety of sectors. Many emphasize sustainable development, innovative design, and creating spaces that enhance communities. Companies such as NORR and Adamson Associates Architects offer global architectural practices, while B+H Architects designs inspiring buildings and environments worldwide. Lemay focuses on sustainable development, and Architecture49 Inc. creates inspiring spaces that enhance community health and vitality. Most of these companies are headquartered in major Canadian cities, with a notable concentration in Toronto.
Several firms specialize in broad architectural and design services, often including interior design, landscape architecture, and urban planning. For example, Kasian Architecture Interior Design and Planning uses design to improve lives, and Diamond Schmitt creates sustainable buildings for cultural, academic, and civic spaces. Omicron offers integrated development services in Western Canada, and Parkin Architects specializes in healthcare and institutional design. The data shows a strong concentration of headquarters in Toronto, with other significant hubs in Montreal and Vancouver.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 | 947 | ||||
| 2 |
B+H Architectsbharchitects.com
Designing inspiring, memorable, and functional buildings and environments for clients globally, offering architecture, interior design, landscape, planning, and consulting services. |
604 | |||
| 3 |
Adamson Associates Architectsadamson-associates.com
Global architectural practice offering a full range of planning, interior, and urban design services worldwide with a focus on innovative design and technical expertise |
417 | |||
| 4 |
Architecture49 Inc.architecture49.com
Architecture49 is a collective of experts in designing and building complex projects, creating inspiring spaces that enhance communities' health, vitality, and sustainability |
408 | |||
| 5 | 403 | ||||
| 6 |
Kasian Architecture Interior Design and Planningkasian.com
This company uses design to improve lives and create connections between people and place, delivering award-winning buildings across various sectors |
366 | |||
| 7 |
Parkin Architectsparkin.ca
An award-winning Canadian architecture practice specializing in healthcare, recreation, research, justice, and institutional design with a focus on positively impacting lives |
361 | |||
| 8 |
Diamond Schmittdsai.ca
Global architecture practice creating sustainable buildings with innovative design solutions for cultural, academic, healthcare, and civic spaces worldwide Named among top employers and greenest companies |
331 | |||
| 9 |
Omicronomicronaec.com
Integrated development services firm in Western Canada, offering solutions in various sectors such as industrial, commercial, residential, and more Focus on collaboration for better project experiences |
322 | |||
| 10 | 184 | ||||
| 11 |
BDP Quadranglebdp.com
Architecture, design, and engineering firm in North America, specializing in various sectors including residential, workplace, retail, education, and health |
166 | |||
| 12 |
BBB Architectsbbb.ca
A full-service architectural firm specializing in master planning, architectural and interior design, project management, focusing on collaborative designs for various projects worldwide |
165 | |||
| 13 |
脝dificaaedifica.com
A leading Canadian-based architectural and design firm creating sustainable, inspiring spaces across multiple sectors with a collaborative, human-centric approach |
162 | |||
| 14 |
Erie Architectural Productsykkap.com
High-performance facade solutions provider specializing in designing, testing, and engineering building envelope solutions for large-scale projects using curtain wall systems |
160 | |||
| 15 |
KPMB Architectskpmb.com
Design solutions focused on positive change, addressing complex challenges and unlocking opportunities for clients and communities with expertise, passion, and creativity |
159 | |||
| 16 |
BC2groupebc2.ca
Urban development and strategic consulting services including urban planning, landscape architecture, economic optimization, and heritage studies with a focus on sustainability and innovation |
156 | |||
| 17 |
Jodoin Lamarre Pratte architectesjlp.ca
Specializing in institutional architecture for healthcare, transportation, education, research, and culture, focusing on sustainable, human-centered design with a diverse team |
153 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 18 |
STGM Architecturestgm.ca
Founded in 2001, a leading architectural firm in Quebec with a team of over 150 professionals focused on improving people's quality of life through innovative, sustainable designs |
151 | |||
| 19 |
Reimaginereimagine.ca
The company focuses on a positive and sustainable approach to architecture, emphasizing regeneration and a happy journey to achieve it |
101 | |||
| 20 |
Kirkor Architects and Plannerskirkorarchitects.com
An award-winning architectural design firm creating mixed-use projects, residential buildings, and community facilities with a focus on sustainability and innovation |
96 | |||
| 21 |
ZAS Architects + Interiorszasa.com
A full-service design firm specializing in architecture, planning, transportation, and interior design, with a focus on innovative, sustainable, award-winning projects |
95 | |||
| 22 |
Acton Ostry Architects Inc.actonostry.ca
A design-focused architecture firm founded in 1992, dedicated to sustainable and thoughtful design that responds to local context and client needs |
45 | |||
| 23 |
Chamberlain Architect Services Limitedchamberlainipd.com
A leading company dedicated to improving environments through innovative design, construction, and project management solutions, focusing on sustainability and client value |
39 | |||
| 24 |
CSV Architectscsv.ca
An Ottawa-based architectural practice specializing in sustainable design for institutional, commercial, and residential projects, with a focus on green buildings and community development |
33 | |||
| 25 |
Teeple Architectsteeplearch.com
A renowned architectural firm specializing in innovative design, technical excellence, and exceptional service for public and private sector projects |
31 | |||
| 26 |
Truspace Design & Construction Firmtruspace.ca
A design-driven company offering single-source interior solutions for commercial spaces, creating innovative designs to inspire and maximize potential with turnkey solutions |
27 | |||
| 27 |
f-BLOK architecture incf-blok.ca
Innovative problem-solvers in construction, focused on efficient project delivery through collaboration, thoughtful design, and maximizing investment in sustainable solutions |
15 | |||
| 28 |
Edge Architectsedgeltd.ca
Architectural firm focused on design excellence through innovation, collaboration, and professionalism, using BIM software and digital scanning for sustainable solutions |
11 | |||
| 29 |
Construction Technologiesconstruction-technologies.ca
The company offers low-cost, high-efficiency, renewable building materials and designs using basic technology for large or small production runs |
7 | |||
| 30 |
Waymark Architecturewaymarkarchitecture.com
A collaborative architecture firm specializing in sustainable design, customizing solutions to meet each client's unique sustainability and social innovation goals |
6 | |||
| 31 |
borg architect inc.
An architecture firm focusing on sustainable practices, remote work, client consultation, and community engagement for unique and culturally respectful projects |
6 | |||
| 32 |
PG Design Studio Incpgdstudio.com
Innovative construction company focused on strong project concepts, collaborative integrated project delivery, and client-centric design solutions Join our team today! |
6 | |||
| 33 |
Topia solutions jardins inctopia.ca
This landscape architecture company focuses on creating environmentally-friendly and aesthetically pleasing gardens using native plants and sustainable materials They prioritize client comfort and satisfaction |
5 | |||
| 34 |
Passa Associates Architectspassa.ca
The company specializes in sensitive and imaginative building design, focusing on architectural excellence, sustainability, and environmental responsibility for all projects |
3 | |||
| 35 |
Paula Bowley Architects Inc.bowleyarchitects.ca
A company specializing in sustainable architecture and construction, with a focus on universal accessibility, social responsibility, equity, and community consultation |
2 | |||
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How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026.
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