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.

United States × California ×
  • Transform Fast: Your App on iOS & Android Awaits!

    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...

    Location
    Palo Alto, California
    Number of Employees
    Under 49
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    13 Projects Listed

    Koderspedia Services

    • Web Design
    • Web Development
    • Mobile App Development
    • Software Development
    • Logo Design
    • WordPress Website Design
    • eCommerce Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • The ALS Guide
    • Accenture
    • Stadis
    • EventBuddy
    • Teachers DIrect
    • Munich Re
    • Comcast
    • ViacomCBS
    • intel
    • Coca*Cola
    Data sourced from the agency's DesignRush profile

    Koderspedia Reviews & Testimonials

    • Jason Troyan
      Jason Troyan Real Estate Broker at Live Florida Realty
      5.0

      Web Development Review from Jason Troyan

      We discovered Koderspedia through an online search, and it turned out to be one of the best decisions we've made for our real estate company's web development!The team at Koderspedia, particularly Peter, demonstrated exceptional professionalism, expertise, and dedication to delivering top-notch results. Peter's communication skills are outstanding- he was always available, responsive, and ensured we were on the same page throughout the project.The final product exceeded our expectations- a stunning, user-friendly, and highly functional website that perfectly represents our brand. Koderspedia's attention to detail, creativity, and technical prowess are truly impressive.We wholeheartedly recommend their services and appreciate the fantastic work they've done for us!Thank you, Peter and the Koderspedia team!

    • Nina Di Carlo
      Nina Di Carlo Managing Director at Guards Real Estate
      5.0

      Web Design Review from Nina Di Carlo

      Koderspedia' work was easy to implement, and we saw a 95% increase in sales and traffic after the site's launch. The Peter and the team communicated well and provided constant updates throughout. Their web design expertise and strong project ownership made for a fruitful engagement.

    • Betty Rodrigues
      Betty Rodrigues Regional HR Manager at Gameloft Montreal
      5.0

      Web Development Review from Betty Rodrigues

      Koderspedia delivered an exceptional web app for Gamesoft Montreal Company! Their team, led by Peter, showcased outstanding expertise and communication skills. Peter's prompt responses and clear updates ensured a seamless project experience. The final product exceeded our expectations- visually stunning, functional, and secure. Highly recommend Kordespedia for web app development!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Turning App Ideas Into App Businesses Since 2007

    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...

    Location
    San Francisco, California
    Number of Employees
    100 - 249
    Portfolios Count
    27 Projects Listed

    Dedicated Developers Services

    • Mobile App Development
    • Web Development
    • Software Development
    • eCommerce Development
    • UI/UX Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Audvisor Mobile Apps
    • Parsons Roofing
    • ProHealth
    Data sourced from the agency's DesignRush profile

    Dedicated Developers Reviews & Testimonials

    • Robert Miller
      Robert Miller Founder & CTO at Education Technology Company
      5.0

      Mobile App Development Review from Robert Miller

      I lost over $125,000 to developers who couldn't deliver so when I came to Dedicated Developers, I wasn't just looking for a dev shop, I was looking for a reason to trust again. They earned it fast. Their Idea To App Blueprint took everything scattered in my head and turned it into a clear, structured roadmap that actually made sense. Within six months, they delivered a sleek, fully functional MVP for our AI-powered homework assistant something a previous team couldn't pull off in over a year. What really set them apart was how early they brought in their ASO experts not as an afterthought, but from day one because they weren't just thinking about building an app, they were thinking about setting us up for a strong launch.Every deadline was met. Every question was answered. Every milestone felt like a shared win. As we approach launch, I can already see the difference a truly invested team makes the foundation is solid, the product is polished, and we're going to market with confidence we never had before. Dedicated Developers didn't treat this like a contract they treated it like a mission. After everything we went through before finding them, that meant everything. If you're serious about bringing your app idea to life and you're done gambling on the wrong team, this is the partnership that will change the trajectory of your product.

