Top 100 Blockchain Developers in Eastern Europe

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Top 100 Blockchain Developers in Eastern Europe

February 2023

Looking for a top blockchain developer in Eastern Europe?

The blockchain is the hottest new technology, and you want your business to be on top of it. So, partnering with a blockchain development company can be your next great investment. 

Jump to Most Reviewed Companies

List of the Best Eastern Europe Blockchain Technology Companies

  • 31
    • Scheduling

      4.6
    • Quality

      4.9
    • Cost

      4.7
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $50,000+
    • 250 - 999 employees
    • Kyiv, Ukraine

    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

    An investment documentation company was looking to fill the technological and development gap their previous CEO left behind, so they engaged with Dev.Pro for their software development services.

    "We’re impressed with their engineering capabilities, and compliance with the process and documentation."

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  • 32
    • Scheduling

      4.5
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $75,000+
    • 10 - 49 employees
    • Vilnius, Lithuania
    SUPER HOW?, a blockchain company, was launched in 2019. Their small team is located in Vilnius, Lithuania. Their services include blockchain, Artificial Intelligence, IT strategy consulting, custom software development, and more.

    Clients

    • HyFi Corp
    • MOREL INTL SOLUTIONS LTD
    • Perago FZ LLC
    • Bank of Lithuania

    Industries

    Notable Project

    SUPER HOW? Is developing a software platform for a FinTech company. They’re building an NFT launchpad and a security token launchpad that will enable private companies to behave like public companies.

    “They help entrepreneurs understand the relationship between business architecture and technology architecture.”

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  • 33
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.9
    • NPS

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

    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.

    Clients

    • MakerDAO
    • ConnectYourCare
    • Thulium

    Industries

    Notable Project

    Rumble Fish Software Development re-created a website, which involved design and front-and backend programming. The site had reservation request functionality and an accompanying contact management system.

    "I really like the way they thought outside the box to accommodate my requests."

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  • 34
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.8
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 50 - 249 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
    • Lendingblock
    • Willard Agri-Service
    • RankSense

    Industries

    Notable Project

    Ulam supplemented internal staff by migrating a website to Django, developing various applications, and building order management and user feedback functionality. They continue to maintain the website.

    "They're great about making sure their clients are happy."

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  • 35
    • $10,000+
    • 50 - 249 employees
    • Tallinn, Estonia

    openGeeksLab is an IT development company of around 50 employees, established in 2015. Their headquarters is in Toronto, Canada, with a second location in Zaporizhzhia, Ukraine. They offer services in mobile app development, web development, and blockchain. They serve small, midmarket, and enterprise clients in the business, energy, financial, and healthcare industries.

    Clients

    • The H Hub
    • Shift
    • Tie Dye Ninjas
    • Lezzoo

    Industries

    Notable Project

    a

    "Quote."

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  • 36
    • $10,000+
    • 10 - 49 employees
    • Cluj-Napoca, Romania
    Beyond Enterprizes, a small blockchain company, is headquartered in Los Angeles, California; Cluj-Napoca, Romania and București, Romania. They offer blockchain, business consulting, IT strategy consulting, custom software development, and more and were established in 2012.

    Industries

    Notable Project

    Beyond Enterprizes is implementing the client's MVP with new features and better UI/UX design. They also assist the client with copyrighting, technical specs, and interconnections.

    "They know how to build blockchain-based products, together with the skills and experience in building mobile apps."

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  • 37
    • $10,000+
    • 50 - 249 employees
    • Poznań, Poland

    Headquartered in Poznań, Poland, Espeo Software is a development agency that focuses primarily on the business services, marketing, and education industries. Founded in 2008, the company has about 70 employees that work with small businesses, middle-market companies, and enterprise clients alike. Espeo Software specializes in web development, blockchain, mobile app development, and more. 

    Clients

    • Schibsted Oikotie
    • Awake.AI
    • Ensto Oy
    • Solita

    Industries

    Notable Project

    Espeo Software created a link building services app dedicated to controlling affiliate links for SEM purposes. They implemented an easy user interface and tracking system for viewing link ties.

    "It's clear they think about these projects on a level beyond what we saw with [other firms]."

