Top 100 Smart Contract Companies

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Top 100 Smart Contract Companies

January 2023

Looking for a top smart contract developer?

A smart contract is software for managing digital transactions such as the exchange of cryptocurrencies. The transaction only occurs when pre-defined conditions are met, which means smart contract computer programs must define rules and enforce them. 

Jump to Most Reviewed Companies

List of the Best Smart Contract Developers

  • 1
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 250 - 999 employees
    • Hanoi, Vietnam

    SotaTek JSC is an AI and blockchain development company based in Hanoi, Vietnam, with offices in Tokyo and Osaka, and Costa Mesa, Calif. The company, founded in 2015, has more than 500 employees and provides blockchain, custom software development, mobile app development, web development, AI, e-commerce development, and IT strategy consulting services. SotaTek serves mid-market and other-sized companies in various industries that include arts & entertainment, business services, and automotive.

    Clients

    • Klaytn Foundation
    • XinFin
    • Xeno Global
    • PolkaFoundry

    Industries

    Notable Project

    SOTATEK JSC used PHP, NodeJS, and React Native to develop a crypto exchange for a software development company. They created its logo, features, functionalities, and more. 

    "They fulfilled our requirements and propose innovative solutions to ensure that the final product was excellent."

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  • 2
    • $10,000+
    • 250 - 999 employees
    • Hanoi, Vietnam

    Headquartered in Hanoi, Vietnam, NewWave Solutions has been a trusted Software Development company since 2011. Their services include web development, application management & support, and mobile app development in addition to IT strategy consulting, custom software development, AI, and blockchain.

    Clients

    • UNDP
    • Axelor
    • Vingroup
    • GeekyAnts

    Industries

    Notable Project

    Newwave Solutions helped a caregivers marketplace develop an MVP mobile application in iOS, Android, and desktop versions. They utilized Flutter based on the client's requests and handled the entire process.

    "Our app was constantly buggy."

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  • 3
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      4.9
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 50 - 249 employees
    • Kyiv, Ukraine

    Peiko is an IT development company located in Kyiv, Ukraine. Comprising 19 employees, they develop software solutions for various sized companies in IT, business services, finance, and healthcare. Services include frontend and backend development, UX and UI design, database management, testing, QA, and website management.

    Clients

    • OrionProtocol (Top 250 Cryptocurrencies on CoinMarketcap. The first gateway to the entire crypto market: aggregating every CEX, DEX, and swap pool into one decentralized platform. The market cap of ORN is 250 000 000$)
    • LocalAway (Silicon Valley marketplace)
    • Riabu, ContactsBook, Investros Exchange (SaaS projects of HongBao Media)
    • GS Diamonds (Australian gewelry eCommerce)

    Industries

    Notable Project

    Peiko has designed and developed a website for a blockchain platform. They’ve built the site from scratch using Figma and Visual Basic; the platform allows investors to trade tokens in a decentralized manner.

    “The team is well-structured, organized, and experienced in their area.”

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  • 4
    • Scheduling

      4.8
    • Quality

      4.8
    • Cost

      4.7
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 250 - 999 employees
    • London, United Kingdom

    Established in 2007, Systango Technologies is a global digital product development agency. They are headquartered in London and have additional international offices. Most clients are small businesses, many of which are in the entertainment, utilities, and hospitality sectors. 

    Clients

    • MGM
    • Target
    • Grindr
    • Deloitte

    Industries

    Notable Project

    Systango created a multimedia-streaming prototype to support music sharing, completing all backend tasks and expanding designs for iOS and Android. They currently assist with feedback incorporation. 

    "Systango met my expectations on all fronts."

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  • 5
    • $50,000+
    • 50 - 249 employees
    • Bengaluru, India

    Wow Labz is a web and app development company based in Bangalore, India. Founded in 2011, the team of 63 specializes in mobile app development, web development, and UX/UI design. They work primarily with small business and enterprise clients, mainly in the consumer products and services industry. 

    Clients

    • AB InBev
    • Emaar Group
    • Schneider Electric
    • Star Group

    Industries

    Notable Project

    Wow Labz handled the development of a mobile app for iOS and Android, and for the website as well. They provided several resources on a flexible basis.

    "They are a reliable product partner in a very competitive environment."

