Top Blockchain Development Companies in California
Goodfirms has reviewed 163 Blockchain Development Companies in California as of September 2026. The top-ranked firm is Probey Services (5.0 stars, 122 verified reviews, < $25/hr, founded 2016, San Francisco). Across the category, the median hourly rate is $37, median client rating is 4.7, and 47% of firms employ 50+ members. Explore the vetted Blockchain Development Companies in California below, compare their strengths, and connect with the provider best suited to your requirements.
Are you looking for top blockchain development services in California? Explore California's curated list of blockchain development companies with verified reviews and ratings. Blockchain innovation has brought some mind-blowing advantages concerning digital transactions and has even given birth to popular cryptocurrencies like Bitcoin and Ethereum. Transparency of data related to monetary exchanges, the absence of third parties, faster and cheaper means of financial exchanges, and high security through cryptography are a few features that have caught the attention of developers around the world. Need this tech for your business? Goodfirms intends to assist you with a list of the best blockchain development companies in California below:
Goodfirms has verified 163 Blockchain Development Companies in California - part of 3,247+ Blockchain Development Companies, each passing Goodfirms' 4-step verification process (background check, client interviews, portfolio audit, ongoing quality review). Listings marked "Sponsored" are agencies that pay for premium placement - sponsorship does not affect star ratings or review content.
Top 10 at Glance
Compare the highest-ranked firms first side by side.
List of Top California Blockchain Developers & Companies
Sponsored
VetsEZ is a digital services firm with expertise in the rapid delivery of modern, user-centric, and data-driven digital solutions that helps the federal government serve our people better. We accelerate the missions of our federal partners through human-centered design (HCD), DevSecOps practices, and automation by leveraging the power of artificial intelligence, machine learning, and cloud ... read VetsEZ reviews & insights
VetsEZ is a digital services firm with expertise in the rapid delivery of modern, user-centric, ... read VetsEZ reviews & insights
$50 - $99/hr250 - 9992012San Diego, United States
CBQA Solutions is a global technology service company specializing in developing cutting-edge Applications, Automation frameworks, infrastructures, and QA processes for Cloud-Based Software, Mobile, Voice, Switching, Routing, Network Management, Wireless Gaming, and Blockchain. We are AWS and Salesforce Partners.
CBQA Solutions is a global technology service company specializing in developing cutting-edge Applications, Automation frameworks, ... read CBQA Solutions, INC reviews & insights
$25 - $49/hr50 - 2492015Pleasanton, United States
BitGo is a digital asset company that helps people and businesses safely store, manage, and use cryptocurrencies. It provides secure wallets, custody services, and financial tools designed mainly for institutions. With a strong focus on security and trust, BitGo makes it easier for clients to handle crypto transactions and protect their digital wealth in a ... read Bitgo reviews & insights
BitGo is a digital asset company that helps people and businesses safely store, manage, and ... read Bitgo reviews & insights
$100 - $149/hr250 - 9992013Palo Alto, United StatesWhy Bitgo?
- Industry-Leading Security
- Institutional-Grade Infrastructure
- All-in-One Platform
Using AI Tools
Claude
GitHub Copilot
Cursor
CodeXpace helps businesses build scalable SaaS platforms, AI-powered systems, and custom software that improve efficiency, automate operations, and support long-term growth. We specialize in Python-based development, AI integrations, and full-cycle product engineering, delivering web, mobile, ERP, and enterprise solutions designed for real-world performance. Our systems are built to handle complex workflows, reduce manual processes, and ... read CODEXPACE LLC reviews & insights
CodeXpace helps businesses build scalable SaaS platforms, AI-powered systems, and custom software that improve efficiency, ... read CODEXPACE LLC reviews & insights
$50 - $99/hr10 - 492021American Canyon, United StatesWhy CODEXPACE LLC?