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  • 38
    • Scheduling

      4.8
    • Quality

      5.0
    • Cost

      4.8
    • NPS

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

    Airnauts is a digital development and design agency that got its start in 2012. The team in mobile app development, web design, web development, UI/UX design, and e-commerce development. Their 25 employees are spread over three offices located in Warsaw, Paris, and New York City.

    Clients

    • Google
    • LVMH
    • Atari
    • Santander Bank

    Industries

    Notable Project

    Airnauts helped build scalable marketing platforms to boost brand campaigns. They used Node.js, Vue.js, and Twitter and Instagram APIs to collect information and facilitate campaign effectiveness.

    “Their flexibility and responsiveness are a big part of why we’ve worked together so long.”

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  • 39
    • 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 developed a website for a property and facility management company. The team also created and integrated a custom CRM for the client.

    "I was impressed by the open-minded team, flexibility, and consistent approach to their work."

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  • 40
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 10 - 49 employees
    • Timișoara, Romania
    Founded in 2018, DX Software is a blockchain company. The agency focuses on blockchain, web development, and e-commerce development and has a small team. The agency is in Timișoara, Romania.

    Clients

    • Golf Genius Software
    • Ferma Flooring
    • JG Pest Control
    • SummitSwap

    Industries

    Notable Project

    DX Software developed a Solidity smart platform for a cryptocurrency startup.

    "They gave us exactly what we needed."

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  • 41
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.8
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $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

    • Maker Foundation
    • Polkadot
    • Bitcoin.org
    • Ethereum foundation

    Industries

    Notable Project

    Ethworks revamped a digital hedge fund’s platform to improve the design and user experience for clients. High-quality coding and innovative ideas improved the function, look, and feel of the website.

    [Ethworks] provided high-quality coding to create a more intuitive experience for our investors.”

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  • 42
    • Scheduling

      4.9
    • Quality

      4.9
    • Cost

      4.8
    • NPS

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

    DAC.digital is an IT service provider in Gdańsk, Poland. Their team of fewer than 50 employees offers services in IoT development, blockchain, big data consulting, and custom software development. They services midmarket and enterprise companies in industries such as transportation, IT, and energy and natural resources. They were founded in 2009.

    Clients

    • eye square GmbH
    • Sports Computing AS
    • Snowfall Travel (Junction Pay Limited)
    • ABAX AS

    Industries

    Notable Project

    DAC.digital was hired by a market research firm to build a user testing platform. The team mainly focused on UI/UX design, DevOps development, and platform testing.

    "We felt like everything ran smoothly and finished the project on time."

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  • 43
    • $10,000+
    • 50 - 249 employees
    • Rzeszów, Poland

    Concise Software is a blockchain and software development company based in Berlin, Germany with an office in Rzeszów, Poland. Founded in 2011, the team of 43 specializes in blockchain, mobile app development, and custom software development. They work primarily with midmarket clients, in the business services, automotive, and consumer products and services industries. 

    Clients

    • Red Bull
    • Ubitricity
    • Ars Electronica
    • Panasonic

    Industries

    Notable Project

    Concise Software provided software development services for a Web3 startup. Together with the client, they designed the UX/UI and built an MVP. They also handled further development of the platform.

    "Everything was super cool!"

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  • 44
    • $25,000+
    • 50 - 249 employees
    • Brno, Czech Republic

    Custom software development company MoroSystems, s.r.o. Was launched in 2006. Their midsize team is located in Brno, Czech Republic; Praha, Czech Republic; Hradec Králové, Czech Republic and Bratislava, Slovakia. MoroSystems, s.r.o. Focuses on custom software development, web development, IT strategy consulting, mobile app development, and more.

    Industries

    Notable Project

    A communication group has engaged with MoroSystems, s.r.o. for custom software development using Microsoft Azure infrastructure. The team initially outlined the project requirements, estimations, and timelines.

    "We're inspired by MoroSystems, s.r.o.'s agile development."

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  • 45
    • Scheduling

      4.8
    • Quality

      4.8
    • Cost

      4.3
    • NPS

      4.8
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 10 - 49 employees
    • Kharkiv, Ukraine

    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 developed a webcam driver for a software company that allows the app to interface with other webcam enabled desktop apps. The team handled all aspects of development, including the install.

    "They kept us in the loop regarding progress, stuck to deadlines, and delivered very good results."

