The Best Smart Contract Developers in Poland

Looking for a top smart contract developer in Poland?

Smart contract development ranges in cost from $5,000 to $100,000 depending on the complexity of programming and deploying the contract. To get started, smart contract developers should define the contract requirements, create the code, test the contract, and deploy it. These steps may sound simple, but smart contracts must consider all rules to ensure a digital transaction works as planned.

Smart contract development is a required skill for any blockchain developer you work with. When hiring a blockchain development company, ask about its experience creating smart contracts and its approach.

To assist you in your search for a partner, we’ve compiled this list of the top smart contract companies in Poland. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.

List of the Best Poland Smart Contract Developers

  • 1

    SoftwareMill

    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. 

    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

    Former clients
    Tipser
    HRoBOT
    Zerigo
    Vocado
    $ $ $ $ $
    equalizer $25,000+
    group50 - 249 Employees
    place Warszawa, Poland
    4.9
    4.9
    24 Clutch reviews
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  • 2

    Ulam Labs

    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. 

    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

    Former clients
    Mobile Vikings
    Scent Trunk
    Ruuvy
    GotMyJobs
    $ $ $ $ $
    equalizer $10,000+
    group10 - 49 Employees
    place Wrocław, Poland
    4.9
    4.9
    10 Clutch reviews
  • 3

    EthWorks

    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

    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

    Former clients
    Verify
    Dharma
    IOTA
    Ambrosus
    Aragon.one
    Parity
    $ $ $ $ $
    equalizer $5,000+
    group10 - 49 Employees
    place Warsaw, Poland
    4.9
    4.9
    10 Clutch reviews
  • 4

    4soft

    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.

    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

    Former clients
    Cofapay
    Emerald Air
    Travelplanet.pl
    ZonGuru
    $ $ $ $ $
    equalizer $10,000+
    group50 - 249 Employees
    place Wrocław, Poland
    4.9
    4.9
    28 Clutch reviews
  • 5

    DeSmart Software House

    DeSmart is a software house based in Gdynia, Poland. Since 2003, their team of 28 has been specializing in web development, custom software development, mobile app development, and more. DeSmart works with small and mid-sized clients. 

    Notable Project

    DeSmart developed and designed a website for a talent recruitment platform. The work focused on creating an excellent UI/UX. The client values DeSmart for their flexibility.

    "We now have the fastest platform in our current market. On the old platform, searches took an average of six–10 seconds to return results, but the current load time is 6–8 milliseconds...feedback from our current users has been extremely positive. We’ve had users from three years ago come back to use the new platform." — VP of Product, Recruitment Platform

    Former clients
    IBM
    tagvenue
    Shoplo
    Conventica
    $ $ $ $ $
    equalizer $10,000+
    group10 - 49 Employees
    place Gdynia, Poland
    4.9
    4.9
    17 Clutch reviews
  • 6

    Pragmatic Coders

    Pragmatic Coders is a software development house located in Warsaw and Krakow, Poland. Founded in 2014, the employ        43 staff who specialize in fintech, blockchain, and cloud software development, working with a range of small, midmarket and global businesses. Services include UI and UX design, custom software development, trading platforms, and investment solutions.

    Notable Project

    Pragmatic Coders developed an automated web app with email notifications for a translation company. They replaced a cumbersome Excel-based system to enhance quality evaluation and assessment and create a more efficient workflow. Their innovative app improved translation quality, turnaround time, and performance evaluation.

    “Launching the app increased overall translation quality, and we can now track the translation indexes for each project and analyze translator and reviewer performance. The linguists are very happy with the new workflow, which elevates the communication between translators and reviewers to a more professional level and eliminates negative feelings.” – Co-Founder, Translation Company

    Former clients
    Bloc-X
    Eldorado
    Photochain
    AccentPharm
    $ $ $ $ $
    equalizer $25,000+
    group50 - 249 Employees
    place Krakow, Poland
    4.8
    4.8
    9 Clutch reviews
  • 7

    Softjourn

    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.

