California's interior design companies focus on creating captivating spaces that enhance functionality and aesthetics. These firms range from small, specialized studios to large global firms, offering services that include interior architecture, custom furnishings, and sustainable designs. As environmental concerns rise, many companies are shifting towards eco-friendly materials and practices, integrating smart technology for improved living experiences. The California market is becoming increasingly competitive, with firms adapting to evolving consumer preferences for personalized design solutions. Innovations in design, including modular and flexible spaces, are also shaping the future of the industry, aligning with contemporary lifestyle trends.


The companies listed represent a broad spectrum of the interior design industry in California. Ranging from established giants with thousands of employees like Gensler to boutique firms like Amber Interior Design, these firms all possess unique expertise. Founded between 1945 and 2015, they have various areas of specialization including residential, commercial, and hospitality design. Locations span major cities such as San Francisco and Los Angeles, with most companies emphasizing collaboration and innovation in their projects.


Discover the premier interior design companies making waves in California.


Top 20 Interior Design Companies in California


1. IA Interior Architects

  • Website: interiorarchitects.com
  • Ownership type: Private
  • Headquarters: San Francisco, California, United States (USA)
  • Employee distribution: United States (USA) 88%, United Kingdom (UK) 5%, India 3%, Other 3%
  • Founded year: 1984
  • Headcount: 501-1000
  • LinkedIn: ia-interior-architects

IA Interior Architects is a private architecture and design firm based in San Francisco, California, with a workforce of nearly 1,000 employees. Founded in 1984, the company specializes in interior architecture, offering comprehensive design services tailored to various sectors such as workplaces, hospitality, retail, and government. Their approach emphasizes creating human-centric environments that not only reflect the brand values of their clients but also enhance user experience. IA Interior Architects is committed to sustainability, actively engaging in community initiatives through their philanthropic arm, IA Reach. The firm has also established a strong presence in the industry, contributing to thought leadership through research, webinars, and publications. Their projects often showcase innovative design solutions that address complex challenges while promoting well-being and inclusivity. With a global footprint and a focus on collaboration, IA Interior Architects continues to influence the field of interior design.


2. Gensler

  • Website: gensler.com
  • Ownership type: Private
  • Headquarters: San Francisco, California, United States (USA)
  • Employee distribution: United States (USA) 70%, United Kingdom (UK) 6%, China 4%, Other 20%
  • Founded year: 1965
  • Headcount: 5001-10000
  • LinkedIn: gensler

Gensler is a global design and architecture firm based in San Francisco, California, founded in 1965. With a workforce of approximately 7,480 employees, Gensler specializes in creating innovative spaces across various sectors, including healthcare, education, and corporate environments. The firm offers a comprehensive range of services, including architecture, interior design, and sustainability consulting. Gensler operates through a collaborative model, leveraging its expertise to tackle complex design challenges. Their projects often reflect a commitment to sustainability and social equity, aiming to create spaces that enhance the human experience. Gensler's influence extends beyond traditional design, as they engage in research and insights that shape the future of design practices. Their work has been recognized in various media outlets, highlighting their contributions to notable projects and trends in the industry.


3. Tucker & Marks

  • Website: tuckerandmarks.com
  • Ownership type: Private
  • Headquarters: San Francisco, California, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1987
  • Headcount: 11-50
  • LinkedIn: tucker-and-marks-inc.

Tucker & Marks is a private interior design and architecture firm based in San Francisco, California. Established in 1987, the company specializes in crafting personalized living spaces that reflect the unique tastes and lifestyles of homeowners. Their services range from interior design and architectural consultation to project management, ensuring a comprehensive approach to residential design. The firm has a notable portfolio that includes a variety of projects, such as urban apartments and coastal residences, each characterized by a thoughtful integration of art, antiques, and modern design elements. Tucker & Marks has also been recognized in the industry, with accolades such as the 2023 Albert Hadley Lifetime Achievement Award awarded to Suzanne Tucker, underscoring their commitment to excellence in design.


