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.
Enterprise AI Solutions | Scalable . Flexible. Sustainable
Seasia Infotech is a global AI-powered digital engineering company with 25+ years of experience delivering custom software, AI solutions, cloud applications, mobile apps, and enterprise platforms. We help businesses accelerate innovation, improve efficiency, and drive digital transformation...
Top Services:
- Software Development
- Mobile App Development
- Web Development
- AI Development
- Big Data Analytics
- Show more
- Location
- Emeryville, California
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 65 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSeasia Infotech Services
Data sourced from the agency's DesignRush profileAdani Group Flipkart Harley-Davidson Microsoft MainStreet Equity Corp HDFC Bank Swaraj Innopharma Education Renault Puda
Seasia Infotech Reviews & Testimonials

eCommerce Development Review from cornelia verden
This Company is AMAZING, they are very professional. We hired them to build my website, and they did an EXCELLENT job. They continuously communicated with me during the development phase. If you want a beautiful, well-designed, professional website that has optimum functionabilty, You must go with Seasia Infotech. You can always expect excellent quality services from the professionals at Seasia Infotech.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsLeading the AI Revolution in Healthcare & Enterprise Solutions
Next-Generation AI Development Company - Transforming Ideas into Intelligent RealityDreamSoft4u is pioneering the future of AI-powered software development with cutting-edge Generative AI solutions that deliver measurable business impact...
Top Services:
- Software Development
- Mobile App Development
- Web Development
- IoT
- AI Development
- Show more
- Location
- Corona, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 18 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDreamsoft4u Services
Data sourced from the agency's DesignRush profileWebeDoctor inTouchEMR IcareIntelligence SONDE BetterMind Oncolence CareHalo ChiroSpring MEDSAYS
Dreamsoft4u Reviews & Testimonials

eCommerce Review from Adil Abbas
We were not looking for one specific task to be done. We hired Dreamsoft4u for many different tasks. For our existing platform, some features were to be added. This was one task. Next, we wanted to build our own e-commerce platform for our own products with a crypto-checkout feature. Next, we also wanted to build a prediction platform. Among all the requirements that we had, our major requirement was the e-commerce platform that we needed for our own products. Also, we needed a crypto checkout platform for the same. The design is very minimalistic. Thus, giving a very user-friendly experience. The product will show its USD price and during the checkout, its crypto price will be shown. We have also added some new features to our existing platform. We were able to host the website successfully. The whole project, despite so many things to be done, went smoothly. It was a completely hassle-free experience. The team worked in coordination. We had to stand up calls on a daily basis to discuss the upgrades, improvements and progress. The team at Dreamsoft4u is very flexible to work with. So far, we have not felt the need for any sort of improvement for Dreamsoft4u.

Mobile App Development Review from Dipanjan Chatterjee
We hired Dreamsoft4u to rapidly build an on demand liquor delivery app - that also serves an alcohol marketplace, liquor store locator and a rare source to find alcohol. The product they developed is not just a stereotype on demand delivery mobile app but it is the best liquor store locator and a rare source to find alcohol. Our dream was to build a platform that caters to enterprise customers who are looking to procure alcohol online for events and special uses. We signed a contract with them to develop an on demand liquor delivery app for both Android and iOS platform. We want to build a product that serves as beer finder and alcohol tracker wherein users should be able to shop a wide selection of liquor from multiple local stores in one go. Further, they should also be able to compare prices, deals from the liquor stores nearby their location at fingertips. The most impressive thing about Dreamsoft4u was everything got designed and developed inhouse by experienced developers. We had rough draft of wireframes but they improved it with their designing and added the elements of branding and personality. The app got launched on App Store and Play Store. Since the launch of this version of the app, we have gotten all positive feedback. Not only users are admiring the app design but we are also experiencing good amount of downloads with high user retention. Cant find any areas for improvement , they have been fantastic throughout our journey.