    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 

    Former clients
    Powwow
    UPC
    Tacit Innovations
    PEX
    UPC
    CyberSource
    Barracuda FX
    $ $ $ $ $
    equalizer

    Undisclosed

    group50 - 249 Employees
    place Wroclaw, Poland
    4.8
    4.8
    5 Clutch reviews
  • 8

    ICEO - Venture Builder

    ICEO is an IT, design, and marketing agency headquartered in Edinburgh, England with an office in Smoleńsk, Poland. Founded in 2008, their team of 22 professionals offers UX/UI design, custom software development, and business consulting services to both small and medium-sized firms. They have worked for companies in the fields of utilities, business services, and financial services.

    Notable Project

    A document automated system needed help with data management and hired ICEO for their services. ICEO helped automate document management using a custom-built system, and also built a commercial website with plugins for MS Office. The product helped out in the company's document management operations.

    "They not only delivered a great product, they have found a way to commercialize it so that it would benefit my company in the long run." - Former CEO, Document Automated System

    Former clients
    BitBay
    Wolters Kluwer
    European Muay Thai Fed
    $ $ $ $ $
    equalizer $50,000+
    group10 - 49 Employees
    place Cracow, Poland
    5.0
    5.0
    10 Clutch reviews
  • 9

    Nextrope

    Nextrope is a software house founded in 2016 and based in Gdynia, Poland. With over 9 members, they specialize in mobile app development, web development, and blockchain services for small and mid-market firms.

    Notable Project

    Nextrope developed an e-commerce platform for a clothing and apparel platform startup. The startup needed Nextrope’s assistance in developing the marketplace’s engine, as well as apps for both Android and iOS. The web engine was completed and is now ready for launch.

    “Nextrope was very accurate and fast in its work, not a deadline missed.” - Co-Founder, Clothing and Apparel Platform Startup

    Former clients
    Alior Bank
    Lex Secure
    Stable Foundation
    $ $ $ $ $
    equalizer $10,000+
    group10 - 49 Employees
    place Gdynia, Poland
    5.0
    5.0
    11 Clutch reviews
  • 10

    Scalac. Backend Software Development Company.

    Scalac, Inc. is a software house located in San Francisco and in Gdańsk, Poland. Founded in 2014, they employ 123 staff experienced with a wide range of technology consulting services (mainly Scala, Akka, ZIO, Spark, Flink, Kafka, Hadoop, GraphQL, Python, AWS, Kubernetes, Vue.js, React.js, Angular). They work with a range of companies in finance, IT, ad tech, e-commerce, and gaming.

    Notable Project

    Scalac, Inc. supported an IT company migrate their communication solution onto a Scala-based platform. They worked with an internal development team and provided full-stack support. Internal stakeholders saw the value of their company rise after the launch of Scalac Inc.’s final product, and were even purchased by an investor.

    “The system is not only a large improvement in terms of function, but we’ve also been able to lower our operational costs to keep it running. The platform we built with Scalac, Inc. was absolutely transformative for our company. Since we developed the product, we’ve been bought by an investor.” – Software Engineer, IT Company

    Former clients
    Adaptemy
    Everydapp.com
    Compute Cycles
    Tapad
    $ $ $ $ $
    equalizer $10,000+
    group50 - 249 Employees
    place Gdańsk, Poland
    5.0
    5.0
    10 Clutch reviews
  • 11

    Smartym Pro

    Founded in 2012 and based in London, Smartym Pro is a full-cycle development company with a team of 26 employees. They specialize in mobile app development, blockchain, and custom software development for primarily small business clients in the business services, healthcare, and transportation industries.

    Notable Project

    Smartym Pro created an app for a pet services company. They handled the full scope of the development, from the research into what potential users would want to a soft launch of the finished product in four different languages. The client was happy with the finished product and was impressed with how detail oriented they were.

    “They have been attuned to every detail and handled everything professionally, from the discovery stage and prototype to final development.” – Founder, Pet Services Company

    Former clients
    Heineken
    Wayfarer
    Instachain
    $ $ $ $ $
    equalizer $5,000+
    group10 - 49 Employees
    place Warsaw, Poland
    4.7
    4.7
    15 Clutch reviews
  • 12

    Cardinal Cryptography

    Cardinal Cryptography is a software agency founded in 2018 and based in Krakow, Poland. With more than 10 members, they offer custom software development, web development, and blockchain solutions for clients in industries such as energy, financial services, and more.