4. Rapt Studio

  • Website: raptstudio.com
  • Ownership type: Family Owned
  • Headquarters: San Francisco, California, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1985
  • Headcount: 11-50
  • LinkedIn: raptstudio

Rapt Studio is a family-owned design studio based in San Francisco, California, with additional locations in Los Angeles and New York. Established in 1985, the firm specializes in architecture, interior design, and branding services. Rapt Studio is dedicated to crafting emotionally compelling environments that resonate with users and enhance brand experiences. Their offerings include interior design, event design, environmental graphics, and custom installations, catering to a variety of clients across industries such as technology and hospitality. The studio has worked on high-profile projects, including the headquarters for companies like Tinder and Dropbox, demonstrating their capability to create innovative and functional spaces. Rapt Studio's approach emphasizes the importance of storytelling in design, helping brands connect authentically with their audiences.


5. Ktgy

  • Website: ktgy.com
  • Ownership type: Private
  • Headquarters: Irvine, California, United States (USA)
  • Employee distribution: United States (USA) 99%
  • Founded year: 1991
  • Headcount: 201-500
  • LinkedIn: ktgy-group-inc-

KTGY is an architecture and design consultancy based in Irvine, California, founded in 1991. The firm specializes in creating innovative and functional spaces across various sectors, including multifamily, hospitality, and urban design. With a workforce of over 500 employees, KTGY serves developers and property owners, providing tailored expertise in design and planning. Their service lines include architecture, interior design, branded environments, and urban design, allowing them to address a wide range of client needs. KTGY has been recognized in industry rankings, such as #29 in the Architectural Record Top 300 Architecture Firms and #19 on Interior Design’s Rising Giants list. The firm emphasizes collaboration and creativity, aiming to transform environments through thoughtful design. Their commitment to sustainability and community engagement further underscores their role in the industry, making them a significant player in the field of design.


6. Studio Saxe

  • Website: studiosaxe.com
  • Ownership type: Private
  • Headquarters: San Jose, California, United States (USA)
  • Employee distribution: Costa Rica 100%
  • Founded year: 2004
  • Headcount: 11-50
  • LinkedIn: studio-saxe

Studio Saxe, founded in 2004 by Benjamin Garcia Saxe, is an architecture firm based in San Jose, Costa Rica, with a focus on sustainable contemporary luxury architecture. The firm has built a reputation for its innovative designs that harmonize with the natural environment, emphasizing the use of local materials and craftsmanship. Studio Saxe offers a range of services, including architectural and interior design, catering to clients who seek unique and environmentally conscious living spaces. Their portfolio includes a variety of projects, from private residences to hotels, all reflecting a deep understanding of the Costa Rican landscape and culture. The firm has garnered numerous awards and recognition in the architecture community, showcasing their commitment to quality and sustainability. Studio Saxe's work has been featured in prominent publications, further solidifying their position in the industry as a notable player in both architecture and interior design.


7. Amber Interior Design


Amber Interior Design, founded by Amber Lewis in 2013, is a full-service interior design firm located in Calabasas, California. The company specializes in transforming residential and commercial spaces through a holistic approach to design. Their services include interior design, interior architecture, and custom furniture design. Amber Interiors is known for its California-inspired aesthetic, which blends eclectic and vintage elements to create inviting and stylish environments. The firm has worked on a variety of projects, from high-end renovations to new builds, and collaborates closely with architects and builders to ensure a seamless design process. In addition to their design services, Amber Interiors operates a retail outlet, Shoppe Amber Interiors, which offers curated home decor products. Amber Lewis has also gained recognition as an author, having published two popular books on interior design, which further enhances the firm's visibility and credibility in the industry.


8. Bamo

  • Website: bamo.com
  • Ownership type: Private
  • Headquarters: San Francisco, California, United States (USA)
  • Founded year: 1991
  • Headcount: 11-50
  • LinkedIn: bamo

Bamo is an interior design and architecture firm based in San Francisco, California, with a secondary office in Providence, Rhode Island. Established in 1991, the company specializes in crafting captivating environments tailored for hospitality, residential, and corporate clients. Bamo offers a comprehensive range of services, including interior architecture and custom furniture design, emphasizing a collaborative approach to meet client expectations. Their projects reflect a commitment to quality and creativity, with a portfolio that includes renowned establishments like the Waldorf Astoria Miami and the Ritz-Carlton in Chicago. Bamo has received numerous accolades, including awards for their innovative designs and contributions to the hospitality sector. Their work has been featured in various prestigious publications, highlighting their influence and standing in the interior design industry.


