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.

United States × California × Outsourcing Software Development × Fashion × Sort by: Avg Hourly Price: Low to High ×Clear Filters
  • We help businesses in building Web, App, Software, and Adapting AI Solutions.

    For enterprise software and mobile app builds, Probey Services delivers end-to-end development across 30+ industries including retail, healthcare, fintech, and logistics. The New York-headquartered firm maintains 11 global branches and a 320-member team specializing in React Native, Flutter, Node.js, Angular...

    Top Services:

    • Mobile App Development
    • Software Development
    • Web Development
    • Web Design
    • WordPress Website Design
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $10/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    94 Projects Listed
  • QualiMatrix Technologies: Always believe in Quality. We are ISO certified - 9001, 27001

    One of the top Cyber Security providers, Web Development Services, App Development Services, UI/UX Services, and Software Testing Services...

    Top Services:

    • Branding
    • Web Design
    • Web Development
    • IoT
    • Software Testing
    • Show more
    Location
    Bakersfield, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $13/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    1 Project Listed
  • Enterprise Grade App & Web Development Services

    At RichestSoft, we don't just build apps; we create seamless digital experiences that automate businesses. As a leading Mobile App and Web Development Company, we partner with visionary companies to bring their ideas to life, blending their vision with our cutting-edge technical expertise to spark future...

    Top Services:

    • Mobile App Development
    • Web Development
    • Software Development
    • Software Testing
    • AI Development
    • Show more
    Location
    San Jose, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $20/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    9 Projects Listed
  • A Canada-Based Mobile App Development Agency for Scalable, Beautiful Apps

    AI-Powered Web & Mobile App Development Company...

    Top Services:

    • Mobile App Development
    • Software Development
    • VR/AR
    • AI Development
    • IoT
    • Show more
    Location
    San Francisco, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $20/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    41 Projects Listed
  • Your Vision. Our Innovation

    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
    • Show more
    Location
    Commerce, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $20/hr
    Portfolios Count
    16 Projects Listed
  • Ai fist design & development company

    ZAAG SYSTEMS delivers scalable web, mobile & AI solutions with sleek design, driving business growth for US startups...

    Top Services:

    • eCommerce Development
    • AI Development
    • Web Development
    • Software Development
    • Web Design
    • Show more
    Location
    Santa Clara, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $20/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    17 Projects Listed
  • Think Partner, Not Agency

    Acquaint Softtech is an Official Laravel Partner with 15+ years of experience in software development. We specialize in Laravel solutions and excel in IT staff augmentation, remote development teams and outsourcing to deliver scalable, best results...

    Top Services:

    • Staff Augmentation
    • IT Services
    • Web Development
    • eCommerce Development
    • Mobile App Development
    • Show more
    Location
    Highland, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $20/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    6 Projects Listed
  • HIGH QUALITY SOFTWARE COMPANY IN VIETNAM

    With over 10 years of expertise, AgileTech Vietnam stands at the forefront of delivering innovative technology solutions across a wide range of industries. Our team of 300+ skilled developers has completed more than 1,000 successful projects, ranging from dynamic startups to large-scale enterprises...

    Top Services:

    • Web Development
    • WordPress Website Design
    • UI/UX Design
    • eCommerce Development
    • Web Design
    • Show more
    Location
    Irvine, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    50 Projects Listed
  • Our Success - Its Your Business Success

    RiseServ provides unique and custom software solutions as web-applications, mobile applications, web-portals for medium and small businesses in US, Canada and Europe. Se stand with US small businesses of all industries, helping them recover from the pandemic and rise their sales to levels higher than ever...

    Top Services:

    • Web Design
    • eCommerce Development
    • Web Development
    • SEO
    • Software Development
    • Show more
    Location
    Newport Beach, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
  • AI-Powered Software Development For a Smarter Future

    Auspicious Soft is a USA-based custom software, web & mobile app development company with 8+ years of experience serving startups, SMEs & enterprises across healthcare, fintech, logistics & more...

    Top Services:

    • Mobile App Development
    • Software Development
    • Web Development
    • Blockchain
    • AI Development
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
  • AI & Blockchain Built for Scale

    Dubai-headquartered technology company specialising in AI, Blockchain, Web & Mobile, and DevOps solutions. 14+ years delivering enterprise-grade digital products for clients across the US, UAE, and UK...

    Top Services:

    • AI Development
    • Blockchain
    • Software Development
    • Web Development
    • Mobile App Development
    • Show more
    Location
    Santa Monica, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $25/hr
    Portfolios Count
    18 Projects Listed
  • Infinite Possibilities in Mobile and Software

    Infiniti Qube is a premier Mobile and Web Development company dedicated to transforming innovative ideas into exceptional digital experiences. We specialize in creating customized solutions that drive business success and enhance user engagement...

    Top Services:

    • Mobile App Development
    • Software Development
    • Cybersecurity
    • Web Development
    • UI/UX Design
    • Show more
    Location
    Anaheim, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Portfolios Count
    2 Projects Listed
  • Innovate, Code, Elevate Transforming Ideas into Reality.

