California is home to a vibrant software development industry, playing a crucial role in the global technology ecosystem. Companies in this sector create various software applications, from mobile apps to complex enterprise solutions, targeting markets such as healthcare, finance, and e-commerce. This industry is shifting towards integrated services emphasizing artificial intelligence and cloud computing, enabling businesses to streamline processes and enhance user experiences. With the rise of remote work and global collaboration, many California-based firms are tapping into international talent pools, ensuring innovative approaches meet evolving client demands, while addressing contemporary technology challenges.

This list features 20 notable software development companies based in California, ranging from startups to established firms, many of which employ between 100 to 5,000 individuals. Founded as early as 1992 and up to 2016, these companies specialize in various sectors like healthcare and fintech. Some, such as Robosoft Technologies and BairesDev, have a considerable global presence, incorporating teams from countries like India and Ukraine while delivering tailored services to clients locally and internationally.

Continue reading to discover the top software development companies in California.

Top 20 Software Development Companies in California

1. Robosoft Technologies

• Website: robosoftin.com
• Ownership type: Corporate
• Headquarters: San Francisco, California, United States (USA)
• Employee distribution: India 97%, Other 3%
• Latest funding: $108.0M, August 2021
• Founded year: 1996
• Headcount: 1001-5000
• LinkedIn: robosoft-technologies

Robosoft Technologies is a corporate entity based in San Francisco, California, with a significant operational footprint in India. Established in 1996, the company specializes in digital transformation services, offering a wide range of solutions that include digital consulting, experience design, software engineering, and cybersecurity. With a workforce of over 1,100 employees, Robosoft has developed a robust portfolio that caters to various industries such as banking, media, retail, and healthcare. Their approach focuses on enhancing digital presence and user engagement for clients, which has led to successful collaborations with over 150 customers across 35 countries. In 2021, Robosoft secured $108 million in funding, underscoring its growth trajectory and the confidence investors have in its business model. The company is recognized for its commitment to delivering innovative solutions that drive growth and customer satisfaction.

2. Cyber Infrastructure (CIS)

• Website: cisin.com
• Ownership type: Private
• Headquarters: San Jose, California, United States (USA)
• Employee distribution: India 94%, United States (USA) 3%, Other 2%
• Founded year: 2003
• Headcount: 1001-5000
• LinkedIn: cyber-infrastructure

Cyber Infrastructure (CIS) is a software development company based in San Jose, California, founded in 2003. With a workforce of approximately 1,000 employees, the company specializes in providing custom software solutions and IT services. CIS serves a broad spectrum of clients, ranging from startups to Fortune 500 companies, and offers a variety of services including web and mobile app development, artificial intelligence integration, and IT consulting. The company has completed over 5,000 projects, showcasing its capability to deliver tailored technology solutions that enhance operational efficiency and drive growth for its clients. CIS has a significant presence in India, where the majority of its workforce is located, allowing it to leverage cost-effective development resources while maintaining a presence in the U.S. market. Their commitment to customer service and project success has earned them recognition in the industry, making them a notable player in the software development sector.

3. BairesDev

• Website: bairesdev.com
• Ownership type: Private
• Headquarters: San Francisco, California, United States (USA)
• Employee distribution: United States (USA) 39%, Brazil 17%, Argentina 9%, Other 35%
• Founded year: 2009
• Headcount: 1001-5000
• LinkedIn: bairesdev

BairesDev is a software development company based in San Francisco, California, with a significant presence in Latin America. Founded in 2009, it specializes in providing customized software solutions and IT consulting services. The company has grown to employ over 3,000 professionals, offering services such as staff augmentation, dedicated teams, and software outsourcing. BairesDev has successfully executed more than 1,200 projects for over 500 clients, including notable names like Google and Rolls Royce. Their expertise spans various technologies, including React, Node.js, Python, and more. BairesDev has been recognized for its rapid growth and commitment to customer satisfaction, achieving a client rating of 4.9 out of 5. The company also emphasizes social responsibility through initiatives like their Giveback Program, which aims to create opportunities for talented individuals. With a strong focus on quality and a robust talent pool, BairesDev continues to be a significant player in the software development industry.

