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Top Blockchain Companies & Developers in Copenhagen

Ratings Updated: February 27, 2026
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1 Leaders 7 Contenders

8 Companies

Country: Denmark
City: Copenhagen

List of the Top Copenhagen Blockchain Development Companies

  • Featured

    What are Featured Providers?

    Innowise Logotype

    Innowise

    4.9 72 reviews
    Premier Verified
    $10,000+
    $50 - $99 / hr
    1,000 - 9,999
    Serves Copenhagen, Denmark

    Services provided

    10% Blockchain
    10% AI Development
    10% AR/VR Development +7 services
    10% Cloud Consulting & SI
    10% Custom Software Development
    10% E-Commerce Development
    10% IT Staff Augmentation
    10% Mobile App Development
    10% Robotics Process Automation
    10% Web Development

    Innowise is a Blockchain Development company noted for its expertise in Blockchain Technology, Smart Contract Development, and Decentralized System Development. Across their reviews, 100% of clients highlight their professionalism, responsiveness, and ability to meet deadlines. Additionally, 80% of reviewers commend their strategic consulting, further emphasizing their depth of expertise and commitment to delivering high-quality blockchain solutions.

    See all 72 projects

    Reviews mention Openness

    Clients express a strong sentiment of openness regarding Innowise Group's communication and adaptability. One client highlighted the team's eagerness to understand project challenges and their flexibility in using the client's management tools. Another client remarked on the team's open-mindedness towards problem-solving and their commitment to addressing client needs. Overall, feedback indicates that Innowise fosters a collaborative environment, ensuring effective communication and responsiveness throughout the project lifecycle.
    • Video Streaming Platform Dev for IT Services Company
      5.0 May 16, 2022

      Communication, easiness and response time. Not only with the developer, Slava we could see how outstanding are his skillks, engament and openess to work with us, but with Buisness Developer Olga, we could see this same values and customer approach. Overall work with Innowise Group was very professional and had the highest standards expected.

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    • Python Code Development for Neurophysiological Startup
      5.0 Apr 28, 2022

      They had good communication skills, and they were open-minded to any problems and solutions. They tried to look at the problem from our perspective, and they were ready to do everything to help us.

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

    Blockchain PROJECT HIGHLIGHT

    Blockchain & Custom Software Dev for Art Management System

    5.0 — Innowise provided blockchain and custom software development services for an art management system. The team developed the MVP of an art certificate tokenization system, managing front- and backend Read more
    Read 5 Reviews

    Average Project Cost Breakdown

    $10,000 to $49,000 (24) $50,000 to $199,999 (17) $200,000 to $999,999 (10) Less than $10,000 (1)

    What Clients Have Said

    Clients consistently praised Innowise Group for their competitive pricing and excellent value for money. Feedback highlighted that their services fit various budgets while delivering high-quality results, as noted by multiple clients who emphasized good cost-to-value ratios. For instance, a CEO mentioned that Innowise's pricing fit their budget and provided great value, while another client appreciated the fair pricing during their ongoing engagement. Overall, the sentiment towards Innowise's cost-effectiveness is overwhelmingly positive, suggesting a strong alignment between quality and affordability.
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    Berlin, Germany

    63 Kronenstraße
    Berlin, Germany 10117

    16 - 20

    +49 30 520 158 80

    See All Locations (11)
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    RedDuck Logotype

    RedDuck

    5.0 13 reviews
    Verified
    $10,000+
    $50 - $99 / hr
    10 - 49
    Serves Copenhagen, Denmark

    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

    Reviews mention Efficient

    Clients consistently praise RedDuck for their efficiency and timely delivery of projects. One CEO noted that the team provided an 'impeccable experience and deliverable product in extremely timely manner,' highlighting their organizational skills. Another client emphasized their 'smart and efficient' approach, which contributed to enhancing the product. Overall, the sentiment surrounding efficiency is overwhelmingly positive, with no identified areas for improvement.
    • Smart Contract Development for Blockchain Company
      5.0 May 17, 2023

      Mark and his team delivered an impeccable experience and deliverable product in an extremely timely manner. These guys were the best! Smart and efficient they brought great ideas to make our product even better! How organized and efficient they are.

