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Top Blockchain Companies & Developers in Vienna

Ratings Updated: August 3, 2026
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10 Companies

Country: Austria
City: Vienna

List of the Top Vienna Blockchain Development Companies

  • Featured

    What are Featured Providers?

    Nextrope Logotype

    Nextrope

    5.0 18 reviews
    Premier Verified
    $25,000+
    $50 - $99 / hr
    10 - 49
    Serves Vienna, Austria

    Services provided

    70% Blockchain
    30% Custom Software Development

    Nextrope is a Blockchain Development company specializing in Blockchain Solutions, Smart Contract Development, and Crypto Application Development. All reviews highlight their proactive approach, adaptability, and strong sense of ownership, with 100% positive feedback on their ability to align technological and business strategies effectively. Their expertise contributed to a 60% reduction in manual work and faster investment processes.

    See all 18 projects

    Reviews mention Flexible

    Nextrope has received consistently positive feedback regarding their flexibility across multiple projects. Clients highlighted how the team adeptly adapted to evolving requirements, such as in the case of PropEdge Ventures, where they embraced changes with agility and commitment. Similarly, Proxy Partners noted their remarkable responsiveness to changing demands. Overall, the sentiment reflects a strong appreciation for Nextrope’s ability to accommodate client needs and provide timely solutions, enhancing project outcomes.
    • Business Dev Consultancy for Construction Services Startup
      5.0 May 27, 2022

      The Nextrope team was very quick in first organizing the introductory meeting, understanding our needs, coming up with a workshop proposal, and finally doing the analysis. Then, they were flexible in logistics of planning our workshop, and delivered high-quality materials from the consultancy.

      Read Full Review
    • EIP-20 Ethereum Token for Web3 Solution Provider
      5.0 Mar 12, 2022

      It was a pleasure to work with a competent team. The cooperation went smooth and they followed through on their promises. Also, the Nextrope team was very flexible and prepared to go above and beyond to complete the project.

      Read Full Review
    • Blockchain Platform Dev for Real Estate Investment Platform
      5.0 Dec 5, 2025

      Beyond their flexibility, what I valued the most was the team’s proactive approach. Nextrope does not focus solely on the technology itself; they take the time to understand the broader business context and continuously advise on whether certain technical decisions will positively impact the overall product and protocol. Whenever new requirements emerged even if they went beyond the original scope the team responded quickly, responsibly, and with genuine commitment. Our business model and product vision evolved throughout the project, yet Nextrope consistently adapted to these changes with impressive agility.

      Read Full Review
    • Software Development for Interim CFO Company
      5.0 Jul 16, 2020

      It’s amazing how much we achieved with such reasonable budget and time! Nextrope team's flexibility and responsiveness to changing requirements on our side is remarkable.

      Read Full Review
    Read All Reviews
    1 of 1 Blockchain reviews are 5 stars
    $10,000 – $49,000 avg. project cost

    Blockchain PROJECT HIGHLIGHT

    Blockchain Platform Dev for Real Estate Investment Platform

    5.0 — Nextrope developed a blockchain-based real estate tokenization platform for a real estate investment platform. The team designed the system's core architecture and developed the front- and backend. Read more
    Read 1 Review

    Industry Experience

    Nextrope has garnered positive feedback across multiple industries, including Real Estate, Business Services, Financial Services, Education, and Information Technology. Their expertise in blockchain solutions, project management, and adaptability has been highlighted, particularly for developing platforms and consulting on tokenization processes. Clients praised their proactive communication, timely delivery, and ability to provide tailored solutions. Overall, sentiments are highly favorable, suggesting that they are well-suited for projects in technology-driven sectors, particularly those involving blockchain and digital platforms.

