Top Blockchain & Web3 Development Firms

Code deployed to a public blockchain is hard to change and often holds money, so mistakes cost far more than in ordinary software. Blockchain and Web3 development companies build that code and the products around it: smart contracts in Solidity or Rust, decentralized apps, wallets, token and NFT platforms, DeFi protocols, real-world asset tokenization and private ledgers on Hyperledger Fabric. Fintechs, exchanges, game studios and enterprises hire them to launch a token or marketplace, add crypto payments, or build supply chain and identity systems on a shared ledger.

Compare developers here on audited contracts already in production, the chains they deploy to, and how they handle key management and upgrades.

How this list is built

We evaluate companies on verified profile data: services, pricing, locations, and portfolio. Client reviews are being collected. We may earn a fee for some placements. How we rank and verify

3,786 Companies

List of the Best Blockchain & Web3 Development Agencies

BitAlchemists
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Our experience has shown that a startup doesn't have to shoulder everything alone. It should focus on working more intelligently rather than just putting in more effort. We offer a one-stop lab for all your web, mobile, and embedded software engineering requirements: frontend and backend web solutio
Highlights
$5,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
10-49
Employees
Novi Sad, Vojvodina, Rs
Services Provided+3 Services
10% Custom Web Application Development
13% Mobile App Development (iOS & Android)
10% Backend Development
10% Frontend Development
AI Summary
“BitAlchemists is a technology partner specializing in integrated web, mobile, UI/UX design, blockchain, and embedded software solutions, supporting startups with smart, end-to-end software engineering services.”
Carta Solutions
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At Carta, we deliver tailored solutions designed to address the specific requirements of each client. Leveraging our extensive knowledge in Ecommerce, we provide a wide array of services that include design, development, Ecommerce strategy, and email marketing.
Highlights
$1,000+
Min Project Size
$100-149/hr
Avg Hourly Rate
2-9
Employees
Services Provided+2 Services
43% E-Commerce Development
8% Blockchain & Web3 Development
20% Web App UI Design
12% Wireframing & Prototyping
AI Summary
“Carta Solutions delivers tailored ecommerce and blockchain software development, complemented by comprehensive UI/UX design services to enhance user experience and meet client-specific needs.”
Coding Crafts LLC
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Coding Crafts is a custom software development firm located in San Francisco, established in 2019. We focus on creating mobile applications, progressive web apps (PWAs), artificial intelligence, cloud solutions, software as a service (SaaS), blockchain technology, and no-code options. In over ten ye
Highlights
$10,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
San Francisco, California, Us
Services Provided+13 Services
8% Mobile App Development (iOS & Android)
7% Progressive Web App (PWA) Development
7% Custom Web Application Development
4% Backend Development
AI Summary
“Coding Crafts LLC is a San Francisco-based software firm specializing in custom mobile apps, AI, cloud, SaaS, blockchain, and no-code solutions, emphasizing human-centered design and advanced technologies.”
Whitecode Agency
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Welcome to Whitecode, your portal to exceptional digital success. We take pride in creating extraordinary digital experiences. Our dedication is exemplified by our partnerships with over 500 clients, including both innovative startups and established industry leaders, as well as 300+ affiliate IT ag
Highlights
$5,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Services Provided+4 Services
17% Custom Web Application Development
14% Mobile App Development (iOS & Android)
3% Blockchain & Web3 Development
10% Product UX Strategy
AI Summary
“Whitecode Agency is a full-service digital partner delivering brand identity, product design, and web/app solutions across diverse industries to drive client success and digital growth.”
Brains
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Creating a startup from the ground up is the most challenging phase of the entrepreneurial journey. At Brains, we excel in transforming a basic idea into a startup’s first paying customers. We develop high-impact mobile, web, blockchain, AI, and IoT products tailored for startups, entrepreneurs, and
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Nairobi, Ke
Services Provided+8 Services
10% Custom Web Application Development
11% Mobile App Development (iOS & Android)
4% Blockchain & Web3 Development
5% AI Strategy & Roadmap Consulting
AI Summary
“Brains is a startup-focused technology partner delivering rapid, high-impact mobile, web, AI, and blockchain solutions to accelerate product-market fit, customer acquisition, and business growth.”
Bitmaster
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Enhancing digital transformation through data-focused application development. We integrate, analyze, and identify trends in data sets to develop digital products that accelerate your growth and your business's progress.
Highlights
$10,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
2-9
Employees
London, England, Gb
Services Provided+1 Services
15% Mobile App Development (iOS & Android)
30% Custom Web Application Development
5% Blockchain & Web3 Development
35% Machine Learning Model Development
AI Summary
“Bitmaster drives digital transformation by leveraging data integration and analysis to develop innovative applications and digital products that accelerate business growth and advancement.”
Brivian
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We transform our clients' concepts into reality by utilizing advanced technologies such as AI and computer vision, and we offer advisory services for IT projects. Our expertise is provided through:
Highlights
$10,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
50-249
Employees
Services Provided+2 Services
20% Custom Web Application Development
15% Mobile App Development (iOS & Android)
8% E-Commerce Development
7% Blockchain & Web3 Development
AI Summary
“Brivian leverages AI and computer vision technologies to transform client concepts into practical solutions, providing expert advisory and development services for diverse IT projects.”
NASMAK LABS
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What We Do At Nasmak, we create technology that empowers progress. We offer not just software, but effective solutions that address genuine challenges and make a significant difference. Our Approach We believe that exceptional products are born from understanding rather than assumptions. We collabor
Highlights
$1,000+
Min Project Size
< $25/hr
Avg Hourly Rate
10-49
Employees
Okara, Pk Punjab, Pk
Services Provided+2 Services
20% Custom Web Application Development
18% Mobile App Development (iOS & Android)
10% API Development & Integration
2% Blockchain & Web3 Development
AI Summary
“Nasmak Labs develops tailored web and mobile applications, scalable backend systems, and AI-driven solutions, collaborating closely with clients to create impactful, thoughtful, and scalable digital products.”
V4 Development, LLC.
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We are a comprehensive web and mobile development firm located in Richmond, VA. We embrace ambitious ideas and complex challenges, understanding that there isn't a one-size-fits-all solution. That's why we begin with the fundamentals, creating custom native applications, websites, and systems from t
Highlights
$25,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
10-49
Employees
Richmond, Virginia, Us
Services Provided+4 Services
11% Mobile App Development (iOS & Android)
11% Custom Web Application Development
3% Blockchain & Web3 Development
25% Cloud Consulting & SI
AI Summary
“V4 Development, LLC. is a Richmond-based firm specializing in custom web and mobile applications, offering tailored native solutions developed from the ground up to meet diverse client needs.”
Mechcubei Solutions
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Mechcubei is an expanding software development firm based in India and the USA. Our primary objective is to provide top-notch software development services at competitive prices to our clients. We aim to not only meet but surpass our clients' expectations by delivering outstanding service in line wi
Highlights
$5,000+
Min Project Size
< $25/hr
Avg Hourly Rate
10-49
Employees
St. Louis, Missouri, Us
Services Provided+12 Services
8% Mobile App Development (iOS & Android)
3% Backend Development
3% Frontend Development
2% CMS Development & Customization
AI Summary
“Mechcubei Solutions is a growing India-USA software development firm delivering diverse, high-quality, client-focused services with 24/7 support, ensuring timely, trend-aligned solutions across domains.”

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