Top 100 Web Development Companies in California

Seamgen is a San Diego, Calif.-based development firm established in 2008. It has a team of about 50 that does mobile app development, web development, UI/UX design, and custom software development. 

Act Bold Media Group is a full-service digital marketing agency based in Santa Monica, California. With approximately 10 employees, they primarily assist clients with web development, SEO, and PPC. The client valued Act Bold Media's proactive attitude, commitment to staying on budget, and ability to customize their services.

VinnCorp is an application development firm based in Elk Grove, California; Hayward, California and San Francisco, California. Founded in 2019, the small team specializes in mobile app development, custom software development, branding, IT staff augmentation, and more.

D.Workz Interactive is a full-service design and development company located in San Francisco, CA. Since its founding over 10 years ago, D.Workz Interactive and its team of nearly 50 employees have specialized in UX/UI design, web design, web development, and mobile app development. They serve a range of clients in the healthcare, financial services, education, and transportation industries.

Headquartered in San Diego, Fifty & Fifty is a digital agency that was founded in 2009. Their team includes 18 employees. Fifty & Fifty specializes in web design, SEO, digital strategy, advertising, and branding. Most of their clients are non-profits. 

Established in 2000, Marker Seven is a full-service digital agency. They employ a team of 20 people across multiple offices in San Francisco, Richmond, Va. and Victoria, Canada. Their range of services includes web design, web development, UX/UI design, e-commerce development, mobile app development.

Website development firm Alliance Innovations is located in San Diego, California. The small agency was founded in 2019. Their team focuses on web development, digital strategy, custom software development, mobile app development, and more.

UniWebb Software is a mobile and web development company based in Elk Grove, CA and was founded in 2011. UniWebb  has a small team of fewer than five employees that focuses on providing mobile app development, web development, and custom software development services, exclusively to small businesses.

Ayatas Technologies is a website development company based in Sacramento, California. The small company was established in 1990. Their services include web development, e-commerce development, and web design.

Venture Aviator is a software development company headquartered in New York, NY with other offices in San Francisco and Santa Monica, CA. The team of nearly 20 employees is fluent in blockchain, software, mobile app, and web development.

Company A is a custom application development company based in Irvine, Calif., with offices in Plano, Texas, and Novi Sad, Serbia. The company, founded in 2015, has a team of more than ten that provides cloud consulting & SI, custom software development, web development, mobile app development, and enterprise app modernization services. Company A serves small and larger-sized companies in various industries, including IT, financial services, and health care & medical.

E. Curtis Designs is a web development company founded in 2002 and located in Sacramento, Calif. With a team of fewer than 10 employees, they offer web development, SEO, social media marketing, web design, and graphic design services. Their clientele includes small businesses in the business services, financial services, and health care and medical industries.

Web design company Word of Web was launched in 2019. The agency specializes in web design, ux/ui design, branding, e-commerce development, and more and has a small team.

Exygy is a digital strategy and development company founded in 2007. Located in San Francisco, CA, Exygy’s team of about 25 employees specialize in web design, web development, and mobile app development for Android, iOS, and hybrid platforms. Other services include UI/UX design, branding, software development, and IT consulting.

EnlightWorks is a web design agency that works specifically with small businesses in the business services, nonprofit, and government industries. Founded in 2016, the Benicia, California-based firm is comprised of 3 team members.

Metal Toad is an AWS consulting partner based in Beverly Hills, Calif., with offices in Portland, Ore. and Pasadena, Calif. The company, founded in 2003, has more than 25 employees who provide, among others, cloud consulting & SI, IT managed services, and custom software development services to the media & entertainment, manufacturing, and automotive industries.

Minor Change is a small branding company. The Vacaville, California-based agency was established in 2023. Their services include branding.

Headquartered in the Bay Area of CA with second and third offices in Liverpool, UK, and Ontario, Canada, Kiosk is a full-service marketing agency. Founded in 2004, they offer data and analytics and performance marketing services, as well as creative work such as design, branding, and video production.

Artsy Geek is a boutique web and marketing agency headquartered in Oakland, California with another office in Seattle. The team specializes in integrated marketing, web development, graphic design, internet marketing and social media. Comprised of less than 10 employees, Artsy Geek is a team of skilled designers, marketers, and coders. Founded in 2011, it collaborates with clients to build and grow their brand identities for a strengthened online presence.

Headquartered in Santa Clara, California, Second Crew is a web design agency. The small team offers web design, conversion optimization, and pay per click. The company was established in 2014.

Revolution Media Group is a website design and development company that was founded in 2004. Headquartered in San Francisco, CA, Revolution Media Group's small team of fewer than 10 employees provides web development, web design, and branding services.

Pixel Jar is a development agency based in Tustin, Calif. They were founded in 2004 and employ a team of 4. The company specializes in web and e-commerce development, web and UX/UI design, branding, and more.

Pastilla Inc. is a creative and marketing agency based in Pasadena and Irvine, Calif. and Bratislava, Slovakia. Founded in 2004, they have 15 employees experienced in elevating brands through strategic creative and marketing practices. They provide content, SEO, social media solutions, mobile design, and film and animation to small, midmarket, and large companies.

Ninjas Code is a web and mobile development company based in Islamabad, Pakistan. Founded in 2019, their team of six developers specializes in Node.js and React Native. They're also proficient in JavaScript.

Vermillion Tech is a social media marketing agency and website development company. Their small team is headquartered in Surat, India. The firm specializes in social media marketing and web development. The firm was established in 2023.

Capitol Tech Solutions is a digital agency in Sacramento, Calif. and Houston. Founded in 2010, they have about 25 employees that serve mostly midmarket and small-business clients in the education, consumer product, and business sectors. Services include digital strategy, SEO, and web design.

This California-based company specializes in customer acquisition and digital marketing. The 250+ team is ever-growing and passionate about delivering digital campaigns that their clients can be proud of.

Collective42 is a web design company. Founded in 2017, the agency is based in Encinitas, California. The small team provides Web Design, Search Engine Optimization, Web Development, Pay Per Click, and more.

Envisager Studio was founded in 1998 and is headquartered in San Diego. Their small team of less than 10 provides web design, content marketing, and web development services. 

Webloo is a digital strategy company launched in 2016. They are in Newport Beach, California and have a small team. The firm specializes in digital strategy, web design, ux/ui design, custom software development, and more.