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Top Blockchain Companies & Developers in Copenhagen

Ratings Updated: February 7, 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 Personable

    The feedback highlights Innowise Group's personable approach, noting their 'terrific interpersonal skills' and attentiveness to client needs. The CEO of Allegro Consulting emphasized feeling heard, stating that the team listened to both technical ideas and personal frustrations. Additionally, their 'humanosity' was particularly praised, contributing to a strong sense of collaboration and understanding throughout the project.
    • iOS Mobile App Development for Music Software Company
      5.0 Apr 25, 2023

      The project management is exceptional. They are very attentive to all the technical details and combine that with terrific interpersonal skills. You feel free to express both your technical ideas as well as your dreams and frustrations. You feel in the end that genuine folks have listened fairly and carefully.

      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

    Industry Experience

    Innowise Group has demonstrated extensive expertise across various industries, including healthcare, information technology, financial services, and advertising & marketing. Clients praised their technical proficiency, project management skills, and ability to deliver solutions that enhance operational efficiency. Feedback reveals a consistent sentiment of satisfaction, particularly in healthcare and IT services, with notable improvements in workflow and compliance. Businesses in need of software development, data management, or digital transformation in these sectors would benefit significantly from engaging Innowise.

    Read All Reviews

    Select Industry to see insights

    Design Information technology Advertising & marketing Arts, entertainment & music Software Financial services Energy & natural resources Healthcare Construction Gaming Business services IT Services Consulting Other Industry Consumer Products Telecommunications Human Resources Wellness & Fitness Manufacturing Education

    Berlin, Germany

    63 Kronenstraße
    Berlin, Germany 10117

    16 - 20

    +49 30 520 158 80

    See All Locations (11)
    View Profile Visit Website
    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 Exceeds expectations

    Clients have consistently reported that RedDuck exceeds expectations, particularly in their ability to manage complex, full-cycle development projects with technical precision and creative vision. One CEO noted their proactive approach and strong blockchain expertise, which facilitated the timely launch of a full-featured DeFi platform. The project management was highlighted as exemplary, with clear communication and adaptability to evolving requirements, resulting in a high level of professionalism and satisfaction with the overall outcome.
    • Blockchain Development for FinTech Company
      5.0 Apr 23, 2025

      RedDuck demonstrated excellent project management throughout the engagement. They provided regular progress updates, stuck closely to the development timeline, and were transparent about any adjustments. Communication was clear and responsive — our feedback was always taken into account, and changes were implemented quickly. Overall, they showed a high level of professionalism and adaptability to our evolving requirements. Their team was proactive, detail-oriented, and genuinely invested in the success of our platform. Given the scale and complexity of the project, I didn't personally encounter any issues or areas that stood out as needing improvement. RedDuck handled everything with professionalism, and their structured approach left little room for concern. That said, as with any long-term development partnership, there’s always space to evolve and refine internal processes over time — but in my case, the collaboration was smooth and exceeded expectations.

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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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    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
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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.

    Read more

    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
    View Profile
  • 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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