Are you looking for an Ethereum blockchain company to help you develop secure decentralized applications and smart contracts? After evaluating numerous case studies, authentic client feedback, and service scope, we compiled a list of the best Ethereum blockchain development companies. Browse our directory and tailor your search by budget, hourly rate, company size, and location to find the best match for your needs.Â
Best California Ethereum Blockchain Development Companies
93 Companies - Rankings updated: April 02, 2026
All agencies are evaluated on DesignRush for demonstrated expertise and authentic client reviews to support your decision. Certain placements are paid.
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 [... view Easiio profile ]- Location
- Santa Clara, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
Infinite Possibilities in Mobile and Software
Infiniti Qube is a premier Mobile and Web Development company dedicated to transforming innovative ideas into exceptional digital experiences. We specialize in creating customized solutions that drive business success and enhance user engagement. [... view Infiniti Qube profile ]- Location
- Anaheim, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Portfolios Count
- 2 Projects Listed
EpicBliss Solutions provides a variety of IT services.
Many worldwide clients are now using "EpicBliss" benchmark solutions, We're capable to drive you to the right tech-track for your laudable idea. So, let's scrutinize your business need, mold it and establish it with the latest and most suitable technologies. [... see all EpicBliss reviews ]- Location
- Ontario, California
- Number of Employees
- Under 49
Aiming to Achieve Your Business Goals Through Technology
Code Genesis is a full-stack development company dedicated to building scalable and secure digital platforms. We combine expertise in cloud, automation, and modern software engineering to create solutions that are both innovative and reliable. Our mission is to deliver technology that not only meets todays [... view Code Genesis profile ]- Location
- Santa Clara, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 7 Projects Listed
Navigating the IT Future With Clarity of Thought
At HyScaler, we're driven by a mission to be your trusted partner in achieving transformative business objectives. Our global vision focuses on harnessing cutting-edge technologies to craft sustainable, intelligent, and secure solutions. [... view HyScaler profile ]- Location
- Santa Clara, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 2 Projects Listed
Award-Winning Mobile Design & Development Agency with AI Expertise
Utility is a premier digital product agency specializing in custom mobile apps, web platforms, and AI-powered solutions for forward-thinking startups and global brands including Airbnb, Coca-Cola, Samsung, the NBA, and Forbes. [... view Utility profile ]- Location
- Los Angeles, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $149/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 1 Project Listed
Our Model Is Much Different And Way Better Than the Usual Offshoring Nonsense.
Our Yourshore model is intentionally designed to give you the very best remote engineering solution that solves for all the usual pain points that plague traditional offshore vendors [... view TurnKey Labs profile ]- Location
- Menlo Park, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $25,000 - $50,000
Rocket your business forward with our expertise.
Rocket Systems is focused on producing high-quality code, we take extra precautions to ensure that our technological approach is congruent with the ambitions of our customers. Additionally, we strive to create code bases that are both scalable and easily maintained. In order to construct a digital product [... view Rocket Systems profile ]- Location
- Sacramento, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
Bridging the gap between Ideas and Reality
Top mobile app development company that offers cost-effective Android, iOS applications design and development services in USA and India. [... see all Appventurez Mobitech reviews ]- Location
- San Jose, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 3 Projects Listed
Digital Transformation Agency.
Appinventors stands as a prominent Digital Transformation Agency, enabling businesses to prosper within the contemporary digital landscape. At Appinventors, we pride ourselves on delivering exceptional customer support and assistance. Whether you're facing technical challenges or seeking guidance on your [... view Appinventors Inc profile ]- Location
- Los Angeles, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
Straight hands. Hot heads.
We use the best world practices (YAGNI, KISS, DRI, and SOLID). An enterprise approach is an advantage, not an excuse. An extreme approach to development allows us to resort to the use of development-driven methodologies, in particular design, domain, bound, and testing. [... view Atlantis profile ]- Location
- Newport Beach, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $1,000 - $10,000
Your Extended Engineering Team
Argusoft is a trusted software solutions design consultancy that provides end-to-end, enterprise-class turnkey solutions. Our team of Argonauts are trained to think design at every step, architecting, designing, and coding with the business goals and objectives of our clients in mind. [... view Argusoft profile ]- Location
- Newark, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $25,000 - $50,000
AI-Powered Community of Expert Dev Teams
DevTeam.Space is an AI-powered community of expert dev teams. Our mission is to help more businesses build great online products. [... view DevTeam.Space profile ]- Location
- Sunnyvale, California
- Number of Employees
- Under 49
- Minimal Budget
- $1,000 - $10,000
Designing More Human Experiences.
We are Lab 201, a multidisciplinary team of trouble-makers and problem-solvers working together to design, engineer, build, and test the future. [... view Lab 201 LLC profile ]- Location
- Los Gatos, California
- Number of Employees
- Under 49
Lukasa is a next-gen consulting partner helping organizations transform through data modernization,
Custom Software that Actually Works the Way You Do [... view Lukasa profile ]- Location
- Los Angeles, California
- Number of Employees
- Under 49
Our expertise makes a positive impact to your business
AlgoRepublic offers comprehensive business automation, product development, and software/web development services to clients globally. Our expertise ensures innovative and efficient solutions tailored to meet the diverse needs of businesses worldwide. [... see all AlgoRepublic reviews ]- Location
- Los Angeles, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $30/hr
- Minimal Budget
- Under $1,000
- Portfolios Count
- 1 Project Listed
Transforms Digital Idea Into Reality
Appther is a software and mobile app development company creating intelligent, scalable, and user-friendly digital solutions powered by innovation and AI. [... view Appther profile ]- Location
- Signal Hill, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $22/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 1 Project Listed
Innovate, Create, Excel.
SoftGrid Computers is a prominent custom software development company that excels in blending the latest technologies with well-organized creative work. With a strong focus on understanding client needs and delivering optimal solutions, we strive to be a reliable partner that offers great value for money. Our [... view SoftGrid Computers profile ]- Location
- Santa Monica, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $49/hr
- Minimal Budget
- $1,000 - $10,000
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