4. StartupSoft

• Website: startupsoft.com
• Ownership type: Private
• Headquarters: San Francisco, California, United States (USA)
• Employee distribution: Ukraine 94%, United States (USA) 3%, Other 3%
• Founded year: 2016
• Headcount: 51-200
• LinkedIn: startupsoft

StartupSoft is a software engineering firm based in San Francisco, California, with a significant operational presence in Ukraine. Founded in 2016 by brothers Andrew and Alex Vasylyk, the company has grown to employ around 125 professionals. StartupSoft specializes in custom software development, staff augmentation, and UX/UI design, primarily serving startups and large corporations in industries such as fintech, healthcare, media, education, real estate, fitness, and hospitality. The company prides itself on its ability to provide tailored technological solutions that enhance operational efficiency. With a strong emphasis on building trust and long-term relationships with clients, StartupSoft has successfully partnered with over 100 clients worldwide, achieving a high customer satisfaction score. Their expertise in advanced technologies, including AI/ML and cloud services, further solidifies their position in the software development industry.

5. Wizeline

• Website: wizeline.com
• Ownership type: Corporate
• Headquarters: San Francisco, California, United States (USA)
• Employee distribution: Mexico 70%, Colombia 17%, Spain 4%, Other 8%
• Latest funding: Other (Debt), March 2024
• Founded year: 2014
• Headcount: 1001-5000
• LinkedIn: wizeline

Wizeline is a technology services provider based in San Francisco, California, founded in 2014. The company specializes in digital transformation and product development, offering a comprehensive suite of services that includes AI solutions, product engineering, cloud services, and more. With a workforce of approximately 1,516 employees, Wizeline operates primarily in Mexico, Colombia, and Spain, showcasing a strong international presence. The company serves a variety of industries, including media and entertainment, retail, technology, financial services, and healthcare. Wizeline is committed to enhancing operational efficiency and driving innovation for its clients, which is evident in their numerous case studies highlighting successful collaborations with companies like Rapid Robotics and Etsy. Their focus on education and community involvement, through initiatives like the Wizeline Academy, further emphasizes their commitment to fostering talent and innovation in the tech sector.

6. TechAhead

• Website: techaheadcorp.com
• Ownership type: Private
• Headquarters: Agoura Hills, California, United States (USA)
• Employee distribution: India 98%, United States (USA) 2%
• Founded year: 2009
• Headcount: 201-500
• LinkedIn: techahead

TechAhead, based in Agoura Hills, California, is a private digital solutions provider that specializes in mobile and web app development, artificial intelligence, and IoT solutions. Since its inception in 2009, the company has focused on delivering tailored software solutions and consulting services to enhance operational efficiency and user engagement for businesses across various sectors, including healthcare and finance. With a workforce of approximately 289 employees, predominantly located in India, TechAhead leverages a global talent pool to meet client needs effectively. The company has built a reputation for innovation, evidenced by its recognition in multiple industry awards, including the Webby Awards for app development. TechAhead's extensive service offerings include cloud engineering, custom software development, and digital transformation, making it a versatile player in the software development industry.

7. Uptech

• Website: uptech.team
• Ownership type: Private
• Headquarters: Los Angeles, California, United States (USA)
• Employee distribution: Ukraine 85%, Senegal 3%, United States (USA) 3%, Other 9%
• Founded year: 2016
• Headcount: 51-200
• LinkedIn: uptech-team

Uptech is a software development company based in Los Angeles, California, founded in 2016. The company specializes in mobile and web app development, offering a comprehensive suite of services that includes UX/UI design, IT staff augmentation, and software product development. Uptech primarily serves businesses in sectors such as E-commerce, Fintech, and Healthcare, focusing on creating applications that prioritize user experience. The company operates with a strong emphasis on transparency and collaboration, ensuring that client needs are met throughout the development process. With a significant portion of its workforce located in Ukraine, Uptech has built a global presence, allowing it to leverage talent from various regions. The company has successfully partnered with over 200 clients, showcasing its ability to deliver high-quality software solutions that align with market demands.

8. Digital Foundry, Inc.

• Website: digitalfoundry.com
• Ownership type: Private
• Headquarters: Tiburon, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1992
• Headcount: 51-200
• LinkedIn: digital-foundry

Digital Foundry, Inc. is a custom software development firm based in Tiburon, California. Founded in 1992, the company specializes in creating bespoke digital solutions for a range of industries, including healthcare, finance, and telecommunications. They partner with large organizations, particularly those in the Fortune 500 and Global 2000, to help them navigate the complexities of digital transformation. Their service offerings include custom software development, technology consulting, digital product design, and cloud solutions. Digital Foundry prides itself on its collaborative approach, ensuring that each project is tailored to meet the unique needs of its clients. The company has built a reputation for delivering high-quality software solutions that drive business success and enhance operational efficiency.