    H.R. Software Solutions Pvt. Ltd. is a leading IT company offering cutting-edge software development, web solutions, and digital marketing services. We specialize in ERP, CRM, mobile app development, and AI-driven solutions for businesses of all sizes. With a customer-centric approach, we deliver innovative...

    Top Services:

    • Software Development
    • Web Development
    • Digital Marketing
    • Mobile App Development
    • Show more
    Location
    Ontario, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $10,000 - $25,000
  • Aiming to Achieve Your Business Goals Through Technology

    Code Genesis is a full-stack development company dedicated to building scalable and secure digital platforms. We combine expertise in cloud, automation, and modern software engineering to create solutions that are both innovative and reliable. Our mission is to deliver technology that not only meets todays...

    Top Services:

    • Mobile App Development
    • Software Development
    • UI/UX Design
    • AI Development
    • DevOps Consulting
    • Show more
    Location
    Santa Clara, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    7 Projects Listed
  • Certified E-Commerce Development Company

    Certified E-Commerce Development Company...

    Top Services:

    • eCommerce Development
    • Web Development
    • IT Services
    • Web Design
    • Mobile App Development
    • Show more
    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
  • Digital Experiences, Websites & Software Built for Business

    Netpace designs and develops websites, digital products, web applications, mobile apps, and custom software for businesses across industries. Our work combines thoughtful UI/UX, modern engineering, scalable technology, and AI capabilities to create digital experiences that are intuitive, functional, and built...

    Top Services:

    • Web Development
    • eCommerce Development
    • Web Design
    • Software Development
    • AI Development
    • Show more
    Location
    San Ramon, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $40/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    5 Projects Listed
  • Innovate, Create, Excel.

    SoftGrid Computers is a prominent custom software development company that excels in blending the latest technologies with well-organized creative work. With a strong focus on understanding client needs and delivering optimal solutions, we strive to be a reliable partner that offers great value for money. Our...

    Top Services:

    • Mobile App Development
    • Web Design
    • Software Development
    • Web Development
    • Reputation Management
    • Show more
    Location
    Santa Monica, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $1,000 - $10,000
  • Built-To-Perform, Immersive Websites

    YouDigiLab is a Web Design Company, where digital innovation meets stunning design. We specialize in crafting customized, responsive websites that captivate and convert...

    Top Services:

    • Web Design
    • Web Development
    • Logo Design
    • Digital Marketing
    • SEO
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    1 Project Listed
  • Apps Solution For Every Nation.

    APPSNATION is the USA's top leading mobile application development company providing multiple Mobile App development services in IOs, Android, IoT, AR/VR, Games app development, Cross-platform, Wearable, eCommerce and much more. Contact Us to boost your Company's potential for next-level excellence...

    Top Services:

    • VR/AR
    • Mobile App Development
    • Wearables
    • Software Development
    • Social Media Marketing
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $50/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    7 Projects Listed
  • Building the Future, Code At A Time

    Ambsan Digital is a full stack company specializing in high-performance web and mobile app development. We transform ideas into scalable digital products, offering end-to-end services from UI/UX design and custom web platforms to native and cross-platform mobile applications. Our expert developers focus on...

    Top Services:

    • Mobile App Development
    • Web Design
    • Web Development
    • Software Development
    • UI/UX Design
    • Show more
    Location
    California City, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    1 Project Listed
  • AI That Transforms Businesses

    Mindera Software Craft specializes in crafting robust IoT solutions through high-performance, scalable software systems. From product development and performance testing to technology consultancy, we provide end-to-end services tailored to your needs...

    Top Services:

    • Software Development
    • Software Testing
    • IoT
    • DevOps Consulting
    • UI/UX Design
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $50,000 & Up
  • Turning Ideas Into Interactive Apps

    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
  • Anmel Transforms_ Digital Success.

    Anmel is proven to boost productivity by up to 60% and efficiency by 45% for startups and enterprises alike. Trusted by businesses globally, Anmel delivers tangible results, driving success and growth in today's competitive market landscape...

    Top Services:

    • AI Development
    • Software Development
    • IT Services
    • Mobile App Development
    • Wearables
    • Show more
    Location
    San Francisco, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $70/hr
    Minimal Budget
    $25,000 - $50,000

The Benefits Of Top Outsourcing Companies In California

Why companies trust DesignRush

Every agency is independently vetted before it can be listed or ranked

1

Identity Check

We verify businesses and reviewer LinkedIn profiles for integrity.

Agencies vetted
130,849+
2

Portfolio Review

We review agency work, case studies, and results to confirm skill.

Applicants rejected
47%
3

Ongoing Audit

We monitor listings regularly; outdated agencies are removed.

Agencies verified
23

Some agencies pay for sponsored placement, clearly labeled and held to the same vetting standards.

See how rankings and monetization work.