Top Ethereum Blockchain Companies
List of the Best Ethereum Blockchain Firms

By being bold about putting user needs first.
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$5,000 +
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10 - 49
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$100 - $149 / hr
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US, New York City
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A modern mobile app development agency, headquartered in Montreal, Canada. Underlabs has established itself as a reliable software provider for businesses, start-ups, and organizations.
Software engineers at the heart of the company deliver enterprise and entrepreneurial startups App development solutions, designing user flow, interfaces, as well as decentralized blockchain apps with Artificial intelligence services.
Build native cross-platform iOS & Android apps with our stellar app developers, with over a decade of experience entrusted by Canada's largest international airports (YUL), international organizations (IATA), as well as fortune 500 companies, such as Morgan Stanley and Kronos.
Underlabs is an agile company of software engineers and developers, profoundly embedded by academics in artificial intelligence, and user experience (UX) design for digital products.
We help businesses create apps and digital products while specializing in the development and design of apps for iPhone and Android phone, tablets and wearables. We also develop centralized cloud server back-end APIs, as well as decentralized blockchain smart contracts on public and private blockchain networks.
We are app developers for Canada's largest enterprises. Although you may not see our name in these apps, we treat everyone like they're our own.
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$25,000 +
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10 - 49
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$100 - $149 / hr
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CA, Montreal
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$5,000 +
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10 - 49
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$25 - $49 / hr
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EA, Tallinn
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Velmie is a financial technology provider with more than 10 years of expertise in developing software and providing professional services. We power enterprise banks and Fintech firms on four continents, setting up our clients with advanced and competitive solutions. White-Label Software to Start and Scale Our software comes as a combination of back-end services, mobile applications, web front-end for clients and administrators, and an extensive API for developers. We handle ongoing maintenance and technical support, thus, our clients feel confident while staying focused on their business.
- Core banking platform;
- White-label digital wallet;
- International remittance platform powered by Currencycloud API;
- Crypto Exchange Software.
Banking and Fintech Product Development Unlike many other development agencies, Velmie is fully focused on the Fintech industry. Our team of in-house professionals effectively handles every step of the development process by applying technical, business, and compliance expertise. Services:
- Mobile app developers
- Back end developers
- Front end developers
- DevOps
- QA teams
- UI/UX design
- Ongoing support and maintenance
Major Technologies: Golang; Flutter: Angular, React; MySQL, MongoDB Delivery Models:
- End-to-end delivery to hand off the entire process of product development to skilled professionals.
- Dedicated teams & staff augmentation to maximize the efficiency of your in-house team with fintech experts.
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$50,000 +
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50 - 249
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$50 - $99 / hr
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US, Wilmington
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Venture Aviator offers highly customized IT software solutions – we have the agility to grow a new startup and the capacity to scale a growth company. We have a talented and experienced team of designers, software technologists and project delivery managers spanning the full range of leading development technologies and methodologies in web, mobile and enterprise applications. Venture Aviator creates a diverse range of leading-edge web, mobile , blockchain development, and enterprise applications to meet the fast-changing needs of our clients in the digital marketplace.
Venture Aviator is an innovative software development company that helps early stage and enterprise companies build and execute their vision. Venture Aviator has capabilities in Web Development, Mobile Development, Blockchain Development, Full-Service Initial Coin Offering (ICO) advisory, Cryptocurrency launches, and Artificial Intelligence. Venture Aviator was recently named as one of the Top Custom Software Development Companies by Clutch for 2017. Clients range from Fortune 500 companies like Allianz and Cisco to award-winning startups. Our team brings a unique combination of technology expertise, design and engineering talent, strategic business insight and new venture acceleration experience, coupled with an extensive global network of trusted relationships and partners to help our clients achieve rapid growth and build their products cost effectively.
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$25,000 +
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10 - 49
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$50 - $99 / hr
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US, New York City
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Our team is passionate about building topnotch applications for iPhone/iPad and Android devices. We build complex database driven websites that leverage Ruby on Rails for rapid development of fully tested, scalable web applications. We are developing new tools and services for our clients. There is nothing more exciting than to watch a startup succeed. We want to be part of it, and we can help by developing great software.
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$1,000 +
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2 - 9
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$50 - $99 / hr
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US, Greenwood Village
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WebClues InfoTech is a one-stop IT solutions provider that specializes in creating wonderful websites and applications for various industries. Our team of brilliant individuals combines years of experience with an eye for beautiful designs to create robust, user-friendly websites and mobile applications that help businesses attract customers. Our work includes: Web Development Our web development team is one of the best in the world having years of experience creating hundreds of websites for various clients across the globe Mobile App Development WebClues InfoTech has a huge team of developers who are highly experienced in all platforms of mobile app development and we strive to create innovative mobile applications for each of our clients. UI/UX Design Our team believes that UI UX is the soul of the product and thus we ensure that the designs for both websites and mobile applications are impeccable and eye catching. Marketing Our teams of marketing experts include SEO specialists, Brand managers, and content writers all of whom combine to help a company build its online presence through various marketing activities. We stay true to our motto "Your Vision, Our creation" by assuring that your vision is hand crafted by us to form a beautiful creation that fulfills its needs through its simple yet effective features.
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$5,000 +
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50 - 249
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< $25 / hr
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US, Atlanta
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Winterwind is a leading software development agency from Canada. All Winterwind developers are in-house and work under the mentorship of Anthony who has worked as senior web developer from 2008-2016, as well as a blockchain developer from 2017-2018. From 2018 to the present, Anthony has overseen a range of large-scale, complex projects within Winterwind such as The Pushup Challenge, one of Australia's most popular charity drives raising millions of dollars per year for mental health.
We also worked on Prosperty, a real estate portal based in Greece, as well as the front-end and back-end development for OneSocial, an upcoming competitor to LinkTree.
Some of Anthony's notable achievements prior to Winterwind include working as the lead web developer of Juwai.com in 2014, a high-traffic real-estate website from China. He was also a senior developer for Disney in 2013 and helped launch the Disneyland Paris and Disneyland Hong Kong websites. Our main areas of expertise are in Laravel and WordPress development, database design, AWS hosting, website and app design and creating responsive websites.
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$10,000 +
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10 - 49
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$25 - $49 / hr
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CA, Vancouver
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