IT Services Review from Toby Cosgrove
We realized that there is a direct correlation between Instagram posts and online sales of our product. Hence, we met Dreamsoft4u with our vision to create a visual planner for Instagram from a designers and editors point of view that boosts and protects any ecommerce brand. The task looks simple but to build such tool is indeed full of complexity and throws challenge. We started with a pleasant kick-off meeting with the account- and project manager to make sure all involved parties are on the same wavelength and inline with our vision. They provided Basecamp, JIRA, Notion, Figma as a collaboration tool for daily communication, questions and updates. Earlier we wanted to develop a planner but they advised us to go ahead with incorporating scheduling feature too which is like an icing on the cake. The product got launched before time and received pretty impressive feedback from our community. Hardly any other development companies can meet deadlines before due time and that too without compromising on quality and impacting on your pockets. Their technical team is active and goes deep into the solutions. The team possess high level of integrity and passion for quality delivery, The product they have developed is launched and we received pretty good response. The impressive facts about them are commitment to delivery, understanding of customer requirements, and quality of development. Cant find any areas for improvement, they have been awesome throughout our journey.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsSuperior Business Solutions
Sigma Software specializes in developing software and is a globally distributed team of more than 2000 skilled IT professionals, spanning 12 countries including the USA, Sweden, UK, Canada, Israel, Singapore, UAE, Australia, Austria, Ukraine, and more. With a track record of over 20 successful years, we take...
Top Services:
- Software Development
- Web Design
- Mobile App Development
- VR/AR
- Business Consulting
- Show more
- Location
- Los Angeles, California
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 14 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSigma Software Services
Data sourced from the agency's DesignRush profileKnorr-Bremse AstraZeneca Volvo Penta SAS Fortum Mindvalley Aol. IGT Viaplay DanAds
Sigma Software Reviews & Testimonials

Software Development Review from Nikita Vershinin
We've partnered with Sigma Software for almost three years, and they proved to be a strong partner with whom we'll keep working. Their adaptability and willingness to get things done are unique, settingthem apart from other providers. Moreover, they demonstrate a strong sense of ownership.

Software Development Review from Michael Meyer
We were so positively surpised and happy about Sigmas services - as usual I might add. It is a pleasure working with their software engineers. After we provided a briefing, the effort estimation came right away. Shortly after the project started we could see first tangible results. The code quality was excellent and comprehensive. Minor feedback was implemented right away. What can I say more: 10 out of 10 points!

Mobile App Development Review from Esther Howard
The client is incredibly happy with Sigma's services and work. It has referred 3 other clients who also say how much they really love the team and process to get set up with the agency. Sigma is a fantastic company with excellent experienced professionals. Its experts care about quality and customer satisfaction, and they operate like the internal team's extension. (Verified via email)
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsMobilize the Future, Faster
LYQX is a dynamic mobile and website development agency based in Ukraine, driven by a passionate team of designers and developers with over five years of experience. Specializing in UX/UI design and software development, the agency brings creativity and expertise to every project, ensuring exceptional results...
Top Services:
- Mobile App Development
- Software Development
- Web Development
- UI/UX Design
- eCommerce Development
- Show more
- Location
- San Francisco, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $49/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 8 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsLYQX Services
Data sourced from the agency's DesignRush profileGolfer TipMe Yonder
LYQX Reviews & Testimonials

UI/UX Design Review from Vas Grygorovych
We partnered with LYQX to design and build the mobile experience for our e-commerce marketplace. We needed a team that could cover the full cycle UX research, UI design, Flutter development for iOS and Android, and backend integration without us having to coordinate several separate vendors. LYQX started by mapping the key marketplace flows for both buyers and sellers: onboarding, product discovery and search, listings, cart and checkout, order tracking, and seller management. They turned this into a clear design system and clickable prototypes, which made it easy for our stakeholders to give feedback before development began. The Flutter build then followed the approved designs closely, and the team integrated payments, notifications, and our existing backend APIs. What we valued most was their product thinking. LYQX did not simply execute tickets they questioned assumptions, suggested simpler flows where our requirements were overcomplicated, and flagged risks early. Communication was consistent, with regular demos and quick responses when priorities shifted. A few integration points took extra iterations because our own API documentation was incomplete, but the team handled it proactively and kept us informed. Overall, LYQX was a reliable, product-minded partner, and we would work with them again.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsTransforming Ideas into Impactful Digital Solutions.
Rivo Agency is a leading custom software development firm dedicated to delivering innovative web and mobile solutions. With a focus on industries like healthcare, e-commerce, and construction, our expert team harnesses the latest technologies to create secure, scalable applications that drive business...
Top Services:
- Web Development
- Mobile App Development
- Software Development
- WordPress Website Design
- eCommerce Development
- Show more
- Location
- Citrus Heights, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $45/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 2 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsRivо Agency Services
Data sourced from the agency's DesignRush profileFuture Generation Construction Best of Remodel Spring Roofing Fresh auto Karma Gear Meda Skyline Energy Haul Cars Odex Saltmine
Rivо Agency Reviews & Testimonials