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    Industry Experience

    RedDuck demonstrates significant expertise in the Financial Services, Gaming, and Logistics industries, with strong feedback highlighting their proficiency in blockchain development, smart contracts, and project management. Clients praised their ability to deliver secure, efficient solutions tailored to complex requirements, particularly in DeFi and tokenization projects. Overall sentiment is highly positive, particularly within Financial Services, where they are recognized for their innovative approaches and strategic insights, making them a suitable partner for companies in these sectors.

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    Select Industry to see insights

    Financial services Other Industry Logistics & Supply Chain Gaming

    Average Project Cost Breakdown

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

    What Clients Have Said

    Clients consistently praised RedDuck for offering excellent value for money and fitting within their budgetary constraints. One client noted their 'good value for cost' and another highlighted that their pricing 'fit our budget.' Overall sentiment reflects satisfaction with the company's pricing relative to the quality of services provided, with multiple reviews emphasizing timely delivery and effective project management as key aspects of their positive experience.
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    View projects from:

    Germany (1) India (1) South Africa (1) Thailand (1) Ukraine (1) United States (1) England (1)
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  • ERRNA Logotype

    4.8 2 reviews
    $5,000+
    < $25 / hr
    1,000 - 9,999
    Hellerup, Denmark

    Services provided

    60% Blockchain
    10% Cybersecurity
    10% Marketing Strategy +2 services
    10% Mobile App Development
    10% Web Design

    ERRNA offers services including Blockchain Development, Smart Contract Development, and Decentralized Application (DApp) Development. The client feedback highlights ERRNA's ability to deliver secure and effective blockchain solutions on time and within budget. Clients appreciate their professionalism, project management, and the high quality of their developed applications.

    See all 2 projects

    Industry Experience

    ERRNA has received positive feedback primarily from the education industry, with clients highlighting their strengths in product development and project management. Their expertise in managing product roadmaps and backlog prioritization has been beneficial for educational platforms like MyTutor. Overall sentiment reflects strong satisfaction, particularly in communication and alignment with client values, making ERRNA a suitable choice for projects focused on educational technology and development.

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    Select Industry to see insights

    Education

    Average Project Cost Breakdown

    $10,000 to $49,000 (1)

    What Clients Have Said

    Clients have expressed satisfaction with ERRNA's pricing structure, highlighting it as a good fit for their budget and noting the overall value for money. One client emphasized that the company aligned with their values and provided effective project management. Additionally, the quality of team communication and transparency was praised, reinforcing the perception of ERRNA as a cost-effective choice for product development needs.
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    Hellerup, Denmark

    100 Strandvejen
    Hellerup, Denmark 2900

    2 - 5

    +1-435-800-0086

    See All Locations (15)
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  • yellow3 Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    10 - 49
    Hørsholm, Denmark

    Services provided

    100% Blockchain

    Yellow3, a Blockchain company, was founded in 2022. In Miami, Florida and Hørsholm, Denmark, the team provides Blockchain.

    Read more

    Hørsholm, Denmark

    Hovedgaden 43
    Hørsholm, Denmark 2970

    1

    See All Locations (1)
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  • Copenhagen Fintech Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    10 - 49
    København, Denmark

    Services provided

    50% Blockchain
    50% Business Consulting

    Small Blockchain and Business Consulting company Copenhagen Fintech, is based in København, Denmark. The team specializes in Blockchain and Business Consulting.

    Read more
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  • Geotech Infoservices Denmark ApS Logotype

    Not yet reviewed

    $25,000+
    $50 - $99 / hr
    50 - 249
    København, Denmark

    Services provided

    20% Blockchain
    20% Custom Software Development
    20% IT Staff Augmentation +2 services
    20% Mobile App Development
    20% Web Development

    Geotech Infoservices Denmark ApS, an IT staff augmentation company, was founded in 2002. The midsize team offers IT staff augmentation and Custom Software Development.

    Read more
    View Profile
  • Adapt agency Logotype

    Not yet reviewed

    $5,000+
    $100 - $149 / hr
    50 - 249
    København, Denmark

    Services provided

    10% Blockchain
    30% Web Development
    20% Custom Software Development +3 services
    20% E-Commerce Development
    10% UX/UI Design
    10% Web Design

    Adapt agency is a web development firm headquartered in Boston, Massachusetts and København, Denmark. Established in 1998, the team provides Web Development and Custom Software Development.