    • Ben Connors
      Ben Connors CEO at Dating App Company
      5.0

      Mobile App Development Review from Ben Connors

      As CEO of a relationship-focused mobile app company, I partnered with Dedicated Developers to build a dating platform centered on meaningful, long-term connections not casual swiping. I needed a true full-cycle partner, and they delivered. Before development began, they invested time in understanding the vision and created detailed product blueprints. They asked thoughtful questions, challenged assumptions, and scoped each phase carefully, ensuring smooth execution as the platform expanded. Their cross-functional team project manager, developer, UI/UX designer, QA specialist, and app store marketing expert consistently delivered milestones on time and handled complex feature requests with structure and clarity.Since launch, the app has achieved steady download growth, strong engagement and retention, and positive app store ratings a testament to the scalable, high-quality foundation they built. What stood out most was their true product-level ownership. They didn't just execute specs they contributed ideas, challenged assumptions, and helped refine decisions I hadn't fully considered. Their detailed blueprinting before each phase created clarity and saved significant time in execution. They treated the platform like their own product, and that mindset made a meaningful difference throughout a long, evolving engagement.

    • Akshath Goyal
      Akshath Goyal Board Advisor, Tech/ Fintech at Fintech Startup
      5.0

      Mobile App Development Review from Akshath Goyal

      As an advisor to a fintech startup, I've seen firsthand how Dedicated Developers operate at a level beyond typical vendors they truly act as product partners. They successfully architected and built a complex mobile platform combining social media and secure peer-to-peer payments, handling everything from blueprinting to post-launch optimization with strong ownership and technical depth. The result speaks for itself: over 1 million downloads, well received 5-star reviews, and a scalable, compliance-ready foundation. Their disciplined execution, transparency, and long-term thinking make them a valuable partner for any ambitious fintech venture.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • 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...

    Location
    Commerce, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $20/hr
    Portfolios Count
    16 Projects Listed

    Dev Technosys Services

    • Mobile App Development
    • Software Development
    • Web Development
    • Web Design
    • eCommerce Development
    • Blockchain
    • AI Development
    • IoT
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Nike
    • johnson and johnson
    • Handy
    • Whirlpool
    • RAX Ceramics
    • pfizer
    • Jardines
    Data sourced from the agency's DesignRush profile

    Dev Technosys Reviews & Testimonials

    • Patrick Gilbert
      Patrick Gilbert CEO at quicklyheal
      5.0

      Mobile App Development Review from Patrick Gilbert

      The UX and development work provided by Dev Technosys has helped to establish this new company. The apps aren’t live yet, but all four prototypes will be developed and launched. Senior internal stakeholders were pleased with Dev Technosys’s high-caliber deliverables. Flexible, receptive, and accommodating. Dev Technosys took great care in building a quality platform that fits all requirements.

    • Delson Baker
      Delson Baker CEO at Tutorias.co
      5.0

      Mobile App Development Review from Delson Baker

      The app is almost going to live and has been very useful throughout the COVID-19 pandemic. Dev Technosys did an excellent job enhancing the look and feel of the platform. They brought several ideas to the project and were flexible as requirements changed.We worked closely with one of their lead project managers and he liaised with the developers and creative team on the UI aspect. He did a fantastic job scheduling meetings between our team and the design team when needed. He also helped us com

    • Kenneth Wilson
      Kenneth Wilson CEO at Learning bull
      5.0

      Mobile App Development Review from Kenneth Wilson

      Dev Technosys's efforts have had a significant impact on the business overall, streamlining the video process by making it easier to find exactly what user wat to see. Project is all about the learning via videos. In addition to the quality of their designs, their team is also very proactive and collaborative to work with overall. Though not yet complete, their work surpasses all expectations and project management has been seamless.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Software Outsourcing & Development | 500+ Active Clients

    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...

