Top 100 Software Development Companies in California
The Best of November 2024
Looking 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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Featured providers
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- $10,000+
- 10 - 49 employees
- Parsippany-Troy Hills, NJ
Read MoreOrigami Studios is a mobile application development company headquartered in Parsippany, NJ with additional locations in San Diego, and Lahore, Pakistan. Founded in 2012, they now have about 16 employees. Their services include mobile app and e-commerce development as well as UX/UI design for small to enterprise-sized clients in the advertising and marketing, business services, and gaming industries.
Industries
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- $50,000+
- 250 - 999 employees
- London, England
Read MoreHeadquartered in London, Opinov8 Technology Services is a technology solutions company that was founded in 2016. With offices in Ukraine and Spain, the team of 88 works with mid-market and small businesses in the financial services, advertising, marketing, gambling, hospitality, IT, and media industries. Opinov8 specializes in custom software development, enterprise app modernization, big data consulting, and clould consulting for clients.
Industries
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- $25,000+
- 50 - 249 employees
- Buenos Aires, Argentina
Read More10Pines is a custom software development firm based in Buenos Aires, Argentina. Founded in 2009, their team of 70 serves clients in the e-commerce, finance, and retail sectors. Services include iOS/Android, Ruby on Rails, ReactJS, and JavaScript development.
Industries
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- $25,000+
- 50 - 249 employees
- Warszawa, Poland
Read MoreTeaCode.io is a Warsaw-based full-stack software development company that was founded in 2015. Their team of 12 specializes in custom software, web, and mobile app development. They also know their way around IoT and AI projects. They usually work with small and mid-sized companies and have so far completed many projects in fields of education, medical care, travel, security, communications, e-commerce, and more.
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1
- $50,000+
- 50 - 249 employees
- Newport Beach, CA
Read MoreSaritasa is a full-source software development firm based in Newport Beach, Calif. With additional offices in New York City, Russia, and Vietnam. They were founded in 2005 and employ a team of about 90 who provide custom software, web, mobile, IoT, and AR/VR development for mostly mid-sized businesses.
Clients
- iHeartMedia
Industries
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2
- $25,000+
- 50 - 249 employees
- San Jose, CA
Read MoreDiffco is a company of world-class senior developers in Mobile, Web, and AI to launch, accelerate, and support your business applications. 13+ years of experience and 1000+ successfully launched projects. We succor our customers to become market leaders.
Clients
- Mars
- Chemtreat
- Nokia
- Instreamatic
Industries
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Featured providers
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- $25,000+
- 250 - 999 employees
- Unterschleißheim, Germany
Read MoreGP Solutions is a software development company headquartered in Munich, Germany, with that specializes in web development, custom software development, and web design. Founded in 2002, the company builds custom web applications to help clients realize their business goals. A company of just less than 150 employees, GP Solutions works with enterprise and mid-market outfits in the IT and hospitality industries, offering end-to-end solutions that increase traffic, drive sales, and connect with consumers.
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- $25,000+
- 10 - 49 employees
- Medina, WA
Read MoreA full-service digital design and development agency, Flower Press Creative Studio takes on mobile app, web, and custom software development projects. Founded in 2001, the small team of 6 is headquartered in Seattle and also has experience in UI/UX design.
Industries
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- $10,000+
- 250 - 999 employees
- Austin, TX
Read MoreIn Austin, Texas and Montevideo, Uruguay, Qubika is a product design company. The midsize firm was established in 2006. Their services include product design, cloud consulting & SI, IoT development, application testing, and more.
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3
- $50,000+
- 250 - 999 employees
- Irvine, CA
Read MoreVincit California is a software development company that has provided mobile app development, custom software development, and UX/UI design services to their clients since 2007. Their team of 1,000 employees is based out of Irvine, Calif. With another office in Helsinki.
Clients
- Splunk
Industries
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4
- $50,000+
- 1,000 - 9,999 employees
- San Francisco, CA
Read MoreToptal is a private network of freelance technologists and designers. With more than 2000 freelance workers in its exclusive community, Toptal can be instrumental in finding the right freelance partner for development projects. The community includes developers for any platform, finance experts, and designers of both visual material and graphic interfaces. Because of its screening process, Toptal combines the reliability and expertise of an agency with the flexibility and affordability of freelance work.
