Top 100 Architecture Firms in California
The Best of December 2025Looking for a top architect in California?
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 California. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best California Architecture Companies
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1$25,000+10 - 49 employeesPalo Alto, CARead More
Deepsea Developments, an IoT development company, was launched in 2017. Their small team is located in Palo Alto, California and Cali, Colombia and specializes in IoT development, architectural design, and custom software development.
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2$50,000+10 - 49 employeesSan Diego, CARead More
Achieve Internet is a software development company that's headquartered in San Diego; they have another office in Los Angeles. Founded in 2002, Achieve Internet does web development, enterprise content management, sales intelligence, enterprise app modernization, CRM consulting, and e-commerce development. Clients are mostly midmarket companies and in the healthcare and arts and entertainment sectors. They have about 41 employees.
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DexcomIndustries
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3$100,000+10 - 49 employeesSanta Barbara, CAMosaic Architects & Interiors is an Architectural Design company in Boulder, Colorado and Santa Barbara, California. Established in 2002, the team focuses on Architectural Design and Interior Design.Read More
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4$50,000+10 - 49 employeesSan Diego, CAMurray Lampert Design, Build, Remodel is an Architectural Design company. Established in 1975, the team focuses on Architectural Design. The agency is in San Diego, California.Read More
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5Undisclosed2 - 9 employeesLos Angeles, CAEstablished in 2011, Synthesis Design + Architecture is a small Architectural Design company in Los Angeles, California. Their team offers Architectural Design.Read More
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6$1,000+2 - 9 employeesFremont, CAZeebrix is a. Their small team is located in Fremont, California. Their services include. The firm was founded in 2023.Read More
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7$250,000+10 - 49 employeesLos Angeles, CATim Barber Architects is an Architectural Design company. They are in Los Angeles, California. Their team focuses on Architectural Design.Read More
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8Undisclosed2 - 9 employeesLos Angeles, CAEstablished in 2018, Ergeon, a small Architectural Design company, is located in Los Angeles, California. Their team provides Architectural Design.Read More
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9$10,000+1,000 - 9,999 employeesAnaheim, CAArchitectural Surfaces is a large Anaheim, California-based Architectural Design company. Their services include Architectural Design and Commercial Development.Read More
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10$10,000+2 - 9 employeesSan Francisco, CAFounded in 2015, STUDIO BANAA is an Architectural Design company. The company provides Architectural Design and Interior Design, and is small.Read More
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11$25,000+250 - 999 employeesNewport Beach, CAENG is an Architectural Design company. They specialize in Architectural Design and were established in 2007.Read More
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12$5,000+2 - 9 employeesLos Angeles, CALaunched in 2008, EZ Plans Architects, a small Architectural Design company, is headquartered in Los Angeles, California. Their team focuses on Architectural Design and Interior Design.Read More
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13Undisclosed10 - 49 employeesValencia, CALocated in Valencia, California, Lawn Kings Inc. Is an Architectural Design company. Their services include Architectural Design.Read More
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14Undisclosed10 - 49 employeesBerkeley, CATrachtenberg Architects, Inc., an Architectural Design company, was launched in 1991. The small team focuses on Architectural Design.Read More
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15Undisclosed10 - 49 employeesSan Diego, CAMcCullough Landscape Architecture, Inc. Is an Architectural Design company based in San Diego, California. The team offers Architectural Design.Read More
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16Undisclosed2 - 9 employeesSanta Monica, CAArchitectural Design company Kaplan Chen Kaplan is based in Santa Monica, California. The team provides Architectural Design.Read More
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17$1,000+10 - 49 employeesSan Francisco, CAALTERPEX is an Architectural Design company. The team offers Architectural Design and Interior Design and is located in San Francisco, California.Read More
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18Undisclosed2 - 9 employeesLos Angeles, CABallentine Architects Studio, an Architectural Design company, is headquartered in Los Angeles, California. They specialize in Architectural Design and Interior Design and were launched in 2015.Read More
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19Undisclosed2 - 9 employeesOakland, CAAdapt Dwellings is an Architectural Design company. They were established in 2020 and specialize in Architectural Design.Read More
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20$10,000+10 - 49 employeesSan Diego, CAADU Geeks , a small Architectural Design company, is based in San Diego, California. The team offers Architectural Design.Read More
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21$5,000+50 - 249 employeesLaguna Beach, CALaunched in 1999, PicsMatic, a midsize Architectural Design company, is in Laguna Beach, California. Their team provides Architectural Design and Product Design.Read More
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22Undisclosed10,000+ employeesSan Jose, CALakota Design Group is an Architectural Design company launched in 1975. Their team specializes in Architectural Design.Read More
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23Undisclosed10 - 49 employeesSan Diego, CAArchitects Local, a small Architectural Design company, is headquartered in San Diego, California. The team provides Architectural Design.Read More
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24Undisclosed50 - 249 employeesLos Angeles, CAIn Los Angeles, California, 3D modelling Services is a midsize Architectural Design company. Their services include Architectural Design.Read More
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25Undisclosed250 - 999 employeesOntario, CALaunched in 2003, Smith Landscape Masonry is a midsize Ontario, California-based Architectural Design company. Their services include Architectural Design.Read More
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26Undisclosed50 - 249 employeesUpland, CAVanGo Home Decor is an Architectural Design and Interior Design company. They were founded in 2023, and their services include Architectural Design and Interior Design.Read More
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27$1,000+10 - 49 employeesDaly City, CAGlscapes Inc. Is an Architectural Design company. They focus on Architectural Design and were founded in 2012. The firm is based in Daly City, California.Read More
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28$100,000+10 - 49 employeesPasadena, CAJ Bullock and Associates is an Architectural Design company. Headquartered in Pasadena, California, the company focuses on Architectural Design and Interior Design.Read More
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29Undisclosed50 - 249 employeesIrvine, CARead More
Located in Irvine, California, The Muller Company is a commercial brokerage services company. The midsize firm was founded in 1979. Their services include commercial brokerage services, architectural design, and accounting.
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30Undisclosed2 - 9 employeesSan Francisco, CAEstablished in 1990, Thayer Hopkins Architects is an Architectural Design company. Located in San Francisco, California, the team provides Architectural Design.Read More
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