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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151$5,000+50 - 249 employeesSan Francisco, CARead More
Based in San Francisco, California, AllCode is a cloud consulting & SI company. The agency specializes in cloud consulting & SI, Custom Software Development, Web Development, UX/UI Design, and more and is midsize.The agency was founded in 2015.
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TwilioIndustries
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152$25,000+2 - 9 employeesSanta Monica, CARead More
Right Balance is a software development company based in Santa Monica, Calif. with offices in Mexico City and Moscow. The company, founded in 2015, has a team of less than ten that provides custom software development, web development, and mobile app development services. Right Balance serves mid-market and other-sized companies in the financial services, IT, and transportation industries.
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TalaIndustries
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153$10,000+10 - 49 employeesSan Francisco, CAUX design company Madhupa.com | San Francisco Based was established in 2021. The firm offers UX/UI Design, Custom Software Development, Web Development, Mobile App Development, and more and has a small team.Read More
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154$1,000+10 - 49 employeesRoseville, CAOK Technology is an IT strategy consulting and IT staff augmentation company. Their small team is based in. The agency provides IT strategy consulting and IT staff augmentation. The agency was launched in 2021.Read More
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155$10,000+2 - 9 employeesCarlsbad, CARead More
Elyon Technologies, an user experience company and software development firm, was launched in 2022. They are headquartered in Carlsbad, California and have a small team. Their services include ux/ui design and custom software development.
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365 Retail MarketsIndustries
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156$10,000+50 - 249 employeesLos Angeles, CAAuspicious Soft Pvt Ltd is a custom software development company in Los Angeles, California and Khuni Majra, India. Founded in 2018, the midsize team provides Custom Software Development, Web Development, Mobile App Development, E-Commerce Development, and more.Read More
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DistacartIndustries
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157Undisclosed10 - 49 employeesCarlsbad, CABased in Carlsbad, California, InterKnowlogy is an AI firm. The small team provides Artificial Intelligence, AI Consulting, AI Agents, Generative AI, and more. The company was launched in 1999.Read More
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158$50,000+2 - 9 employeesSan Francisco, CAArtificial intelligence development company Algo Clan Inc. Was established in 2020. The small team offers Artificial Intelligence, DevOps Managed Services, API Development, Warehousing & Distribution, and more. The agency is headquartered in Calgary, Canada; Edmonton, Canada and San Francisco, California.Read More
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159$25,000+2 - 9 employeesSan Francisco, CARead More
Founded in 2018, Imua software development and UX design firm based in San Francisco, Calif. They have a small team of fewer than 10 employees. They also provide branding and product design services.
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Hey HeroIndustries
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160$50,000+10 - 49 employeesLos Angeles, CARead More
DG Studio is a global creative agency, founded in 2008 and located in Los Angeles, India, and Mexico. They comprise 26 employees specializing in branding, UX/UI design, web development, graphic design, digital marketing, and app programming. They work with a range of clients, typically in real estate, customer services, and healthcare.
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Los Angeles Medical Center (LAMC) of Cosmetic Surgery -
161$25,000+10 - 49 employeesSan Jose, CARead More
Based in San Jose, California, E8 Labs is a mobile app development company. The company provides mobile app development, custom software development, web development, e-commerce development, and more and is small.The company was founded in 2017.
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Enlightened MeditationIndustries
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162$10,000+250 - 999 employeesMilpitas, CARead More
Founded in 2014, Teksun Inc. is a product engineering services company. Their team of around 25 employees is based in San Jose, Calif., with an additional office in Ahmedabad, India. They focus on IoT development, product design, and cloud consulting.
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QEPRIndustries
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163$5,000+10 - 49 employeesSan Francisco, CADreamX, a small mobile application development firm, is located in San Francisco, California. Established in 2022, the team focuses on Mobile App Development, Custom Software Development, Web Development, IoT development, and more.Read More
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Pladri Greek Time Corp. PropTexxIndustries
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164Undisclosed10 - 49 employeesLos Angeles, CAMargasoft is a small Los Angeles, California-based Litigation Support Services company. They specialize in Litigation Support Services, Custom Software Development, Artificial Intelligence, IT managed services, and more and were established in 2005.Read More
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Johnson & JohnsonIndustries
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165$10,000+2 - 9 employeesPasadena, CAGeekOffice, a , was founded in 2019. Headquartered in Sheridan, Wyoming, their small team specializes in.Read More
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166$5,000+10 - 49 employeesSacramento, CARead More
Konnectryx is a small Sacramento, California-based software development firm. They offer custom software development, CRM consulting and SI, e-commerce development, and cloud consulting & SI and were launched in 2012.