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  • 6
    • Scheduling

      4.8
    • Quality

      5.0
    • Cost

      4.8
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 50 - 249 employees
    • Wrocław, Poland

    4soft is a software house headquartered in Wroclaw, Poland with another office in Dubai, the UAE. Founded in 2013, 4soft's team of 70 employees provides web development, UX/UI design, and custom software development services, having a particular focus on blockchain technology.

    Clients

    • Elliptic
    • Gigaset
    • Artgeist
    • ITSEC Asia

    Industries

    Notable Project

    4soft (formerly Look4App) is developing a website where users can nurture their spiritual development by sharing audio and video content. The team is also working on an API for the mobile version of the portal.

    “They have done a good job so far.”

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  • 7
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      4.9
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 50 - 249 employees
    • T'bilisi, Georgia

    MetaLamp is a website development firm. Established in 2014, the midsize company is located in Tomsk, Russia. Their services include web development, blockchain, IT staff augmentation, and mobile app development.

    Clients

    • Focused on blockchain development and working with blockchain-startups

    Industries

    Notable Project

    MetaLamp has helped to build a cryptocurrency exchange platform for a software development company. They’ve worked on smart contracts and the blockchain part, using Solidity for development.

    “The work is smooth. We receive excellent results.”

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  • 8
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.9
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 50 - 249 employees
    • New York, NY

    PixelPlex is a software and blockchain development company headquartered in New York City, with offices in London-UK, Pfäffikon-Switzerland, Tokyo-Japan, and Seoul-South Korea. Founded in 2007, the team of 130+ specializes in blockchain, custom software development, and mobile app development. They work mostly with enterprise and mid-market clients, primarily in the financial services industry. 

    Clients

    • Microsoft
    • Oracle
    • BMW
    • Intel

    Industries

    Notable Project

    PixelPlex designed and developed an NFT marketplace for a technology company. They built the product from scratch using C++, C#, Solidity, and an Ethereum smart contract.

    “Communication was their biggest strength. They kept us in the loop and informed us of the project status.”

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  • 9
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 50 - 249 employees
    • Kyiv, Ukraine

    EvaCodes is a full-stack custom software development company based in Kyiv, Ukraine. The company, founded in 2019, has a team of more than ten that provides custom software development, web development, mobile app development, blockchain, and e-commerce development services. EvaCodes serves mid-market and small companies in various industries that include business services, financial services, and consumer products & services.

    Clients

    • Synesis One
    • Yop Finance

    Industries

    Notable Project

    EvaCodes provided software development services for an NFT company. They audited the client's smart token contracts and decentralized their system. They also provided cybersecurity services.

    "EvaCodes discovered these vulnerabilities and ensured a good future for our project."

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  • 10
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 50 - 249 employees
    • New York, NY

    Infograins Software Solutions Pvt. Ltd. Is a small blockchain company based in Indore, India. Established in 2011, the team provides blockchain, mobile app development, Artificial Intelligence, IoT development, and more.

    Industries

    Notable Project

    An IT company hired Infograins to add new features to their existing iOS app, which they had built two years earlier. The client wanted to update the app and add 400 airport terminal maps from around the world.

    "The process they had was impressive."

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  • 11
    • $5,000+
    • 1,000 - 9,999 employees
    • St. Petersburg, FL

    Innowise Group is a custom software development company based in Warsaw, Poland. With more than 1000 specialists on board and 600 projects completed, they use cutting-edge technologies to transform their client's businesses. They are experts in designing and developing tech solutions that will help your company enhance its processes and increase customer satisfaction, thanks to their 15+ years of experience and extensive expertise. They create custom software to fit your unique requirements in terms of timeline, budget, and use case. They handle every step of the development process, from product concept and development to testing, deployment, and support. In addition to building custom software, we also excel in UX/UI design, IT strategy consulting, and staff augmentation.

    Clients

    • Terraces.io
    • Voka
    • Belyagdar
    • Instatsport

    Industries

    Notable Project

    Innowise Group was hired by a SaaS company to support the continuous improvement of their legal technology software. They're tasked with developing new features, fixing bugs, and providing technical support.

    “What stands out the most is Innowise Group’s attention to detail and great range of strong technical candidates.”

