Top 100 Smart Contract Companies

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Top 100 Smart Contract Companies

June 2022

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. 

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List of the Best Smart Contract Developers

  • 31
    • $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 is developing crypto exchange software for a blockchain fintech company. The team is in charge of building a white-label software structured around various financial models.

    "We feel very safe and comfortable working with Antier in the Fintech space where trust is the most important aspect."

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  • 32
    • 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 is developing three web applications that can supplement a media training consultancy’s services. The team is also rebuilding the client’s website to allow for complex, multi-stakeholder access.

    "Peiko’s communication is pretty good. They provide necessary follow-ups and chase us for clarification."

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  • 33
    • $5,000+
    • 250 - 999 employees
    • Vienna, VA

    Accubits Technologies Inc. is an AI and blockchain development company headquartered in Vienna, Va., with an office in Kerala, India. Founded in 2012, Accubits Technologies' team of 79 employees provides blockchain, AI, and AR/VR development services primarily for small and midmarket businesses.

    Clients

    • Dubai Land Department
    • Smart Dubai
    • Dubai Police
    • Eduvalue

    Industries

    Notable Project

    In efforts to improve business productivity, a pharmaceutical company hired Accubits Technologies Inc to develop an application that automates their data gathering and management process.

    "They would always come up with a solution that would ease our job to a great extent."

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  • 34
    • Scheduling

      5.0
    • Quality

      4.8
    • Cost

      4.5
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $50,000+
    • 250 - 999 employees
    • Charlotte, NC

    Dev.Pro is a software engineering services firm that helps technology companies meet their growth ambitions through talent outsourcing. Based in Kharkiv Oblast, Ukraine, and founded in 2011, their team of more than 600 skilled specialists offers a wide range of technical expertise, including cloud, DevOps, and test automation services.

    Clients

    • Inveniam: Digital Certification of Financial Assets
    • SalesLoft: Sales Engagement Platform
    • Securrency: Interoperating System Optimizing Financial Logistics
    • Cureatr: Platform For Secure Messaging Between Clinicians

    Industries

    Notable Project

    Dev.Pro provides a SaaS company with product development services. They’ve delivered new features, including a framework for a template to help with sales. Dev.Pro also does design work and project management.

     

    "The best part of working with Dev.Pro is how much they care about the work that they’re doing."

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  • 35
    • Scheduling

      4.9
    • Quality

      5.0
    • Cost

      4.9
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 10 - 49 employees
    • Split, Croatia

    Blank is a software agency based in Split, Croatia with no more than 50 professionals. They are experts in custom software, web, and mobile app development services for clients ranging from small firms to large companies in the fields of business and financial services.

    Industries

    Notable Project

    Blank developed a custom software application and migrated the AngularJS framework into React for a custom intelligence platform. They also reimplemented, improved, and added new features to the web app.

    "Blank was willing to take on anything. The communication was very easy and friendly."

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  • 36
    • Scheduling

      4.8
    • Quality

      4.8
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 50 - 249 employees
    • San Jose, CA

    Matellio is a mobile and web app development company founded in 2012. Headquartered in San Jose, Calif., Matellio's team of around 40 specialize in web and mobile app development.Although Matellio encountered unexpected challenges that led to minor delays, the client appreciated their clear communication.

    Clients

    • Startups
    • Fortune 500 Companies
    • Entrepreneurs
    • SMBs

    Industries

    Notable Project

    A digital business card platform had gone through a few development teams to help them with the technical side of the business. They hired Matellio to design their app architecture and assist with UI/UX.

    "To them, it isn't about the money. It's about client respect and doing amazing work."

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  • 37
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.8
    • NPS

      4.9
    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 engages in an ongoing software development collaboration with a financial consulting firm. Their full stack development has included work in cryptocurrency, blockchain, and secure financial trading.

    "They deliver on time and within budget, with the best backend and frontend solutions and the greatest ROI."

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  • 38
    • Scheduling

      4.9
    • Quality

      5.0
    • Cost

      4.8
    • NPS

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

    Mad Devs is a digital development company based in Cambridge, England, and founded in 2016. Their team of 35 employees specializes in custom software development, web development, and cloud consulting. They mainly work with small businesses and midmarket clients in the consumer products, education, and business services industries.