9. Nearsoft, Inc

• Website: nearsoft.com
• Ownership type: Private
• Headquarters: San Jose, California, United States (USA)
• Employee distribution: Mexico 100%
• Founded year: 2006
• Headcount: 201-500
• LinkedIn: nearsoft

Nearsoft, Inc, now operating under the name Encora, is a digital engineering company based in San Jose, California. Founded in 2006, the company has grown to employ approximately 500 professionals, primarily located in Mexico. Encora specializes in providing strategic consulting and technology services, focusing on helping businesses modernize their technology stacks and improve operational efficiency. Their service portfolio includes software development, cloud solutions, AI integration, and managed services, catering to various industries such as healthcare, finance, and retail. Encora has built a reputation for delivering tailored solutions that meet the unique needs of enterprises and digital natives alike. The company has not reported any recent funding, indicating a stable operational model that relies on its service offerings and client relationships.

10. Nextgen Technologies Inc

• Website: nextgentechinc.com
• Ownership type: Private
• Headquarters: San Jose, California, United States (USA)
• Employee distribution: United States (USA) 58%, India 36%, Pakistan 4%, Other 3%
• Founded year: 2003
• Headcount: 10001+
• LinkedIn: nextgen-technologies-inc

Nextgen Technologies Inc, based in San Jose, California, is a private software development company founded in 2003. With a workforce of around 215 employees, the company specializes in creating innovative technology solutions tailored to meet the unique needs of businesses across various sectors. Their service offerings include app development, software development, web development, data analysis, and UI/UX design. Nextgen Technologies is dedicated to helping clients navigate the complexities of the digital world, enhancing operational efficiency through customized software solutions and consulting services. The company has a significant presence in the United States, India, and Pakistan, reflecting its global reach and capability to deliver services across different markets. Their focus on long-term client relationships and commitment to excellence further underscores their role in the software development industry.

11. Svitla Systems, Inc.

• Website: svitla.com
• Ownership type: Private
• Headquarters: Corte Madera, California, United States (USA)
• Employee distribution: Ukraine 55%, United States (USA) 15%, Mexico 12%, Other 18%
• Founded year: 2003
• Headcount: 501-1000
• LinkedIn: svitla-systems-inc-

Svitla Systems, Inc. is a software development and consulting firm based in Corte Madera, California. Established in 2003, the company specializes in delivering digital solutions that include custom software engineering, cloud services, and artificial intelligence applications. With a workforce of approximately 711 employees, Svitla operates globally, with significant talent pools in Ukraine, the United States, Mexico, and several other countries. The firm has successfully completed over 5,000 projects, serving a wide array of clients from startups to Fortune 500 companies. Svitla Systems prides itself on its ability to enhance client operations through innovative technology, and it has been recognized for its excellence in the industry, including being named in the IAOP's Top 100 Global Outsourcing Companies for 2023. The company is also certified as a Women-Owned Business, reflecting its commitment to diversity and inclusion in the tech sector.

12. Softermii

• Website: softermii.com
• Ownership type: Private
• Headquarters: Los Angeles, California, United States (USA)
• Employee distribution: Ukraine 81%, United States (USA) 13%, Other 6%
• Founded year: 2014
• Headcount: 51-200
• LinkedIn: softermii

Softermii is a software development company based in Los Angeles, California, founded in 2014. With a workforce of 101 employees, the company specializes in creating custom software solutions tailored to various sectors, including Real Estate, Healthcare, E-commerce, and Fintech. Their service offerings range from product design and engineering to project management, catering primarily to businesses looking to enhance their digital capabilities. Softermii has developed proprietary solutions like VidRTC, a video-based software engine, and Apartmii, a platform designed for real estate applications. The company has established a strong presence in the software development industry, with a significant portion of its workforce located in Ukraine, which is known for its technical expertise. Client testimonials reflect a commitment to quality and timely project delivery, further solidifying Softermii's position in the market.

13. Mev, LLC

• Website: mev.com
• Ownership type: Private
• Headquarters: Walnut Creek, California, United States (USA)
• Employee distribution: Ukraine 90%, United States (USA) 10%
• Founded year: 2006
• Headcount: 51-200
• LinkedIn: mev-llc

Mev, LLC, based in Walnut Creek, California, is a private software development firm founded in 2006. The company specializes in creating custom software solutions tailored to meet the unique needs of businesses across various sectors. With a workforce of approximately 105 employees, predominantly located in Ukraine, Mev offers a range of services including enterprise software solutions, software product development, staffing, and ongoing support and maintenance. Over the years, Mev has successfully completed more than 200 projects, showcasing their ability to adapt and deliver in a competitive market. Their client base includes companies from industries such as healthcare, real estate, and technology, reflecting their versatility and expertise in software development. Mev's approach emphasizes clarity, transparency, and a strong alignment with client goals, which has earned them a reputation for reliability and quality in their deliverables.