    Read All Reviews

    Select Industry to see insights

    Information technology Financial services IT Services Education Engineering Retail Media Business services Real estate Manufacturing

    More responsive than most other service providers

    Nextrope is very responsive

    They are a great candidate to start a conversation with. Send them a short message or project inquiry.
    Get in Touch
    View Profile Visit Website
    RedDuck Logotype

    RedDuck

    5.0 14 reviews
    Verified
    $5,000+
    $50 - $99 / hr
    10 - 49
    Serves Vienna, Austria

    Services provided

    100% Blockchain

    RedDuck is a prominent Blockchain Development company specializing in Smart Contract Development, Decentralized Application (DApp) Development, and Blockchain Solutions. With a 100% positive feedback rate from reviewers, clients commend RedDuck for their technical precision, strategic product delivery, and exceptional project management. Approximately 80% of reviews highlight their responsive communication and ability to exceed expectations within budget constraints.

    See all 14 projects

    Industry Experience

    RedDuck has demonstrated expertise across telecommunications, financial services, gaming, and other industries. In telecommunications, they efficiently developed an API interface, enhancing client satisfaction with on-time delivery. In financial services, their comprehensive development capabilities for DeFi projects garnered positive feedback for strong project management and effective communication. Clients from gaming appreciated their ability to deliver complex projects swiftly. Overall, RedDuck is well-regarded for its technical precision, strong project management, and adaptability, making them a suitable partner for tech-driven initiatives in these sectors.

    Read All Reviews

    Select Industry to see insights

    Other Industry Logistics & Supply Chain Gaming Financial services

    Average Project Cost Breakdown

    $50,000 to $199,999 (5) $10,000 to $49,000 (1)

    What Clients Have Said

    RedDuck is consistently recognized for providing good value for money across various projects. Clients noted that their pricing fit within budget constraints while delivering high-quality outcomes. For example, one client appreciated RedDuck's 'good value for cost' and timely delivery, while another highlighted their 'excellent project management' and responsiveness. Overall, feedback reflects a positive sentiment regarding the company's cost efficiency and commitment to meeting client expectations.
    Read All Reviews

    More responsive than most other service providers

    RedDuck is very responsive

    They are a great candidate to start a conversation with. Send them a short message or project inquiry.
    Get in Touch

    View projects from:

    Germany (1) India (1) South Africa (1) Switzerland (1) Thailand (1) Ukraine (1) United States (1) England (1)

    This provider is fluent in 4 languages:

    • English
    • German
    • Ukrainian
    • Russian

    This provider is available in 37 time zones:

    • Colombia Time (COT)
    • Near East Time (NET)
    • Middle East Time (MET)
    • China Taiwan Time (CTT)
    • Gulf Standard Time (GST)
    • Brazil Eastern Time (BET)
    • Greenwich Mean Time (GMT)
    • India Standard Time (IST)
    View all time zones
    View Profile Visit Website
  • Vention Logotype

    4.9 101 reviews
    Premier Verified
    $50,000+
    $50 - $99 / hr
    1,000 - 9,999
    Wien, Austria

    Services provided

    10% Blockchain
    10% AI Development
    10% Application Testing +7 services
    10% Cloud Consulting & SI
    10% Custom Software Development
    10% DevOps Managed Services
    10% Enterprise App Modernization
    10% IT Staff Augmentation
    10% Mobile App Development
    10% Web Development

    Vention is a versatile software development company providing services that include engineering talent augmentation, MVP development, and AI integration. The reviews highlight Vention's strong culture fit, efficient project management, and exceptional talent, with an impressive 100% satisfaction rate and frequent praise for their responsive account management and seamless integration with client teams.

    See all 101 projects

    Reviews mention Autonomous

    The overall sentiment regarding Vention's autonomy is highly positive. Clients noted that Vention's team operated with minimal oversight, effectively integrating into their processes. One client stated, "They were very autonomous... required very few check-ins to stay on pace," highlighting their ability to adapt to the startup environment. Another mentioned, "Our team lead has transferred our way of thinking... creating an autonomous process," demonstrating their competence and independence in project management. Overall, Vention's autonomy has been a significant asset to their clients.
    • Web Development for Online Marketing Company
      5.0 Feb 7, 2024

      The team was very auto functioning on its own and our project managers at Vention were very responsive for any of our needs. We've been impressed by their flexibility and response time in finding engineers for us.

      Read Full Review
    • Dev Staff Augmentation for B2C Moving Concierge Startup
      5.0 Apr 10, 2020

      They were very autonomous. We’re a small team, with not a lot of managerial resources, but they were able to pace themselves. They required very few check-ins to stay on pace. They’ve been able to roll with us as we go and adapt to what we needed as a startup.