- Scalable and high-performance solutions
- Transparent process, reliable outcomes
- Reliable delivery with measurable outcomes
Using AI Tools
- GitHub Copilot
Midjourney
CloneAppz is a leading white label and clone app development company helping startups and enterprises launch scalable on-demand mobile and web solutions. We specialize in ready-made and custom app development for industries like taxi booking, food delivery, grocery delivery, fintech, healthcare, and multi-service platforms. Our expert team delivers high-performance iOS, Android, and web applications with ... read CloneAppz reviews & insights
CloneAppz is a leading white label and clone app development company helping startups and enterprises ... read CloneAppz reviews & insights
< $25/hr10 - 492021San Francisco, United StatesWhy CloneAppz?
- Fast scalable app solutions tailored to your need.
- Fully customizable apps with reliable support.
- Cost-effective development with proven results.
Transform Enterprise IT Solve business challenges with our focus on people, processes, and technology STAND 8 is a trusted IT services and solutions technology partner to the world's largest enterprises with offices throughout United States and the world.
Transform Enterprise IT Solve business challenges with our focus on people, processes, and technology STAND ... read Stand 8 reviews & insights
NA50 - 2492009Morro Bay, United States
Mobile Programming LLC was started with the mission to provide “Economic as well as Efficient” software solutions. We firmly believe in the credibility and scalability of Digital Transformation. Our services are focused on Mobility Solutions, Custom App Development, Cloud Solutions, IoT, AR/VR, Metaverse, Blockchain, Artificial Intelligence & Machine Learning, Chatbot, Predictive Analytics & Big Data ... read Mobile Programming reviews & insights
Mobile Programming LLC was started with the mission to provide “Economic as well as Efficient” ... read Mobile Programming reviews & insights
NA1,000 - 9,9992001Los Angeles, United States
AdultSEM is a specialized adult marketing agency focused on helping adult businesses improve their online visibility, attract qualified traffic, and generate sustainable growth. We understand that marketing in the adult industry comes with unique search, advertising, competition, and compliance challenges. Our strategies are built specifically for adult businesses rather than adapting traditional marketing approaches designed ... read Adultsem reviews & insights
AdultSEM is a specialized adult marketing agency focused on helping adult businesses improve their online ... read Adultsem reviews & insights
$50 - $99/hr10 - 492014San Diego, United States
eZoom is your one stop shop to help you develop your idea, design and develop your App as well as publish and market your app so that it can be noticed in a crowded world of Mobile Apps. Our years of digital marketing experience makes us a unique partner that can put you on fast ... read eZoom reviews & insights
eZoom is your one stop shop to help you develop your idea, design and develop ... read eZoom reviews & insights
$100 - $149/hr2 - 92008San Jose, United States
Laitkor is a software services and product company that has been lucratively rendering its constructive services to clients worldwide. We began with zest in 2004 and since then we have incessantly been providing business enterprise & custom applications, infrastructure management, business process outsourcing and top-notch engineering services. With an offshore software development center and accompanied ... read Laitkor InfoSolutions Pvt. Ltd. reviews & insights
Laitkor is a software services and product company that has been lucratively rendering its constructive ... read Laitkor InfoSolutions Pvt. Ltd. reviews & insights
NA50 - 2492004Cupertino, United States
The company has been on the market since 2013 starting from outsourcing UI and UX design and growing the diversity of services year by year. Now, Digit Web Studios is a full-stack digital agency with all the specialists required for the efficient creative process from scratch.
