Top Blockchain Development Companies in California
Goodfirms has reviewed 160 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 160 Blockchain Development Companies in California - part of 3,196+ 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
Using AI Tools
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World’s #1 Rated & Reviewed App & Web Development Partner, Probey Services is a renowned IT and digital solutions provider, powering innovation for startups, SMEs, and growing organizations worldwide. Headquartered in London, UK, with a strong presence in India and 11 global branches, we combine ... read Probey Services reviews & insights
< $25/hr250 - 9992016San Francisco, United StatesA well-executed website project that gave us a stronger foundation for future growth.
- Product ManagerWhy Probey Services?
- Delivered 1,800 projects in the last decade
- Awarded, Most-reviewed, most-rated (122 reviews)
- Reliable & scalable solution with 320 experts
Using AI Tools
- ChatGPT
With over 1,500 successfully completed projects and more than 500 highly satisfied clients, SoluLab is a leading blockchain development company in the USA. The company specializes in building Blockchain Games, Ethereum tokens, Web 3.0 solutions, and DeFi applications. SoluLab is also widely renowned for blockchain ... read SoluLab reviews & insights
$25 - $49/hr250 - 9992014Los Angeles, United StatesGreat experience, operations and value in one place
- AnonymousWhy SoluLab?
- ISO-Certified Development Team
- 10 plus Years of Digital Innovation
- Custom AI Solutions for Every Business
Unicsoft is a trusted blockchain development company with expertise in decentralized applications, DeFi, NFT, blockchain game development, play-to-earn/Web3 games, KYC/AML compliance solutions, and smart contract development and audits. The company builds custom blockchain solutions to drive cost-effective and profitable business outcomes for startups and enterprises.
$50 - $99/hr50 - 2492005Soquel, United StatesDigital Assets wallet.
- CEO
We are DxMinds Technologies, the fastest growing digital transformation company. We have our offices set up in the silicon valley of USA, India, Peru, UAE, and Australia. We master the art of developing cutthroat digital products and solutions leveraging state of the art technologies and ... read DxMinds Technologies Inc reviews & insights
$25 - $49/hr250 - 9992018San Francisco, United Statesbest e-learning app development company for building the educational apps
- Chief Sales Officer (CSO)
Errna is a leading technology company specializing in the areas of niche technologies like blockchain consulting and development, cryptocurrency exchange development, smart contracts application development, digital tokens creation, ICO launching, and other related solutions. We have been helping businesses from all around the globe venture ... read Errna.com reviews & insights
$50 - $99/hr250 - 9992015San Jose, United StatesBest Choice for Blockchain Development
- Co Manager
With Alums from Stanford & LBS, with 25+ years of experience in Technology & FinTech and now 5+ years in Blockchain, PrimaFelicitas houses one of the most powerful founding teams. Started in 2013 with offices in San Francisco, London, and Delhi, PrimaFelicitas is known for ... read Primafelicitas reviews & insights
$50 - $99/hr50 - 2492013San Francisco, United StatesHighly experienced Blockchain development team
- Joseph Lattin
Using AI Tools
- Claude
- ChatGPT
- Perplexity
OMNI Agency is a crypto-native Web3 marketing agency that has partnered with 100+ projects across DeFi, NFT, gaming, AI, and blockchain infrastructure since 2020. We specialize in performance marketing for crypto teams, covering influencer and KOL campaigns, crypto SEO and AI search visibility, paid advertising ... read Omni Agency reviews & insights
$50 - $99/hr10 - 492018San Francisco, United StatesOur website works like charm!
- Aurora CohenWhy Omni Agency?
- 400 vetted crypto creators and KOL network
- 25 token launches and 75M raised for clients
- SEO and AI visibility built for Web3 teams
Using AI Tools
- ChatGPT
- Claude
Cursor- GitHub Copilot
- Perplexity
- + 3 More
At Chop Dawg, we're more than an ordinary app development agency. We're your extended team, focused on delivering the results your business needs. For over 18 years, we've launched 500+ apps for startups, growing businesses, Fortune 500s, nonprofits, & government agencies. When you partner with ... read Chop Dawg reviews & insights
$25 - $49/hr50 - 2492009San Francisco, United StatesChop Dawg went above and beyond to deliver a professional website while providing consistent updates, expertise, and exceptional service throughout the project.
- CEOWhy Chop Dawg?