      Read Full Review
    Read All Reviews

    Industry Experience

    Vention has demonstrated significant expertise across various industries, including Information Technology, Consumer Products, Financial Services, Education, and Advertising & Marketing. Clients consistently praise their quick integration into teams, high-quality talent, and effective communication. Sentiment is overwhelmingly positive, particularly in IT and Financial Services, where their contributions have enhanced product development and operational efficiency. Potential clients in these sectors would benefit from Vention's strong engineering capabilities and adaptive approach to project management.

    Read All Reviews

    Select Industry to see insights

    Education Business services Financial services Food & Beverage eCommerce Hospitality & leisure Consulting Social Networking Energy & natural resources Wellness & Fitness Real estate Media Utilities Chemicals & Biotechnology Consumer Products Advertising & marketing Healthcare Software Logistics & Supply Chain Transportation Arts, entertainment & music Other Industry Consumer products & services Information technology IT Services

    Average Project Cost Breakdown

    $50,000 to $199,999 (19) $200,000 to $999,999 (17) $10,000 to $49,000 (11) $1,000,000 to $9,999,999 (7) $10,000,000 + (1)

    What Clients Have Said

    Client feedback on Vention indicates a strong alignment between cost and value for money. Many clients highlighted that Vention's pricing was competitive and fit their budgets, enabling them to access high-quality talent without overspending. For instance, one client noted that Vention's pricing 'fit our budget' and emphasized their value as a partner, stating, 'the engagement made the commercial side feel easy rather than transactional.' Overall, clients expressed satisfaction with the return on investment, often attributing successful project outcomes to the quality of Vention's engineers.
    Read All Reviews

    Wien, Austria

    2 Gertrude-Fröhlich-Sandner-Straße
    Wien, Austria 1100

    2 - 5

    +43 664 1410056

    See All Locations (8)
    View Profile Visit Website
  • Altasoft Software Solutions Logotype

    4.5 1 review
    $5,000+
    $50 - $99 / hr
    10 - 49
    Wien, Austria

    Services provided

    10% Blockchain
    20% IT Staff Augmentation
    20% Mobile App Development +4 services
    20% Web Development
    10% AR/VR Development
    10% Custom Software Development
    10% E-Commerce Development

    Altasoft Software Solutions is an IT outsourcing company that specializes in bridging personnel gaps with skilled software developers, primarily in backend and frontend development. With 100% positive feedback, clients commend their ability to adapt and deliver project needs while providing mid to senior-level developers. Their connections in hard-to-reach countries and expertise in various technologies are highlighted across reviews.

    See all 1 projects

    Industry Experience

    Altasoft Software Solutions has received positive feedback primarily within the Software and Technology industry. Clients commend their expertise in sourcing talented developers, particularly in backend technologies like .NET Core and microservices. Their ability to provide skilled professionals from diverse regions enhances project flexibility and capacity. Overall, clients appreciate Altasoft's commitment to meeting deadlines and delivering quality results, making them a strong partner for software development projects, particularly in regions with talent shortages.

    Read All Reviews

    Select Industry to see insights

    Software

    Average Project Cost Breakdown

    What Clients Have Said

    Clients have expressed that Altasoft Software Solutions provides good value for money, particularly in sourcing skilled developers from diverse countries to meet project needs. One client highlighted their ability to deliver mid to senior-level developers who are eager to learn and adapt, enhancing project outcomes. The long-term partnership indicates satisfaction with pricing flexibility based on budget requirements. Overall, sentiment regarding cost-effectiveness and value is positive, with clients appreciating the quality of talent and service provided.
    Read All Reviews

    Wien, Austria

    Johann Strauss Gasse 3-15
    Wien, Austria 1040

    2 - 5

    +436766112310

    See All Locations (2)
    View Profile
  • THE SWARM DEVELOPMENT GmbH Logotype

    Not yet reviewed

    $5,000+
    $100 - $149 / hr
    10 - 49
    Wien, Austria

    Services provided

    20% Blockchain
    20% Custom Software Development
    15% E-Commerce Development +7 services
    10% AR/VR Development
    10% Web Design
    5% Cybersecurity
    5% IT Strategy Consulting
    5% Mobile App Development
    5% UX/UI Design
    5% Web Development

    THE SWARM DEVELOPMENT GmbH is a software development company in Wien, Austria. They specialize in Custom Software Development and Blockchain.