    Clients

    • SJMC
    • Clutch
    • Edentity
    • Alfabank

    Industries

    Notable Project

    Mad Devs created a website for an EdTech company. The team implemented a learning management system, Admin Panel, and Payment Software that enabled students to take online courses at home.

    "We were always sure to get help and guidance on the features and discuss our worries and plans."

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  • 39
    • Scheduling

      5.0
    • Quality

      4.5
    • Cost

      4.8
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 10 - 49 employees
    • Kharkiv, Ukraine

    RedDuck is a small blockchain company. They offer blockchain, Artificial Intelligence, web development, and custom software development and were launched in 2020. The company is located in Kharkiv, Ukraine.

    Industries

    Notable Project

    RedDuck provides web development services for a blockchain startup. They’ve built a blockchain crime game using Phantom, working on PHP development and design. They currently provide maintenance and updates.

    "We’re happier with RedDuck than with all the companies we’ve worked with in the past."

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  • 40
    • $5,000+
    • 50 - 249 employees
    • Palo Alto, CA

    HashCash Consultants is a software company based in Fremont, Calif. Their team of fewer than 50 employees is distributed across locations in Palo Alto, Calif. and Melbourne, Australia. They serve small to midmarket businesses in industries such as financial services and IT. Services include blockchain development, BI, & big data consulting.

    Clients

    • Corporates
    • Domestic Payment Networks
    • Fintech companies and Currency exchanges use the HC Network for Retail Remittances
    • Trade Finance

    Industries

    Notable Project

    HashCash Consultants was brought in to develop a drug traceability software and a crypto trading platform.

    "The project management is good, they regularly meet their deadlines."

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  • 41
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.7
    • NPS

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

    SoftwareMill is a software and consultancy company based in Warsaw, Poland. Founded in 2009, they have 40 employees who provide services including custom software development, big data consulting, blockchain development, and AI. 

    Clients

    • Paidy
    • Reco.se
    • SwissBorg
    • Intelli Messaging

    Industries

    Notable Project

    SoftwareMill helped develop a web app that detects a person's skin type and color for an e-commerce solutions company. The team worked on AI and ML algorithms, as well as Shopify and Google Cloud integrations.

    "Their professionalism and vast knowledge of AI and ML were impressive."

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  • 42
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.7
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 2 - 9 employees
    • London, United Kingdom

    Binary Mango is a mobile app development platform that's based in London. Since 2016, their team of fewer than 10 have provided mobile app as well as AR/VR development assistance to mid-market and enterprise-level clients in the fields of consumer products and advertising. 

    Clients

    • GetLeslie
    • Whering
    • Medishout
    • Fundspace

    Industries

    Notable Project

    A health and wellness platform hired Binary Mango to provide mobile app development. They replicated the design that the client handed to them to build a meditation music player.

    "They’re outstanding on all fronts."

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  • 43
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.9
    • NPS

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

    Founded in 2016, IdeaSoft.io is a software development firm that offers custom software development, blockchain, and web development services to their clients in the IT, business services, and education industries. Their 250 employees are based out of offices in New York, NY and Kharkov, Ukraine. .

    Clients

    • Porsche
    • Bittrex
    • Securitize
    • Neura

    Industries

    Notable Project

    Ideasoft.io develops custom software for a cross-chain yield aggregation platform. They need to build a yield-bearing solution, which they will deploy in an ETH: mainnet protocol.

    "Their grit and accommodation have been impressive."

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  • 44
    • $25,000+
    • 2 - 9 employees
    • Los Angeles, CA

    Based in Los Angeles, California, Dreamers Inc. Is an AI company. The small team provides Artificial Intelligence, custom software development, mobile app development, IoT development, and more and was established in 2013.

    Industries

    Notable Project

    Dreamers Inc. was hired to provide custom software and blockchain development for an e-commerce platform. The team acts as an external resource to implement blockchain technology into their product.

    "Dreamers Inc. is the best professional blockchain solutions resource I’ve ever encountered."