9. McClean Design

  • Website: mccleandesign.com
  • Ownership type: Private
  • Headquarters: Orange, California, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 2000
  • Headcount: 11-50
  • LinkedIn: mcclean-design

McClean Design, founded in 2000 and based in Orange, California, is an architectural design firm that specializes in contemporary residential design. With a team of 19 employees, the firm has carved out a niche in creating luxurious homes that connect clients with their natural surroundings. Their projects reflect a modern living ethos, characterized by extensive use of glazing systems to maximize views and create light-filled spaces. McClean Design is committed to environmentally sustainable practices, ensuring that their designs not only meet aesthetic standards but also adhere to ecological considerations. The firm works with both homeowners and developers, navigating complex approval processes with ease. Their portfolio includes a range of high-profile projects across North America and beyond, showcasing their ability to deliver innovative design solutions that resonate with clients' aspirations.


10. Kendall Wilkinson Design, LLC


Kendall Wilkinson Design, LLC is a full-service interior design firm based in San Francisco, California, with a secondary office in Los Angeles. Founded in 1992, the company specializes in luxury residential and commercial spaces, offering tailored design services that reflect the unique styles and needs of their clients. With a team of skilled designers and project managers, the firm emphasizes collaboration with architects, builders, and landscape designers to ensure that each project is executed with precision and creativity. Their portfolio includes a variety of projects, from upscale residences to commercial spaces, showcasing their ability to create functional and aesthetically pleasing environments. Kendall Wilkinson, the founder, is known for her artistic vision and has gained recognition in various publications for her work. The firm also engages in product design, notably through its textile collections with Fabricut, further demonstrating its commitment to quality and innovation in the interior design industry.


11. SFA Design

  • Website: sfadesign.com
  • Ownership type: Private
  • Headquarters: Los Angeles, California, United States (USA)
  • Employee distribution: United States (USA) 61%, Uzbekistan 20%, India 20%
  • Founded year: 1996
  • Headcount: 11-50
  • LinkedIn: sfa-design

SFA Design, based in Los Angeles, California, is a private interior design firm that specializes in luxury design for both hospitality and residential projects. Founded in 1996, the company has built a reputation for creating sophisticated interiors that reflect the unique styles of their high-profile clients, which include prestigious hotel brands and affluent homeowners. With a team of 11-50 employees, SFA Design emphasizes a collaborative approach to design, ensuring that each project is executed with meticulous attention to detail from start to finish. Their portfolio features notable projects such as the renovation of the Viceroy L’Ermitage in Beverly Hills and the design of luxury villas at Miraval Resort & Spa in Tucson, Arizona. The firm is also recognized for its involvement in various media outlets, further solidifying its presence in the interior design industry.


12. John Lum Architecture

  • Website: johnlumarchitecture.com
  • Ownership type: Private
  • Headquarters: San Francisco, California, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1994
  • Headcount: 11-50
  • LinkedIn: john-lum-architecture

John Lum Architecture is a San Francisco-based architecture firm founded in 1994, known for its innovative approach to architectural and interior design services. The firm has completed over 850 projects, ranging from residential remodels to commercial interiors and retail environments. With a strong emphasis on sustainability and modern livability, John Lum Architecture tailors each project to reflect the unique tastes and needs of its clients. The firm operates from a converted laundry machine factory in the Mission District, which adds to its creative atmosphere. Their work is characterized by a playful use of materials and natural light, aiming to create spaces that resonate with the California lifestyle. The team includes experienced professionals who collaborate closely to ensure that each project is not only functional but also infused with character and warmth.


13. Studio VARA

  • Website: studiovara.com
  • Ownership type: Private
  • Headquarters: San Francisco, California, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 2013
  • Headcount: 11-50
  • LinkedIn: studio-vara

Studio VARA is an architecture and design firm based in San Francisco, California, founded in 2013. The firm specializes in residential, multi-family, and workplace projects, with a strong emphasis on sustainable and innovative design. Studio VARA is committed to enhancing the built environment through collaboration with clients, builders, and developers. The firm is recognized as a Certified Green Business and is a minority woman-owned enterprise, reflecting its commitment to social responsibility and community engagement. Their portfolio includes a variety of projects that showcase their expertise in architecture, landscape, and interior design. Studio VARA has received accolades for its work, including the 2015 AIA SF Architecture Merit Award for the Redwood Highway project, which transformed a commercial building into a light-filled office space. The firm’s approach is characterized by a focus on materiality, craftsmanship, and a process-oriented delivery model that fosters creativity and collaboration among team members and clients alike.