Clients
- Toptal clients include J.P. Morgan
Industries
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5
- $25,000+
- 10 - 49 employees
- El Segundo, CA
Read MoreFounded in 2001, Thinklogic is a development firm. Their small team is based in El Segundo, Calif. They focus on custom software, web, and mobile app development.
Clients
- Johnson & Johnson
Industries
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6
- $10,000+
- 10 - 49 employees
- Irvine, CA
Read MoreKingsmen Digital Ventures is a custom software development firm established in 2017. Their small team is based in Irvine, California and provides custom software development, ux/ui design, mobile app development, and web development.
Clients
- Evolus
Industries
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7
- $100,000+
- 250 - 999 employees
- Los Angeles, CA
Read MoreFounded in 2007, Theorem is a software development firm. The midsize team specializes in custom software development, ux/ui design, IoT development, IT strategy consulting, and more. The company is based in Los Angeles, California; Santa Monica, California; New York, New York and San Francisco, California.
Clients
- AT&T
Industries
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Featured providers
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- $10,000+
- 10 - 49 employees
- Johannesburg, South Africa
Read MoreCubeZoo is a web development company. The small team is headquartered in Randburg, South Africa. Their services include web development, mobile app development, and enterprise app modernization.
Industries
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- $5,000+
- 2 - 9 employees
- Mission Viejo, CA
Read MoreCalibec is a small custom software development firm. Founded in 2021, the team offers custom software development, web development, mobile app development, enterprise app modernization, and more. The agency is located in Mission Viejo, California.
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8
- $25,000+
- 10 - 49 employees
- Vista, CA
Read MoreThe Smyth Group is a digital agency founded in San Diego in 2005. Their team of more than 10 specializes in UX/UI design, custom software development, and web development solutions for mid-market and enterprise-level clients.
Clients
- Columbia Sportswear
Industries
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9
- $10,000+
- 50 - 249 employees
- San Francisco, CA
Read MoreAirDev is a San Francisco based software development company. They were founded in 2015 and have a team of 11 employees who specialize in the custom software, web, mobile app development.
Clients
- HP
Industries
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10
- $10,000+
- 50 - 249 employees
- San Francisco, CA
Read MoreAzumo is a San Francisco based software development services company. They have additional offices in McKinney, Texas and Rosario, Argentina. They were founded in 2016, and specialize in custom software development, mobile app development, and the use of AI.
Clients
Industries
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11
- $50,000+
- 50 - 249 employees
- San Francisco, CA
Read MoreAdmios Nearshore Software Development is an IT staff augmentation company. They are based in Panama City, Panama; San Francisco, California and San Luis, Chile and have a midsize team that specializes in IT staff augmentation, custom software development, e-commerce development, and IT managed services. The company was launched in 2005.
Industries
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12
- $50,000+
- 50 - 249 employees
- San Diego, CA
Read MoreWebcentrIQ is a software development company in San Diego. Founded in 2017, they have about 10 employees that serve mostly midmarket and small-business clients in the healthcare, financial, and IT industries. Services include custom software development, mobile app development, and UI/UX design.
Clients
- Campaign Monitor
Industries
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13
- $100,000+
- 50 - 249 employees
- Newark, CA
Read MoreDibutech is a software development firm. The midsize Concord, California-based team provides custom software development and web development. The firm was launched in 2018.
Industries
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14
- $25,000+
- 10 - 49 employees
- Pasadena, CA
Read MoreCustom software development firm Serious Development was founded in 2014. Their small team is based in Pasadena, California and Houston, Texas and focuses on custom software development, mobile app development, web development, web design, and more.
Industries
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15
- $10,000+
- 50 - 249 employees
- San Francisco, CA
Read MoreFounded in 2012, SF AppWorks is a digital agency that produces innovative technologies for mainly midmarket companies. Based in San Francisco, their team of 50+ specializes in web development, mobile app development, UX/UI design, and custom software development.
Clients
- West Elm
Industries
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16
- $50,000+
- 50 - 249 employees
- San Francisco, CA
Read MoreMayven is a San Francisco based software design and development company. They were founded in 2015 and have a team of 25 employees. They specialize in web, custom software, and eCommerce development for enterprise and midmarket clients.