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  • 12
    • $25,000+
    • 1,000 - 9,999 employees
    • New York, NY

    Headquartered in New York, iTechArt is a custom software development company with additional offices in Marietta, Ga. and Iselin, N.J. Since 2002, iTechArt has helped startups and fast-growing tech companies fill in their talent gap and create robust web and mobile solutions that users love. To date, iTechArt’s talent pool includes 3500+ engineers with experience in all of the latest technologies.

    Clients

    • ClassPass
    • ZEFR
    • Gain Capital (forex.com)
    • Merkle

    Industries

    Notable Project

    iTechArt assisted with the development of a flagship mobile app (iOS and Android), allocating a specialized resource for each platform version. The team now provides QA testing and updates as needed. 

    "iTechArt can scale with us as we grow, and they can do it fast."

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  • 13
    • Scheduling

      4.8
    • Quality

      4.8
    • Cost

      4.8
    • NPS

      4.8
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 50 - 249 employees
    • Los Angeles, CA

    Founded in 2013, SoluLabs is a mobile app and custom development firm based in Ahmedabad, India. SoluLabs currently employs more than 60 developers with a range of specialties – from mobile app development to blockchain to IoT development to SaaS product development.

    Clients

    • Casting Workbook
    • Cambridge University
    • UnionEdge
    • Igniter100

    Industries

    Notable Project

    SoluLab developed an iOS and Android app in two weeks with the same code base. The app has three distinct types of users: mentors, entrepreneurs, and program administrators. Mentors provide feedback and advice to entrepreneurs and the administrators administer the programs that support entrepreneurship. The app, MELSTM, makes the interaction between mentor and entrepreneur more effective and efficient while collecting information on meetings, topics, and action for use in improving the entrepreneurship programs. Since the original prototype, the client has used SoluLab for additional features. 

    "The SoluLab team is quite receptive; I haven't had a struggle with them, as I've had with others who have tried to tell me what to do."

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  • 14
    • $10,000+
    • 50 - 249 employees
    • Rīga, Latvia

    Crypton Studio is a software company based in Riga, Latvia, and founded in 2015. With over 10 employees, they offer blockchain, mobile app development, and web development solutions to small and medium-sized businesses alike.

    Clients

    • Decimal, Samurai, Workquest, BitTeam, Polylastic, Decentraland.

    Industries

    Notable Project

    Crypton Studio has designed the UI for a cryptocurrency company's product, and they're now developing it. They're building the solution in the Polygon platform using smart contracts and running security tests.

    “We’ve worked with other developers in the past, and Crypton Studio is the best provider we’ve had.”

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  • 15
    • $10,000+
    • 50 - 249 employees
    • Sahibzada Ajit Singh Nagar, India

    Antier Solutions was founded in 2009. They are a software developer based in Punjab, India. Their team of 110 employees specialize in blockchain, mobile app, and web development for primarily midmarket businesses in the advertising, business services, and customer products industries.

    Clients

    • 121with - UK
    • Pocial-California
    • Zon-US
    • AHG Group-Australia

    Industries

    Notable Project

    Antier Solutions built a crime-reporting app for iOS and Android. They also performed back end work to link the app to a database.

    “They find innovative ways to apply new technological advances in order to resolve problems.”

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  • 17
    • Scheduling

      4.7
    • Quality

      4.9
    • Cost

      4.8
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $50,000+
    • 50 - 249 employees
    • Warszawa, Poland

    Headquartered in Warsaw, Poland and with an office in Atlanta, GA, 10Clouds has built software for businesses worldwide since 2009. The team of 120+ focuses on web development, software development, and DevOps services for scaleups and enterprise clients.

    Clients

    • Emergent Technology
    • Aleph Zero
    • Trust Stamp
    • Omise

    Industries

    Notable Project

    10Clouds developed various research-based products using Python and Amazon Mechanical Turk. They delivered work on user interfaces, software infrastructure, and back-end work.

    "They offered a good skill set, a long-term relationship, and competitive pricing."

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  • 18
    • $5,000+
    • 250 - 999 employees
    • Kolkata, India

    Capital Numbers is a digital production outsourcing company headquartered in Kolkata, India, with additional locations in Beerwah, Australia, Dover, Del., and the U.K. The company was founded in 2012, and has a team of nearly 300 people who provide web development, custom software development, mobile app development, and e-commerce development. They provide services mostly to mid-market businesses, but also to enterprise and small businesses. The businesses they serve are in different industries including the advertising & marketing, business services, and financial services industries.
     