The company has been on the market since 2013 starting from outsourcing UI and UX ... read Digit Web Studios reviews & insights
NA250 - 9992015San Diego, United States
Media One Group LLC offers businesses a fully understand of the commitment of technology. We believe in assisting them in maximizing the value of the technology that they create, sell, or use. We are the best digital design and development company with extensive global infrastructure. Our emphasis is on mobility, advanced, and specialty technology solutions, ... read Media One Group LLC reviews & insights
Media One Group LLC offers businesses a fully understand of the commitment of technology. We ... read Media One Group LLC reviews & insights
$50 - $99/hr10 - 492020Los Angeles, United States
Harvard Web Designer's marketing, and strategic development team relentlessly pursue customer value creation and satisfaction. Against this backdrop, our designers, digital marketers, and developers go to every length to deliver our clientele exceptional service levels. To lend countenance, Steve Jobs once said, “Get closer than ever to your customers. So close, that you tell them ... read Harvard Web Designers reviews & insights
Harvard Web Designer's marketing, and strategic development team relentlessly pursue customer value creation and satisfaction. ... read Harvard Web Designers reviews & insights
NA50 - 249Los Angeles, United States
At Programming.com Inc., we are dedicated to providing efficient and cost-effective software solutions. Our unwavering belief in the reliability and scalability of digital transformation drives everything we do. Our expertise spans a wide range of cutting-edge technologies and services, including Artificial Intelligence, Custom App Development, Cloud Solutions, IoT, AR/VR, Metaverse, Blockchain, Machine Learning, Chatbot, Predictive ... read Programming.com reviews & insights
At Programming.com Inc., we are dedicated to providing efficient and cost-effective software solutions. Our unwavering ... read Programming.com reviews & insights
$25 - $49/hr10000+2010Agoura Hills, United States
Veltris – Innovate, Accelerate, Transform to enable technology-driven Enterprise, Business, and Industry transformations. We are a next generation technology services company specializing in developing products, platforms and solutions in Data & Artificial Intelligence (“Data/AI”), Engineering R&D (“ER&D”) and Digital Product Engineering Services (“PES”). We deliver these offerings to a wide array of SMB and Fortune ... read Veltris reviews & insights
Veltris – Innovate, Accelerate, Transform to enable technology-driven Enterprise, Business, and Industry transformations. We are ... read Veltris reviews & insights
$300+/hr250 - 9992023Milpitas, United States
H&L Consulting, established in 2011, is a premier ITO firm based in the US with a dynamic branch in Hanoi, Vietnam. Our seasoned experts provide customized solutions to global clients, blending American culture understanding and legal expertise. With fluent English communication and cost-effective services, we ensure seamless collaboration across continents. From development support to exceptional ... read H&L Consulting reviews & insights
H&L Consulting, established in 2011, is a premier ITO firm based in the US with ... read H&L Consulting reviews & insights
NA50 - 2492010San Diego, United States
Our goal is to bring your vision to life in a form that’s better than you imagined. We deliver that by providing measurable business outcomes, in a predictable and time-bound fashion. We are a trusted Inc5000 ( 3 times) and Microsoft Gold partner Software Development Company based in Southern California with clients all over North ... read Pegasus One reviews & insights
Our goal is to bring your vision to life in a form that’s better than ... read Pegasus One reviews & insights
$25 - $49/hr50 - 2492009Fullerton, United States
Using AI Tools
- Claude
ChatGPT- GitHub Copilot
- Midjourney
- ElevenLabs
A Plus Games Studio is a full-cycle game development studio based in Sacramento, California, founded in 2018. Our team designs, builds, launches and operates mobile games for iOS and Android, PC and Steam games, Unity applications, and VR and AR experiences for studios, publishers, founders, brands and schools. We have shipped more than 500 titles ... read A PLUS GAMES STUDIO LLC reviews & insights
A Plus Games Studio is a full-cycle game development studio based in Sacramento, California, founded ... read A PLUS GAMES STUDIO LLC reviews & insights
$25 - $49/hr10 - 492018Sacramento, United StatesWhy A PLUS GAMES STUDIO LLC?
- Fixed price quote and plan within 48 hours
- You own 100 percent of the code and IP
- 500 games and app shipped, weekly playable builds
Xekera Systems is a software, hardware and digital agency, we provide all development services and solutions. From web design to mobile application development, We build long term relationships by consistently exceeding expectations. We have a seasoned software and process engineer’s team which transform any idea into reality the team that has been working together for ... read Xekera Systems Inc. reviews & insights
Xekera Systems is a software, hardware and digital agency, we provide all development services and ... read Xekera Systems Inc. reviews & insights
NA250 - 9992001Santa Clara, United States
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San Francisco · $0-24/hr