List of the Top Smart Contract Developers

  • 1
    $25,000+
    50 - 249 Employees
    New York NY

    PixelPlex is a software and blockchain development company headquartered in New York City, with offices in Amsterdam, Netherlands and Minsk, Belarus. Founded in 2007, the team of 56 specializes in blockchain, custom software development, and mobile app development. They work mostly with enterprise and midmarket clients, primarily in the financial services industry. 

    Clients
    BMW
    Microsoft
    Oracle
    Rise
    Industries
    Notable Project

    PixelPlex worked on smart contract consultation and development for a crowdfunding startup. They built the contract system and created backend processes to enhance communication between the GUI and contracts. The client was impressed with their ability to deliver throughout the project.

    “As for their effectiveness, PixelPlex delivered everything we asked of them on time with no major issues.” – CTO, Crowdfunding Startup 

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  • 2
    $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
    Diamante Blockchain
    Deutsche Bank
    Bank of Mauritius
    ING
    Industries
    Notable Project

    HashCash Consultants provided blockchain app development services to a financial services company. The platform featured bitcoin invoicing, a merchant account management interface, a ticketing system, and more functionalities. The team worked quickly and efficiently, developing an impressive solution. 

    “Once the product was launched, we got tremendous responses from clients who use cryptocurrency.” — Product Manager, Financial Services Company

  • 3
    $100,000+
    50 - 249 Employees
    San Francisco CA

    ArcTouch was founded in 2008 and has offices in San Francisco, Calif., New York, and Florianópolis, Brazil. They excel at app development, blockchain, and UX/UI design. They guide their enterprise clients through the app building process by defining a strategy for the best user experience, planning the visual design, developing and testing the prototype, and ensuring optimization and growth.

    Clients
    Yahoo!
    Adidas
    Audi
    3M
    Industries
    Notable Project

    A California-based content discovery startup hired ArcTouch to design a content discovery platform and iOS app. They provided feedback on the startup's user stories, created wireframes, and developed the platform and app. The project was completed ahead of schedule.

    “We’re astonished at the quality of the work. We’re a small company, and we weren’t expecting the same level of service a Fortune 500 company might enjoy. We were amazed by their design and the effort that went into every screen.” – Senior Project Manger, Content Discovery Startup

  • 4
    $100,000+
    250 - 999 Employees
    Mississauga Canada

    Knoldus Inc. is a computer software company founded in 2010. Based in Mississauga, Canada, they also have offices in Chicago, Noida, India, and Singapore. They have a team of 130 employees and specialize in enterprise app modernization, AI, and BI and big data consulting and SI. 

    Clients
    Google
    Cisco
    HPE
    Philips
    Industries
    Notable Project

    Knoldus helped an online tutoring company re-build the company's existing codebase. The practice was incorporated with respect to Scrum base development. During the 2-month exam season, the product generated more revenue than the cost of the developing the product. 

  • 5
    $10,000+
    10 - 49 Employees
    Sahibzada Ajit Singh Nagar India

    Headquartered in Mohali, India, Debut Infotech also maintains a US presence with its Chicago office. Debuting in 2012, they’ve grown to almost 100 employees who are dedicated to both web and mobile app development.

    Clients
    Best Western
    KFC
    Line Hotel
    Saavi
    Industries
    Notable Project

    Debut Infotech has an ongoing partnership with a leading bank to streamline processes and help the internal team track sales. Debut Infotech developed server-side iOS and Android apps that integrated with the client’s backend custom relationship management (CRM) solution.

    “The application already has 7,000-8,000 users, which speaks to its adaptability, speed, look, and feel.” – Head of Sales, Leading Bank

  • 6
    $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
    Tipser
    HRoBOT
    Zerigo
    Vocado
    Industries
    Notable Project

    SoftwareMill provided a mobile app developer in San Francisco with back-end server development using Scala. The client's project was for the media and communications industry, and they needed a comprehensive software architecture solution for a sophisticated project. SoftwareMill integrated several API's for automating data management, and optimized them for scalability. The client was satisfied both with the quality of results and with the service they received in the partnership.