    Notable Project

    Cardinal Cryptography provided web design and development services for a blockchain platform. The platform needed design, development, and research solutions for their website. The platform is more than satisfied with Cardinal Cryptography’s quality of work.

    “I’m very satisfied with the branding and materials from a design perspective.” - President, Blockchain Platform

    Former clients
    Aleph Zero Foundation
    $ $ $ $ $
    equalizer $5,000+
    group10 - 49 Employees
    place Krakow, Poland
    5.0
    5.0
    2 Clutch reviews
  • 13

    CROSS

    CROSS sp. z o.o. is a software development company headquartered in Warsaw, Poland, with an additional office in Opole, Poland. Founded in 1988, the 6-person team specializes in custom software development, financial accounting, and blockchain.

    Notable Project

    CROSS sp. z o.o. provided custom software development services for a utilities company. The client needed a new system that would help make their business run more smoothly. CROSS sp. z o.o. built the system for the client’s employees; the system allows employees to do things such as sell products and make reports. The client has stated that this system is essential to the company.

    “We can’t operate without this system.” —Director, Utilities Company

    Former clients
    EWE
    PGNiG
    Bank Polski
    $ $ $ $ $
    equalizer $5,000+
    group50 - 249 Employees
    place Warsaw, Poland
    5.0
    5.0
    2 Clutch reviews
  • 14

    Blockhunters

    Blockhunters is a blockchain auditing company based in Lodz, Poland and founded in 2018. Specializing in blockchain, the five-person team also provides cybersecurity and custom software development services. Their client focus is on small businesses in the financial services, IT, telecommunications, and e-commerce sectors.

    Notable Project

    Blockhunters did a security audit of a layer-one blockchain solution for a blockchain infrastructure startup. They found and fixed bugs that would’ve caused irreparable damage to the product. The client was pleased with the engagement from beginning to end.

    “I have nothing but positive things to say about my experience working with Blockhunters.” – Former CTO, Blockchain Infrastructure Company

    Former clients
    Lightstreams
    Fr8 network
    $ $ $ $ $
    equalizer $5,000+
    group2 - 9 Employees
    place Lodz, Poland
    5.0
    5.0
    1 Clutch review
  • 15

    createIT.com

    Founded in 2003, createIT.com is a software development agency that offers custom software development, web development, and UX/UI design services to their clients in the e-commerce, gaming, and business services industries.Their 50 employees are based out of Warsaw.

    Notable Project

    createIT.com recently worked on platform development for an e-commerce solutions business. They conducted software development on the platform for that client.

    “It's a very open-minded and valuable partnership. They have outstanding skills, and they’re a dedicated team. ” — Managing Director, E-Commerce Solutions Business

     

    Former clients
    LionLine Entertainment GMBH
    PKO BP Bank
    ADP Polska
    $ $ $ $ $
    equalizer $5,000+
    group50 - 249 Employees
    place Warsaw, Poland
    5.0
    5.0
    11 Clutch reviews
  • 16

    ITSharkz

    ITSharkz is a software and IT services company based in Warsaw, Poland. The company, founded in 2019, has a team of more than ten that provides custom software development, web development, mobile app development, and blockchain services to small and midmarket companies and organizations. 

    Notable Project

    ITSharkz was hired by a medical supply business to develop and maintain the business's e-commerce platform, develop dedicated backend modules to improve the platform's operation, prepared the landing page, and created a custom blog. ITSharkz delivered on all these, improving the overall operations of the business and the latter's relationships with its partners. 

    "We were able to complete the order without delays." - Executive Manager, medical supply business

    Former clients
    Fulmo
    Snowbuddy
    $ $ $ $ $
    equalizer $5,000+
    group10 - 49 Employees
    place Warsaw, Poland
    5.0
    5.0
    5 Clutch reviews
  • 17

    Nebulic

    Nebulic is a digital innovation house, founded in 2019 and located in Warsaw, Poland. They comprise four employees specializing in AI, machine learning, website technologies, website optimization, and blockchain. They work predominantly with small and midmarket companies in retail, advertising, and arts and entertainment.

    Notable Project

    Nebulic developed a network of websites and improved platform efficiency for an architecture firm. They worked in Node.js and Ruby on Rails to make improvements. The changes delivered by Nebulic have transformed the client's business, improving efficiency and overall profitability.

