Top Blockchain Companies & Developers in Copenhagen

Ratings Updated: August 11, 2026

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9 Companies

Country: Denmark

City: Copenhagen

List of the Top Copenhagen Blockchain Development Companies

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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.

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Reviews mention Efficient
Nextrope has consistently received positive feedback regarding their efficiency in project execution. Clients noted their 'great efficiency and speed' in conducting audits and delivering services without delays. For instance, one client praised the team for their 'fantastic ability to recognize our needs,' which facilitated a smooth workflow. Another emphasized the 'attention to detail' coupled with rapid delivery of materials, highlighting Nextrope's commitment to timely and effective project management.

Cybersecurity Audit for Blockchain-Based Company

5.0 Dec 8, 2021

Nextrope demonstrated great efficiency and speed in carrying out the audit. There were no unnecessary delays.
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Digital Marketing for Blockchain Conference

4.5 Apr 1, 2020

Attention to detail in delivering materials, with the simultaneous efficiency in doing so very quickly.
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Research & Design for Blockchain Music Streaming Service

5.0 Apr 1, 2020

Nextrope works extremely efficiently and pragmatically. The Nextrope team understood our hosting needs perfectly and recognized the importance of the smart contracts.
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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
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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.
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Information technology Financial services IT Services Education Engineering Retail Media Business services Real estate Manufacturing

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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.
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RedDuck

5.0 14 reviews

Verified

$5,000+

$50 - $99 / hr

10 - 49

Serves Copenhagen, Denmark

Services provided

90% Blockchain

10% Web Development

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.

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Reviews mention Transparent
Clients have expressed high satisfaction with RedDuck's transparency throughout their projects. One CEO noted that RedDuck provided regular progress updates and was open about any necessary adjustments, fostering clear communication. The project management was characterized by responsiveness to feedback and adherence to timelines, which contributed to the overall success of the project. This level of transparency and professionalism has been highlighted as a key factor in establishing trust and ensuring a smooth collaboration.

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.
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Industry Experience

RedDuck has demonstrated significant expertise across various industries, notably Telecommunications, Financial Services, Gaming, and other tech-driven sectors. Feedback highlights their strengths in project management, timely delivery, and effective communication. Clients appreciate their ability to navigate complex development needs, particularly in blockchain and fintech environments. Overall, sentiment remains highly positive, suggesting RedDuck is particularly well-suited for projects in Financial Services and Blockchain-related industries, where their technical skills and strategic insight can drive impactful outcomes.
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Financial services Logistics & Supply Chain Gaming Other Industry

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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.
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View projects from:

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

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Infograins Software Solutions

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.

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

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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.
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$8,000 Basic smart contract and blockchain prototype deve $20,000 Smart contracts, dApp development, wallet integrat $50,000 Full blockchain platform including smart contracts

Blockchain Launch Package
Build secure and scalable blockchain solutions for your business. Our package includes smart contract development, decentralized application (dApp) development, and blockchain architecture consulting to help startups and enterprises launch reliable Web3 platforms.
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ERRNA

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.

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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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Education

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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

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Copenhagen Fintech

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.
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Geotech Infoservices Denmark ApS

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.
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Adapt agency

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

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Blocktech

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.
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Twentyfour

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.
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yellow3

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.
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Hørsholm, Denmark

Hovedgaden 43
Hørsholm, Denmark 2970
1

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Software Alliance

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.

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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

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Køge, Denmark

40 Lyngvej
Køge, Denmark 4600
6 - 9

+4528403173

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Ability to deliver

Focus

Proven

Market Leaders

Emerging

Niche

Clutch Leaders Matrix

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

1 ERRNA

2 Infograins Software Solutions

A Clutch Leaders Matrix provides a broad view of the top-performing companies in a particular service or location. Each company featured in a Leaders Matrix is evaluated based on Focus and Ability to Deliver. The size of each circle indicates that company’s size.

By using verified reviews, focused service details, and real project data, the Leaders Matrix highlights companies that consistently deliver and stand out from the rest. Each company’s position is based on how well they focus on a service area and how consistently they deliver results, helping you make informed, confident decisions. Learn More

Focus (x-axis)

Focus accounts for a company’s specialization within a certain service.

Ability to Deliver (y-axis)

Ability to Deliver considers three criteria:

Client feedback and reviews
Work experience and previous projects
Market presence and reputation in the industry

List of the Top 2 Copenhagen Blockchain Development Companies

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

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Infograins Software Solutions

$5,000+

$50 - $99 / hr

250 - 999

Køge, Denmark

Ability to deliver

39.4/40.0

20/20 Reviews

10/10 Clients & Experience

9.4/10 Market Presence

Service focus

30% Blockchain

70% Other

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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

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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

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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

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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

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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

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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

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Software Alliance

$10,000+

$50 - $99 / hr

50 - 249

Køge, Denmark

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

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Top Blockchain Companies & Developers in Copenhagen

List of the Top Copenhagen Blockchain Development Companies

Reviews mention Efficient

Cybersecurity Audit for Blockchain-Based Company

Digital Marketing for Blockchain Conference

Research & Design for Blockchain Music Streaming Service

Blockchain Platform Dev for Real Estate Investment Platform

Industry Experience

Select Industry to see insights

Nextrope is very responsive

Reviews mention Transparent

Blockchain Development for FinTech Company

Industry Experience

Select Industry to see insights

RedDuck is very responsive

AI Implementation & Development for Digital AI Solutions Platform

Industry Experience

Select Industry to see insights

Infograins Software Solutions is very responsive

Blockchain Launch Package

Industry Experience

Select Industry to see insights

Average Project Cost Breakdown

What Clients Have Said

Software Alliance is very responsive

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List of the Top 2 Copenhagen Blockchain Development Companies

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