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  • 45
    • Scheduling

      4.8
    • Quality

      4.5
    • Cost

      4.4
    • NPS

      4.8
    Read Full Reviews on Clutch Visit Site
    • $100,000+
    • 250 - 999 employees
    • Oslo, Norway

    Located in Oslo, Norway and Colombo, Sri Lanka, 99x is a midsize software development firm. Launched in 2004, the team provides custom software development, mobile app development, application testing, enterprise app modernization, and more.

    Clients

    • SuperOffice AS
    • Carcare Systems Europe AB
    • Kahoot!
    • Hatteland Rambase

    Industries

    Notable Project

    99x was hired to provide custom software development for a practice management system. They migrated the platform's old infrastructure for the customer's seamless experience and modernized its frontend aspect.

    "They provided a lot of personality to the organization and working with them has been a positive experience."

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  • 46
    • $5,000+
    • 50 - 249 employees
    • Kharkiv, Ukraine

    Code Generation is a software company founded in Kharkiv, Ukraine in 2017 with over 10 employees. They are experts in custom software, web, and mobile app development services for small businesses in the fields of healthcare, education, and business services.

    Clients

    • IBM
    • HomeLike
    • Atlassian
    • Awes Ventures LLC

    Industries

    Notable Project

    Code Generation built custom software for a tab management company. The team needed to implement a new feature in the client's Chrome extension using React, TypeScript, Node, and MongoDB.

    "Their communication was impeccable."

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  • 47
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.8
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 10 - 49 employees
    • Montevideo, Uruguay

    Launched in 2007, Infuy is a blockchain company. The company specializes in blockchain, web development, architectural design, IoT development, and more and has a small team.

    Industries

    Notable Project

    Infuy is developing a mobile app for a health and wellness platform. They have designed the UI/UX of the mobile app according to the client's requests and continue to support them with further developments.

    "They always show attention and care to us, advising us on things they think are good and worth doing."

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  • 48
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      4.9
    • NPS

      5.0
    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 LLC is developing a mobile app for a print and publishing company.  The client works with a business analyst, a designer, and a team of developers.

    "Any challenges are promptly communicated. Resolutions and workarounds are provided."

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  • 49
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.7
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 50 - 249 employees
    • San Francisco, CA

    Azumo is a San Francisco based software development services company. They have additional offices in McKinney, Texas and Rosario, Argentina. They were founded in 2016 and have a team of 33 employees. They specialize in custom software development, mobile app development, and the use of AI.

    Clients

    • Twitter
    • Facebook
    • NCSOFT
    • Discovery Channel

    Industries

    Notable Project

    A blockchain company hired Azumo to provide architectural designs. They build a solution for the clients' blockchain initiative.

    "Their professionalism and honesty throughout the project were outstanding."

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  • 50
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 10 - 49 employees
    • Warszawa, Poland

    Imapp is a blockchain company. Established in 2013, the team specializes in blockchain and web development. Their small firm is based in Warszawa, Poland.

    Industries

    Notable Project

    A blockchain company hired imapp to write a smart contract. They were also tasked with supporting the development of a mobile app.

    "We were impressed with their participation in the brainstorming phase of the project."

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  • 51
    • $25,000+
    • 50 - 249 employees
    • Ho Chi Minh, Vietnam

    InApps Technology is a software development company based in Ho Chi Minh, Vietnam. They provide mobile app and web development services as well as UI/UX design. The vendor has been offering services since 2016, and the team currently consists of fewer than 40 employees.

    Clients

    • WAWA GAMES
    • BIDBID
    • VLEPPO
    • PEGAS

    Industries

    Notable Project

    InApps Technology was hired by a computer software company to develop a web dashboard for their existing mobile and TV app. The partners use GitHub and React.js for the project.

    "They've gone above and beyond with little touches to not only make the result usable, but visually appealing as well."

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  • 52
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.8
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 250 - 999 employees
    • Noida, India

    PixelCrayons is a digital consulting and engineering firm headquartered in Noida, India. The company was founded in 2004, and has 51 employees who specialize in custom software development, mobile app development, and web development. 
     

    Clients

    • Vodafone
    • puma
    • ebay
    • hp

    Industries

    Notable Project

    PixelCrayons developed an attendance application for a digital marketing company covering details of employees, working hours, leaves, absences, etc.