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    København, Denmark

    Langebrogade 6E, 2nd floor
    København, Denmark 1411

    76 - 100

    +45 33 41 10 50

    See All Locations (3)
    View Profile
  • Blocktech Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    København, Denmark

    Services provided

    50% Blockchain
    50% Custom Software Development

    Based in København, Denmark, Blocktech is a small custom software development company and Blockchain company. Their services include Custom Software Development and Blockchain.

    Read more
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  • Software Alliance Logotype

    4.8 2 reviews
    $10,000+
    $50 - $99 / hr
    50 - 249
    Køge, Denmark

    Services provided

    20% Blockchain
    30% Custom Software Development
    10% AI Development +4 services
    10% AR/VR Development
    10% E-Commerce Development
    10% Mobile App Development
    10% Web Development

    Software Alliance is a comprehensive software development company, providing services such as game engine prototyping, UX design, backend development, web services, mobile applications, and Chrome extensions. Feedback from clients indicates a high level of satisfaction with their efficient project management, direct communication, and ability to deliver quality solutions on time. Approximately 100% of reviewers highlight their adaptability, creativity, and relentless engagement.

    See all 2 projects

    More responsive than most other service providers

    Software Alliance is very responsive

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

    Køge, Denmark

    40 Lyngvej
    Køge, Denmark 4600

    6 - 9

    +4528403173

    See All Locations (1)
    View Profile
  • Twentyfour Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    10 - 49
    København, Denmark

    Services provided

    25% Blockchain
    25% Mobile App Development
    25% Robotics Process Automation +1 service
    25% Web Development

    Twentyfour is a web development firm launched in 2010. The firm focuses on Web Development and Mobile App Development.

    Read more
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1 ERRNA

List of the Top 1 Copenhagen Blockchain Development Companies

  1. ERRNA Logotype

    ERRNA

    $5,000+
    < $25 / hr
    1,000 - 9,999
    San Jose, CA

    Ability to deliver

    32.9/40.0
    16.2/20 Reviews
    9.7/10 Clients & Experience
    7/10 Market Presence

    Service focus

    60% Blockchain
    40% Other
    View Profile Visit Website
  2. yellow3 Logotype

    yellow3

    Undisclosed
    Undisclosed
    10 - 49
    Miami, FL

    Ability to deliver

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

    Service focus

    100% Blockchain
    View Profile Visit Website
  3. Copenhagen Fintech Logotype

    Copenhagen Fintech

    Undisclosed
    Undisclosed
    10 - 49
    København, Denmark

    Ability to deliver

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

    Service focus

    50% Blockchain
    50% Other
    View Profile Visit Website
  4. Geotech Infoservices Denmark ApS Logotype

    Geotech Infoservices Denmark ApS

    $25,000+
    $50 - $99 / hr
    50 - 249
    København, Denmark

    Ability to deliver

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

    Service focus

    20% Blockchain
    80% Other
    View Profile Visit Website
  5. Adapt agency Logotype

    Adapt agency

    $5,000+
    $100 - $149 / hr
    50 - 249
    Boston, MA

    Ability to deliver

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

    Service focus

    10% Blockchain
    90% Other
    View Profile Visit Website
  6. Blocktech Logotype

    Blocktech

    Undisclosed
    Undisclosed
    2 - 9
    København, Denmark

    Ability to deliver

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

    Service focus

    50% Blockchain
    50% Other
    View Profile Visit Website
  7. Software Alliance Logotype

    Software Alliance

    $10,000+
    $50 - $99 / hr
    50 - 249
    Lahore, Pakistan

    Ability to deliver

    14.7/40.0
    0/20 Reviews
    9.6/10 Clients & Experience
    5.2/10 Market Presence

    Service focus

    20% Blockchain
    80% Other
    View Profile Visit Website
  8. Twentyfour Logotype

    Twentyfour

    Undisclosed
    Undisclosed
    10 - 49
    København, Denmark

    Ability to deliver

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

    Service focus

    25% Blockchain
    75% Other
    View Profile Visit Website

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