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  • 46
    • Scheduling

      4.9
    • Quality

      5.0
    • 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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  • 47
    • Scheduling

      4.8
    • Quality

      4.8
    • Cost

      4.8
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 10 - 49 employees
    • Kyiv, Ukraine

    Zpoken is an AI firm based in Kyiv, Ukraine. Founded in 2017, their team of 30 serves clients in the IT sector. Services include custom software development and big data consulting.

    Industries

    Notable Project

    Zpoken provided staffers to augment an AI technology project. Their team of machine learning engineers worked to improve the quality of satellite imagery using technologies. 

    "We have improved our product with several new features."

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  • 48
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

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

    Cowchain is a blockchain company. The small Kharkiv, Ukraine-based team focuses on blockchain, web development, ux/ui design, IT strategy consulting, and more. The company was founded in 2021.

    Clients

    • StepApp
    • SportsGG
    • Landworks
    • Akkadia

    Industries

    Notable Project

    Cowchain provided blockchain consultancy for a gaming platform. Their process includes implementing smart contracts and features such as level-up, burning, buy and sell abilities, and more.

    "They had more than reasonable rates which 100% corresponded to hourly rates they had."

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  • 49
    • Scheduling

      4.4
    • Quality

      4.5
    • Cost

      4.0
    • NPS

      4.8
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 50 - 249 employees
    • Kyiv, Ukraine

    Founded in 2005, Redwerk is a development company based in Kyiv, Ukraine with a second office in Estonia. They have a team of 70 that provides mobile, web, and custom software development. 

    Clients

    • Recruit Media, Inc.
    • AWE Learning
    • HireQuest
    • Change & Innovation Agency (C!A)

    Industries

    Notable Project

    Redwerk developed the software from scratch and according to the required specifications of the company's partner. They handled all the coding and testing as well as technical support and troubleshooting.

    "At the end of the day, it's all about cost, quality, and time.... Redwerk were good."

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  • 50
    • $10,000+
    • 10 - 49 employees
    • Chernivtsi, Ukraine

    WarmDevs is a development agency based in Chernivtsy, Ukraine with more than two professionals. They have provided e-commerce development, web development, and web design solutions since their founding in 2014. They work primarily with small and mid-market firms.

    Clients

    • Ved Norge AS
    • Gaitline AS

    Industries

    Notable Project

    WarmDevs Webflow developed an e-commerce website for an animal food manufacturer. The site needed to provide relevant informational content that shows the benefit of buying the client's products.

    "I instead relied on their team to make all changes. This worked well."

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  • 51
    • $10,000+
    • 10 - 49 employees
    • Kyiv, Ukraine

    Founded in 2014, Team Harbour is a development, AI, and blockchain company based in Cincinnati, Ohio. They primarily work with small businesses in the financial services, e-commerce, and real estate industries. 

    Clients

    • XchangePlus
    • VISA
    • COMO Global
    • RINA Systems

    Industries

    Notable Project

    Team Harbour provides design and front- and backend development services to a real estate technology company. They work in React on the frontend. The team has also rewritten code and provided QA services.

    "They go out of their way to make sure that there won’t be any delays and clarify things."

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  • 52
    • $25,000+
    • 10 - 49 employees
    • Kyiv, Ukraine

    .K.I.S.S. Software, a custom software development company, is based in Kyiv, Ukraine. The small team offers custom software development, web development, mobile app development, blockchain, and more. The agency was founded in 2006.

    Clients

    • Mercedes-Pay – Code review and external penetration testing for electronic payment system
    • NCRYPTO – Multicurrency tokenization platform
    • IEXCHANGE – Security and penetration tests in cooperation with Ernst & Young
    • ECommPay GLOBAL PAYMENT PROVIDER – Cybersecurity for provider of payment services

    Industries

    Notable Project

    A language evaluation company hired .K.IS.S. Software to help with their custom software development effort. The team audited the client's company history, and platform, and installed the upgrades.

    "PM's communication and accessibility were impressive."

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  • 53
    • $5,000+
    • 10 - 49 employees
    • Kyiv, Ukraine

    Tech Band is a blockchain company. Established in 2016, the team offers blockchain, custom software development, web development, and mobile app development. Their small agency is located in Kyiv, Ukraine.