- Over 500 apps launched in 18 years
- 92 percent of partners return for more
- Fixed monthly pricing, no surprises
HashCash is a global software company offering solutions in Blockchain, AI, Big Data, and IoT through its platforms, products & services. HashCash Blockchain products enable enterprises to move assets across borders in real-time for Remittances, Trade Finance, Payment Processing, and more. HashCash runs US-based digital ... read HashCash Consultants reviews & insights
$50 - $99/hr50 - 249Palo Alto, United StatesPaybito Experience
- Student at Heritage Institute of Technology
Using AI Tools
- Claude
"Seize it before it breeze" , Codiste is an Emerging Tech Solution Provider for the Media Industry, Business Automation, Fintech, and Real estate. We keep expanding the horizon of our expertise in various industries using Blockchain, AI, and Augmented Reality. We believe in Data data-driven ... read Codiste reviews & insights
$150 - $199/hr10 - 492019San Francisco, United StatesCoin For Coffee: Your gateway to simplifying and utilizing cryptocurrency for a brighter financial future.
- Co-FounderWhy Codiste?
- Custom, scalable solutions
- Fast time-to-market delivery
- End-to-end AI development
Using AI Tools
- Claude
- ChatGPT
- Cursor
Lovable- GitHub Copilot
Cubix is a US-based blockchain development company delivering customized and scalable blockchain solutions to businesses in over 50 countries. Backed by a team of 250+ technology professionals, the company specializes in enterprise blockchain, decentralized applications, e-wallet platforms, blockchain supply chain solutions, and blockchain cloud services. ... read Cubix reviews & insights
$25 - $49/hr50 - 2492008Los Angeles, United StatesGood product can be use
- Product ExecutiveWhy Cubix?
- 18 Years of Proven Industry Expertise
- 1,300 Plus Projects Delivered Globally
- Enterprise to Startup, We Scale With You
Using AI Tools
- ChatGPT
Blitz Mobile Apps, a leading mobile app Development company in USA, dives headfirst into today's dynamic market's challenges to provide robust, scalable, and outcome-oriented mobile app development solutions to help businesses scale. Blitz Mobile Apps is the top mobile app development company in USA, founded ... read Blitz Mobile Apps reviews & insights
$50 - $99/hr10 - 492010Santa Rosa, United StatesA passionate, forward-thinking team that delivered a functional app with exceptional UX.
- Marketing ManagerWhy Blitz Mobile Apps?
- Proven mobile app expertise since 2008
- Scalable solutions built for real growth
- Strong focus on client success and results
Pixel Punch is a leading web3 development company specializing in a wide range of blockchain services. We provide innovative solutions that encompass decentralized applications (dApps), smart contract development, blockchain integration, and more. Our team of experts is dedicated to delivering cutting-edge technology and exceptional service, ... read Pixel Punch reviews & insights
NA10 - 492018Anaheim, United StatesMy experience with Pixel Punch was highly collaborative and efficient
- Maggie Greene
We know that building a project can be a very expensive and tiresome ordeal. Therefore, to make the process as seamless as possible, we take the top talent in our expansive network and combine it with artificial intelligence to provide the best possible results. We ... read Inventive Byte reviews & insights
$50 - $99/hr10 - 492018San Jose, United StatesGreat Communication and Brainstorming for Your App Dream
- Austin Williams
DApplica is a blockchain development company building projects in the blockchain and cryptocurrencies industry. We are offering full development cycle for decentralized applications on different blockchains, as well as tokenization and technology consulting.
NA10 - 492018San Francisco, United StatesGreat Blockchain Specialists
- Co-Founder
Waverley Software is a software engineering and consulting enterprises company headquartered in Palo Alto, California. We have been building award-winning software products and groundbreaking Artificial Intelligence solutions for FinTech, Healthcare, Energy, Smart Home, Robotics, and other domains for over 30 years. As we deliver world-class ... read Waverley Software reviews & insights
$50 - $99/hr250 - 9991992Palo Alto, United StatesTop shelf offshore team: dedicated, capable, tenacious, and reliable
- Head of Security & Privacy
Optymize is a worldwide technical talent marketplace that connects companies with verified, remote engineers who have robust technical & communication skills and work in their timezone. A number of leading companies like Sidewalk Labs, RD&X, Yello and Planoly leverage Optymize to scale their engineering teams ... read Optymize reviews & insights
$50 - $99/hr10 - 492020Santa Monica, United StatesBlockchain Development for an entertainment network & Full Stack Development services for Digital Marketing Company
- Risk Management & Loan Portfolio Management
Using AI Tools
- ChatGPT
- Claude
- Gemini
- Cursor
Replit
MoogleLabs is the world-leading and renowned AI development company that offers digital transformation to its clients with its office in Canada and USA. Our Artificial Intelligence Development Company focuses on human empowered automation services. We have an ultimate objective to turn your dream of "Innovative ... read MoogleLabs reviews & insights
$25 - $49/hr50 - 2492020Emeryville, United StatesBuilding an NFT Marketplace with MoogleLabs: A Positive Experience
- AnonymousWhy MoogleLabs?
