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Top Blockchain Companies & Developers in Vienna

Ratings Updated: June 2, 2026
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2 Leaders 8 Contenders

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 Communicative

    Clients consistently praised Nextrope for their exceptional communication skills. One client noted, "The communication was smooth and we don’t have any remarks," while another highlighted that "communication was at a high level." Additionally, a project manager remarked on the "constant flow of information" and productive meetings with the Nextrope team. Overall, the sentiment regarding Nextrope's communicative abilities is overwhelmingly positive, indicating a strong alignment with client needs and expectations.
    • EIP-20 Ethereum Token for Web3 Solution Provider
      5.0 Mar 12, 2022

      The communication in the project was on a very high level, there was continuous feedback from both sides. The project manager was always up to date and was very helpful with our questions. We had weekly status calls with him but also we were in touch via Discord all the time.

      Read Full Review
    • Blockchain Consulting for EdTech Startup
      5.0 Jan 18, 2021

      The communication was smooth and we don’t have any remarks.

      Read Full Review
    • E-Commerce Development for Clothing & Apparel Platform Startup
      5.0 Jul 20, 2020

      Nextrope was very active and engaged. Communication was at a high level.

      Read Full Review
    • Research & Design for Blockchain Music Streaming Service
      5.0 Apr 1, 2020

      The team at Nextrope was extremely easy to communicate with. Our flow of information was almost constant, and we frequently exchanged ideas during productive meetings.

      Read Full Review
    Read All Reviews
    1 of 1 Blockchain reviews are 5 stars
    1 new review for Blockchain in past 6 months
    $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 demonstrated expertise across various industries, notably in Business Services, Financial Services, Blockchain, and Real Estate. Clients commend their high-quality deliverables, timely project management, and deep understanding of technology, particularly in blockchain solutions. The overall sentiment is overwhelmingly positive, with businesses in PropTech, EdTech, and Finance praising Nextrope's ability to innovate and enhance operational efficiency. Their consulting and development services have significantly impacted clients' strategic goals, making them a strong fit for projects in these sectors.

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    Select Industry to see insights

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

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

    Services provided

    100% Blockchain

    RedDuck is a blockchain development company specializing in delivering comprehensive blockchain solutions, including smart contract development, distributed ledger technology, and decentralized application (DApp) development. Clients consistently praise their technical precision, proactive communication, and ability to deliver projects on time, with a 100% satisfaction rate highlighted across multiple reviews. Their expertise in blockchain technology and strategic product development is noteworthy.

    See all 13 projects
    5 of 5 Blockchain reviews are 5 stars
    2 new reviews for Blockchain in past 6 months
    $50,000 – $199,999 avg. project cost

    Blockchain PROJECT HIGHLIGHT

    Blockchain Development for FinTech Company

    5.0 — RedDuck developed a DeFi platform for a financial technology company. The team built the client's smart contracts, backend infrastructure, frontend app, user dashboard, landing website, and a Read more
    Read 5 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) 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 software development company specializing in providing engineering and staff augmentation services. Reviews emphasize their strong project management, responsiveness, and high-quality talent, with over 80% highlighting their reliable communication and partnership approach. Clients appreciate their ability to integrate seamlessly with in-house teams, adding flexibility and expertise across various technological domains.

    See all 101 projects

    Reviews mention Knowledgeable

    Clients consistently highlight the extensive knowledge and expertise of the engineers from Vention and iTechArt. One client noted that their team not only demonstrated technical strength but also effectively understood the client's business needs, contributing to the development of quality software. Another client emphasized the engineers' proficiency and work ethic, stating they are very knowledgeable and capable of producing high-quality code. Overall, the sentiment regarding their knowledge is overwhelmingly positive, indicating strong client satisfaction.
    • Dev Staff Augmentation for Solar Technology Financing Co
      5.0 Apr 12, 2023

      They’re very knowledgeable and have an amazing work ethic. As we bring on new engineers, I’m committed to continuing using iTechArt due to the quality of work that our current engineers have demonstrated. They have a lot of industry knowledge, so we’re now training them on using our new tools because their work is very valuable to our organization.

      Read Full Review
    • Salesforce Development for Information & Events Company
      5.0 Sep 29, 2021

      They are knowledgeable and easy to work with. They provide a great recommendation.

      Read Full Review
    Read All Reviews

    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 regarding the company's overall cost and value for money is predominantly positive. Clients frequently highlight Vention's competitive pricing and alignment with budgetary constraints, with comments like 'pricing fit our budget' and 'good value for cost.' A client noted that Vention's services resulted in a 50% reduction in Salesforce license costs, indicating strong value. Overall, clients appreciate the quality of work delivered relative to the costs incurred, often stating that the investment has yielded significant returns.
    Read All Reviews

    View projects from:

    United States (61) England (14) Germany (3) Canada (3) Lithuania (2) Israel (2) Iceland (1) Latvia (1) New Zealand (1) Singapore (1) Spain (1) Sweden (1) France (1) Scotland (1) Northern Ireland (1) Cyprus (1)

    This provider is fluent in 2 languages:

    • English
    • German

    This provider is available in 5 time zones:

    • Greenwich Mean Time (GMT)
    • Central Standard Time (CST)
    • Eastern Standard Time (EST)
    • Pacific Standard Time (PST)
    • Mountain Standard Time (MST)

    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 specializing in providing skilled software developers from various countries to meet specific project needs. They are highly praised for their adept professionals and ability to adapt to new technologies, with clients expressing over 90% positive feedback. Altasoft is noted for their successful track record in meeting deadlines and delivering high-quality work in complex projects.

    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
    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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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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