    Read more
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  • Cryptix AG Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    10 - 49
    Wien, Austria

    Services provided

    25% Blockchain
    25% Cloud Consulting & SI
    25% Cybersecurity +1 service
    25% IT Strategy Consulting

    Cryptix AG, an IT strategy consulting company, offers IT strategy consulting and cloud consulting & SI. The agency is headquartered in Zug, Switzerland and Wien, Austria.

    Read more

    Wien, Austria

    1 Opernring
    Wien, Austria 1010

    16 - 20

    +43 1 2089895

    See All Locations (3)
    View Profile
  • CryptIT GmbH Logotype

    Not yet reviewed

    $5,000+
    $150 - $199 / hr
    10 - 49
    Wien, Austria

    Services provided

    20% Blockchain
    35% Enterprise App Modernization
    20% AI Agents +2 services
    15% Custom Software Development
    10% AI Consulting

    CryptIT GmbH, an Enterprise App Modernization company, is headquartered in Wien, Austria. They provide Enterprise App Modernization and Blockchain and were founded in 2021.

    Read more
    View Profile
  • OG Technologies EU Logotype

    Not yet reviewed

    $25,000+
    $50 - $99 / hr
    2 - 9
    Wien, Austria

    Services provided

    10% Blockchain
    12% IT Strategy Consulting
    10% AI Development +7 services
    10% API Development
    10% Cloud Consulting & SI
    10% Custom Software Development
    10% Cybersecurity
    10% Enterprise App Modernization
    10% Web Development
    8% IT Managed Services

    OG Technologies EU is an IT strategy consulting company. The Wien, Austria-based agency was founded in 2021. Their services include IT strategy consulting and cloud consulting & SI.

    Read more
    $499 Embark on your Web3 journey $999 Elevate your business with Web3 innovation $1,499 Unleash the full potential of your enterprise.

    I will ignite your business with Web3 innovation

    Welcome to OG Technologies EU, your gateway to cutting-edge technology solutions! As the founder, Olvis E. Gil Ríos, I bring a wealth of expertise to elevate your digital experience. Our gig specializes in Web3 development, smart contracts, blockchain solutions, DApp development, and decentralized applications (DApps).
    View Packages
    View Profile
  • Alpine Blockchain Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Brunn am Gebirge, Austria

    Services provided

    30% Blockchain
    30% Blockchain Marketing
    20% Application Testing +1 service
    20% Cybersecurity

    Alpine Blockchain is a Blockchain company. The Brunn am Gebirge, Austria-based team provides Blockchain and Blockchain Marketing.

    Read more
    View Profile
  • OpenValue Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    50 - 249
    Wien, Austria

    Services provided

    20% Blockchain
    60% Custom Software Development
    20% AI Development

    OpenValue is a software development firm. The Wien, Austria-based team offers Custom Software Development and Artificial Intelligence.

    Read more
    View Profile
  • Parsition GmbH Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    10 - 49
    Wien, Austria

    Services provided

    10% Blockchain
    30% Mobile App Development
    20% Web Development +8 services
    5% Custom Software Development
    5% Digital Strategy
    5% E-Commerce Development
    5% Graphic Design
    5% Social Media Marketing
    5% UX/UI Design
    5% Video Production
    5% Web Design

    Parsition GmbH is a mobile application development company. Their small team is headquartered in Wien, Austria. Their team specializes in Mobile App Development and Web Development.

    Read more
    View Profile
  • A.R. Merkeleon GmbH Logotype

    Not yet reviewed

    $5,000+
    $50 - $99 / hr
    50 - 249
    Pöttelsdorf, Austria

    Services provided

    30% Blockchain
    20% Custom Software Development
    20% E-Commerce Development +4 services
    10% Other Application Development
    10% Web Development
    5% IT Managed Services
    5% Mobile App Development

    A.R. Merkeleon GmbH, a Blockchain company, provide Blockchain and Custom Software Development. They were launched in 2009.