- Powering Enterprises with Next-Gen AI & Web3
- Building Scalable Custom Tech That Drives Growth
- Proven Expertise in Complex Engineering Solutions
About NanoByte Technologies NanoByte Technologies is a leading IT powerhouse dedicated to delivering innovative and high-quality technology solutions. With over 10 years of experience, we ensure 100% client satisfaction and long-term success. Core Services Custom SaaS Solutions: Cutting-edge software solutions tailored to meet specific business ... read NanoByte Technologies reviews & insights
NA50 - 2492015Sacramento, United StatesNanoByte Technologies provided a seamless, secure, and efficient fintech solution.
- CO-founder
HOI Solutions work with you on every step of the process to build a software solution, your staff & customers use every day. From concept to code and from development to deployment, we do all the heavy lifting, so you don’t have to.
$25 - $49/hr10 - 492014Newport Beach, United StatesWe wanted SEO services from HOI Solutions
- Brand Manager
DreamzTech Solutions is a leading global software development company delivering end-to-end digital transformation, AI-powered innovation, and enterprise-grade solutions for over 16 years. Headquartered in the USA, with offices in Las Vegas (NV) and Tempe (AZ), and a strong global presence in the UK, India, and ... read DreamzTech Solutions reviews & insights
$25 - $49/hr50 - 2492013San Francisco, United StatesThoughtful technical approach to building a more accessible digital mental health experience
- Chief Executive Officer at JAAQ
Block Cyper is based in California and provides BlockChain services. Our architecture allows us to run in multiple data centers for redundancy and low latency. Simple and easy web APIs enable developers to build blockchain applications quickly and confidently. Our modular, cloud-optimized architecture is enterprise-grade ... read Block Cypher reviews & insights
$25 - $49/hr10 - 492012Los Angeles, United StatesWorst After Sales Service
- Project Manager
Using AI Tools
- Claude
- Gemini
- Perplexity
Grok- ChatGPT
🇺🇦 RGray is an AI-accelerated, performance-oriented marketing agency for crypto, AI, SaaS, fintech, and tech companies. Since 2019, we've served 80+ tech businesses, supported 15 token launches, and raised $30M+ for our clients - earning a 4.9 rating on Clutch, with 15% of clients staying ... read RGray reviews & insights
$25 - $49/hr10 - 492019San Francisco, United StatesRGray has delivered quality digital marketing work by combining strong technical expertise with valuable experience in the crypto space.
- AnonymousWhy RGray?
- AI-powered execution, human-led strategy
- First tangible results within 2 months of launch
- 80 tech clients, 15 token launches, 30M raised
Talentica Software is an AI-native product engineering company helping startups and enterprises build scalable, secure, and high-performance digital products. With 22+ years of experience and 200+ products built across the product lifecycle, we combine strong engineering fundamentals with advanced AI capabilities to accelerate development and ... read Talentica Software reviews & insights
$25 - $49/hr250 - 9992003Pleasanton, United StatesHighly skilled and knowledgeable team.
- Co-Founder and CTO
Neebal, a technology solutions provider, has delivered top of the line solutions across Agro, Pharma, and BFSI verticals. Neebal aims to provide top tier services for API Integration, RPA, and advanced mobility with prime focus on Hyperautomation. Founded in 2010, Neebal is proud recipient of ... read Neebal Technologies reviews & insights
$25 - $49/hr50 - 2492010Fremont, United StatesNeebal Technologies has been amazing in their support and understanding of our project needs.
