The Best Smart Contract Developers in Warsaw

Looking for a top smart contract developer in Warsaw?

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 Warsaw. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.

List of the Best Warsaw 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 Warsaw, 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

    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
  • 5

    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
  • 6

    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 Warsaw, Poland
    5.0
    5.0
    1 Clutch review
  • 7

    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
  • 8

    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
  • 9

    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
  • 10

    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
  • 11

    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
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