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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- $25,000+
- 50 - 249 employees
- New York, NY
Launched in 2002, DOOR3 is an UX design agency. The company offers UX/UI Design, Custom Software Development, and Web Development and has a midsize team.Read MoreIndustries
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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.
Industries
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541
- Undisclosed
- 50 - 249 employees
- Cupertino, CA
AppPerfect Corp is a custom software development firm. Headquartered in Cupertino, California, their team focuses on Custom Software Development and Robotics Process Automation.Read More - Get Started
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542
- Undisclosed
- 50 - 249 employees
- San Jose, CA
BetaSoft Inc. Is a cloud consulting & SI company. Their midsize team of employees is based in San Jose, California. Their team provides cloud consulting & SI and Application Testing.Read More -
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.
Industries
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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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543
- Undisclosed
- 1,000 - 9,999 employees
- Sunnyvale, CA
Xoriant is an UX agency launched in 1990. The company offers UX/UI Design and BI & big data consulting & SI, and is large.Read MoreIndustries
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544
- Undisclosed
- 50 - 249 employees
- Santa Clara, CA
EITACIES Inc., a data analytics company, is located in Santa Clara, California. Founded in 2008, the team focuses on BI & big data consulting & SI and Custom Software Development.Read MoreIndustries
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545
- Undisclosed
- 50 - 249 employees
- Sunnyvale, CA
Based in Sunnyvale, California, TRUEXTEND, Inc. Is a custom software development firm. The team offers Custom Software Development and Web Development.Read More -
546
- Undisclosed
- 50 - 249 employees
- Chico, CA
Liatrio, a cloud consulting & SI company, was launched in 2023. The team focuses on cloud consulting & SI and Custom Software Development and is headquartered in Chico, California.Read More -
547
- Undisclosed
- 50 - 249 employees
- Chico, CA
Shasta QA , an Application Testing company, was launched in 2002. The midsize team offers Application Testing and Custom Software Development.Read MoreIndustries
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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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548
- Undisclosed
- 50 - 249 employees
- Redondo Beach, CA
De'logo Studio is a web design company. The team is headquartered in Redondo Beach, California, and their services include Web Design and Custom Software Development.Read More -
549
- Undisclosed
- 50 - 249 employees
- Redwood City, CA
Split Software, Inc. Is an Application Testing company. They offer Application Testing and Custom Software Development and were launched in 2015.Read MoreIndustries
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550
- $5,000+
- 50 - 249 employees
- Los Angeles, CA
Prime Mobile Apps is a midsize web design agency. They specialize in Web Design and Custom Software Development and were founded in 2024.Read More -
551
- Undisclosed
- 50 - 249 employees
- San Diego, CA
Miva, Inc. Is a midsize SEO services firm based in Tampa, Florida and San Diego, California. Their services include Search Engine Optimization and Web Design.Read More -
552
- $5,000+
- 10 - 49 employees
- San Mateo, CA
Read MoreLocated in San Mateo, California and Beograd, Serbia, Action Engine is a software development firm. They offer custom software development, web development, ux/ui design, mobile app development, and more and were launched in 2017.
Clients
- ESRI
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553
- $10,000+
- 50 - 249 employees
- Fullerton, CA
Read MorePegasus One is a software development company based in Fullerton, Calif., with an additional office in Los Angeles. Founded in 2004, the team of 35 specializes in custom software development, BI and big data consulting and SI, and CRM consulting and SI.
Clients
- Toshiba
- Disney
- City National Bank
- Honda
Industries
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554
- $1,000+
- 250 - 999 employees
- Oakland, CA
AMPLIZ is a Direct Marketing company. Their midsize team is in Oakland, California. Their services include Direct Marketing and Business Consulting.Read MoreIndustries
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555
- $10,000+
- 2 - 9 employees
- Long Beach, CA
Coremaitri Software, a small software development firm, is located in Long Beach, California and New Delhi, India. Their services include Custom Software Development and ERP consulting and SI.Read More -
556
- $1,000+
- 10 - 49 employees
- Mountain View, CA
Read MoreTCO TEAM is a web agency based in Yerevan, Armenia, and founded in 2016. With over 10 members, they offer custom software, web, and e-commerce development solutions to small and mid-market firms.
Clients
- Sparsis Holding
Industries
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557
- $10,000+
- 50 - 249 employees
- San Diego, CA
Read MoreBitCot is a development firm from San Diego. It was founded in 2011 and has grown to a team of more than 30 that does mobile app development, web development, and custom software development for small and large companies alike.
Clients
- Dick's Sporting Goods
Industries
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558
- $10,000+
- 50 - 249 employees
- Riverside, CA
In Riverside, California, Q-vantage is a midsize social media marketing company. Their services include Social Media Marketing and IT strategy consulting.Read MoreClients
- The Salvation Army
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559
- $1,000+
- 2 - 9 employees
- Redwood City, CA
AstiLabs Inc. Is a custom software development firm. Their team is based in Redwood City, California. The firm provides Custom Software Development and E-Commerce Development.Read More -
560
- Undisclosed
- 2 - 9 employees
- West Covina, CA
IMCOR Technologies, a small software development company, is headquartered in West Covina, California. Their services include Custom Software Development and E-Commerce Development.Read More -
561
- $1,000+
- 2 - 9 employees
- San Diego, CA
StudioGoal is a custom software development firm launched in 2015. Their team specializes in Custom Software Development and Application Management & Support.Read MoreIndustries
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562
- Undisclosed
- 2 - 9 employees
- Oceanside, CA
Software development firm Expeditionary Technical Solutions, Incorporated is in Oceanside, California. They provide Custom Software Development and Application Management & Support.Read More -
563
- Undisclosed
- 2 - 9 employees
- Pleasant Hill, CA
Revealio, Inc., a software development firm, was launched in 2016. The team specializes in Custom Software Development and IT managed services and is based in Pleasant Hill, California.Read More -
564
- Undisclosed
- 2 - 9 employees
- Long Beach, CA
Read MoreLocated in Long Beach, California, Delta Data Services LLC is an IT strategy consulting company. The agency provides IT strategy consulting, BI & big data consulting & SI, IT managed services, and custom software development and is small.The agency was founded in 2009.
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565
- $5,000+
- 2 - 9 employees
- Irvine, CA
Headquartered in Irvine, California and Denver, Colorado, HawkenIO is a small software development firm. The team focuses on Custom Software Development and Artificial Intelligence.Read More -
566
- Undisclosed
- 2 - 9 employees
- Glendale, CA
Established in 2010, toKernel is a web design agency. Their services include Web Design and Custom Software Development.Read More -
567
- Undisclosed
- 2 - 9 employees
- Huntington Beach, CA
Proticom is a custom software development firm. Based in Huntington Beach, California, the company was launched in 1996. Their services include Custom Software Development and Application Testing.Read MoreIndustries
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568
- $1,000+
- 10 - 49 employees
- Irvine, CA
Charisol Technology is a website development firm founded in 2015. The company focuses on Web Development and Mobile App Development, and is small.Read MoreIndustries
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569
- $10,000+
- 250 - 999 employees
- San Francisco, CA
Founded in 2012, SmartSmith Infotech is a midsize custom software development firm. Their team provides Custom Software Development and Web Development.Read MoreIndustries
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570
- $50,000+
- 50 - 249 employees
- Sunnyvale, CA
SapidBlue Technologies is a software development firm launched in 2021. Their midsize team is in Sunnyvale, California and Gurugram, India. The firm provides custom software development, Artificial Intelligence, IT strategy consulting, and blockchain.Read MoreIndustries
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