Top 100 Software Development Companies in California
The Best of October 2026Looking for a top software developer in California?
As the use of mobile and web apps rise, your business’s digital presence becomes even more important. The biggest challenge facing organizations is how they can keep up in the digital world. The best way is to continuously develop up-to-date software that allows your organization to maintain an impactful digital presence.
To assist you in your search for a partner, we’ve compiled this list of the top software development companies in California. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best California Software Developers
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$10,000+10 - 49 employeesIrvine, CAKingsmen Digital Ventures, a custom software development company, is in Irvine, California. Established in 2017, the small team offers Custom Software Development, Mobile App Development, UX/UI Design, Web Development, and more.Read More
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$10,000+10 - 49 employeesMedina, WAFlower Press Interactive is a custom software development firm. The Medina, Washington-based company was established in 2001. The small team focuses on Custom Software Development, UX/UI Design, Mobile App Development, Web Design, and more.Read More
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121$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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122$1,000+10 - 49 employeesRoseville, CARead More
I-Tul Design & Software, Inc. is a software design and development company that was started in 1999. The 11-person team operates out of Roseville, Calif. where they provide custom software development as well as web design and development services to small and mid-sized businesses.
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Corp2000Industries
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123$10,000+10 - 49 employeesSan Francisco, CARead More
Custom software development company Singula team was founded in 2022. The small team specializes in custom software development, web development, CRM consulting and SI, ERP consulting and SI, and more. The firm is in San Francisco, California.
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124$25,000+10 - 49 employeesOakland, CARead More
Founded in 1999, LION Interactive is a full-service digital agency based in Berkeley, Calif. They are a smaller agency with just under 20 employees. LION's practice focuses on user experience and interface (UI/UX) design, web design, and custom software and web app development. They also develop applications for all relevant mobile and e-commerce platforms.
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Urban Land InstituteIndustries
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125$10,000+2 - 9 employeesFremont, CAZeebrix is a Fremont, California-based software development firm. They provide Custom Software Development, Artificial Intelligence, Mobile App Development, UX/UI Design, and more and were established in 2023.Read More
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126$5,000+10 - 49 employeesGlendale, CASmall custom software development company Skillian, is headquartered in Yerevan, Armenia and Glendale, California. Launched in 2020, the team specializes in Custom Software Development, cloud consulting & SI, and Web Development.Read More
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127$5,000+10 - 49 employeesMountain View, CARead More
YouTeam is a marketplace for hiring remote software development contractors. Founded in 2014, YouTeam is headquartered in London, with an additional office in Lviv, Ukraine. YouTeam's staff of around 20 specializes in web development, custom software development, and mobile app development, primarily for enterprise and midmarket clients in business services and education.
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PwCIndustries
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128$10,000+50 - 249 employeesSan Diego, CARead More
Based in San Diego, Calif., PINT, Inc. is a full-service development firm. Founded in 1994, they have about 45 employees that specialize in web development, web design, custom software development, and UX/UI design. The firm mainly works with clients in the healthcare field.
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CooperVisionIndustries
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129$25,000+2 - 9 employeesRedlands, CAFounded in 2016, Hounder is a branding agency. The small Redlands, California-based team focuses on Branding, Search Engine Optimization, Pay Per Click, UX/UI Design, and more.Read More
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130$25,000+10 - 49 employeesSan Francisco, CARead More
Yeti LLC is a software development and design company founded in 2010. They have 20 employees, all of whom work out of an office in San Francisco. Yeti's practice is extensive for a firm of its size; they offer custom software development, UI/UX design, mobile apps, and IoT development.
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GoogleIndustries
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131$5,000+2 - 9 employeesTustin, CARead More
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.
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Dallas MavericksIndustries
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132$25,000+50 - 249 employeesGranite Bay, CARead More
FullStack Labs is a software consultancy headquartered in Granite Bay, CA with satellite offices in Arlington, VA, and Barranquilla, Colombia. With over 40 employees at hand, FullStack provides web development, custom software development, and mobile app development services to enterprises and startups alike.
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Uber -
133$10,000+2 - 9 employeesPasadena, CARead More
Interactivism is a digital product design and development company founded in 2013. Based in Pasadena, Calif., the team of 8 specializes in UX/UI design, custom software development, and AR/VR development.
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From early stage to fortune 500, we are proud of the company we keep.Industries
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134$50,000+10 - 49 employeesSan Francisco, CARead More
Infuse is a software development company based in San Francisco. The company, founded in 2014, has a team of around 20 that provides custom software development, mobile app development, and UX/UI design services. Infuse serves enterprise and smaller-sized companies in various industries that include financial services, medical, and IT.
