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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121Undisclosed10 - 49 employeesToronto, CanadaLaunched in 2018, One York Construction Management Inc. Is a Commercial Development company. The company offers Commercial Development and Architectural Design.Read More
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122Undisclosed10 - 49 employeesOttawa, CanadaHoney Construction Management is a Commercial Development company headquartered in Ottawa, Canada. They specialize in Commercial Development and Architectural Design and were founded in 2006.Read More
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123Undisclosed10 - 49 employeesWoodstock, CanadaSignify Design is a small graphic design agency. Founded in 2006, the team focuses on Graphic Design and Architectural Design.Read More
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124$10,000+Freelancer employeesToronto, CanadaUrbanism by Design is an Architectural Design company in Toronto, Canada. They provide Architectural Design and were launched in 2018.Read More
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125Undisclosed2 - 9 employeesHamilton, CanadaEstablished in 1986, Paradise Decks Inc. Is an Interior Design company. Located in Hamilton, Canada, the team focuses on Interior Design and Lighting Design.Read More
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126Undisclosed2 - 9 employeesToronto, CanadaCommercial Development company Atlas Construction Ltd was founded in 1974. The company offers Commercial Development and Architectural Design, and is small.Read More
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127UndisclosedFreelancer employeesAjax, CanadaProcuts painting, an Architectural Design company, was founded in 2007. They offers Architectural Design.Read More
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128Undisclosed2 - 9 employeesToronto, CanadaOP Group is an Architectural Design company. Headquartered in Toronto, Canada, the agency provides Architectural Design.Read More
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129Undisclosed10 - 49 employeesToronto, CanadaRender3DQuick.com is a small Toronto, Canada-based Architectural Design company. Their services include Architectural Design and Product Design.Read More
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130Undisclosed10 - 49 employeesVaughan, CanadaSMART Group is an Architectural Design company launched in 2018. Based in Vaughan, Canada, the team specializes in Architectural Design and Product Design.Read More
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131Undisclosed50 - 249 employeesToronto, CanadaBusiness Consulting company LRI was launched in 1986. The team focuses on Business Consulting and Engineering.Read More
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132Undisclosed1,000 - 9,999 employeesToronto, CanadaBlack & McDonald Limited, a large Commercial Development company, is headquartered in Toronto, Canada. The team focuses on Commercial Development and Engineering.Read More
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133Undisclosed50 - 249 employeesToronto, CanadaFounded in 1986, FORREC is a branding firm. The team focuses on Branding and Architectural Design.Read More
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134Undisclosed10 - 49 employeesToronto, CanadaRead More
Pedram Pearl Palace is a commercial development company. Their small team is in Toronto, Canada. Their services include commercial development, architectural design, interior design, and engineering.
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135Undisclosed10 - 49 employeesOttawa, Canada4té inc. Is an Interior Design company launched in 1987. The firm focuses on Interior Design and Architectural Design, and is small.Read More
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136Undisclosed10 - 49 employeesWaterloo, CanadaABA Architects Inc. Is an Interior Design company. The Waterloo, Canada-based firm was launched in 1990. Their services include Interior Design and Architectural Design.Read More
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137Undisclosed10 - 49 employeesToronto, CanadaG. L. Smith Planning & Design is a Toronto, Canada-based Interior Design company. They offer Interior Design and Architectural Design and were founded in 1984.Read More
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138Undisclosed10 - 49 employeesToronto, CanadaCommercial Development company Dancon Construction Services Inc. Was launched in 2008. The team specializes in Commercial Development and Architectural Design and is based in Toronto, Canada.Read More
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139Undisclosed10 - 49 employeesToronto, CanadaAddison Construction is a Toronto, Canada-based Commercial Development company. They provide Commercial Development and Architectural Design.Read More
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140Undisclosed10 - 49 employeesOttawa, CanadaFTC General Contractor is a Commercial Development company. Established in 1972, the agency is located in Ottawa, Canada. Their services include Commercial Development and Architectural Design.Read More
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141Undisclosed10 - 49 employeesToronto, CanadaABSTRAKT Studio is an Architectural Design company. The Toronto, Canada-based firm was established in 2000. Their team focuses on Architectural Design.Read More
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142Undisclosed2 - 9 employeesWindsor, CanadaStudio G & G, Inc., an Architectural Design company, was established in 2003. The agency provides Architectural Design.Read More
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143Undisclosed2 - 9 employeesCollingwood, CanadaTim Fanstone Architect is a small Collingwood, Canada-based Architectural Design company. Their services include Architectural Design.Read More
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144Undisclosed50 - 249 employeesBurlington, CanadaMidsize Architectural Design and Interior Design company Chamberlain Architect Services Limited, is located in Burlington, Canada. The team focuses on Architectural Design and Interior Design.Read More
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145Undisclosed10 - 49 employeesToronto, CanadaHistoric Restoration Inc., an Architectural Design company, was founded in 2004. The team specializes in Architectural Design.Read More
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146Undisclosed2 - 9 employeesToronto, CanadaIn Toronto, Canada, Contech Construction Services Inc. Is a Commercial Development company. Established in 1996, the team provides Commercial Development and Architectural Design.Read More
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147Undisclosed2 - 9 employeesToronto, CanadaBased in Toronto, Canada, Crown Constructions is a Commercial Development company. Their services include Commercial Development and Architectural Design.Read More
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148Undisclosed2 - 9 employeesAurora, CanadaStudio 5253 Canada is an Architectural Design company. Established in 2012, their team focuses on Architectural Design and Product Design.Read More
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149Undisclosed2 - 9 employeesToronto, CanadaBlok Design, an Advertising company, is headquartered in Toronto, Canada. They provide Advertising and Event Marketing.Read More
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150Undisclosed2 - 9 employeesOakville, CanadaBAS Group is an Oakville, Canada-based Architectural Design company. They provide Architectural Design and Graphic Design.Read More
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