- Engenheiro Agrônomo de Tecnologia de Aplicação
Venture Aviator is an innovative software development company. Venture Aviator has capabilities in Web Development, Mobile Development, Blockchain Development, Full-Service Initial Coin Offering (ICO) advisory & cryptocurrency launches, and Artificial Intelligence. Our team brings a unique combination of technology expertise, design and engineering talent, strategic ... read Venture Aviator reviews & insights
$50 - $99/hr50 - 2492012Los Angeles, United StatesFantastic Work by Fantastic Development Team
- President
Internxt Drive is an open-source, zero-knowledge, encrypted cloud storage service based on absolute privacy and security. Internxt cloud uses blockchain technology so people’s data and files are fully encrypted and secure. Internxt Photos is an app to store and share photos securely, and Internxt Send ... read Internxt reviews & insights
$25 - $49/hr10 - 492017San Francisco, United StatesGood option if you need extra storage space to store files
- Paula Lopez
BestWeb3Development is a global leader aiming to deliver reliable results for our clients. We have partnered with renowned enterprises that have the potential to handle paramount challenges and grab topmost opportunities. We have successfully built a deep sense of association with the global communities to ... read Best Web3 Development reviews & insights
$25 - $49/hr250 - 9992013Concord, United StatesBest Decision I Made - Choosing Best Web3 Development for My Cryptnoid
- CEO
Pitangent Analytics and Technology Solutions is the home of curious minds who like to innovate and engage. We have been providing IT solutions to individuals and enterprises for more than 2 decades. Our focus is to smoothen the sharp edges of digital transformations for individuals ... read Pitangent reviews & insights
< $25/hr10 - 492017San Francisco, United StatesBest bang for your buck
- Eli Fratkin
Sara Technologies, Inc. is a provider of excellent Information Technology services in California, here to share our adept IT skills to meet our clients’ new-generation business needs. During the past 10 years, our company has catered to a broad spectrum of industries, organizations, and service sectors, including state government, tribes, tribal schools, housing authorities, and ... read Sara Technologies Inc. reviews & insights
< $25/hr50 - 2492007San Diego, United States
Blockstream was founded to develop new ways to accelerate innovation in crypto currencies, open assets and smart contracts. We're renowned architects of Bitcoin, cryptographers, cypherpunks, entrepreneurs, as well as leaders from the business, policy and the open source community. We believe in the potential of bitcoin and blockchain technology to have a significant, positive social ... read Blockstream reviews & insights
$25 - $49/hr10 - 492014San Francisco, United States
Crypto Bullion (CBX) is a digital asset with all of the qualities of money. It employs a unique advanced security model which is exceptionally secure and efficient. The problems of today’s debt based fiat currencies find solutions in the cutting-edge decentralized cryptographic currency Crypto Bullion. Designed to function as a store of wealth, Crypto Bullion’s ... read Crypto Bullion reviews & insights
$25 - $49/hr10 - 492013San Francisco, United States
Chain is an infrastructure technology company that enables its partners to issue and transfer financial assets on permissioned blockchain networks. Chain has formed strategic partnerships with leading financial services firms like Nasdaq, Visa, Citi, Capital One and Fiserv. Chain Core Developer Edition is our free platform for prototypes that is available for download at developer.chain.com. ... read Chain reviews & insights
$25 - $49/hr10 - 492014San Francisco, United States
Skuchain is a blockchain platform that provides transparency, security and efficiency to the supply chain, enabling optimal planning and agility for downstream buyers and working capital relief for upstream suppliers. With our breakthrough solutions, our customers access uniquely reliable information and turn it into capital.
$25 - $49/hr10 - 492014Mountain View, United States
loyyal is the universal loyalty and rewards platform, built with blockchain and smart contract technology. It introduces interoperability to the currently fragmented industry, multi-branded coalitions, superior program liability management and dynamic issuance/redemption options customized for each unique relationship.
