Top Ethereum Development Companies in California
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Explore Reviewed Ethereum Development Companies in California — Find Skilled Ethereum Developers for Your Project
Certain agencies may be featured through sponsored placements. Rankings and SF Scores remain unbiased and are based solely on our evaluation methodology.
17 Companies
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California
4.9 (16 Reviews)
58
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
58
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Engineering peace of mind
As a software development company with 20+ years in the field, Vention provides innovative services to startups and large enterprises. We tackle projects of any complexity and size, delivering outstanding solutions that help clients focus on business expansion and new opportunities. With 3K+ dedicated developers globally, we match clients with top engineering talent in time zones that align seamlessly with their unique needs. Our impressive track record: We've worked with 500+ industry-leading clients, including PayPal, IBM, Mount Sinai, PwC, and Postman Our work has contributed to $15B+ in client acquisitions. Clients typically save up to $600K annually with us. With an average client relationship exceeding 36 months, our enduring partnerships speak to consistent client satisfaction. Our longest client engagement has lasted 16 years. We provide end-to-end software development expertise, covering the entire engineering spectrum, from initial concept creation to final delivery and refinement. Custom software development Web and mobile development QA and testing Cloud & DevOps eCommerce AR/VR AI Blockchain
See all 9+ Portfolios
$50-$99/hr
$25,000+
1,000 - 3,000
New York, USA
Verified Client Review
Mobile App Dev for Sports Tracking Platform
Reviewed by: Brent Varrall, Founder at AllGains View all 16 Reviews
4.8 (8 Reviews)
52
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
52
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Your Technology Partner
SDLC Corp is a software development company founded in 2015 and headquartered in San Francisco, California, United States. The company operates with a global delivery presence across the USA, UK, UAE, India, Australia, and Canada. SDLC Corp employs 400+ professionals, including software engineers, solution architects, UI/UX designers, DevOps specialists, and technology consultants. The company works with startups, mid-sized & large businesses, and enterprises across multiple regions and industries. SDLC Corp provides custom software development services that include web application development, mobile application development for native and cross-platform environments, artificial intelligence and machine learning solutions, ERP development using Odoo and Salesforce, blockchain development, SaaS product engineering, cloud infrastructure and DevOps services, and game and iGaming development. These services support both new digital product development and the modernization, integration, and scaling of existing software systems. The company offers flexible engagement models such as dedicated development teams, full-cycle product development, and long-term IT outsourcing partnerships. These models are designed to support distributed engineering teams, continuous development roadmaps, and ongoing system maintenance. SDLC Corp serves clients across fintech, gaming and iGaming, healthcare, retail and e-commerce, logistics and supply chain, SaaS and technology, and manufacturing industries. Typical use cases include workflow automation, system integration, data-driven applications, secure transaction platforms, high-traffic digital systems, and enterprise software platforms. SDLC Corp follows structured software engineering practices that include requirement analysis, architecture planning, iterative development, quality assurance, deployment, and post-launch support. By aligning technology implementation with defined business requirements, the company supports operational efficiency, system reliability, and long-term digital scalability.
See all 36+ Portfolios
$25-$49/hr
$10,000 - $50,000
200 - 414
San Francisco, USA
Verified Client Review
5.0 (8 Reviews)
46
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
46
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
IT Consulting & Development Services
A3Logics is a leading IT solutions development company specializing in advanced technologies such as Artificial Intelligence (AI), Blockchain, and the Internet of Things (IoT). Our expertise covers a wide range of services, including product engineering, custom software development, educational software solutions, software testing, maintenance, and re-engineering. We harness cutting-edge technologies to craft solutions that are secure, compliant, scalable, and impactful, helping businesses drive operational efficiency and achieve sustained growth. At A3Logics, we cater to a broad spectrum of industries, including Insurtech & Employee Benefits, Logistics & Supply Chain, Retail & Ecommerce, Education & E-learning, and more. Whether working with startups, independent software vendors (ISVs), or Fortune 500 companies, our team creates and delivers tailored solutions designed to meet the specific needs of each client, enabling them to excel in an ever-evolving digital landscape.
See all 5+ Portfolios
$25-$49/hr
$10,000+
250 - 499
Carlsbad, USA
Verified Client Review
Web Dev & QA for News Website
Reviewed by: Jaime Enoch Ortega, Administrator at The Daily Journalist View all 8 Reviews
4.8 (3 Reviews)
42
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
42
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Your Emerging tech partner
"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 approach when we build solutions for our customers. Our team of highly skilled professionals is committed to delivering innovative and customized solutions to meet the unique needs and requirements of our Customers, We make sure our Customers are making informed decisions and are well aware of the end-to-end solution on how it works. We take a customer-centric approach to our work, ensuring that our clients receive exceptional service and the highest quality work, even on the most complex projects. Our expertise in the latest technologies, combined with our industry-leading project management processes, ensures that we consistently deliver projects on time and within budget. We follow the DDOM approach when it comes to the Delivery of products. As a trusted partner for startups, and SMEs, we understand the challenges and opportunities faced by modern organizations, and we work closely with our clients to develop solutions that address their specific needs and goals. Our focus on innovation and collaboration means that we are constantly pushing the boundaries of what's possible, helping our clients to stay ahead of the curve and achieve long-term success.
