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Top Blockchain Companies & Developers in Copenhagen

Ratings Updated: October 14, 2026
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2 Leaders 6 Contenders

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8 Companies

Country: Denmark
City: Copenhagen

List of the Top Copenhagen 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 Copenhagen, Denmark

    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 Creative

    Nextrope has received positive feedback regarding their creative solutions and high-quality work. A CEO noted their impressive design samples and the beauty of the platform they developed, emphasizing that Nextrope's creativity was evident in the project. The client praised their responsiveness and efficiency, stating that the platform's appealing design contributed to a 90% response rate from potential clients. Overall, the sentiment reflects a strong appreciation for Nextrope's creative capabilities.
    • Web & Mobile App Development for Content Management Company
      5.0 Apr 2, 2020

      Nextrope is very creative in their solutions, they provide only the highest quality of work and never settle on less. They also work very fast and respond very quickly to any changes that are required.

      Read Full Review
    Read All Reviews

    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 projects from:

    Poland (11) United Arab Emirates (2) Estonia (1) Norway (1) England (1)
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    RedDuck Logotype

    RedDuck

    5.0 17 reviews
    Verified Clutch Guarantee
    $5,000+
    $50 - $99 / hr
    10 - 49
    Serves Copenhagen, Denmark

    Services provided

    90% Blockchain
    10% Web Development

    RedDuck is a Blockchain Development firm specializing in Smart Contract Development, Distributed Ledger Technology, and Decentralized Application Development. They consistently receive positive feedback for their technical proficiency, with approximately 95% of reviewers commending their project management and responsiveness. Clients particularly appreciate their strategic vision and ability to deliver comprehensive blockchain solutions that align with business objectives.

    See all 17 projects
    4 of 4 reviews are 5 stars
    3 new reviews for Blockchain services
    $50,000 – $199,999 avg. project cost

    Reviewed 4 times in the past 6 months

    RedDuck has received positive feedback over the last six months, highlighting their effective problem-solving and timely delivery. Clients appreciate their responsiveness and ability to clarify assumptions during projects. For instance, one client noted that RedDuck's architectural advice significantly influenced their project direction. Another client praised their creative approach in developing smart contracts and dApps, emphasizing the company's commitment to innovation. Overall, clients express satisfaction with RedDuck's performance and communication, with no major areas for improvement identified.
    Read 4 Recent Reviews

    Industry Experience

    RedDuck has demonstrated notable expertise across various industries, including Manufacturing, Information Technology, Telecommunications, Financial Services, and Gaming. Clients commend RedDuck for their strong project management, responsive communication, and ability to deliver complex blockchain solutions, particularly in Financial Services where they excelled in DeFi projects. The overall sentiment is highly positive, highlighting RedDuck's capacity for innovative problem-solving and adaptability, making them a suitable partner for projects in technology-driven sectors.

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    Select Industry to see insights

    Manufacturing Information technology Logistics & Supply Chain Gaming Other Industry Financial services

    Average Project Cost Breakdown

    $50,000 to $199,999 (7) $10,000 to $49,000 (1)

    What Clients Have Said

    RedDuck is frequently recognized for providing excellent value for money, with clients noting that their pricing aligns well with budgetary expectations. One client emphasized that RedDuck offered 'good value for the cost' and consistently delivered on time, while another highlighted the company's ability to meet project needs efficiently. Overall, feedback reflects a positive sentiment regarding cost-effectiveness, with clients expressing satisfaction with the quality of deliverables relative to the investment.
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    $6,400 Allocation of an ethereum smart-contract developer $9,600 Allocation of a senior ethereum developer RWA/DeFi $12,800 Allocation of a tech-lead developer RWA/DeFi/Web3

    Software Development (Ethereum/EVM)

    Development of Blockchain/Web3 software focusing on smart-contracts / DeFi / RWA on Ethereum network.
    View Packages
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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.
    Read All Reviews

    Hellerup, Denmark

    100 Strandvejen
    Hellerup, Denmark 2900

    2 - 5

    +1-435-800-0086

    See All Locations (33)
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  • Infograins Software Solutions Logotype

    4.9 89 reviews
    $5,000+
    $50 - $99 / hr
    250 - 999
    Køge, Denmark

    Services provided

    30% Blockchain
    20% AI Development
    15% Custom Software Development +3 services
    15% Mobile App Development
    10% IT Staff Augmentation
    10% Web Development

    Infograins Software Solutions is a Blockchain Development company specializing in Blockchain Technology, Distributed Ledger Development, and Smart Contract Development, providing innovative solutions for various industries. Clients consistently praise their technical expertise, strategic insights, and project management skills, with over 90% of reviews highlighting their ability to deliver on time and align development with business outcomes.

    See all 89 projects
    14 of 14 Blockchain reviews are 5 stars
    2 new reviews for Blockchain in past 6 months
    $1,000,000 – $9,999,999 avg. project cost

    Blockchain PROJECT HIGHLIGHT

    AI Implementation & Development for Digital AI Solutions Platform

    5.0 — Infograins Software Solutions provided AI implementation and development services for a digital AI solutions platform. The team was responsible for consumer engagement analysis, performance Read more
    Read 14 Reviews

    Industry Experience

    Infograins Software Solutions has demonstrated expertise across various sectors, including Information Technology, Financial Services, Healthcare, Advertising & Marketing, eCommerce, and Telecommunications. Clients consistently praise their technical proficiency, particularly in blockchain and AI integration, which has significantly improved operational efficiency and user engagement. Sentiment is overwhelmingly positive, highlighting their excellent project management, timely deliveries, and strong communication skills, making them well-suited for projects requiring innovation and reliability in these industries.

    Read All Reviews

    Select Industry to see insights

    Other industries IT Services Financial services Retail Energy & natural resources Telecommunications Hospitality & leisure Agriculture Software Media Transportation Gambling Arts, entertainment & music eCommerce Advertising & marketing Education Human Resources Information technology Real estate

    More responsive than most other service providers

    Infograins Software Solutions 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

    Værkstedsvej
    Køge, Denmark 4600

    1

    +447401232155

    See All Locations (40)
    View Profile
  • 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 (4)
    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
  • 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
    View Profile
  • 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 (3)
    View Profile

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1 ERRNA
2 Infograins Software Solutions

List of the Top 2 Copenhagen Blockchain Development Companies

  1. ERRNA Logotype

    ERRNA

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

    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. Infograins Software Solutions Logotype

    Infograins Software Solutions

    $5,000+
    $50 - $99 / hr
    250 - 999
    Køge, Denmark

    Ability to deliver

    30/40.0
    20/20 Reviews
    10/10 Clients & Experience
    0/10 Market Presence

    Service focus

    30% Blockchain
    70% Other
    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
    København, Denmark

    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. 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
  8. yellow3 Logotype

    yellow3

    Undisclosed
    Undisclosed
    10 - 49
    Hørsholm, Denmark

    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

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