    Clients

    • Consumer Reports
    • Fundation
    • Thomson Reuters
    • HelloBar

    Industries

    Notable Project

    Capital Numbers provided website development services for an educational platform. They developed plug-ins and redesigned the style to match the site's new functionalities.

    "Their team was very flexible, allowing me to do small projects one at a time."

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  • 19
    • $50,000+
    • 50 - 249 employees
    • San Francisco, CA

    Cheesecake Labs is a software design and engineering partner that builds tech products. With locations in California and Brazil, they have been building apps since 2013. Their multidisciplinary team of 100+ designers, engineers, and project managers collaborate with clients to deliver software solutions. The company offers full-service development for iOS, Android, and Web platforms, including UI/UX design, backend engineering, project management, testing, launching, and maintenance.

    Clients

    • MercadoLibre
    • Cargill/Agriness
    • Sodexo
    • AES Corporation

    Industries

    Notable Project

    An NFT marketplace company needed additional support to develop their web application. Cheesecake Labs worked on frontend development using React, Next.js, and Typescript for the app.

    “We had a great experience.”

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  • 20
    • $10,000+
    • 250 - 999 employees
    • CALIFORNIA, CA

    Headquartered in India, Suffescom Solutions is an IT firm skilled in web design, web development, and e-commerce development. The team of more than 60 employees serves mostly small and mid-market businesses in the IT, real estate, and advertising and marketing industries.

    Clients

    • Morgan Elliott
    • PC Doctor
    • Unimilk
    • LIndsey Reishman Real Estate

    Industries

    Notable Project

    Suffescom developed a website for a multi-service beauty salon. The team created a detailed portfolio of the salon’s services, designed the site, and ran marketing campaigns to increase brand awareness. 

    "They took every suggestion into consideration and acted upon it immediately."

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  • 21
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.8
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 50 - 249 employees
    • London, United Kingdom

    Unicsoft is a blockchain and artificial intelligence development company headquartered in Kyiv. Founded in 2005, the team of 120 experts specializes in blockchain, AI, big data, predictive analytics, cryptocurrency solutions, custom software development, web, and mobile development. They provide fully-managed and dedicated team services for the sustainable growth of SME and start-ups, primarily in the supply chain and fintech industries.

    Clients

    • MakerDAO
    • SoccerCoin
    • Hoodifood
    • Niftables

    Industries

    Notable Project

    Unicsoft built an iOS application that integrated KMZ airport layouts onto the Apple Maps platform and allowed users to pinpoint their location. They developed the original UI and the backend.  

    "The attention to detail from the Unicsoft team was second to none."

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  • 22
    • Scheduling

      4.8
    • Quality

      5.0
    • Cost

      4.7
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $50,000+
    • 10 - 49 employees
    • Fortitude Valley, Australia

    Labrys is a blockchain development and consulting company located in Brisbane, Australia. Founded in 2017, they continue to provide blockchain, custom software, and mobile app development services. They have about 11 employees.

    Clients

    • TracerDAO
    • Swell Network
    • EarthFund DAO
    • Downer Group

    Industries

    Notable Project

    A bitcoin brokerage service chose Labrys as a partner to take charge of the application design and development, as well as the management of their project.

    "Their ability to understand our problem, then go and efficiently solve it is impressive."

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  • 23
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.7
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 50 - 249 employees
    • Lauderdale-by-the-Sea, FL

    AMS LLC is a development agency in Cherry Hill, N.J. and Minsk, Belarus. Founded in 2017, they have about 20 employees that serve mostly small-business and midmarket clients in the transportation, education, and financial sectors. Their services are specialized in mobile app development.

    Clients

    • Sandbox
    • Lil Durk
    • General Electric
    • Square Inc.

    Industries

    Notable Project

    Interexy designed the product’s UI and developed a mobile application and an admin panel for a mental health platform. The app was an onboarding system for patients that used bank IDs to log in.

    “It was a smooth process and a good collaboration overall.”

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  • 24
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.7
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • Undisclosed
    • 250 - 999 employees
    • Wilmington, DE

    Apriorit is a software product engineering company founded in 2002 with offices in Dover, Del., and Budapest, Hungary. Apriorit boasts a team of more than 200 employees who are well-versed in custom software development, web development, and mobile app development. 