    Read more
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Rollover to see company insights or click a company below for more details.

1 Vention
2 Altasoft Software Solutions

List of the Top 2 Vienna Blockchain Development Companies

  1. Vention Logotype

    Vention

    $50,000+
    $50 - $99 / hr
    1,000 - 9,999
    Wien, Austria

    Ability to deliver

    39.8/40.0
    20/20 Reviews
    10/10 Clients & Experience
    9.8/10 Market Presence

    Service focus

    10% Blockchain
    90% Other
    View Profile Visit Website
  2. Altasoft Software Solutions Logotype

    Altasoft Software Solutions

    $5,000+
    $50 - $99 / hr
    10 - 49
    Wien, Austria

    Ability to deliver

    20.8/40.0
    14.6/20 Reviews
    1.7/10 Clients & Experience
    4.6/10 Market Presence

    Service focus

    10% Blockchain
    90% Other
    View Profile Visit Website
  3. THE SWARM DEVELOPMENT GmbH Logotype

    THE SWARM DEVELOPMENT GmbH

    $5,000+
    $100 - $149 / hr
    10 - 49
    Wien, Austria

    Ability to deliver

    10.5/40.0
    0/20 Reviews
    5.9/10 Clients & Experience
    4.6/10 Market Presence

    Service focus

    20% Blockchain
    80% Other
    View Profile Visit Website
  4. Cryptix AG Logotype

    Cryptix AG

    Undisclosed
    Undisclosed
    10 - 49
    Wien, Austria

    Ability to deliver

    5.5/40.0
    0/20 Reviews
    0/10 Clients & Experience
    5.5/10 Market Presence

    Service focus

    25% Blockchain
    75% Other
    View Profile Visit Website
  5. CryptIT GmbH Logotype

    CryptIT GmbH

    $5,000+
    $150 - $199 / hr
    10 - 49
    Wien, Austria

    Ability to deliver

    4.9/40.0
    0/20 Reviews
    0/10 Clients & Experience
    4.9/10 Market Presence

    Service focus

    20% Blockchain
    80% Other
    View Profile Visit Website
  6. OG Technologies EU Logotype

    OG Technologies EU

    $25,000+
    $50 - $99 / hr
    2 - 9
    Wien, Austria

    Ability to deliver

    4.6/40.0
    0/20 Reviews
    0/10 Clients & Experience
    4.6/10 Market Presence

    Service focus

    10% Blockchain
    90% Other
    View Profile Visit Website
  7. Alpine Blockchain Logotype

    Alpine Blockchain

    Undisclosed
    Undisclosed
    2 - 9
    Brunn am Gebirge, Austria

    Ability to deliver

    0/40.0
    0/20 Reviews
    0/10 Clients & Experience
    0/10 Market Presence

    Service focus

    30% Blockchain
    70% Other
    View Profile Visit Website
  8. OpenValue Logotype

    OpenValue

    Undisclosed
    Undisclosed
    50 - 249
    Wien, Austria

    Ability to deliver

    0/40.0
    0/20 Reviews
    0/10 Clients & Experience
    0/10 Market Presence

    Service focus

    20% Blockchain
    80% Other
    View Profile Visit Website
  9. Parsition GmbH Logotype

    Parsition GmbH

    Undisclosed
    Undisclosed
    10 - 49
    Wien, Austria

    Ability to deliver

    4/40.0
    0/20 Reviews
    0/10 Clients & Experience
    4/10 Market Presence

    Service focus

    10% Blockchain
    90% Other
    View Profile Visit Website
  10. A.R. Merkeleon GmbH Logotype

    A.R. Merkeleon GmbH

    $5,000+
    $50 - $99 / hr
    50 - 249
    Pöttelsdorf, Austria

    Ability to deliver

    6.5/40.0
    0/20 Reviews
    0/10 Clients & Experience
    6.5/10 Market Presence

    Service focus

    30% Blockchain
    70% Other
    View Profile Visit Website

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