Our analysts identified the top outsourcing software development companies in California providing cutting-edge services that answer key business problems, from building technical software, designing websites or mobile apps to integrating operating systems and more. Narrow down your search by team size, budget, reviews and more to select the best developer for your company’s needs.
Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.
Koderspedia is a Palo Alto-based software outsourcing company specializing in mobile app development for iOS and Android, custom web solutions, and UI/UX design. The team delivers work across platforms including React Native, Flutter, Node.js, and WordPress, with portfolio projects spanning eCommerce, real...
Top Services:
- Web Design
- Web Development
- Mobile App Development
- Software Development
- Logo Design
- Show more
- Location
- Palo Alto, California
- Number of Employees
- Under 49
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 13 Projects Listed
We don't just build apps. We build app businesses that actually succeed, where 80% fail within their first year. For 17 years we've perfected what actually works, having launched 300+ successful apps, including one that hit 4+ million downloads in just 60 days with sub-$3 user acquisition...
Top Services:
- Mobile App Development
- Web Development
- Software Development
- eCommerce Development
- UI/UX Design
- Show more
- Location
- San Francisco, California
- Number of Employees
- 100 - 249
- Portfolios Count
- 27 Projects Listed
Founded in 2009 by Nacho de Marco and Paul Azorín, BairesDev provides top 1% tech talent to a range of clients, from startups to Fortune 500 companies...
Top Services:
- Software Development
- Web Development
- UI/UX Design
- Mobile App Development
- Software Testing
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- Location
- San Francisco, California
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 5 Projects Listed
Dev Technosys is an ISO9001:2015-certified software development company founded in 2010, offering comprehensive IT solutions including custom web and mobile development, IoT, ERP/CRM, on-demand apps, and e-commerce platforms. The firm delivers tailored engineering services to clients in over 70 countries...
Top Services:
- Mobile App Development
- Software Development
- IoT
- AI Development
- Blockchain
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- Location
- Commerce, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $20/hr
- Portfolios Count
- 16 Projects Listed
When startups and enterprise clients need scalable custom software without building in-house teams, Trango Tech delivers web apps, mobile solutions, and eCommerce platforms backed by more than 200 developers averaging ten years of experience. The San Jose agency works in Java, Angular, React Native, .Net, and...
Top Services:
- Software Development
- Mobile App Development
- eCommerce Development
- AI Development
- Web Design
- Show more
- Location
- San Jose, California
- Number of Employees
- 100 - 249
- Portfolios Count
- 17 Projects Listed
Certified E-Commerce Development Company...
Top Services:
- eCommerce Development
- Web Development
- IT Services
- Web Design
- Mobile App Development
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- Location
- San Francisco, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 16 Projects Listed
AppCrops is a next-gen technology partner delivering end-to-end digital solutions for startups and enterprises. From interactive user-friendly iOS, Android or Custom Mobile applications to Web apps, ERP systems and custom software, we help transform ideas into high-performing digital products...
Top Services:
- Mobile App Development
- Web Development
- eCommerce Development
- Software Development
- Web Design
- Show more
- Location
- Los Angeles, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 4 Projects Listed
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