    "Qualitatively, SoftwareMill has always hit projects on time and on budget. There have been no issues around major delays or cost overruns." - Managing Director, Mobile Development Firm

  • 7
    $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
    Audeze
    Negovation
    Reveal
    121with
    Industries
    Notable Project

    Antier Solutions made a crime reporting app for a public safety startup. They built apps for iOS and Android and linked them to an extant backend database. They finished the apps far ahead of schedule and the client is impressed with the quality of the work.

    “I was impressed with how they’d go out of their way to optimize a product via unique solutions, rather than churning out an inferior product using a standard development methodology.” – Founder, Public Safety Startup

  • 8
    $25,000+
    1,000 - 9,999 Employees
    London United Kingdom

    OTR is an AR/VR development firm in London. They also have an office in Minsk and team of 350+ works with midmarket, small business, and enterprise clients across multiple industries. 

    Clients
    Aeroflot
    Stadler Rail AG
    Alfa-Bank
    Industries
    Notable Project

    OTR developed a VR visualization of a production facility for a software startup company. They created a full-scale simulation of the facility that included a 3D rendering of the facility. The product was a great marketing tool for the client, who was impressed with their communication and openness to help with all elements of the project. 

    "OTR team was always open to communication and ready to assist in everything project-wise. The communication has been always very clear and precise, every step was first discussed and then reported to us." – Head of Marketing, Software Startup Company

  • 9
    $25,000+
    10 - 49 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
    Reverie
    Farebucket
    Pragnya
    Industries
    Notable Project

    Wow Labz worked on application development for a social platform. They developed a mobile app for iOS and Android, and for the website. The client was impressed with the positive feedback the project received. 

    “Everyone who tested it said the app looks very good; it's very simple and easy to use. The app store and Google Play reviews from early users are overwhelmingly positive.” – Founder, Social Platform 

  • 10
    $50,000+
    50 - 249 Employees
    LAS VEGAS NV

    Inn4Science is a blockchain development company headquartered in Las Vegas, with an office in Kharkiv, Ukraine. Founded in 2016, the team of 49 specializes in blockchain, web development, and custom software development. They primarily work with midmarket clients, mainly in the business services, financial services, and marketing industries.

    Clients
    VIPCOIN
    Nanopool
    Winter in Venice
    Industries
    Notable Project

    Inn4Science worked on blockchain development for an online commodity exchange. They provided services including a proof of concept, business analysis, blockchain and web development, design, and technical support. The client was satisfied with the outcome of the project. 

    “Every member of their team was professional and welcomed the use of an agile methodology. The designers captured our ideas perfectly, and the working process was quite seamless and comfortable.” – COO and Co-Founder, Online Commodity Exchange 

  • 11
    $25,000+
    50 - 249 Employees
    Kyiv Ukraine

    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
    Hoodifood
    Executive Eye
    Goforit
    Forte Web Properties
    Industries
    Notable Project

    Unicsoft developed native Android and iOS applications for a network security startup. The end-clients are software developers and system administrators, and the startup needed sophisticated programming expertise. They produced technical specifications and integrated security features into the UX. The client reported that their technical expertise and communication skills exceeded their expectations.

    "Unicsoft was able to quickly work with us to define the necessary product and functionality and then dive in." - Founder, Security Startup

  • 12
    $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
    Arxum
    Propy
    Idoneus
    PnG
    Notable Project

    Limechain developed a blockchain model for a research startup to economize their client’s scientific processes. Limechain provided business logic and methodology for the development of an ICO. Their expertise helped upgrade a contract for the client.

    “They’re knowledgeable and have solved significant problems in the blockchain community. For example, LimeChain upgraded a contract we wanted to deploy and made it reversible.” ­– Head of Development, Research Startup

  • 13
    $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 was hired by a security company to develop a a token bridge that can swap between Ethereum and Hyperledger networks, an application for two-factor authorization that utilizes the company's blockchain and service to keep transaction comments and notifications via Telegram bot, and other later projects. Through this engagement, the company's team and clients feel more assured about data security.