    Location
    San Francisco, California
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    5 Projects Listed

    BairesDev Services

    • Software Development
    • Web Development
    • UI/UX Design
    • Mobile App Development
    • Software Testing
    • Web Design
    • Staff Augmentation
    • Product Design
    • ERP Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Google
    • Salesforce
    • IBM
    • Autodesk
    • Rolls-Royce
    • SiriuXM
    • Motorola
    • Burger King
    • Chime
    Data sourced from the agency's DesignRush profile

    BairesDev Reviews & Testimonials

    • Undisclosed
      Undisclosed Director of e-commerce solutions at URBN
      5.0

      Web Development Review from Undisclosed

      We were truly impressed by the BairesDev team's expertise, work ethic, and eagerness to learn. The agency quickly adapted to our corporate culture and integrated seamlessly. When tasked to work on a new platform, it provided solutions within a week. It's like the software version of a versatile and powerful utility infielder.

    • Undisclosed
      Undisclosed Engineering Manager at Pinterest
      5.0

      Staff Augmentation Review from Undisclosed

      BairesDev engineers are the soul of the team. They’re able to identify dependencies and figure out solutions quickly. They strongly exceeded my expectations.

    • Undisclosed
      Undisclosed Team Leader at Avigilon
      5.0

      Web Development Review from Undisclosed

      Following consultations with the BairesDev team, we recognized that the primary objective was to localize the system and concentrate on enhancing the UI, while also upgrading tools to uphold a high-performance analytics system. Witnessing its expertise and ability to address specific issues greatly alleviated our security platform's primary concerns.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Driving Change Through Technology - Apps, Ecommerce, Staff Aug, BPO, Next Gen Tech and more!

    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...

    Location
    San Jose, California
    Number of Employees
    100 - 249
    Portfolios Count
    17 Projects Listed

    Trango Tech Services

    • Software Development
    • Mobile App Development
    • eCommerce Development
    • AI Development
    • Web Design
    • CRM Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Khaity
    • Shifaam
    • KIA
    • Click N Kollect
    • Helpp
    • Matchbox
    • OAKS
    Data sourced from the agency's DesignRush profile

    Trango Tech Reviews & Testimonials

    • Ashleigh J. Shim
      Ashleigh J. Shim Founder at Barefoot Player
      5.0

      Mobile App Development Review from Ashleigh J. Shim

      Jane Miller and her team at Trango Tech have been phenomenal. They design a detailed and curated plan for your app design and development. I liked that Jane always made herself available to ensure the success of our company's app. Thank you Jane!

    • Fren D. Garcia
      Fren D. Garcia Procurement Manager at ClicknCollect
      4.8

      Mobile App Development Review from Fren D. Garcia

      Had a fantastic experience working with Trango Tech for our eCom & app development needs. Their expertise in creating scalable and customized online stores was evident from the beginning. They provided valuable insights and suggestions that significantly improved my website's functionality and user experience. The Trango Tech team was responsive, communicative, and dedicated to meeting our specific needs. I'm thrilled with the end result and would highly recommend Trango Tech to anyone.

    • David V. Ringer
      David V. Ringer Marketing Manager at Helpp
      4.8

      Mobile App Development Review from David V. Ringer

      The team at Trango Tech was very communicative and kept me informed throughout the entire development process. They provided regular updates on the progress of the project and were always available to answer any questions I had. They were very patient with my requests and made sure that my requirements were met to my satisfaction.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Certified E-Commerce Development Company

    Certified E-Commerce Development Company...

    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

    Dinarys Services

    • eCommerce Development
    • Web Development
    • IT Services
    • Web Design
    • Mobile App Development
    • Staff Augmentation
    • Digital Strategy
    • Digital Services
    • Software Development
    • IoT
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Aroma Kava
    • LastBid
    • Budu Sushi
    • Magento 2 Migration
    • Rite Space
    • Bookbreakrs
    • Can
    • Vivat
    • Udifo
    • ServisBook
    Data sourced from the agency's DesignRush profile

    Dinarys Reviews & Testimonials

    • André Schörnig
      André Schörnig Marketing-Manager at myfelt GMBH
      5.0

      eCommerce Development Review from André Schörnig

      We have been working with Dinarys on our Shopify store for quite some time, and the experience has been great. From the very beginning, communication was clear, efficient, and reliable. The Dinarys team consistently delivered detailed proposals, stuck to agreed timelines, and offered well-structured solutions tailored to our needs. Their technical expertise is impressive, but what really sets them apart is their proactive attitude and genuine commitment to our project. Whenever we had questions or changes, they responded quickly and constructively. Its a true pleasure to work with a partner who feels like an extension of our own team. Highly recommended!