    "They not only made a great website, improved UX/UI, and made changes in the platform's efficiency, but they also tell me what I should do to take better advantage of the features I already had. They help me with my business goals to really reconsider everything that I’ve been doing." – CEO, Architecture Firm

    Former clients
    Opera Software
    Nokia Siemens Networks
    Tieto
    $ $ $ $ $
    equalizer $10,000+
    group2 - 9 Employees
    place Warsaw, Poland
    5.0
    5.0
    1 Clutch review
  • 18

    Rumble Fish Software Development

    Rumble Fist Software Development is a cloud consulting and SI firm based in Kraków, Poland. Founded in 2017, their team of 30 serves clients in the business services, financial services, and IT sectors. Services include VueJS, React Native, Redux, Python, and Blockchain development.

    Notable Project

    Rumble Fist Software Development developed a CMS for a pet hotel. They used React and added new features to the UX. The new site is user friendly and easily customizable.\

    This is saving us hours a day on productivity.” -  Director, Pet Hotel

    $ $ $ $ $
    equalizer $25,000+
    group10 - 49 Employees
    place Kraków, Poland
    4.8
    4.8
    5 Clutch reviews
  • 19

    Sygnisoft S.A.

    Sygnisoft S.A. is a digital and IT solutions company based in Warsaw, Poland. The company, founded in 2015, has a team of around 15 that provides custom software development, web development, and mobile app development services. Sygnisoft serves small and mid-market companies in various industries.

    Notable Project

    A healthcare products company hired Sygnisoft S.A. to help them automate and speed up production, selling, and logistics processes. For this purpose, Sygnisoft was tasked to develop a dedicated IT system using a PHP framework. Sygnisoft completed the project which enabled the company to make production and other processes run faster.

    "I appreciate the very good consulting and advising level from Sygnisoft." - Management Director, Healthcare Products Company

    Former clients
    PZU Orlen Warsaw Marathon
    Genprox
    All4Jets
    ShadowBet.com
    $ $ $ $ $
    equalizer $1,000+
    group10 - 49 Employees
    place Warsaw, Poland
    4.9
    4.9
    4 Clutch reviews
  • 20

    Yameo

    Yameo is a software development agency headquartered in Rotterdam, Netherlands with a development center in Gdansk, Poland. Founded in 2005, they have 30 employees, and provide custom software development, web development, mobile apps, and IT strategy consulting.

    Notable Project

    Yameo developed web and mobile applications for a German home appliance firm. The app was moving from the client's innovation department to a product rollout, and needed additional development resources to provide adequate functionality. After a trial with target users, Yameo was tasked with several complex back-end and infrastructure changes, including integration with a video streaming plugin. They delivered the platform according to the client's specifications, who noted that the success of the project was largely due to Yameo's efforts.

    "Yameo was quite easygoing. If any issues arose, or if they had budget or timeline problems, they always communicated them. We solved a lot of issues through professional communication." — Innovation Manager, German Applicance Firm

    Former clients
    Raffeisen Bank
    World Vision International
    DEKRA
    National Health Insurance Authority
    $ $ $ $ $
    equalizer $25,000+
    group10 - 49 Employees
    place Gdansk, Poland
    4.6
    4.6
    8 Clutch reviews
    Awards

    Employer Branding Excellence Award (2017)

  • 21

    0xCompany

    0xCompany is a software development company based in Warsaw, Poland. the company, founded in 2018, has more than 50 employees and provides web development, mobile app development, custom software development, and blockchain services to various companies. 

    Notable Project

    A payment service company hired 0xCompany for multiple projects. These include a native iOS and Android app where 0xCompany built the internal architecture and was responsible for the overall service. They also developed a web portal using AngularJS and Python. The ongoing engagement has been improving over the years.

    "Everything they’ve produced has been functional. We didn’t have any problems during development or after deployment." - CTO, payment service company 

    Former clients
    Poslike POS
    Alice-Bob
    GEO Explorer
    $ $ $ $ $
    equalizer $5,000+
    group10 - 49 Employees
    place Warsaw, Poland
    4.5
    4.5
    1 Clutch review
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