Top 100 Architecture Firms in Ontario
The Best of December 2025Looking for a top architect in Ontario?
The architectural design process involves five main steps. First, pre-design refers to the ideation and planning phase. It involves working with you (the client) to understand needs and budget. Second, schematic design involves visually presenting multiple options to hone in on the right design and construction plans. Third, is design development, which includes creating a physical or computer model of the agreed on design and construction plan. Fourth, is construction development, which involves selecting the materials needed to fulfill the design, such as flooring, cabinetry, countertop materials, and more. The final stage is construction development.
An architectural designer will guide you through each step in the design and construction process. You'll benefit from the architect's connections to contractors and knowledge of the permitting process in your area.
To assist you in your search for a partner, we’ve compiled this list of the top architecture firms in Ontario. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best Ontario Architecture Companies
-
31Undisclosed2 - 9 employeesLondon, CanadaCraftsman’s Seal - Painting Limited is an Architectural Design and Interior Design company. The team provides Architectural Design and Interior Design, and the agency is based in London, Canada.Read More
-
32Undisclosed2 - 9 employeesElora, CanadaArchitectural Design company Topline Pavement Services was founded in 1985. The team specializes in Architectural Design and Commercial Property Management and is headquartered in Elora, Canada.Read More
-
33Undisclosed10 - 49 employeesToronto, CanadaLocated in Toronto, Canada, Vicolo Construction is an Architectural Design company. Founded in 1997, the team specializes in Architectural Design and Interior Design.Read More
-
34Undisclosed2 - 9 employeesToronto, CanadaArchitectural Design and Commercial Property Management company Snowflake Landscaping and snowplowing was launched in 2008. The firm focuses on Architectural Design and Commercial Property Management.Read More
-
35Undisclosed50 - 249 employeesMississauga, CanadaFounded in 1977, Sensyst is an Interior Design company. The midsize team focuses on Interior Design.Read More
-
36$1,000+2 - 9 employeesNewmarket, CanadaInterlink Doors & Windows Inc. Is a Newmarket, Canada-based Architectural Design and Interior Design company. Their services include Architectural Design and Interior Design.Read More
-
37$5,000+10 - 49 employeesToronto, CanadaLocated in Surrey, Canada and Toronto, Canada, Geomount Inc. Is an AR/VR development company. They provide AR/VR development and Corporate Photography.Read More
Industries
-
38Undisclosed2 - 9 employeesOttawa, CanadaIn Ottawa, Canada and Ottawa, Canada, On Point Renovations is a small Architectural Design company. Their services include Architectural Design and Commercial Development.Read More
-
39Undisclosed2 - 9 employeesToronto, CanadaMaizon Web is a web design agency. They are in Toronto, Canada and have small team of experts. Their services include Web Design and UX/UI Design.Read More
Clients
H! Home -
40Undisclosed2 - 9 employeesHamilton, CanadaIan McGregor Pools & Landscapes is an Architectural Design company. They specialize in Architectural Design and Lighting Design and are headquartered in Hamilton, Canada.Read More
-
41Undisclosed10 - 49 employeesHamilton, CanadaLocated in Hamilton, Canada, Invizij Architects Inc is an Architectural Design company. Their services include Architectural Design.Read More
-
42Undisclosed50 - 249 employeesToronto, CanadaKPMB Architects is an Architectural Design company. Founded in 1987, the company is in Toronto, Canada. Their services include Architectural Design.Read More
-
43Undisclosed2 - 9 employeesToronto, CanadaICON Architects Inc. Is an Architectural Design company. They were established in 2008 and focus on Architectural Design.Read More
-
44Undisclosed50 - 249 employeesToronto, CanadaMidsize Architectural Design company Kirkor Architects and Planners, is in Toronto, Canada. Their services include Architectural Design.Read More
-
45Undisclosed2 - 9 employeesOttawa, CanadaPye & Richards is an Architectural Design company. Their small team is located in Ottawa, Canada. Their services include Architectural Design.Read More
-
46Undisclosed2 - 9 employeesLondon, CanadaSmall Architectural Design company Endri Poletti Architect Inc., is based in London, Canada. The team offers Architectural Design.Read More
-
47Undisclosed2 - 9 employeesOttawa, CanadaDouglas Cardinal Architect Inc., an Architectural Design company, provide Architectural Design. They were founded in 1964.Read More
-
48Undisclosed2 - 9 employeesToronto, CanadaAltius Architecture Inc is an Architectural Design company. They are headquartered in Toronto, Canada and have small team. Their team focuses on Architectural Design.Read More
-
49Undisclosed2 - 9 employeesLondon, CanadaMatter architectural studio inc. Is a small Architectural Design company established in 2015. Their team offers Architectural Design.Read More
-
50Undisclosed2 - 9 employeesToronto, CanadaPaul Raff Studio is an Architectural Design company. They are headquartered in Toronto, Canada and have small team. Their services include Architectural Design.Read More
-
51Undisclosed10 - 49 employeesGuelph, CanadaIn Guelph, Canada, BJC architects inc. Is a small Architectural Design company. Their services include Architectural Design.Read More
-
52Undisclosed2 - 9 employeesVaughan, CanadaBaldassarra Architects Inc., an Architectural Design company, is in Vaughan, Canada. They offer Architectural Design and were established in 1986.Read More
-
53Undisclosed2 - 9 employeesToronto, CanadaVanle Architect Inc. Is a Toronto, Canada-based Architectural Design company. Their services include Architectural Design.Read More
-
54Undisclosed2 - 9 employeesHamilton, CanadaThier Curran Architects Inc is an Architectural Design company established in 2005. Their services include Architectural Design.Read More
-
55Undisclosed2 - 9 employeesOakville, CanadaATA Architects Inc. Is an Architectural Design company. Located in Oakville, Canada, the firm provides Architectural Design.Read More
-
56Undisclosed10 - 49 employeesKitchener, CanadaIn Kitchener, Canada, MartinSimmons Architects Inc. Is a small Architectural Design company. The team focuses on Architectural Design.Read More
-
57Undisclosed10 - 49 employeesOttawa, CanadaCOLE+Associates Architects Inc is an Architectural Design company. The Ottawa, Canada-based firm was established in 1986. Their team provides Architectural Design.Read More
-
58Undisclosed2 - 9 employeesOttawa, CanadaJim Bell Architectural Design Inc. Is a small Architectural Design company located in Ottawa, Canada. The team focuses on Architectural Design.Read More
-
59Undisclosed2 - 9 employeesGuelph, CanadaArchitectural Design company Grinham Architects specializes in Architectural Design. They are located in Guelph, Canada.Read More
-
60Undisclosed50 - 249 employeesToronto, CanadaFounded in 1984, ZAS Architects + Interiors Inc., a midsize Architectural Design company, is headquartered in Toronto, Canada. Their team specializes in Architectural Design.Read More
Get connected with a company for free
Tell us about your project, and we'll match you with vetted companies that meet your requirements.
Get connected with the right company for you
We'll do the work for you – finding and connecting you with service providers that meet your exact requirements.
Schedule Consultation