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
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151UndisclosedFreelancer employeesToronto, CanadaAquaroofing is an Architectural Design and Commercial Development company. Their small team of employees is in Toronto, Canada. Their team offers Architectural Design and Commercial Development.Read More
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152Undisclosed2 - 9 employeesOttawa, CanadaKovar Contracting, a Commercial Development company, was launched in 2002. The team specializes in Commercial Development and Architectural Design and is in Ottawa, Canada.Read More
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153Undisclosed10 - 49 employeesOttawa, CanadaCommercial Development company BBS CONSTRUCTION (ONTARIO) LTD was established in 1980. The firm specializes in Commercial Development and Architectural Design, and is small.Read More
Industries
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154$10,000+2 - 9 employeesToronto, CanadaLaunched in 2003, Lauren Hesse Design | Home Renovation | Interior Designer in Toronto is an Interior Design company. Their team offers Interior Design and Architectural Design.Read More
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155Undisclosed2 - 9 employeesOttawa, CanadaBencorp Construction is a Commercial Development company. Located in Ottawa, Canada, the team offers Commercial Development and Architectural Design.Read More
Industries
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156Undisclosed2 - 9 employeesToronto, CanadaBased in Toronto, Canada, RGS Interior Design and planning is a small Architectural Design and Interior Design company. Their services include Architectural Design and Interior Design.Read More
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157$10,000+50 - 249 employeesAtlanta, GABranding firm Adrenaline Agency was established in 1998. The team offers Branding and Architectural Design.Read More
Clients
First Horizon BankIndustries
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158UndisclosedFreelancer employeesToronto, CanadaGRender Studio is a small Toronto, Canada-based branding agency. Their services include Branding and Architectural Design.Read More
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159$5,000+Freelancer employeesToronto, CanadaFounded in 2024, Symmetric Electric Ltd. Is an Architectural Design company. Their services include Architectural Design and Lighting Design.Read More
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160Undisclosed10 - 49 employeesMississauga, CanadaConnected Elements is an Architectural Design company. Their small team is headquartered in Mississauga, Canada. Their team provides Architectural Design and Interior Design.Read More
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161Undisclosed10 - 49 employeesSt. Catharines, CanadaTHE LAROCQUE GROUP is a Commercial Development company. The company is located in St. Catharines, Canada. Their services include Commercial Development and Business Consulting.Read More
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162UndisclosedFreelancer employeesKitchener, CanadaThinkform is an Architectural Design and Interior Design company. They are based in Kitchener, Canada and have small team. Their services include Architectural Design and Interior Design.Read More
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163Undisclosed2 - 9 employeesToronto, CanadaFounded in 2007, Mesa Design Inc. Is a small Product Design company located in Toronto, Canada. Their team focuses on Product Design and Interior Design.Read More
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164Undisclosed2 - 9 employeesToronto, CanadaSPH Planning & Consulting, an Interior Design company, was established in 1999. The agency focuses on Interior Design and Architectural Design, and is small.Read More
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165$25,000+10 - 49 employeesBurlington, CanadaANT SOFT is an Architectural Design company. Their small team is in Burlington, Canada and Lahore, Pakistan and offers Architectural Design and IT staff augmentation. The agency was launched in 2017.Read More
Industries
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166UndisclosedFreelancer employeesOttawa, Canada3DShowing.com is an Architectural Design company. Founded in 2015, the company provides Architectural Design and Product Design.Read More
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167Undisclosed10 - 49 employeesBrampton, CanadaHeadquartered in Sheridan, Wyoming and Ahmedabad, India, BIMBOSS CONSULTANTS is an Architectural Design company. They specialize in Architectural Design and Product Design and were founded in 2014.Read More
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168Undisclosed2 - 9 employeesVaughan, CanadaHeadquartered in Vaughan, Canada, The House of Interior Design is a small Interior Design company. Their services include Interior Design and Architectural Design.Read More
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169Undisclosed2 - 9 employeesToronto, CanadaYCC Design Interiors is an Interior Design company. They are in Toronto, Canada and have small team. They specialize in Interior Design and Architectural Design.Read More
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170Undisclosed50 - 249 employeesWaterloo, CanadaNewGround is a Chesterfield, Missouri-based Architectural Design and Interior Design company. Founded in 1913, the team provides Architectural Design and Interior Design.Read More
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