14. Codebay

• Website: codebay.us
• Ownership type: Private
• Headquarters: San Diego, California, United States (USA)
• Employee distribution: Mexico 100%
• Founded year: 2014
• Headcount: 51-200
• LinkedIn: codebayus

Codebay, founded in 2014 and based in San Diego, California, is a private software development company that specializes in creating web and mobile applications. With a team of approximately 19 employees, the company focuses on providing maintenance and quality assurance services to enhance operational efficiency for its clients. Codebay serves a variety of sectors, including finance, education, healthcare, and retail, demonstrating its capability to address different industry needs. The company employs a nearshore model, utilizing talent from Mexico, which allows them to offer competitive pricing while maintaining quality. Their methodology is rooted in agile practices, ensuring flexibility and responsiveness to client requirements. Codebay's commitment to delivering high-quality software solutions positions it as a relevant player in the software development industry.

15. arkusnexus

• Website: arkusnexus.com
• Ownership type: Private
• Headquarters: San Diego, California, United States (USA)
• Employee distribution: Mexico 89%, United States (USA) 8%, Colombia 2%
• Founded year: 2003
• Headcount: 201-500
• LinkedIn: arkus-services

ArkusNexus, founded in 2003 and based in San Diego, California, is a private software development company that specializes in a range of technology solutions. With a workforce of approximately 295 employees, the company focuses on staff augmentation, mobile development, quality assurance, user experience, artificial intelligence, and insurtech solutions. ArkusNexus serves various industries, including healthcare and finance, helping businesses enhance their software capabilities and operational efficiency. The company operates primarily with a nearshore model, utilizing a significant talent pool in Mexico, which allows for cost-effective and timely project delivery. Their commitment to continuous learning and tech leadership positions them as a proactive partner for businesses looking to innovate and grow in a competitive environment.

16. EffectiveSoft

• Website: effectivesoft.com
• Ownership type: Private Equity
• Headquarters: San Diego, California, United States (USA)
• Employee distribution: Belarus 52%, Poland 35%, United States (USA) 10%, Other 2%
• Latest funding: September 2021
• Founded year: 2003
• Headcount: 201-500
• LinkedIn: effectivesoft

EffectiveSoft Corporation, founded in 2003 and headquartered in San Diego, California, is a private equity software development company with a workforce of approximately 325 employees. The company specializes in a broad spectrum of IT services, including mobile app development, web development, cloud applications, and data analytics. EffectiveSoft caters to various industries, notably healthcare and fintech, providing tailored software solutions that enhance operational efficiency. With a significant portion of its workforce located in Belarus and Poland, the company benefits from a rich talent pool. EffectiveSoft has successfully completed over 1,835 projects, showcasing its extensive experience and commitment to delivering quality software solutions. The company maintains high standards of information security, evidenced by its ISO/IEC 27001:2013 certification, and has established partnerships with major technology firms like Microsoft and Amazon Web Services. EffectiveSoft continues to be recognized for its contributions to the software development field, appearing on various lists of top development companies.

17. Code Power

• Website: codepwr.com
• Ownership type: Private
• Headquarters: San Francisco, California, United States (USA)
• Employee distribution: Argentina 40%, United States (USA) 29%, Colombia 11%, Other 20%
• Founded year: 2017
• Headcount: 201-500
• LinkedIn: codepwr

Code Power, founded in 2017 and based in San Francisco, California, is a private software development company that specializes in custom software solutions, IT staff augmentation, and delivery teams. The company operates across various industries, including finance, healthcare, and gaming, providing tailored technology solutions to enhance clients' capabilities and accelerate project delivery. With a workforce that includes a significant percentage of remote employees from countries like Argentina and Colombia, Code Power leverages a nearshore model to offer flexible and efficient services. Their expertise spans multiple technologies and methodologies, allowing them to cater to the unique needs of startups and enterprises. Code Power has worked with notable clients such as Uber, Google, and Riot Games, showcasing their ability to handle projects for ambitious companies. The company emphasizes a culture of continuous learning and innovation, which is reflected in their approach to software development and client engagement.