Clients
- Andreesen Horowitz
Industries
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17
- $50,000+
- 10 - 49 employees
- Long Beach, CA
Read MoreEstablished in 2001, JLOOP is a mobile application development firm. Their small team is based in Long Beach, California and , . Their team focuses on mobile app development, web development, and video production.
Clients
- IBM
Industries
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18
- $50,000+
- 50 - 249 employees
- Santa Monica, CA
Read MoreSidebench is a strategy, design, and development consultancy with a team of 70+ experts headquartered in Los Angeles. Founded in 2012, Sidebench caters to enterprise companies and new ventures seeking the management consultants & experienced founders, the technical chops of systems architects, and a UX-first approach. Sidebench provides app and web development, UX/UI design, web design, and app testing via a fully integrated product delivery team.
Clients
- Microsoft Corporation
Industries
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19
- $5,000+
- 2 - 9 employees
- San Diego, CA
Read MoreCodeNoise is a development team based in San Diego. They have a team of around 5 employees and were founded in 2011. They provide custom software, web, and mobile app development services.
Clients
- TruMed Systems
Industries
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20
- $25,000+
- 250 - 999 employees
- Los Angeles, CA
Read MoreNearsure is a web development agency that has been offering web development, IT staff augmentation, and AI services to their clients since 2018. Their 50 employees are based out of Hollywood, Calif., as well as Costa Rica, Colombia, Venezuela, Bolivia, and Uruguay.
Clients
- Staywell
Industries
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21
- $10,000+
- 50 - 249 employees
- Berkeley, CA
Read MoreFounded in 2016, Crowdbotics is a development company based in Berkeley, Calif. They work with businesses of all sizes in the business services, consumer products, and healthcare fields.
Clients
- Stripe
Industries
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22
- $25,000+
- 50 - 249 employees
- San Francisco, CA
ScaleTech, a mobile application development firm, was established in 2017. Their small team is in Ahmedabad, India; San Francisco, California and Frankfurt am Main, Germany. Their services include mobile app development, enterprise app modernization, e-commerce development, IoT development, and more.Read MoreIndustries
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23
- $25,000+
- 10 - 49 employees
- Irvine, CA
Baytech Consulting is a custom software development firm founded in 2007. Their small team is headquartered in Irvine, California. Their services include Custom Software Development, Web Development, Mobile App Development, Artificial Intelligence, and more.Read MoreClients
- Petra Medical College
Industries
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24
- $50,000+
- 2 - 9 employees
- El Segundo, CA
Read MoreExpedition Co, is a software development company that was founded in 2017. The company is headquartered in Palos Verdes Estates, Calif. and is currently made up of 8 employees. They specialize in mobile app development, UX/UI design, and custom software development.
Clients
- Hewlett-Packard
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25
- $5,000+
- 10 - 49 employees
- San Francisco, CA
Read MoreLaunched in 2020, Apex Lab is a software development company. Their small team is based in Tallinn, Estonia and San Francisco, California. Their team offers custom software development, mobile app development, web development, and enterprise app modernization.
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26
- $25,000+
- 50 - 249 employees
- San Francisco, CA
Read MoreGrio is a software consulting firm based in San Francisco, Calif, that was established in 2008. Their team of 50 employees offers web development, mobile app development, and UX/UI design services.
Industries
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27
- $10,000+
- 10 - 49 employees
- Los Angeles, CA
Read MoreEndertech is a California-based design agency was founded in 2000. Its team of 20+ has experience in digital marketing, web design, software development, and UX/UI design.
Clients
- Doyle
Industries
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28
- $25,000+
- 10 - 49 employees
- Chula Vista, CA
Read MoreRivka is a small IT staff augmentation company. They provide IT staff augmentation, custom software development, and mobile app development and were launched in 2011.
Industries
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29
- $100,000+
- 10 - 49 employees
- San Francisco, CA
Read MoreWLCM App Studio is a software development firm launched in 2011. The small San Francisco, California-based team specializes in custom software development, mobile app development, ux/ui design, application testing, and more.
Industries
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30
- $25,000+
- 50 - 249 employees
- Los Angeles, CA
Read MoreCitrusBits is a mobile app development company based in Los Angeles, CA and founded in 2005. The team of nearly 60 employees is passionate about creating mobile technology and responsive mobile content for all businesses.
Clients
- Burger King
Industries
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