    "With some exceptions, Blaize team always delivered on time and within budget." - CEO, Security Company

  • 14
    $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
    Notable Project

    PixelCrayons provided mobile app development services for a travel domain. The client wanted to increase engagement and revenue. PixelCrayons met and worked closely with the client, and then they used the client’s feedback to create wireframes and prototypes. After launching the app, the app received many downloads, and the client received positive feedback. 
     

    “Within the first few weeks of launch, our app received thousands of downloads. We’ve also received a lot of positive feedback from users.” — Senior Software Developer, IT Company 
     

  • 15
    $5,000+
    10 - 49 Employees
    Warszawa Poland

    EthWorks is a Warsaw, Poland based blockchain app development and design agency founded in 2017. Their 8 employees offer web development, custom software development, UX/UI design, and blockchain development services

    Clients
    Verify
    Dharma
    IOTA
    Ambrosus
    Industries
    Notable Project

    EthWorks was hired by a digital hedge fund to revamp its platform and improve design and user experience. 

    "Ethworks did a fantastic job on the website. It looks very professional and performs much better. Since the team completed this project, our investors have been engaging much more effectively with the platform." —Manager, Hedge Fund

  • 16
    $5,000+
    50 - 249 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
    Dash
    Drinkmate
    Feelshare
    5 Tiles
    Industries
    Notable Project

    A client worked with a Systango freelance developer and was impressed with their work. As a result, they arranged to migrate all their development to Systango from their previous vendors. Systango delivered a sophisticated and functional product much quicker than expected. The team's technical expertise stood out during the project. 

    "The team in India has the necessary protocols, so, even though they've never touched a piece of this hardware before, they can deliver an app that can operate properly. They excel in terms of discipline and procedure." – CTO, IoT Startup

  • 17
    $10,000+
    10 - 49 Employees
    New York NY

    Exyte is a software development firm based in Novosibirsk, Russia. Founded in 2014, Exyte primarily works with startups on product development and has 14 employees. Their diverse technology stack and forward-thinking approach set them apart; they offer full-cycle mobile app development, AR/VR development, and UI/UX design.

    Clients
    Keep America Active
    nBookstore
    Yourcase
    FunCorp
    Industries
    Notable Project

    A learning mobile development company needed Exyte's mobile expertise. The agency was especially qualified to build an entry-level independent development environment (IDE) with a suite of learning tools and importing premade designs. The client was impressed with Exyte's relatively bug-free code and timing of deliverables as well as their management and operations skill.

    "We have very good communication, they are always online, and the time that they plan for features is always exact." – CTO, Educational IDE Startup

  • 18
    $10,000+
    10 - 49 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
    Papirus
    Evocoin
    Balneo Travel
    Industries
    Notable Project

    Peiko designed a corporate website from the ground up for an insurance company. They also built a CRM using PHP, HTML, CSS, and MySQL. Peiko’s commitment to understanding business goals and needs has translated into notable results, including high client satisfaction.

    “They’ve successfully applied an agile approach to our project. Balancing quantity with quality in their workflow, they meet deadlines and maintain a high level of professionalism.” – Head of Marketing Communication, Insurance Company

  • 19
    $10,000+
    10 - 49 Employees
    Wrocław Poland

    Ulam Labs is a software development company from Poland that specializes in of Python and blockchain. Founded in 2012, they have 20+ developers who serve startups and small-to-medium businesses in the fintech, telecommunications, e-commerce, banking, supply chain, production, and manufacturing sectors. Their services include custom software development, DevOps, consulting, and outsourcing. 

    Clients
    Mobile Vikings
    Scent Trunk
    Ruuvy
    GotMyJobs
    Industries
    Notable Project

    Ulam Labs built a crytocurrency trading platform from scratch. They complemented the client's design work with frontend and backend development and DevOps for the platform using Python, Docker, and Kubernetes. The client was most impressed with the quality of the code. 