18. CG-VAK Software USA Inc

• Website: cgvak.com
• Ownership type: Private
• Headquarters: Walnut Creek, California, United States (USA)
• Employee distribution: United States (USA) 69%, India 31%
• Founded year: 1997
• Headcount: 501-1000
• LinkedIn: cg-vak-software-usa-inc

CG-VAK Software USA Inc, established in 1997, is a software development company based in Walnut Creek, California. The firm specializes in a broad spectrum of IT services, including custom software development, e-commerce solutions, and digital marketing. With over 30 years of experience in the industry, CG-VAK has built a reputation for delivering tailored technology solutions to businesses and organizations worldwide. The company operates with a workforce that is predominantly based in the United States, complemented by a significant presence in India, allowing them to provide cost-effective services while maintaining high standards. Their portfolio includes advanced offerings in mobile app development, web application development, and infrastructure management, among others. CG-VAK is also committed to innovation, as evidenced by their focus on artificial intelligence and machine learning solutions, which are increasingly important in today's tech landscape.

19. MindK

• Website: mindk.com
• Ownership type: Private
• Headquarters: San Francisco, California, United States (USA)
• Employee distribution: Ukraine 46%, United States (USA) 25%, Czech Republic 11%, Other 18%
• Founded year: 2009
• Headcount: 51-200
• LinkedIn: mindk

MindK is a San Francisco-based software development company founded in 2009. With a workforce of approximately 113 employees, the company specializes in creating custom software solutions, IT consulting, and team augmentation services. MindK serves various industries, notably Healthcare and Education, where they help clients enhance their digital presence and improve product performance through innovative technology solutions. The company has developed a strong portfolio, having launched over 170 SaaS applications and other software products. Their approach combines design and technology to address real customer problems, ensuring that they meet the specific needs of their clients. MindK's commitment to quality and client satisfaction is reflected in their structured development process and the high level of involvement they maintain throughout projects.

20. Litslink

• Website: litslink.com
• Ownership type: Private
• Headquarters: Palo Alto, California, United States (USA)
• Employee distribution: Ukraine 87%, United States (USA) 8%, Poland 2%, Other 3%
• Founded year: 2014
• Headcount: 201-500
• LinkedIn: litslink

Litslink is a software development company based in Palo Alto, California, founded in 2014. The firm specializes in mobile app development, web development, and artificial intelligence solutions, providing tailored software services to businesses and startups. With a workforce of approximately 195 employees, the company has a significant presence in Ukraine, where 87% of its team is located, alongside smaller offices in the United States and Poland. Litslink has successfully completed over 300 projects for more than 200 clients globally, showcasing their ability to deliver high-quality software solutions across various industries. Their service offerings include advanced technologies such as machine learning, blockchain, and augmented reality, positioning them as a versatile player in the software development market.

Software Development Insights: Key Companies in California

Company	Headquarter	Size	Founded	Ownership
Robosoft Technologies	San Francisco, California, United States (USA)	1001-5000	1996	Corporate
Cyber Infrastructure (CIS)	San Jose, California, United States (USA)	1001-5000	2003	Private
BairesDev	San Francisco, California, United States (USA)	1001-5000	2009	Private
StartupSoft	San Francisco, California, United States (USA)	51-200	2016	Private
Wizeline	San Francisco, California, United States (USA)	1001-5000	2014	Corporate
TechAhead	Agoura Hills, California, United States (USA)	201-500	2009	Private
Uptech	Los Angeles, California, United States (USA)	51-200	2016	Private
Digital Foundry, Inc.	Tiburon, California, United States (USA)	51-200	1992	Private
Nearsoft, Inc	San Jose, California, United States (USA)	201-500	2006	Private
Nextgen Technologies Inc	San Jose, California, United States (USA)	10001+	2003	Private
Svitla Systems, Inc.	Corte Madera, California, United States (USA)	501-1000	2003	Private
Softermii	Los Angeles, California, United States (USA)	51-200	2014	Private
Mev, LLC	Walnut Creek, California, United States (USA)	51-200	2006	Private
Codebay	San Diego, California, United States (USA)	51-200	2014	Private
arkusnexus	San Diego, California, United States (USA)	201-500	2003	Private
EffectiveSoft	San Diego, California, United States (USA)	201-500	2003	Private Equity
Code Power	San Francisco, California, United States (USA)	201-500	2017	Private
CG-VAK Software USA Inc	Walnut Creek, California, United States (USA)	501-1000	1997	Private
MindK	San Francisco, California, United States (USA)	51-200	2009	Private
Litslink	Palo Alto, California, United States (USA)	201-500	2014	Private

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