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 ReviewsEngineering Intelligent Solutions Through Design and Code - Web, Mobile AI, Blockchain
SapientPro builds SaaS, Web3, and AI-driven software, having developed 200+ projects across fintech, eCommerce, and healthcare since 2017. Its team covers everything from smart contracts to ERP development. Best fit for startups and scaleups needing a tech partner for complex product builds...
Top Services:
- AI Development
- eCommerce Development
- Mobile App Development
- Web Design
- Web Development
- Show more
- Location
- San Francisco, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 20 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSapientPro Services
Data sourced from the agency's DesignRush profileZich Solutions Contentoo HEX MasTrack Sprinkle Slab Sharks SalesLogs Piktochart The Big Data Chef Footshop
SapientPro Reviews & Testimonials

Software Development Review from Slava Berkovich
SapientPro consistently delivers high-quality work that aligns with project requirements. The team demonstrates strong expertise in Angular, TypeScript, and JavaScript. Their project management and communication practices are highly effective, with weekly client meetings held to provide updates on progress and ensure alignment.

Software Development Review from Jeremy Ott
This team was extremely responsive from the start. They pulled together a comprehensive quote for my MVP and have delivered on all of the requirements. The daily updates from the product/project manager are extremely helpful and it’s clear that the team cares about the quality of work they deliver. The engineers working on the product are always willing to make recommendations and go above and beyond to make the experience and underlying infrastructure that much better.

eCommerce Development Review from Luc Vlekken
We've had the pleasure of working closely with this development team on several projects, and the experience has been consistently excellent. Not only are they highly skilled developers, but they also think along with us both from a technical and a product/customer perspective. Their proactive attitude, reliability, and ability to translate complex requirements into elegant solutions make them a true partner rather than just a supplier. Highly recommended.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsAI & 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
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsCandour Technolabs Services
Data sourced from the agency's DesignRush profileBlockthree Technologies Borrowland Pinnaclepay Group Limited Vulcan Technologies LLC.
Candour Technolabs Reviews & Testimonials

Blockchain Review from khashayar maleki
I highly recommend working with Candour company. They are extremely professional and reliable. I've been collaborating with them on developing my lending platform, and I'm very satisfied with the experience, especially working with Naresh.
Manoj Dhiman's Review Sourced from Google
As a startup, we needed a team that could turn our vision into a production-ready product quickly. Candour helped us launch our AI-powered app on both iOS and Android. Their project management was incredibly responsive, and they treated our product like their own. The quality of the UI/UX design was particularly impressive. Highly recommend them for any custom software needs.
Avinash's Review Sourced from Google
Smooth experience overall—clear communication, good quality work, and a team you can rely on.What stood out was their commitment and attitude. They stayed engaged and made sure everything worked as expected.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsWe Build Games That Players Love.
Double Coconut is a San Franciscobased boutique game development studio founded in 2012. The agency specializes in full-service game design and co-developmentfrom casual mobile and web titles to casino, mid-core, and Web3 games. Their projects have reached over 5 million players and generated...
Top Services:
- Software Development
- Web Design
- Mobile App Development
- Blockchain
- Show more
- Location
- San Francisco, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 8 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDouble Coconut Services
Data sourced from the agency's DesignRush profileMicrosoft WB Cartoon Network Ellen Degeneres MIT IBM SAP iWin Addicting Games Penn Gaming
AI Power Agency and Development Shop.
Easiio build AI tools called ChatAI. We help our customers with these tools and implemented Large Language Model base AI technologies for their website or business software. Helping our customers do more with less and improve their efficiency. Our rate is very competitive with the help of AI and quality of...
Top Services:
- Web Design
- Web Development
- WordPress Website Design
- AI Development
- Mobile App Development
- Show more
- Location
- Santa Clara, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsEasiio Services
Data sourced from the agency's DesignRush profileSeraph Direct Weee SkyMeta Pfizer EcoSense TheAllStars TechThisOut Neuvition Harsco McDonals
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