Top 100 Interior Design Companies
The Best of December 2025
Interior design is a multidisciplinary field that requires science and art to create harmonious yet functional spaces. It combines furniture arrangement, space planning, lighting, and decor to create a visually pleasing space.
Essentially, interior design firms are professional service providers specializing in planning and designing interior spaces. They handle different kinds of projects, from residential spaces to commercial projects, offering tailored designs to meet their clients' specific requirements and ideas. These firms offer a range of services, including concept development, furniture and accessory selection, and sustainability consulting. Businesses that partner with interior design firms can create holistic office spaces and attractive stores that increase the value of their properties.
When searching for the ideal interior design partner, their portfolios can help you decide if they fit your project. Take a closer look at the past projects they have worked on and see if their approach fits your taste.
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List of the Best Interior Design Firms
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1951Undisclosed2 - 9 employeesLondon, EnglandBlack and Milk is an Interior Design company based in London, England. Their services include Interior Design.Read More
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1952Undisclosed2 - 9 employeesToronto, CanadaFounded in 1994, Decorators & Designers Association of Canada is an Interior Design company. The firm focuses on Interior Design, and is small.Read More
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1953UndisclosedFreelancer employeesThunder Bay, CanadaLisa Sandham Interior Design, a small Interior Design company, is headquartered in Thunder Bay, Canada. Their services include Interior Design.Read More
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1954Undisclosed2 - 9 employeesToronto, CanadaLaura Stein Interiors, an Interior Design company, is in Toronto, Canada. Their services include Interior Design.Read More
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1955Undisclosed2 - 9 employeesOakville, CanadaLaunched in 2006, Kate Davidson Design is a small Oakville, Canada-based Interior Design company. Their team provides Interior Design.Read More
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1956Undisclosed10 - 49 employeesUxbridge, CanadaBennett Design Associates is an Uxbridge, Canada-based Interior Design company. Established in 1997, the team focuses on Interior Design.Read More
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1957Undisclosed2 - 9 employeesOttawa, CanadaEstablished in 2004, Hay Design Incorporated is an Interior Design company. The small team focuses on Interior Design.Read More
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1958Undisclosed2 - 9 employeesSt. Catharines, CanadaFinesse Interior Design & Home Decor is an Interior Design company headquartered in St. Catharines, Canada. Founded in 2007, the team specializes in Interior Design.Read More
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1959Undisclosed2 - 9 employeesHamilton, CanadaDesign Link International is an Interior Design company. The team is in Hamilton, Canada, and their services include Interior Design.Read More
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1960Undisclosed2 - 9 employeesToronto, CanadaLocated in Toronto, Canada, Fleur-de-lis Interior Design is a small Interior Design company. Their services include Interior Design.Read More
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1961Undisclosed2 - 9 employeesSt. Catharines, CanadaEstablished in 1975, Lex Parker Design Consultants is a small St. Catharines, Canada-based Interior Design company. Their team offers Interior Design.Read More
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1962Undisclosed2 - 9 employeesToronto, CanadaToronto Interior Design Group, an Interior Design company, is in Toronto, Canada. The team provides Interior Design.Read More
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1963Undisclosed2 - 9 employeesWindsor, CanadaLionheart Interior Design is an Interior Design company. They are based in Windsor, Canada and have small team. Their team offers Interior Design.Read More
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1964Undisclosed2 - 9 employeesPort Carling, CanadaMuskoka Living Interiors, an Interior Design company, was established in 1998. They specializes in Interior Design.Read More
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1965Undisclosed2 - 9 employeesWhitby, CanadaRousseau's Fine Furniture & Interior Design is an Interior Design company. Located in Whitby, Canada, their team focuses on Interior Design.Read More
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1966Undisclosed2 - 9 employeesNiagara-on-the-Lake, CanadaEdwards designs, a small Interior Design company, is in Niagara-on-the-Lake, Canada. Their services include Interior Design.Read More
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1967Undisclosed2 - 9 employeesBurlington, CanadaRegina Sturrock Design Inc is an Interior Design company. The Burlington, Canada-based firm was founded in 1996. Their team provides Interior Design.Read More
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1968Undisclosed10 - 49 employeesToronto, CanadaFigure3, an Interior Design company, was established in 1995. Located in Toronto, Canada, the team focuses on Interior Design.Read More
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1969UndisclosedFreelancer employeesHalton Hills, CanadaLemon Drop Interior Design & Renovations is a small Interior Design company located in Halton Hills, Canada. Their services include Interior Design.Read More
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1970Undisclosed2 - 9 employeesBurlington, CanadaThe Feathered Bed is a small Burlington, Canada-based Interior Design company. The team specializes in Interior Design.Read More
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1971Undisclosed10 - 49 employeesGuelph, CanadaSmall Interior Design company Accents for Living- Furniture & Design, is based in Guelph, Canada. Their services include Interior Design.Read More
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1972Undisclosed2 - 9 employeesLakefield, CanadaStony Lake Furniture is an Interior Design company. They are located in Lakefield, Canada and have small team. Their services include Interior Design.Read More
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1973Undisclosed2 - 9 employeesWaterloo, CanadaDecorators Corner is an Interior Design company. They are located in Waterloo, Canada and have small team. Their team specializes in Interior Design.Read More
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1974Undisclosed2 - 9 employeesLondon, CanadaInterior Design company IN design associates inc. Was established in 2008. Headquartered in London, Canada, the team offers Interior Design.Read More
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1975Undisclosed10 - 49 employeesVancouver, CanadaSSDG Interiors Inc. Is an Interior Design company. The team specializes in Interior Design, and the firm is headquartered in Vancouver, Canada.Read More
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1976Undisclosed50 - 249 employeesToronto, CanadaLaunched in 2011, Mason Studio Inc. Is a midsize Toronto, Canada-based Interior Design company. Their team specializes in Interior Design.Read More
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1977Undisclosed10 - 49 employeesToronto, CanadaBORTOLOTTO is an Interior Design company. They were launched in 1999 and offer Interior Design.Read More
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1978Undisclosed2 - 9 employeesToronto, CanadaHeadquartered in Toronto, Canada, Audax Architecture Inc. Is a small Interior Design company. The team offers Interior Design.Read More
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1979Undisclosed10 - 49 employeesToronto, CanadaInterior Design company the DesignAgency is headquartered in Toronto, Canada. Established in 1998, the team offers Interior Design.Read More
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1980Undisclosed2 - 9 employeesOakville, CanadaParsons Interiors Ltd. Is a small Oakville, Canada-based Interior Design company. Their services include Interior Design.Read More
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