See all 1+ Portfolios
$50-$99/hr
$10,000+
50 - 100
California City, USA
Verified Client Review
AI Development for AI Consulting Company
Reviewed by: Davide Solferino, Co-Founder at Consulting Company View all 3 Reviews
5.0 (6 Reviews)
39
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
39
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
A Product Engineering company
HashStudioz Technologies Inc. is an award-winning product development company that serves clients from entrepreneurs to Fortune 500 companies with innovative information technology solutions. The company began operations in 2018 and has since expanded to include more than a thousand technical experts, engineers, and professionals. Facilitating a wonderful client experience and clever, new solutions depends on timely delivery and post-development assistance. They have successfully completed over 200+ projects since its beginning. The company also offers cutting-edge technologies including the Internet of Things (IoT), Blockchain, Travel Technologies, Cloud Computing, E-commerce, and a Marketplace for Services.
View HashStudioz Technologies Inc Profile
< $25/hr
$20,000 - $50,000
250 - 300
Altadena, USA
Verified Client Review
It's a pleasure to work with them
Reviewed by: Ryan Kenning, Project Manager at NEC Financial Services View all 6 Reviews
0.0 (0 Reviews)
34
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
34
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
High Quality Software Company in Vietnam
AgileTech Vietnam stands at the forefront of technology outsourcing, offering comprehensive services in website and mobile app development, blockchain technology, and AI-driven big data solutions. Since our inception in 2015, we have established ourselves as a trusted technology partner for a diverse range of startups, many of which have attracted significant investment. Our expertise lies in delivering high-quality, scalable solutions that drive business growth and innovation. Our approach combines a highly skilled team with a commitment to transparency and excellence. We prioritize understanding your unique needs and challenges, ensuring that our solutions are perfectly aligned with your business objectives. Whether you are looking to develop a robust digital platform, leverage blockchain for secure transactions, or harness the power of AI and big data, AgileTech provides the technical prowess and strategic insight necessary to achieve your goals. With AgileTech, you gain a partner dedicated to pushing the boundaries of technology and innovation. We are passionate about collaborating with forward-thinking businesses to bring groundbreaking ideas to life and propel them towards success in an ever-evolving digital landscape. Website: https://agiletech.vn/ Phone: 0989 324 830 Email: hello@agiletech.vn Address: Floor 3&4, No 82/116, Nhan Hoa, Thanh Xuan, Hanoi, Vietnam
View AgileTech Vietnam Profile
$25-$49/hr
$25,000+
100 - 150
Irvine, USA
5.0 (1 Reviews)
30
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
30
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
You Have Ideas. We Bring Them to Life.
Over the years, we’ve narrowed our focus and deepened our expertise in such industries as ticketing and fintech. We apply proven technologies that elevate operational capabilities for our clients. We also develop and embrace cutting-edge ideas redefining the digital ecosystem, like blockchain. We believe working with different multidisciplinary solutions while proactively pushing boundaries separates us – and our clients.
View Softjourn Profile
$50-$99/hr
$40,000+
250 - 350
Fremont, USA
Verified Client Review
IT Support for Accounts Automation Business
Reviewed by: Peter Connor, Founder at Bullet HQ View all 1 Reviews
5.0 (7 Reviews)
29
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
29
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Innovative Software Solutions for Web, Mobile, IoT, and Blockchain
Coreware is a software design and development company delivering innovative digital solutions across Web, IoT, Blockchain, and mobile platforms (iOS, Android). Acting as your technical co-founders, our expert engineers collaborate closely with your team to build, develop, and maintain scalable software systems that power your ideas. We leverage cutting-edge technology to create tailored solutions that help clients grow their businesses while adhering to the highest standards of quality and professionalism. At Coreware, our culture emphasizes collaboration, excellence, and innovation, ensuring that every project we undertake exceeds expectations and provides long-term value for your organization.