Software Development Review from Ezekiel Oluwole
We partnered with Rivo Agency to build a custom software solution tailored to our business needs, and the experience was exceptional from start to finish. Their team demonstrated deep technical expertise, strategic thinking, and a clear understanding of our goals, which helped transform a complex set of requirements into a scalable, high-performing application.What impressed us most was their proactive communication, attention to detail, and commitment to delivering quality results on schedule. They consistently provided valuable insights and suggestions that enhanced our original vision, and their agile approach ensured flexibility and responsiveness throughout the development process.The final product exceeded expectations in usability, performance, and reliability, making it a true asset for our business. We highly recommend Rivo Agency to any organization seeking a trusted partner for custom software development.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsProvide IT Solutions.
We are IT company which provides services in various domains like Logistics, Health, e-commerce, etc. We have expert-level knowledge in web development and mobile development, as well as proficient knowledge of latest IOT-based applications using various AWS services...
Top Services:
- Web Design
- eCommerce Development
- Web Development
- DevOps Consulting
- Software Development
- Show more
- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 6 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsiCommuneTech Services
Data sourced from the agency's DesignRush profileNorth Blue Networks Rishta Matrimony Starlinq CarrierRates SKL HotelHub NCAF Vista Shades Champs Chicken JGF
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
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsYourDigiLab Services
Data sourced from the agency's DesignRush profileDealMeCoupon Mostog NYC Ghostwriting Emarzen
YourDigiLab Reviews & Testimonials

Web Development Review from Joanna Bauza
The work was finished in a reasonable time. Although we went past our original deadline, this was expected for a project like this. We also asked for last-minute changes, which added to the delay. The team listened to our feedback, made the changes we needed, and worked with us patiently to get everything right.

Web Development Review from Ahsanul Hasan
The project was completed on time and within budget, and their communication throughout was top-notch. They were always available to answer questions, provide updates, and offer suggestions when needed.

Web Design Review from Lennox Walker
I recently had the pleasure of working with YourDigiLab for our company's website design and development, and I am absolutely thrilled with the outcome. As a team of true experts in the field, they took our vision and transformed it into a stunning, fully functional website that not only looks great but also performs flawlessly.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsAI product studio - agents, automation, computer vision & digital twins, shipped to production.
Waveo is an AI product studio in Irvine, CA. We design, build, and ship production AI for operations-heavy companies without an in-house AI team: AI agents and automation, computer vision, digital twins and IoT, and predictive AI. Idea to production in weeks. Real engineering, not no-code. Clients own the...
Top Services:
- AI Development
- Software Development
- IoT
- Mobile App Development
- Big Data Analytics
- Show more
- Location
- Irvine, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $125/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 5 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsWaveo Services
Data sourced from the agency's DesignRush profileConfidential — Logistics Confidential — HealthTech Confidential — Automotive
GO-TO Digital Transformation Partner
AQe Digital specializes in enterprise software engineering and digital transformation. With 25+ years of experience, we deliver custom development, cloud-native ERP, AI/ML, RPA, IoT, UX/UI, and integrations that modernize systems and streamline operations...
Top Services:
- Software Development
- Mobile App Development
- Branding
- Product Design
- AI Development
- Show more
- Location
- Los Angeles, California
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAQe Digital Services
Data sourced from the agency's DesignRush profileColumbia Books and Information Services EasyExport Inteserra Ritek System Toll Brothers OSHO World Bank Group The Refinery
AQe Digital Reviews & Testimonials

