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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1$10,000+2 - 9 employeesOttawa, CanadaRead More
Jackpine is a branding agency out of Ottowa, Canada. Founded in 2013, the company consists of under 10 employees who work primarily with mid-market clients in various industries. They offer branding services as well as marketing and digital strategy.
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HyattIndustries
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2$5,000+2 - 9 employeesToronto, CanadaEstablished in 2011, Arc & Co. Design Collective is a small architectural design company located in Toronto, Canada. Their services include architectural design, packaging design, graphic design, and other design.Read More
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3$75,000+10 - 49 employeesVaughan, CanadaRead More
GTA General Contractors Ltd. Is a commercial development and interior design company. The small team is headquartered in Vaughan, Canada. Their services include commercial development and interior design.
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4$250,000+50 - 249 employeesMississauga, CanadaBUILD IT is a commercial development company. They are in Mississauga, Canada and Calgary, Canada and have a midsize team that specializes in commercial development, architectural design, interior design, engineering, and more. The agency was established in 2008.Read More
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5$250,000+50 - 249 employeesMississauga, CanadaHKC Construction is a Mississauga, Canada-based Commercial Development company. The midsize team offers Commercial Development and Architectural Design and was launched in 2010.Read More
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6$1,000+10 - 49 employeesVaughan, CanadaAvanti Landscaping, an Architectural Design company, was launched in 2020. The agency offers Architectural Design, and is small.Read More
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7Undisclosed2 - 9 employeesHaydon, CanadaThe Landscapr, an Architectural Design company, was launched in 2018. Located in Haydon, Canada and Haydon, Canada, the team focuses on Architectural Design.Read More
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8Undisclosed10 - 49 employeesToronto, CanadaELM Landscaping is an Architectural Design company. Their team is located in Toronto, Canada and provides Architectural Design.Read More
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9$250,000+2 - 9 employeesToronto, CanadaDewson Architects Inc. Is an Architectural Design company located in Toronto, Canada. Established in 1997, the team focuses on Architectural Design.Read More
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10Undisclosed2 - 9 employeesLondon, CanadaNature’s Image Landscaping is a small Architectural Design company. They focus on Architectural Design and were established in 1995.Read More
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11$5,000+10 - 49 employeesMississauga, CanadaEstablished in 1998, DedON Layouts INC is an Architectural Design company. The team specializes in Architectural Design and Other Design.Read More
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12$100,000+2 - 9 employeesToronto, CanadaArchitectural Design company Woodsmith Construction Inc. Offers Architectural Design and Interior Design. They were launched in 2001.Read More
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13Undisclosed2 - 9 employeesOakville, CanadaIDiM Architects Inc, an Architectural Design company, is headquartered in Oakville, Canada. Founded in 2020, the team provides Architectural Design.Read More
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14Undisclosed2 - 9 employeesToronto, CanadaLaunched in 2014, BIM Services LLC, a small Architectural Design company, is located in Austin, Texas and Toronto, Canada. Their team specializes in Architectural Design.Read More
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15$1,000+50 - 249 employeesMississauga, CanadaDecora Ceilings is an Architectural Design and Interior Design company. Established in 2022, the firm offers Architectural Design and Interior Design.Read More
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16Undisclosed2 - 9 employeesToronto, CanadaFounded in 1981, Kenny Kim Landscaping, a small Architectural Design company, is located in Toronto, Canada. Their services include Architectural Design.Read More
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17$1,000+10 - 49 employeesOttawa, CanadaSaree Parry Design, an Architectural Design and Commercial Development company, was founded in 2015. Located in Ottawa, Canada, the team specializes in Architectural Design and Commercial Development.Read More
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18$250,000+10 - 49 employeesToronto, CanadaLori Morris Design is an Architectural Design and Interior Design company founded in 1987. The firm provides Architectural Design and Interior Design.Read More
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19$5,000+10 - 49 employeesRichmond Hill, CanadaCOVERS in Play is an Architectural Design and Engineering company founded in 2024. The agency specializes in Architectural Design and Engineering, and is small.Read More
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20$5,000+10 - 49 employeesBurlington, CanadaArchitectural Design and Interior Design company domilya GROUP Inc. Is headquartered in Burlington, Canada. The team provides Architectural Design and Interior Design.Read More
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21Undisclosed10 - 49 employeesToronto, CanadaArt, Design + Learning Studio is a small Architectural Design and Interior Design company founded in 2020. Their team focuses on Architectural Design and Interior Design.Read More
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22Undisclosed10 - 49 employeesLondon, CanadaIn London, Canada, Upper Canada Landscaping Inc. Is an Architectural Design and Interior Design company. The team focuses on Architectural Design and Interior Design.Read More
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23$5,000+2 - 9 employeesRichmond Hill, CanadaArchitectural Design and Interior Design company Creation Builders is in Richmond Hill, Canada. Founded in 2016, the team focuses on Architectural Design and Interior Design.Read More
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24Undisclosed10 - 49 employeesOttawa, CanadaGet Renovate is a small Architectural Design and Commercial Property Management company. They focus on Architectural Design and Commercial Property Management and were founded in 2005.Read More
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25Undisclosed10 - 49 employeesLondon, CanadaArchitectural Design and Interior Design company Master Painters is located in London, Canada. They offer Architectural Design and Interior Design.Read More
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26$250,000+2 - 9 employeesToronto, CanadaPHAEDRUS Studio is an Architectural Design company. The small Toronto, Canada-based team provides Architectural Design and Interior Design. The company was founded in 2015.Read More
Industries
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27$1,000+10 - 49 employeesToronto, CanadaLeman Construction, an Architectural Design and Interior Design company, was founded in 2010. The company offers Architectural Design and Interior Design, and is small.Read More
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28$1,000+10 - 49 employeesToronto, CanadaIn Toronto, Canada, MocConcepts.ca - Quality Kitchen Cabinets is an Architectural Design and Interior Design company. They offer Architectural Design and Interior Design.Read More
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29$25,000+2 - 9 employeesToronto, CanadaElite Renovations Design & Build is an Architectural Design and Interior Design company headquartered in Toronto, Canada and Toronto, Canada. They offer Architectural Design and Interior Design.Read More
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30$5,000+2 - 9 employeesNewmarket, CanadaArchitectural Design company Studio Forma Interior Design Inc. Specializes in Architectural Design and Interior Design. They were founded in 2015.Read More
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