    Clients

    • Nimbus
    • Crypto Snake
    • Flare Finance
    • Unicorn.win

    Industries

    Notable Project

    TechBand Blockchain Development Company provided a creative agency with blockchain consulting services for their startup idea. They performed a market analysis and conducted one-hour consulting sessions.

    "They have blockchain expertise and a good team of analysts and developers who know the cryptocurrency market well."

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  • 54
    • Scheduling

      4.6
    • Quality

      4.9
    • Cost

      4.5
    • NPS

      4.8
    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 was hired to redesign and rearchitect the client's core product with the end goal of improving sales channels and ultimately revenue.

    "I am extremely satisfied with SoftwareMill. They have moved at a faster pace than any team that our company has used and accomplished a great deal more in one year than we ever had."

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  • 55
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.7
    • NPS

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

    Qarbon IT is a software development company in Poland, founded in 2019, with over 50 employees. They serve worldwide companies in industries such as finance, banking, automotive, education, and energy. Their services include custom software development, web application development, and mobile application development.

    Clients

    • Takamol Holding
    • Baraka
    • Komputronik
    • Interia

    Industries

    Notable Project

    Qarbon IT provided smart contract development for a blockchain platform, which is written in Vue2 and JavaScript. They ensured that the client's frontend developers could easily update and optimize the code. 

    "The developers they offered are specialists who support us and fit into our work culture."

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  • 56
    • Scheduling

      4.5
    • Quality

      5.0
    • Cost

      4.5
    • NPS

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

    Small blockchain company CST, is in Sofia, Bulgaria. They specialize in blockchain, BI & big data consulting & SI, cloud consulting & SI, and custom software development and were launched in 1997.

    Clients

    • SAP AG
    • Deutsche Telekom AG
    • Daiteap GmbH & Co KG

    Industries

    Notable Project

    CST built a web-based and hybrid mobile application for a sports startup. They developed the solution using Python and implementing specifications. Now, their team provides ongoing maintenance and support.

    "They’re flexible, trustworthy, straightforward, and honest."

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  • 57
    • $25,000+
    • 10 - 49 employees
    • București, Romania
    Krypton Labs is a blockchain company. The small București, Romania-based company was launched in 2020. Their team focuses on blockchain, custom software development, web development, and Artificial Intelligence.

    Industries

    Notable Project

    Krypton Labs augmented their staff to develop a play-to-earn game for a decentralized gaming company. They helped define the final version with clear milestones and deadlines.

    "It was very easy to work with them."

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  • 58
    • Scheduling

      4.9
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • Undisclosed
    • 10 - 49 employees
    • Sofia, Bulgaria

    INDUSTRIA is a blockchain company located in London, United Kingdom and Sofia, Bulgaria. The small team provides blockchain, mobile app development, and web development and was established in 2002.

    Clients

    • R3
    • KnowRisk
    • Finteum
    • UniCredit Bulbank

    Industries

    Notable Project

    INDUSTRIA developed and coded software for a blockchain-enabled platform. They provided UX designs and facilitated software testing and quality assurance, among other technical tasks.

    "We benefited greatly from partnering with a company that can provide full-service development and design support."

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  • 59
    • $5,000+
    • 10 - 49 employees
    • Sofia, Bulgaria

    Founded in 2017, Lexis Solutions is located in Sofia, Bulgaria. Their team of about ten specialists provides web & mobile development and custom software development services to primarily midmarket firms and startups. 

    Clients

    • OnnoPlus
    • Kreston Bulmar
    • StaffSquared
    • SureNav

    Industries

    Notable Project

    Lexis Solutions built a WordPress template based on the creative firm's designs. They created the pages, explained the template's flow and animations, and briefed them on how to use the modules and elements.

    "Our customer was very satisfied with the outcome."

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  • 60
    • Scheduling

      4.5
    • Quality

      5.0
    • Cost

      5.0
    • NPS

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

    SOFTXAPP is a software development firm. Founded in 2020, the team offers custom software development, mobile app development, product design, web development, and more. Their small company is in Lviv, Ukraine.

    Clients

    • Pravosud
    • DRESSX
    • KARABAS
    • HIME Inc

    Industries

    Notable Project

    SOFTXAPP has built an application for a legal-tech company. They cover a full range of services from UX/UI design to back- and frontend development.

    "Their ability to find solutions to very complex problems is amazing."

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