    "The quality of code is excellent." – CEO, Cryptocurrency Trading Platform

  • 20
    $5,000+
    50 - 249 Employees
    Minsk Belarus

    Finwin Technologies, founded in 2018, is a software development firm headquartered in Singapore. They have a team of 22 employees, who work out of that office as well as their additional offices in Minsk, Belarus and Kiev, Ukraine. They provide AI, blockchain, and application development to small, midmarket, and enterprise companies in the finance industry.
     

    Clients
    Arrival Bank
    Palladium Family
    Addzer
    Industries
    Notable Project

    Finwin Technologies completed a development project for a blockchain analytics company. They built a smart contract platform similar to Google Analytics that could provide analytics for the Ethereum Blockchain network, taking care to include numerous functions and keep the design user-friendly. The client has received positive stakeholder feedback on the accuracy and efficiency of the platform.

    “After few months since our platform was launched we have received positive feedback from our partners. The design was simple and user friendly, the results were very accurate.” – CTO, Blockchain Analytics Company
     

  • 21
    $10,000+
    10 - 49 Employees
    Moskva Russia

    Founded in 2017, MixBytes is a software development firm that offers blockchain services to their small business and mid-market clients in the IT, business, and financial services industries. Their 50 employees are based out of Moscow.

    Clients
    Poa Network
    Smartz.io
    Dao Casino
    Industries
    Notable Project

    MixBytes recently worked on security audits for a cryptocurrency market platform. They displayed blockchain data after conducting an audit on a major cryptocurrency source code for that client.

    “After receiving the audit report, we implemented their most useful suggestions. Now we're even more confident in the security of our service.” — CEO, Cryptocurrency Market Platform

     

  • 22
    $10,000+
    50 - 249 Employees
    Tempe AZ

    DreamzTech Solutions is a software development company headquartered in Tempe, AZ with additional locations in Kolkata, India, Watford, England, and San Francisco. Founded in 2012, they have more than 250 full-time employees serving startups, SMBs, and Fortune 500 companies in the retail, healthcare, education, manufacturing, logistics, banking, media and entertainment, consumer products and services sectors. Their services include web development, mobile application, and cloud application development. They are also skilled in emerging technologies like blockchain, IoT, business intelligence, AR, and computer visions.

    Clients
    DHL
    Nestle
    First Tennessee Bank
    Reader's Digest
    Industries
    Notable Project

    Dreamztech Solutions was hired by a hospitality tech startup to build out an end-to-end restaurant and hospitality management platform. The team created web portal and mobile app solutions — iOS and Android — that enable restaurants to adapt to new COVID-19 standards. The solutions quickly secured an industry-leading clientele and enabled users to sustain operations during the pandemic. 

    "They have the ability to do things quickly and correctly for a price that works."  – Owner, Hospitality Tech Startup

  • 23
    $10,000+
    10 - 49 Employees
    San Francisco CA

    Dapplica is a blockchain development company founded in San Francisco in 2018 with no more than 50 experts. They specialize in blockchain services, web development, and mobile app development solutions for both small and medium-sized companies.

    Clients
    WAX (Worldwide Asset eXchange)
    Prospectors.io
    Crypto Lions
    Industries
    Notable Project

    Dapplica provided various services for a blockchain company. Dapplica worked on various projects for the company, including design, development, and blockchain work. The company is happy with Dapplica’s quality of work.

    “Dapplica is an industry leader.” - Co-Founder, Blockchain Company

  • 24
    $10,000+
    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
    Bittrex, Securitize
    Industries
    Notable Project

    IdeaSoft.io recently worked on web development for a broker company. They implemented a ranking system through a database they developed for that client.

    “The database is available to specific customers, and it’s going quite well.” — CEO, Broker Company

     

  • 25
    $10,000+
    50 - 249 Employees
    Wrocław Poland

    Look4App is a software house headquartered in Wroclaw, Poland with another office in Dubai, the UAE. Founded in 2013, Look4App's team of 32 employees provides web development, UX/UI design, and custom software development services for small and midmarket clients.