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Ready RespondersIndustries
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135$25,000+10 - 49 employeesEncinitas, CAMoves the Needle is a Product Design company founded in 2014. The small Encinitas, California-based team provides Product Design, Custom Software Development, AI Consulting, Corporate Training & Coaching, and more.Read More
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Nike Roche Thomsons Reuters P & GIndustries
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136$5,000+50 - 249 employeesIrvine, CARead More
TekHqs ( Tek HeadQuarters ) is a custom software development company founded in 2010 with more than 50 members. They provide custom software development, CRM consulting, and ERP consulting solutions from their office in Irvine, Calif. They work primarily with small firms.
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YamahaIndustries
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137$100,000+10 - 49 employeesCitrus Heights, CARead More
GBMF Tech, a software development firm, was established in 2019. Their small team is headquartered in London, United Kingdom; Citrus Heights, California and Chișinău, Moldova. The firm provides custom software development, web development, mobile app development, and e-commerce development.
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Freight CrewIndustries
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138$5,000+2 - 9 employeesSan Jose, CARead More
CodeFutures is a small software development company. Based in Broomfield, Colorado and San Jose, California, the agency was launched in 2001. Their services include custom software development, cloud consulting & SI, IT staff augmentation, and other IT consulting and SI.
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139Undisclosed10 - 49 employeesLos Angeles, CARead More
Eachbase is a digital agency that operates out of California. Their main services span branding, SEO, and web development.
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Nino's Pizza AECO Starfish Polo TMSIndustries
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140Undisclosed50 - 249 employeesSanta Monica, CARead More
Nextware Technologies is a development agency based in Santa Monica, Calif., with another office in Valencia, Spain. Since 2006, the agency and its team of fewer than 10 have provided expertise in web, custom software, and mobile app development, web design, UX/UI design, and IT managed services.
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LandorIndustries
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141$50,000+10 - 49 employeesSan Marcos, CATrailhead Technology Partners, a custom software development firm, is located in Jenison, Michigan; San Marcos, California and Gastonia, North Carolina. The small team offers Custom Software Development, Enterprise App Modernization, Artificial Intelligence, Mobile App Development, and more and was launched in 2016.Read More
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142$10,000+10 - 49 employeesPleasanton, CARead More
Cygnis Media is a development agency is headquartered in Pleasanton, Calif. Since 2010, their team of 45 has been specializing in web design and development, UX/UI design, mobile app development, and more. Cygnis Media works with clients in various industries including arts & entertainment and business services.
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MIT NFL Network Oreo SamsungIndustries
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143$10,000+2 - 9 employeesSacramento, CAAi-lab is a website development firm based in Sacramento, California and San Francisco, California. The small agency was founded in 2024. Their team provides Web Development, Mobile App Development, Generative AI, Artificial Intelligence, and more.Read More
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144$50,000+50 - 249 employeesSanta Monica, CATulaCo is a software development company. Located in Santa Monica, California, the firm offers Custom Software Development and Web Development.Read More
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CREXi, Imgur, Gracenote, Casting Networks, StyleRow, Tradeswell, Plume, Bridg, EXOS, Biqmind, Aircam, 2GTHR, Ronati, Zitti, Convoz, Wizard, Happs, BAI connect, Trust, Studykik, VINData, MindmixerIndustries
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145$10,000+10 - 49 employeesSacramento, CARead More
Prestige Development Group is an IT staff augmentation company based in Sacramento, California. The small firm was launched in 2016. Their team specializes in IT staff augmentation, custom software development, mobile app development, and blockchain.
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Capital OneIndustries
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146$5,000+50 - 249 employeesSan Francisco, CAEstablished in 2009, TechnoBrains Business Solutions LLP is a midsize artificial intelligence firm headquartered in Ahmedabad, India and San Francisco, California. Their services include Artificial Intelligence, Custom Software Development, Web Development, Mobile App Development, and more.Read More
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147$10,000+50 - 249 employeesLos Angeles, CARead More
In Los Angeles, California; Houston, Texas and Santa Rosa, California, Coding Pixel is a small custom software development firm. They focus on custom software development, blockchain, mobile app development, web design, and more and were established in 2012.
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148$50,000+250 - 999 employeesLaguna Beach, CAMidsize software development company Datamam, is headquartered in Laguna Beach, California. Founded in 2006, the team focuses on Custom Software Development, Market Research, BI & big data consulting & SI, and Artificial Intelligence.Read More
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149$5,000+1,000 - 9,999 employeesSan Jose, CARead More
ExpertsFromIndia is a development company based in San Jose, Calif. They were founded in 2003 and have a team of around 800 employees. They primarily provide custom software development and SEO.
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eBayIndustries
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150$50,000+10 - 49 employeesRocklin, CARead More
Grey Sky Media is a web and technology development company based in Rocklin, California. Founded in 1999, their team of fewer than 10 employees provides services for small and mid-market businesses. They specialize in web development, custom software development, UX/UI design, and enterprise app modernization.
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