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167$10,000+10 - 49 employeesSanta Monica, CARead More
PhD Labs is a web and mobile app development company from Irvine, CA. The team of 10+ has been overcoming business challenges and driving results with digital solutions since 1998.
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Bank of AmericaIndustries
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168$10,000+50 - 249 employeesFremont, CARead More
Agile Soft Systems, Inc, a custom software development firm, was launched in 2012. Their midsize team is headquartered in Fremont, California. Their services include custom software development, application testing, blockchain, enterprise app modernization, and more.
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169$50,000+50 - 249 employeesSan Francisco, CAPak Interactive Studio (PIS) is a custom software development firm located in San Francisco, California; Pirbaba, Pakistan and Mingora, Pakistan. The midsize team specializes in Custom Software Development, AR/VR development, ERP consulting and SI, Video Production, and more and was founded in 2025.Read More
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170$1,000+50 - 249 employeesFremont, CARead More
4 Way Technologies is an application development company. They offer mobile app development and were founded in 2012. Their midsize team is in Noida, India and Fremont, California.
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171$1,000+10 - 49 employeesSan Francisco, CALaunched in 1998, Help4Access (Microsoft Access Technical Support) is an IT managed services company. The small San Francisco, California-based team offers IT managed services, unified communications consulting & SI, custom software development, and IT staff augmentation.Read More
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172$1,000+10 - 49 employeesLos Angeles, CARead More
Digital Octane is an e-commerce development company based in Los Angeles, California. They focus on e-commerce development, web development, ux/ui design, web design, and more and were established in 2015.
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173$10,000+10 - 49 employeesLos Angeles, CARead More
Alena Solutions is an e-commerce development firm based in Woodland Hills, Calif. Founded in 2016, their team of 30 serves clients in the e-commerce and automotive sectors. Services include custom software development and web development.
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HP TunersIndustries
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174$1,000+2 - 9 employeesLos Angeles, CARead More
Themis Web Technologies is a software development company based in Los Angeles, California. Founded in 2007, they are a sole proprietorship that provides web development, e-commerce development, custom software development, and enterprise app modernization.
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Incited MediaIndustries
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175$25,000+50 - 249 employeesNewark, CACalibraint Technologies is a Chennai, India-based blockchain company. The midsize team focuses on blockchain, custom software development, Artificial Intelligence, application management & support, and more and was launched in 2015.Read More
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176$25,000+10 - 49 employeesDaly City, CARead More
Software development firm Talos Digital is located in Medellín, Colombia and Austin, Texas. The midsize team specializes in custom software development, ux/ui design, mobile app development, web design, and more and was founded in 2011.
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177$5,000+50 - 249 employeesSacramento, CARead More
West Advanced Technologies Inc is a midsize Sacramento, California-based cybersecurity company. The team specializes in cybersecurity, IT staff augmentation, cloud consulting & SI, and IT managed services.
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178$25,000+10 - 49 employeesSan Diego, CARead More
NoMoBo is a San Diego-based software company founded in 2017 with more than 10 members. They specialize in custom software, web, and mobile app development services for small and mid-market firms in industries such as real estate, IT, and utilities.
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HOA MessengerIndustries
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179$50,000+10 - 49 employeesLos Angeles, CARead More
The Development Factory is a software development firm based in Los Angeles, with a branch office in Toronto. Founded in 2009. With a team of 10, The Development Factory specializes in custom software development, mobile development, product design and more.
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Givsum - Empowering every person to be a force for goodIndustries
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180$5,000+10 - 49 employeesMarina del Rey, CABee Techy, a small web development firm, is in Marina del Rey, California. They provide Web Development, Mobile App Development, Artificial Intelligence, Custom Software Development, and more and were founded in 2020.Read More
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