    "I am happy with their work."

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  • 53
    • $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 an end-to-end NFT solution provider to develop their custom software. They were hired for their cost-effectiveness and high-quality proposals.

    "They understood the trade-offs between quality and speed that a startup faces perfectly well."

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  • 54
    • $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

    Dualboot Partners is supposed to finish a technical project for a mobile app development company. The team is tasked with reviewing a pre-existing code in its entirety.

    "They have delivered nothing more than headaches and invoices."

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  • 55
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.5
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 10 - 49 employees
    • София, Bulgaria

    LimeChain is a blockchain consulting and development company in Sofia, Bulgaria. Founded in 2017, they have 30+ employees experienced to develop and implement blockchain and DLT technologies. Their main focus is providing end-to-end blockchain services for corporations and startups. Their services include blockchain consulting, design and ideation, prototyping, agile approach to creating a minimum viable project, scaling of the solution for production, and ongoing support for the solution for public and private blockchain projects. 

    Clients

    • P&G
    • Raiffeisen Bank
    • Hedera
    • Polkadot

    Notable Project

    LimeChain developed and implemented Ethereum-based blockchain software solution. They utilized the Blockchain Ethereum and extended the implementation to IOTA and EOS to send information, which originates in a web app they developed, to an IoT device.

    "They’re very proactive and professional and work well with our team." 

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  • 56
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.8
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 50 - 249 employees
    • Boise, ID

    Founded in 2017, Ventive is a digital product agency located in Boise, Idaho. They have a team of 55+ that provides web design, custom software development, UX/UI design, and CRM consulting & SI. 

    Industries

    Notable Project

    Using Drupal and WordPress, Ventive developed an interactive website containing a client portal. The team now provides SEO, AdWords, PPC campaign, and content creation services.

    "They are extremely communicative, punctual, and proactive."

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  • 57
    • Scheduling

      4.6
    • Quality

      4.7
    • Cost

      4.7
    • NPS

      4.7
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 50 - 249 employees
    • Brooklyn, NY

    CemtrexLabs is a creative technology agency in Brooklyn, NY. Founded in 2009, they have about 100 employees that help brands grow with custom digital solutions, ranging from AR and VR applications to design and development services.

    Clients

    • HBO Max
    • Modelo
    • Dropbox
    • Wacoal

    Industries

    Notable Project

    CemtrexLabs was tasked with optimizing a website's page speed, making it mobile responsive, and performing on-site, technical SEO. The project ended after they refused transparency requests into the budget.

    "We don’t want another company like ours to fall into the same trap." 

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  • 58
    • $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 provides mobile app development for an app-based cab service company. The team was hired to build and design the client's app.

    "They do not just listen and do whatever the requirement is but also they do some research on their own."

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  • 59
    • Scheduling

      4.9
    • Quality

      5.0
    • Cost

      4.7
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 10 - 49 employees
    • Dnipro, Ukraine

    Blaize is a blockchain software development company based in Dnipro, Ukraine. The company, founded in 2016, has a team of more than 25 specialists who provide, among others, blockchain, custom software development, and mobile app development services to small and midmarket companies.

    Clients

    • Everstake
    • Pandora Boxchain
    • Quantfury
    • Solana

    Notable Project

    Blaize supported the development of web-and desktop-based wallets for a third-party client. This involved front-and backend development, along with setting up the infrastructure and transaction features.

    "They are very responsible and easily communicate with clients."

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  • 60
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 10 - 49 employees
    • Germantown, MD

    Sailet, a web development company, was established in 2017. Their small team is located in Germantown, Maryland. The company focuses on web development, mobile app development, web design, ux/ui design, and more.

    Clients

    • The World Bank
    • Ministry of Education and Science of the Republic of Kazakhstan
    • BI Group
    • KTZ-Freight Transportation JSC

    Industries

    Notable Project

    Sailet developed a mobile application for an education foundation. They assigned a project manager as the main point of contact.

    "They were patient and willing to walk us through their process while we learned."

    Visit Site

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Based on your budget, timeline, and specifications we can help you build a shortlist of companies that perfectly matches your project needs. Schedule a free consultation with a Manifest Analyst.

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