    Clients

    • Fortune 500 security solution vendors
    • Fortune 500 virtualization technology vendors
    • SaaS solution providers (CRM
    • HR

    Industries

    Notable Project

    Apriorit provides development resources for a B2B software provider, working on various projects. The partnership’s goal is to use outsourced developers to create a team that is available at all hours.

    "From end to end, they take projects on and don't allow for gaps or miscommunications."

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  • 25
    • $75,000+
    • 250 - 999 employees
    • Charlotte, NC

    Dualboot Partners is a product design and software engineering company founded in Raleigh, N.C. in 2018 with over 50 professionals. They offer custom software development and application testing solutions for various clients.

    Clients

    • DebtBook
    • PetScreening
    • MyWorkChoice
    • Elevation Church

    Industries

    Notable Project

    Brought in to revamp and continue the development of a software MVP, Dualboot Partners took the project of a biomedicine company and are translating it into a highly-complex platform.

    "They've demonstrated supportive, understanding flexibility throughout to process."

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  • 26
    • Scheduling

      4.9
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 50 - 249 employees
    • Warszawa, Poland

    Plavno, a website development firm, is based in Nur - Sultan, Kazakhstan. They offer web development, mobile app development, and blockchain and were founded in 2007.

    Clients

    • Mercedes, Xerox, Kia, eBay, PayPal, Amazon , IBM, Bank, Mediacube

    Industries

    Notable Project

    Plavno built a software development firm's travel app for iOS and Android. They designed the UI/UX, integrated payment gateways, and implemented registration, booking, translation, and other features.

    "The tools and wireframes they created were highly relevant and effective."

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  • 27
    • Scheduling

      4.9
    • Quality

      5.0
    • Cost

      4.5
    • NPS

      3.5
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 250 - 999 employees
    • Kharkiv, Ukraine

    Zfort Group is a full service IT provider based in Kharkiv, Ukraine with offices in the U.S., the U.K., and Australia. Founded in 2000, Zfort's team of around 200 employees provides web development, custom software development, and blockchain services to small and mid-market businesses in a wide variety of industries. 

    Clients

    • Online.io
    • EzyMath LLC
    • CharityCheckout
    • SystemHUB

    Industries

    Notable Project

    Zfort Group implemented a CMS into a complex, outdated, hard-coded website. The team spent hours analyzing the structure and code before providing a solution. They now maintain the system.

    "They are able to really put themselves into the customer's shoes."

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  • 28
    • Scheduling

      4.7
    • Quality

      4.7
    • Cost

      4.7
    • NPS

      4.7
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 50 - 249 employees
    • Cincinnati, OH

    The NineHertz is a 200+ mobile app and web development company based in Jaipur, India with offices in Australia, Dubai, California, and Cincinnati, OH. The team has created thousands of apps for small to midsize businesses since its start in 2008.

    Clients

    • JMRC (Jaipur Metro Rail Corporation)
    • Casio  Samsung Reliance Jio Air Asia

    Industries

    Notable Project

    The NineHertz was hired by a wildlife conservation and management company to design and build a website and membership platform. Donations would be received through the site and would be converted to points. 

    "The ability to see beyond what has been requested was my greatest admiration for the team."

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  • 29
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 10 - 49 employees
    • Buenos Aires, Argentina
    Rather Labs, Inc. Is a small blockchain company based in Buenos Aires, Argentina. They focus on blockchain, IT staff augmentation, and custom software development and were founded in 2020.

    Clients

    • Nervos Foundation
    • Gravity Gaming
    • Mantial

    Industries

    Notable Project

    Rather Labs, Inc. was hired by a crowdfunding platform to develop an MVP app as well as a crowdfunding site. Their goal is to help the client plan their entry into the blockchain system.

    "Working with rather Rather Labs has saved us a lot of time and money."

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  • 30
    • $25,000+
    • 50 - 249 employees
    • L'viv, Ukraine

    Lionwood Software is a software development agency located in Lviv, Ukraine. Since 2017, their team of 24 has been specializing in custom software, web, and e-commerce development for primarily small businesses. 

    Clients

    • Digital agencies
    • small and medium-sized businesses
    • YouTeam
    • Shyft

    Industries

    Notable Project

    A construction materials delivery firm hired Lionwood.software to build a Flutter app for their drivers. They improved the client's mock-ups, implemented them, and connected the app to their existing backend.

    "We look forward to working with them again to add new features down the road."

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