< $25/hr2 - 92014San Francisco, United States
Blockchain Studioz is a Blockchain development company in USA, renowned for offering customized and top-notch blockchain architectures globally. We established in 2015, is an emerging IT/ITES firm based in USA, providing successful IT services to their clients across the globe. We bring you a team of dedicated technical and business experts evoking from commendable academic ... read Blockchain Studioz reviews & insights
< $25/hr10 - 492015Torrance, United States
TheBlockBox builds end-to-end blockchain applications for a wide range of industries, including finance, banking, supply chain, healthcare, transportation, digital identity, and advertising. We help businesses identify whether or not the blockchain is the right technology for their idea or project and help them understand how to take complete advantage of it. An experienced blockchain development ... read TheBlockBox reviews & insights
NA2 - 92019San Francisco, United States
Shipping is complicated. It shouldn't be. ShipChain is making transport and logistics more effective, secure and transparent by utilizing blockchain technology. It was founded with the mission of solving the greatest problems facing the logistics industry today. Our solution requires deep technology, but our vision is quite simple. Imagine a fully integrated system across the ... read ShipChain reviews & insights
< $25/hr10 - 492017Los Angeles, United States
TangoTrade expands global trade for small and medium sized businesses. For us, this means opening up new financing options, reducing risk for importers and exporters, taking the pain and complexity out of international trade, and applying the optimal technology like blockchain and smart contracts to solve these challenges. We’re starting by reinventing the outdated letter ... read TangoTrade reviews & insights
< $25/hr2 - 9San Mateo, United States
Openware is the software engineering leader of the open-source blockchain ecosystem. Our full-stack products help Developers build next-generation DeFi apps and enable Enterprises to launch robust future-ready financial infrastructure. Openware, Inc. (San Francisco, California) has a mission to create a safe, transparent and universally accessible financial ecosystem. Openware's software solutions enable enterprises and developers to ... read Openware, Inc. reviews & insights
$100 - $149/hr50 - 2492006South San Francisco, United States
Before starting to develop any new feature in this Bitcoin Trading Script, we always take the time to study the market's needs and requirements. This Crypto exchange software is always updated with the most recent market trends.We're a young but determined company built by a professional and enthusiastic team, driven by our customers' success stories. ... read BitExchange reviews & insights
NA50 - 249Los Angeles, United States
Stobox is an award-winning tokenization company specializing in technology and consulting services to facilitate using digital assets and tokenized securities. With a commitment to revolutionizing financial technologies, the company focuses on making these technologies more efficient, accessible, and transparent. Stobox's ecosystem products are designed to support the tokenization process: DS Dashboard: A primary solution for ... read Stobox Inc reviews & insights
NA10 - 492018Los Altos, United States
Blockchain Coders is a blockchain development company. Blockchain Coders are in high demand as Blockchain technology is becoming more and more popular. As a Blockchain Programmer, you would be responsible for coding and maintaining the Blockchain ledger. This would include creating new transaction blocks, verifying transactions and ensuring the security of the Blockchain. Blockchain Coders ... read Blockchain Coders reviews & insights
$50 - $99/hr50 - 2492020Agoura Hills, United States
Blockchain Labs is one of the leading providers of blockchain technology solutions. We have built and operated COOV, South Korea's national blockchain-based COVID-19 vaccine passport that serves more than 43 million users and processed over 30 million verifications per day - this is by far the biggest and the most successful blockchain service that people ... read Blockchain Labs reviews & insights
NA10 - 492014San Francisco, United States
The premiere blockchain consultancy. Our philosophy is that blockchain is a unique business tool, and before blockchain can be utilized, we must determine what is the business model and purpose it serves. We generate business-oriented blockchain solutions. We’ve been in the trenches, started businesses that grew to an 8 figure exit and launched cryptocurrencies that ... read Blockchain Guys reviews & insights
< $25/hr2 - 92017Los Angeles, United States
Blockdaemon began with a firsthand problem: running Ethereum nodes in 2017 was frustratingly complex. Our CEO and Founder, Konstantin Richter, realized the infrastructure and tooling needed to support blockchain just didn’t exist. That gap led to a bigger idea—one that evolved into the robust, global platform that powers Blockdaemon today. What started as a solution ... read Blockdaemon reviews & insights
$100 - $149/hr250 - 9992017Los Angeles, United StatesWhy Blockdaemon?
- Transparent communication and reporting
- Experienced and dedicated team
- Proven results and data-driven strategies
Using AI Tools
- ChatGPT
Muslim Coin (MSLM) is a next-generation halal cryptocurrency designed to power a fully Shariah-compliant digital ecosystem. Built as the native utility token of the Muslim Chain, it serves as both the primary gas fee mechanism and transactional backbone within the broader Muslim Logs ecosystem. This ecosystem brings together a consortium of independent organizations and global ... read Muslim Coin reviews & insights
NA50 - 2492024Mission Viejo, United StatesWhy Muslim Coin?
- Built on strict Shariah compliant principles
- Designed for ethical transparent digital finance
- Supports real world utility for the global Ummah
Using AI Tools
- GitHub Copilot
The market-leading oracle platform bringing the global financial system onchain. Data + Interop + Compliance + Privacy + Orchestration → $28 trillion enabled If you’re interested in helping innovate the inevitable, learn more about available Chainlink Labs careers at chainlinklabs.com.
$25 - $49/hr250 - 9992017San Francisco, United States
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San Francisco · $0-24/hr