    Clients
    Cofapay
    Emerald Air
    Travelplanet.pl
    ZonGuru
    Industries
    Notable Project

    Look4App was hired by an entrepreneur who wanted to create a photo application similar to Instagram. Look4App supplied full-scope development for the Android app, working on every aspect of the application: the landing page, the backend database, server connections, and the front end. The application has around 60 filters, which is particularly ambitious, but since its completion, the app has around 300,000 to 400,000 downloads with around 50,000 paid downloads.

    "I wanted to develop an app which would be better than Instagram; in some respects, I achieved this. The app has been successful, reaching between 300,000 and 400,000 downloads" — Entrepreneur

  • 26
    $10,000+
    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 Work Book
    Deals En Route
    Apptoto
    VersaFit
    Industries
    Notable Project

    A social fitness startup hired SoluLabs to develop a mobile app from scratch. The product used geofencing to connect people to fitness venues in different locations and was recognized by Inc. magazine for its user experience. After their release, the Android and iOS apps enabled the startup to gain more recognition and funding. The client credits SoluLabs' efficient work with being able to grow the company.

    "They were responsive overall. If we needed quick changes to be made, SoluLab set up meetings and kept clear lines of communication to understand and diagnose our ongoing issue. ... I emailed and called the team at random times, and someone was always available." – CEO, Social Fitness App

  • 27
    Undisclosed
    50 - 249 Employees
    Fremont CA

    Softjourn is a creative agency based in Fremont, Calif., with an additional office in Ukraine. Established in 2001, the team of about 170 provides web, mobile app, and IoT development, blockchain, and artificial intelligence services to mainly mid-sized clients.

    Clients
    Powwow
    UPC
    Tacit Innovations
    PEX
    Industries
    Notable Project

    Softjourn provided need-based development services for an internet ticketing firm. Initially, they worked on the main ticketing website, then began to take on more responsibilities. The client appreciated Softjourn’s professionalism.

    "The code quality was good, deliverables were brought in on time, and Softjourn’s team was very pleasant to work with.” — CEO, Internet Ticketing Firm 

  • 28
    Undisclosed
    50 - 249 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
    OPSWAT
    Borta
    Agemni
    Industries
    Notable Project

    Apriorit developed Android and iOS applications for a mobile security company and was later contracted for further development of Chrome extensions and Windows and Linux projects. Apriorit provided long-term technical support for all platforms. 

    "Their project managers have taken away many of the headaches associated with software development, and I’ve learned to trust that, if I require something from them, I will receive a reply and it will be done." — CEO, Mobile Security Company 

  • 29
    $5,000+
    10 - 49 Employees
    Las Vegas NV

    Adoriasoft is a software development agency located in Apple Valley, Minnesota with additional offices in Ukraine and Isreal. Since 2010, their team of about 20 work with primarily small businesses. They specialize in web design and development, blockchain, mobile app development, UX/UI, AI development, and cybersecurity. 

    Clients
    Digitex
    Snaphappi
    Dropsend
    Easy File Shredder
    Industries
    Notable Project

    Adoriasoft completed multiple development projects for a PC software company. They worked including product API and development and database maintenance. Over time, the agency took on more projects for the client.

    "They’re very prompt, attentive and organized. They’re a very professional organization."  Product Marketing Manager, PC Software Company

  • 30
    $10,000+
    50 - 249 Employees
    Sumy Ukraine

    Brocoders is a software development company for VC-backed startups and midsize businesses based in Daytona Beach, Fla. Founded in 2014, Brocoders has a team of more than 70 specialists and has expanded to a second office in Kyiv, Ukraine to serve clients around the world. They provide web, cross-platform mobile app, custom software, and cloud architecture development.

    Clients
    Gokada
    Everypig
    Backbone International
    Condogenie
    Industries
    Notable Project

    A B2B education company hired Brocoders to develop an e-learning app. Brocoders used Ruby on Rails and Javascript to develop the app, which included custom features such as a database management platform, bulk data importer, and specific workflow processes.

    "We can speak freely with their team, identify what needs to be done, and refine it. ... They listen, provide input, and actually care about what we're doing." – Head of Product, Education Company

Tell us about your project
NEED HELP SELECTING A COMPANY?

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.

TELL US ABOUT YOUR PROJECT