    • Nissrine Kohen
      Nissrine Kohen Sr. Backend Shopware Developers at H1 Webdevelopment
      4.5

      Web Development Review from Nissrine Kohen

      Weve been working with Dinarys for quite some time now, mainly collaborating on Magento and Shopware development projects. Their developers consistently show solid technical expertise and a good understanding of our expectations and workflow.Communication is generally smooth, and response times are quick. Whenever issues arise, the team is open to feedback and acts quickly to improve. Over time, weve seen a positive evolution in their proactiveness and alignment with our teams way of working.They are flexible and collaborative, and its clear that they genuinely aim to build long-term partnerships. For the quality delivered, we feel the pricing is fair and transparent.All in all, weve been satisfied with our cooperation and would recommend Dinarys as a development partner, especially for companies looking for experienced backend developers in Magento and Shopware.

    • Andrew White
      Andrew White Review from Google
      5.0

      Andrew White's Review Sourced from Google

      I'm wasn't in the German office, but i had experience of communication with this company! I can say that it leaves the warmest feelings in the my heart! Guys you are the best!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • 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...

    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

    AppCrops Services

    • Mobile App Development
    • Web Development
    • eCommerce Development
    • Software Development
    • Web Design
    • UI/UX Design
    • IoT
    • Blockchain
    • AI Development
    • Digital Marketing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • FluoSpeak
    • Sellers Route
    • Muslim Me
    • Linkedly
    • Stryde
    • Planzee
    • TRP Mobile
    Data sourced from the agency's DesignRush profile

    AppCrops Reviews & Testimonials

    • Nabula Warden
      Nabula Warden Review from Google
      5.0

      Nabula Warden's Review Sourced from Google

      AppCrops built a CMS for us that easily integrated with our website. Easy to manage and flexible. It made content updates much simpler. Recommended group of developers 👍

    • Reverie Selah
      Reverie Selah Review from Google
      5.0

      Reverie Selah's Review Sourced from Google

      We used AppCrops for web development services and the result exceeded expectations. The website is fast, modern, and aligns perfectly with our brand.

    • Hazel Lucas
      Hazel Lucas Review from Google
      5.0

      Hazel Lucas's Review Sourced from Google

      We worked with AppCrops for mobile app development and had a great experience. The team was professional, responsive, and delivered a high-quality app for our business. Highly recommended for anyone looking for web or app development services.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • 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...

    Location
    Ontario, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $10,000 - $25,000

    H.R Software Solutions Pvt. Ltd. Services

    • Software Development
    • Web Development
    • Digital Marketing
    • Mobile App Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Maddares
    • Riyadh Rehab
    • Taaheel
    • Salec
    • Enriched Academy
    • IOCL
    • Indian Railway
    • EDCIL
    • Noida Authority
    • BLK Hospital
    Data sourced from the agency's DesignRush profile
  • Grow with Technology.

    We have a Team of 100+ Skilled App Developers who thrive on rolling up their sleeves and solving your IT problems and meeting your business needs like APP Development, Software Development, Cloud Consulting, Generative AI Development, Cyber Security Services, Custom ERP Software Development, and Web...

    Location
    Irvine, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000

    NextOlive Services

    • AI Development
    • Mobile App Development
    • Software Development
    • Blockchain
    • Software Testing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • TrulyMadly
    • theDevMasters
    • OpusClip
    • DP World
    • Bettor In Green
    Data sourced from the agency's DesignRush profile

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