14. Studio Schicketanz

  • Website: studioschicketanz.com
  • Ownership type: Private
  • Headquarters: Carmel-By-The-Sea, California, United States (USA)
  • Employee distribution: United States (USA) 65%, India 35%
  • Founded year: 2015
  • Headcount: 11-50
  • LinkedIn: studioschicketanz

Studio Schicketanz is an architecture and interior design firm based in Carmel-By-The-Sea, California, founded in 2015 by Mary Ann Gabriele Schicketanz. The firm is known for its focus on sustainability and its ability to create spaces that harmonize with their natural surroundings. With a team that includes several LEED-accredited professionals, Studio Schicketanz emphasizes energy efficiency and health in their projects. Their services range from architecture and interior design to renovation and land use planning, catering to both individual clients and businesses. The firm has completed numerous projects across the Western United States and has received several design awards, showcasing their commitment to quality and innovation in the industry.


15. WATG and Wimberly Interiors

  • Website: watg.com
  • Ownership type: Private
  • Headquarters: Tustin, California, United States (USA)
  • Employee distribution: United States (USA) 44%, United Kingdom (UK) 35%, Singapore 17%, Other 4%
  • Founded year: 1945
  • Headcount: 201-500
  • LinkedIn: watg

WATG and Wimberly Interiors, founded in 1945, is a private architectural firm based in Tustin, California. They specialize in luxury hospitality design, offering a wide range of services that include advisory, master planning, architecture, landscape architecture, and interior design. With a strong emphasis on creating culturally relevant and innovative design solutions, they cater primarily to clients in the hospitality and real estate sectors. Their portfolio features a variety of projects across the globe, from luxury resorts to urban developments, reflecting their commitment to quality and client satisfaction. The firm operates multiple offices worldwide, allowing them to blend local insights with their extensive design expertise. WATG and Wimberly Interiors have a history of pioneering hospitality design, and their recent acquisition of SOSH Architects further enhances their capabilities in the gaming and entertainment sectors, solidifying their position in the industry.


16. Montalba Architects

  • Website: montalbaarchitects.com
  • Ownership type: Private
  • Headquarters: Santa Monica, California, United States (USA)
  • Employee distribution: United States (USA) 94%, Switzerland 6%
  • Founded year: 2004
  • Headcount: 51-200
  • LinkedIn: montalba-architects

Montalba Architects, founded in 2004 by David Montalba, is a private architecture firm based in Santa Monica, California, with additional offices in New York and Lausanne. The firm specializes in innovative and contextually relevant designs across multiple sectors, including residential, commercial, and hospitality. Montalba Architects is known for its collaborative approach, emphasizing communication throughout the design process. Their projects often reflect a strong connection to their surroundings, utilizing natural light and honest materials to enhance the experience of space. The firm has received recognition for its work, including the 2024 Architizer A+ Award for Best Large Firm. Montalba Architects also provides comprehensive services that extend beyond architecture to include interior design, branding, and merchandising, showcasing their ability to create cohesive environments that meet client needs.


17. AB design studio, inc.

  • Website: abdesignstudioinc.com
  • Ownership type: Private
  • Headquarters: Santa Barbara, California, United States (USA)
  • Employee distribution: United States (USA) 82%, Pakistan 9%, India 9%
  • Founded year: 2005
  • Headcount: 11-50
  • LinkedIn: ab-design-studio-inc.

AB design studio, inc. is a private design studio located in Santa Barbara, California, established in 2005. The firm specializes in architecture, interior design, and urban planning, offering a comprehensive range of services that cater to residential, hospitality, and commercial sectors. With a team of 34 employees, the studio prides itself on its innovative design solutions that blend functionality with aesthetic appeal. Their portfolio features a variety of projects, including award-winning designs like the Quarry House, which received accolades at the Gold Nugget Awards. The studio's approach emphasizes collaboration and creativity, aiming to push the boundaries of design while addressing the unique needs of their clients. They have worked with both businesses and individual consumers, demonstrating their versatility and commitment to enhancing spaces through thoughtful design.


