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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91Undisclosed2 - 9 employeesToronto, CanadaElemental Architects Inc. Is a Toronto, Canada-based Architectural Design company. Their services include Architectural Design.Read More
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92Undisclosed2 - 9 employeesMarkham, CanadaMarkham High Tech Architects is an Architectural Design company. They were founded in 2003 and specialize in Architectural Design.Read More
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93Undisclosed50 - 249 employeesToronto, CanadaParkin Architects Limited, an Architectural Design company, is located in Toronto, Canada. Launched in 1947, the team provides Architectural Design.Read More
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94Undisclosed10 - 49 employeesToronto, CanadaSvN Architects + Planners is an Architectural Design company based in Toronto, Canada. They focus on Architectural Design and were founded in 1978.Read More
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95Undisclosed50 - 249 employeesToronto, CanadaERA Architects Inc. Is an Architectural Design company. Founded in 1990, the team offers Architectural Design. The firm is in Toronto, Canada.Read More
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96Undisclosed2 - 9 employeesLondon, CanadaMarsh Katsios Architect, a small Architectural Design company, is based in London, Canada. Their services include Architectural Design.Read More
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97Undisclosed2 - 9 employeesWaterloo, CanadaMasri O Inc. Architects is an Architectural Design company. Their small team is in Waterloo, Canada. Their services include Architectural Design.Read More
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98Undisclosed2 - 9 employeesKenora, CanadaBoreal Architecture Studio Inc. Is an Architectural Design company. Their small team is based in Kenora, Canada. Their services include Architectural Design.Read More
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99Undisclosed50 - 249 employeesToronto, CanadaTurner Fleischer Architects Inc. Is a midsize Architectural Design company in Toronto, Canada. Their services include Architectural Design and Interior Design.Read More
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100Undisclosed50 - 249 employeesOttawa, CanadaEstablished in 1992, Fotenn Planning + Design is a midsize Architectural Design and graphic design company. Their team focuses on Architectural Design and Graphic Design.Read More
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101Undisclosed50 - 249 employeesToronto, CanadaNAK Design Strategies, an Architectural Design and graphic design company, was founded in 1987. In Toronto, Canada and Ottawa, Canada, the team offers Architectural Design and Graphic Design.Read More
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102Undisclosed50 - 249 employeesUxbridge, CanadaUCEL Inc is a Commercial Development company. Located in Uxbridge, Canada, their team offers Commercial Development and Contract Manufacturing.Read More
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103$250,000+10 - 49 employeesMarkham, CanadaSysconverge is a Commercial Development company. Headquartered in Markham, Canada, the firm was established in 2015. Their services include Commercial Development and Engineering.Read More
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104Undisclosed10 - 49 employeesToronto, CanadaCubecom Commercial Realty Inc. Is a small Toronto, Canada-based Commercial Brokerage Services company. The team specializes in Commercial Brokerage Services and Architectural Design.Read More
Industries
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105$5,000+10 - 49 employeesHamilton, CanadaCruzz Construction is an Architectural Design company. Founded in 2018, the company specializes in Architectural Design and Interior Design.Read More
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106$5,000+2 - 9 employeesToronto, CanadaMAPA interiors, a small Interior Design company, is in Toronto, Canada. The team provides Interior Design and Architectural Design.Read More
Industries
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107$1,000+10 - 49 employeesBrampton, CanadaHonestus Painting and Home Improvement is a Commercial Development company. They focus on Commercial Development and Architectural Design and are headquartered in Brampton, Canada.Read More
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108Undisclosed10 - 49 employeesToronto, CanadaIn Toronto, Canada, Cumulus Architects Inc. Is an Architectural Design and Interior Design company. Their services include Architectural Design and Interior Design.Read More
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109Undisclosed10 - 49 employeesToronto, CanadaKFA Architects and Planners is a small Toronto, Canada-based Architectural Design and Interior Design company. Their services include Architectural Design and Interior Design.Read More
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110Undisclosed10 - 49 employeesOttawa, CanadaChmiel Architects Incorporated is a small Architectural Design and Interior Design company founded in 1996. Their team focuses on Architectural Design and Interior Design.Read More
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111Undisclosed10 - 49 employeesToronto, CanadaEstablished in 1999, Zoha Masonry, a small Commercial Development company, is headquartered in Toronto, Canada. Their services include Commercial Development and Architectural Design.Read More
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112Undisclosed2 - 9 employeesEast Gwillimbury, CanadaSkywatch Photography is an Architectural Design company based in East Gwillimbury, Canada. Established in 2023, the team offers Architectural Design and Graphic Design.Read More
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113$10,000+2 - 9 employeesOttawa, CanadaLocated in Ottawa, Canada, Marketplace Studio is a web design company. They focus on Web Design and UX/UI Design and were launched in 2021.Read More
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114Undisclosed2 - 9 employeesLondon, CanadaLaunched in 1995, Lighthouse Landscape is an Architectural Design and Commercial Property Management company. The team offers Architectural Design and Commercial Property Management.Read More
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115Undisclosed2 - 9 employeesToronto, CanadaVihara Designs is a web design company. Headquartered in Jaipur, India and Toronto, Canada, the company was launched in 2021. Their team offers Web Design and Architectural Design.Read More
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116$10,000+10 - 49 employeesToronto, CanadaBilldr Renovation is an Architectural Design and Interior Design company established in 2020. The team provides Architectural Design and Interior Design.Read More
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117Undisclosed250 - 999 employeesToronto, CanadaKasian is a midsize Vancouver, Canada-based Architectural Design and Interior Design company. The team specializes in Architectural Design and Interior Design.Read More
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118Undisclosed2 - 9 employeesVaughan, CanadaHeadquartered in Vaughan, Canada, MSH Engineers is an engineering company. The small firm was established in 2009. Their team offers engineering, architectural design, lighting design, commercial property management, and more.Read More
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119Undisclosed10 - 49 employeesOttawa, CanadaWSA Light Energy Design is a Lighting Design company launched in 1974. The team specializes in Lighting Design and Architectural Design and is based in Ottawa, Canada.Read More
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120Undisclosed10 - 49 employeesBarrie, CanadaLighting Design company Entertaining Interiors was founded in 1994. The small team offers Lighting Design and Architectural Design.Read More
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