View Coreware Group Profile
$50-$99/hr
$25,000+
10 - 49
Los Angeles, USA
Verified Client Review
Development of a Mobile Prototype for a Social Connection App
Reviewed by: Josh Salak, CEO at Bonvi View all 7 Reviews
4.8 (2 Reviews)
4.8 (2 Reviews)
29
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
29
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Crpyto | ICO | Exchange & Blockchain Software
Errna is a leading expert company specializing in blockchain application development, cryptocurrency exchanges, and consulting. With over 50 blockchain developers and designers, they offer a range of services including blockchain consulting, smart contract application development, digital token creation, and ICO launching. Their expertise spans public, private, and consortium blockchains, and they cater to various industries such as finance, transport, manufacturing, logistics, and healthcare. Errna's solutions are tailored to meet the specific needs of each client and follow industry best practices. They offer full-service solutions for startups and established businesses, including blockchain development, smart contracts, digital tokens, exchange software, and ICO launching.
View ERRNA Profile
< $25/hr
$5,000+
1,000 - 9,999
San Jose, USA
Verified Client Review
Custom Software Dev for Online Learning Platform
Reviewed by: Bertie Hubbard, Co-Founder & CEO at MyTutor View all 2 Reviews
0.0 (0 Reviews)
28
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
28
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Enterprise Mobile App Development Company
Junkies Coder is a leading technology solution provider across 15 countries and 50+ Rockstar Developers is our strength, We're specializing in web development Excellence, Top-rated Mobile App Development, Top-rated Android App Development, Top-rated iOS App Development, Top-rated Wearable App Development, Trusted Blockchain Development and innovative solutions. Our experienced team is dedicated to delivering high-quality service and support to help businesses achieve their goals. With a passion for technology and a commitment to delivering impactful results, we have the expertise and resources to streamline operations and drive success. Trust Junkies Coder for your technology needs and Hire Mobile App Developers. Junkiescoder stands at the forefront of innovation, specializing in crafting stellar Mobile apps, captivating Web Applications, and sophisticated enterprise custom solutions. We excel in tailoring, enhancing, and seamlessly integrating intricate enterprise-grade systems, empowering businesses with insightful analytics, and pioneering cutting-edge web and mobile innovations. Boasting a rich legacy of over a 8+ years, our endeavors have catered to a diverse clientele spanning individuals, burgeoning startups, and esteemed organizations alike. At Junkiescoder, our adept team continually surges forward, honing their skills to keep pace with the dynamic industry landscape. From Blockchain to E-Learning, from IoT to Artificial Intelligence, from Machine Learning to SaaS, from Augmented Reality to Virtual Reality, the spectrum of our expertise knows no bounds. Our seasoned development squad has not only mastered these domains but also perpetually evolves alongside industry advancements. Let our achievements speak volumes; delve into our illustrious portfolio and peruse the glowing testimonials from our esteemed clients on our website. With Junkies Coder, you can trust that your technology needs are in good hands. What is the estimated timeline and cost for developing our website or mobile app? The estimated timeline and cost for developing your website or mobile app will depend on various factors such as project complexity, required features, design customization, and integration needs. We will analyze your specific requirements and provide you with a detailed timeline and cost proposal tailored to your project. Can you assist with integrating third-party services or APIs into our websites or mobile apps? Yes, we can assist with integrating third-party services or APIs into your websites or mobile apps. we have experience in seamless integration to enhance the capabilities of your digital products. What is our approach to quality assurance and testing during the development process? Our approach to quality assurance and testing is comprehensive. We follow industry best practices and conduct thorough testing at different stages of development to ensure the functionality, performance, and reliability of your website or mobile app. How we handle ongoing support, maintenance, and updates for the websites and mobile apps after the initial development? We provide ongoing support, maintenance, and updates for websites and mobile apps. Our team is available to address any issues, implement updates, and provide technical assistance to ensure your digital products continue to operate smoothly and remain up-to-date.
View Junkies Coder Profile
< $25/hr
$5,000 - $25,000
15 - 20
San Francisco, USA
5.0 (5 Reviews)
28
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
28
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Build Advance software development
Creating Digital Products from Concepts to Upend Industries Leading AI software development firm Rytsense Tech specializes in creating AI solutions that inspire change and revolutionize industries. Our skilled team of more than 100 tech enthusiasts serves clients in the US, Europe, AU, and ME areas. To far, we have revolutionized digital experiences for more than 100 Fortune 500 organizations and startups. One of the well-known suppliers of IT services is thought to be Rytsense Technologies. When faced with issues in the information and technology sector, the professional company is carefully structured to provide more attainable results and solutions for usage in a variety of industries. Cloud & DevOps Blockchain Business Intelligence, Data Science and Analytics, Software Development, Digital Transformation, Artificial Intelligence, and Product Design are among our areas of competence. We have an effective and appropriate collaboration between the company's internal IT settings and the new external IT environments. With dedication and perseverance, Rytsense Technologies has quickly expanded into a software development services provider with clients in India and around the world. Why pick us: As seen by the unmatched outcomes we have produced for our clients and the industry recognition we have earned, we are experts at reinventing software and AI development experiences across sectors. Top paid and free app charts across several languages and nations won numerous honors, including "App Development Company of the Year," from esteemed publications including Entrepreneur and CIO Review. Get in touch with us to talk about your project!