18. Marmol Radziner

  • Website: marmol-radziner.com
  • Ownership type: Private
  • Headquarters: Los Angeles, California, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1989
  • Headcount: 51-200
  • LinkedIn: marmol-radziner

Marmol Radziner, founded in 1989 and based in Los Angeles, California, is a private architecture and construction firm that specializes in providing a full range of design and building services. The company offers architecture, construction, landscape design, and interior design, along with custom furniture fabrication. With a team of architects, interior designers, landscape designers, and skilled craftsmen, Marmol Radziner is known for its innovative design solutions and precision in construction. The firm has worked on various projects, catering to both residential and commercial clients, and has developed a reputation for high-quality, customized environments. Their in-house capabilities allow them to maintain control over the design and construction process, which can lead to more cohesive and successful project outcomes. Marmol Radziner employs around 136 people and has been recognized with several awards for their work in architecture and design.


19. Feldman Architecture

  • Website: feldmanarchitecture.com
  • Ownership type: Private
  • Headquarters: San Francisco, California, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 2003
  • Headcount: 11-50
  • LinkedIn: feldman-architecture

Feldman Architecture is a San Francisco-based architecture firm founded in 2003, specializing in residential and commercial design. The firm is known for its commitment to sustainability and creating spaces that are sensitive to their environment. They prioritize collaboration and deep listening in their design process, ensuring that each project reflects the unique needs of their clients. Feldman Architecture has a robust portfolio that includes a variety of projects, from private residences to commercial spaces, and they provide comprehensive interior design services. Their work has been recognized in various publications, and they have received accolades for their innovative designs. The firm is also dedicated to community engagement, contributing time and resources to pro bono projects that benefit underserved populations. With a team of 11-50 employees, Feldman Architecture continues to make a significant impact in the architecture and design industry.


20. ID Studios Inc.

  • Website: idstudiosinc.com
  • Ownership type: Private
  • Headquarters: Solana Beach, California, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 2005
  • Headcount: 11-50
  • LinkedIn: id-studios-inc

ID Studios Inc., based in Solana Beach, California, is an interior design and architecture firm that specializes in creating human-centered design solutions. Since its inception in 2005, the company has focused on enhancing environments through strategic planning and meticulous execution of design projects. ID Studios serves a variety of sectors, including workplace, academic, and life sciences, showcasing its ability to adapt to different client needs. The firm is also committed to sustainable design practices, prioritizing energy efficiency and wellness in the spaces they create. With a team of 23 employees, ID Studios has built a reputation for its collaborative approach and attention to detail, which has led to successful partnerships with numerous clients. Their work has garnered awards and recognition, further solidifying their position in the interior design industry.



Interior Design Insights: Key Companies in California


CompanyHeadquarterSizeFoundedOwnership
IA Interior ArchitectsSan Francisco, California, United States (USA)501-10001984Private
GenslerSan Francisco, California, United States (USA)5001-100001965Private
Tucker & MarksSan Francisco, California, United States (USA)11-501987Private
Rapt StudioSan Francisco, California, United States (USA)11-501985Family Owned
KtgyIrvine, California, United States (USA)201-5001991Private
Studio SaxeSan Jose, California, United States (USA)11-502004Private
Amber Interior DesignCalabasas, California, United States (USA)11-502013Private
BamoSan Francisco, California, United States (USA)11-501991Private
McClean DesignOrange, California, United States (USA)11-502000Private
Kendall Wilkinson Design, LLCSan Francisco, California, United States (USA)11-501992Private
SFA DesignLos Angeles, California, United States (USA)11-501996Private
John Lum ArchitectureSan Francisco, California, United States (USA)11-501994Private
Studio VARASan Francisco, California, United States (USA)11-502013Private
Studio SchicketanzCarmel-By-The-Sea, California, United States (USA)11-502015Private
WATG and Wimberly InteriorsTustin, California, United States (USA)201-5001945Private
Montalba ArchitectsSanta Monica, California, United States (USA)51-2002004Private
AB design studio, inc.Santa Barbara, California, United States (USA)11-502005Private
Marmol RadzinerLos Angeles, California, United States (USA)51-2001989Private
Feldman ArchitectureSan Francisco, California, United States (USA)11-502003Private
ID Studios Inc.Solana Beach, California, United States (USA)11-502005Private


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