Software Development Review from Vladyslav Sorochan
A true tech partner who just gets it! Aqe has brought our rough software concept to life and turned it into a smart platform. The project covered everything from custom development to AI features and some pretty advanced data engineering. From the beginning, their team really took the time to understand what we were trying to achieve. They started with a clear discovery phase and built a solution that checked all the boxes in terms of functionality and ease of use.It is easy to work with their team, not only in terms of technical skills but also in how responsive and collaborative they are. They regularly improved features based on our feedback as we moved along and were always available when we needed support, even after the post-launch. Having that kind of ongoing help made a big difference.The results were a bit better than we expected. We saw a noticeable drop in manual work, smoother internal operations, and improved decision-making through real-time data.Overall, Aqe and their team really delivered what they promised, on time and within our budget. The whole experience was smooth, professional, and well-managed. Wed happily recommend working with them.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsConsulting That Multiplies Your Success
WGS2D is a boutique business and technology consulting firm built by experienced leaders from top-tier firms. We're known for moving fast, delivering real outcomes, and putting the client first always. What sets us apart is how we execute. We don't just advise; we own results. Our Say/Do ratio is 100%. if we...
Top Services:
- Managed Services
- Cloud Consulting
- IT Services
- DevOps Consulting
- Cybersecurity
- Show more
- Location
- Oakland, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsWGS2D Consulting Services
Data sourced from the agency's DesignRush profileSoftware & IT Services Industry Professional Services Industry Finance Industry
AI-driven custom software development for complex, high-growth industries.
NEKLO is an international custom software development partner. Since 2008, weve specialized in building and scaling digital products for high-stakes industries, including Healthcare, Fintech, Energy, and Construction...
Top Services:
- AI Development
- Software Development
- Mobile App Development
- Product Design
- Software Testing
- Show more
- Location
- Burlingame, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 4 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsNEKLO Services
Data sourced from the agency's DesignRush profileLulu and Georgia Raken Planet Blue Belleze My1stYears JustBeeKids Complete Solar Call Loop Implentio TeamDays
Your Trusted Partner for Outsourcing IT Projects
TPLEX is a software outsourcing company. We provide companies with top tech talent and product development expertise...
Top Services:
- AI Development
- Software Development
- Staff Augmentation
- Managed Services
- Cloud Consulting
- Show more
- Location
- Los Angeles, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 2 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsTplex Services
Data sourced from the agency's DesignRush profileCrossover Global Martial Arts University PatientStudio Pathomation SimpleTix Seellution Snipp Interactive Inc Rithm Capital
Big Ideas Start with SunerGarcia.
We are SunerGarcia. We are an innovative digital marketing agency that focuses on building around technology and consumer experience. We build exciting brand experiences for our clients. Our team is a fine assortment of movers and shakers, creatives, designers, planners, tech enthusiast, and all around hard...
Top Services:
- Web Design
- Web Development
- SEO
- PPC
- Software Development
- Show more
- Location
- San Diego, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $1,000 - $10,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSunerGarcia Services
Data sourced from the agency's DesignRush profileUniversity of California San Diego ProKennex Los Tucanes de Tijuana Mr Tempo Gaslamp San Diego Lyft Anheuser-Busch Pro Studio Live Metal Etch Services Inc Bang & Olufsen
Global Web Development & Digital Marketing Experts
DS Technologies is a global web design, development, and digital marketing agency. We specialize in creating innovative, custom solutions that drive measurable results. With expertise in SEO, UI/UX, and scalable web applications, we help businesses worldwide grow their digital presence and achieve sustainable...
Top Services:
- Graphic Design
- Web Design
- eCommerce Development
- Web Development
- UI/UX Design
- Show more
- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDS Technologies (Pvt.) Limited Services
Data sourced from the agency's DesignRush profilePlantX Life Inc Bodno Bloombox Club Extra Logistics LLC LQR House Inc Aruna Oakey Assisted Living Nursey Foundation Bevage Cryptos Beginner
DS Technologies (Pvt.) Limited Reviews & Testimonials
Rimsha Rasheed's Review Sourced from Google
Working with DS Technologies Pvt Ltd. has been an incredible journey from start to finish. Their team stands out for their deep expertise and impressive skill set, ensuring every aspect of the project was handled with precision and care. From the initial consultation to the final stages of execution, they took the time to walk me through each step, addressing my concerns and providing valuable insights along the way. The attention to detail and commitment to excellence were apparent throughout the entire process. The final product not only met my expectations but exceeded them in every way. Their dedication to delivering top-quality results is truly commendable, and I couldn’t be more pleased with the outcome. It’s been a pleasure working with such a professional and talented team.
AB Rehman's Review Sourced from Google
I was truly impressed by the value DS Technologies Pvt Ltd. provides. Their prices are highly competitive, and the quality of their work surpassed my expectations. If you're seeking exceptional service at a reasonable price, you don't need to look any further!
Zain Ali's Review Sourced from Google
I had an excellent experience working with DS Technologies (Pvt.) Limited. They exceeded my expectations in every aspect of web development, from design to execution. Their team is highly skilled and knowledgeable, particularly when it comes to tech stack or expertise, like Shopify, WordPress, React, etc.What really stood out was their attention to detail and commitment to meeting deadlines. They took the time to understand my vision and transformed it into a fully functional, responsive, and visually stunning website. Every aspect of the site, from layout to navigation, feels professional and polished.Their communication throughout the project was seamless—providing regular updates, incorporating feedback quickly, and offering suggestions that elevated the final product. They were also transparent about pricing and timelines, which made the whole process stress-free.The project management was equally impressive. Despite a few unforeseen challenges, they adapted swiftly and maintained high-quality standards, ensuring the project stayed on track.Overall, I highly recommend DS Technologies (Pvt.) Limitedto anyone looking for a professional web development team. They’re innovative, reliable, and truly dedicated to client satisfaction!
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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