View Rytsense Technologies Profile
$25-$49/hr
$10,000+
50 - 249
Mountain View, USA
Verified Client Review
Custom Software Dev for Software Solutions Company
Reviewed by: Jose Pablo Lopez, Project Manager at NTD Software View all 5 Reviews
5.0 (5 Reviews)
5.0 (5 Reviews)
28
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
28
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Transform Your Ideas into Innovative Solutions
Clavax has been pursuing the concept of constructing and applying great ideas right from the start year that empowers the company of customers and improves their lives through creative company alternatives. Their crew is distinguished by the fantasy, understanding, and experience that they introduce to every venture they manage across systems. They know how important connections are to nurture. They assist you to develop distinctive digital environments for your e-commerce company with a multi-disciplinary team of e-commerce Web developers. Whether expanding your e-commerce site’s current capacities or constructing a whole fresh brand image from the floor up, their knowledge and the variety of alternatives accessible enable you to offer high-impact alternatives.
View Clavax Profile
$25-$49/hr
$5,000+
50 - 249
San Jose, USA
Verified Client Review
Custom Software Dev for Cash Management Solutions Provider
Reviewed by: Fred Stellatos, Product Manager at Consillion Pty Ltd View all 5 Reviews
0.0 (0 Reviews)
0.0 (0 Reviews)
27
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
27
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Custom Blockchain Solutions Development
Protofire drives growth in TVL and usage for web3 projects. Our developer DAO ensures aligned incentives. Utilizing in-house and third-party components, we decrease costs and increase quality. We ideate, implement, support long-term growth solutions through strategy, compatibility, and marketing. Serving top-tier L1/L2 chains and DeFi protocols, our outcome-driven engagements deliver measurable success.
View Protofire Profile
$25-$49/hr
$1,000+
50 - 249
Sunnyvale, USA
0.0 (0 Reviews)
27
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
27
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Digital Transformation Agency
Appinventors is a leading Digital Transformation Agency, we empower businesses to thrive in the modern digital world. We specialize in catalyzing growth through innovative digital solutions. Our team of experts harnesses cutting-edge technologies to optimize operations, enhance customer experiences, and drive tangible results. Appinventors is your partner in navigating and conquering the realms of digital transformation.
View Appinventors INC Profile
$25-$49/hr
$10,000 - $100,000
50 - 100
Los Angeles, USA
0.0 (0 Reviews)
27
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
27
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Aiming to enhance the lives of billions of users with innovative technology solutions.
At BestPeers, we are passionate about crafting innovative and reliable software solutions that empower businesses worldwide. With a commitment to simplicity and efficiency, we combine our technical expertise with a collaborative approach to deliver solutions that solve real-world challenges. We are proud to extend our services across the globe. This growth reflects our dedication to providing exceptional solutions and building lasting client relationships. Our mission is to leverage technology to simplify processes, improve business outcomes, and drive growth. We focus on collaboration and adaptability, working closely with our clients to ensure every solution aligns with their goals and evolves with their needs. Software and Web Development - Mobile Applications - Enterprise Solutions - Data Analytics - UX/UI Design - Digital Marketing - IT Staff Augmentation - Custom Development Ruby on Rails - Data Analytics: Data Engineering with Python, PySpark, AWS Services, Azure Services, GCP, Power BI, ETL Pipelines, Pandas, NumPy - Python / Django / Flask - React - Node - MEAN/MERN - React Native / Flutter E-commerce - Healthcare - Food Tech - HR & Recruitment - Travel - Sports With a focus on innovation, adaptability, and results, we are here to help you transform your business with cutting-edge solutions.
View Bestpeers Profile
$25-$49/hr
$24 - $50
500 - 1,000
California City, USA
0.0 (0 Reviews)
26
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
26
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Your Trusted Software Development Company
As one of top 10 software development companies in Vietnam since 2009, we have empowered our global clients through excellence in digital transformation. We provide custom software development and dedicated development team, tailored to businesses of all sizes, regions and industries.
View SavvycomSoftware Profile
$25-$49/hr
$20,000 - $50,000
750 - 800
Laguna Beach, USA
0.0 (0 Reviews)
17
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
17
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Reforming Tomorrows Tech
Greetings from Tech Reforms, your go-to source for complete mobile app development and web design. Change your online presence and establish a stronger connection with your audience. Don't allow your company suffer from a lack of tech skills. To find out how we can assist you in reaching your objectives, get in touch with us right now.
View Tech Reforms Profile
$25-$49/hr
$5,000+
10 - 49
Los Angeles, USA
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