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Top Software Development Companies in California | September, 2026

Are you searching for top software development companies in California to maximize your ROI and streamline business operations?

The process of selecting a software company with a good track record can be overwhelming and time-consuming in California. Sometimes the vetting process can take months before you find a provider that meets your requirements.

What if you get a researched list of companies known in the California software industry for their quality, product delivery, verified reviews as well as ratings?

Check out the trusted list of companies based in California for your custom software needs prepared by RightFirms.

Last updated: Sep 28, 2026

List of Top Software Development Companies in California | Top Software Developers in California | Hire Software Developers in California
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IoT IT Data Analytics Web Mobile Cloud

3.7★★★★★3.7 / 5
Employees51 to 250
Avg. hourly rate< $25 /hr
Focus AreaSoftware Development
LocationUSA

IT/IoT/Data Analytics: Web App Development, Mobility & Reality App Development, Chatbot Development, Device-to-Cloud Connectivity, Cloud Computing, Artificial Intelligence, Machine Learning, Mobility Solutions & Services, Remote Device Management Platform, Big Data Analytics.Read More About Optimized Technologies Inc.

Peiko
RightFirms reviewed this company’s profile, work, reviews, clientele, and public trust signals.

AI | Web3 Development | Blockchain solutions | Web & Mobile

5.0★★★★★5.0 / 5(16 reviews)
Online
Employees51 to 250
Avg. hourly rate$26 - $50 /hr
Focus AreaSoftware Development
LocationEstonia, USA

We have been providing startups and big brands with the opportunity to develop and achieve good results, to get additional profit with the help of technological solutions and business tools developed by our company. Our services: • Blockchain solutions • AI Development • Web3 Experts • Web & Mobile Development • Discovery Phase in 2-5 weeks • UI/UX Design • MVP for startups • Staff Augmentation Contact us at hello@peiko.space to discuss your project!Read More About Peiko

5.0

“Strategic Engineering and Product Mastery in RWA Tokenization”

Sebastian MillerVerified review
Cleveroad
RightFirms reviewed this company’s profile, work, reviews, clientele, and public trust signals.

Web and Mobile apps, Machine Learning, IoT

4.7★★★★★4.7 / 5(6 reviews)
Online
Employees51 to 250
Avg. hourly rate$26 - $50 /hr
Focus AreaSoftware Development
LocationUSA, Ukraine

Cleveroad is an ambitious Mobile and Web development company providing services for business segments, audacious startups, and private clients. We do know how IT world functions and are aimed to deliver top notch products based on the broad experience of our Senior IT profs & fresh insight of IT world by our Interns. Cleveroad team does care about the final outcome and help customers to smoothly hit it off and is always intended for productive long-term business relationship.Read More About Cleveroad

4.8

“Digital Operations Hub for E-Commerce Company”

Ben GarrunVerified review

Unlock Your Digital Potential with Techinfini

4.0★★★★★4.0 / 5
Employees51 to 250
Avg. hourly rate$26 - $50 /hr
Focus AreaSoftware Development
LocationIndia

With a wealth of experience spanning over 15 years, serving 2K+ clients in more than 20 countries, and boasting a team of 110+ experts we specialize in streamlining, optimizing, and automating business processes. We are here to resolve all your software development needs.Read More About Techinfini Solutions pvt ltd

Reliable Development Partner to Empower your Business

4.0★★★★★4.0 / 5
Employees51 to 250
Avg. hourly rate< $25 /hr
Focus AreaSoftware Development
LocationUSA, India

Web Infotech is a leading web, mobile app, and AI development company that helps businesses turn complex ideas into practical digital products. Backed by 10+ years of experience, 100+ IT professionals, and a strong client retention rate, the company partners with startups, SMBs, and enterprise teams across the globe to deliver solutions that are practical, scalable, and built for real-world use.Read More About WPWeb Infotech

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