Top Blockchain Companies & Developers in Copenhagen

Ratings Updated: May 4, 2026

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2 Leaders 7 Contenders

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 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.
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Blockchain Consulting for EdTech Startup

5.0 Jan 18, 2021

The communication was smooth and we don’t have any remarks.
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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.
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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.
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1 of 1 reviews is 5 stars

1 new review for Blockchain services

$10,000 – $49,000 avg. project cost

Reviewed 1 time in the past 6 months
Recent reviews for Nextrope reflect a strong overall sentiment, highlighting their proactive and adaptable approach in project execution. Clients commend the team's commitment and ownership, particularly in developing a secure blockchain-based real estate platform that significantly reduced manual processes and ensured compliance with EU standards. Notably, one client appreciated Nextrope's ability to respond swiftly to evolving requirements, suggesting a high level of flexibility and understanding of business needs. Minor areas for improvement were noted, but overall feedback remains highly positive.
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Average Project Cost Breakdown

$10,000 to $49,000 (10) Less than $10,000 (4) $50,000 to $199,999 (2)

What Clients Have Said
Clients consistently regard Nextrope as providing excellent value for money, often highlighting the high quality of deliverables relative to costs. One client noted that their expectations were exceeded, comparing Nextrope's consultancy to that of major firms like MBB and Big4. Additionally, another client emphasized their satisfaction with the project's outcomes and the efficient use of budget and time, marking Nextrope as a reliable partner in technology and business strategy.
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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 13 reviews

$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.

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Reviews mention Professional
Clients consistently highlight RedDuck's exemplary professionalism, noting their ability to manage complex projects with technical precision and creativity. One client emphasized their clear communication and responsiveness, stating, 'RedDuck showed a high level of professionalism and adaptability to our evolving requirements.' Another praised their structured approach, which left little room for concern, indicating a strong commitment to client success and satisfaction. Overall, feedback reflects a positive sentiment towards RedDuck's professional capabilities.

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.
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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
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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)

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)

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Infograins Software Solutions

4.9 89 reviews

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Premier Verified

$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 that excels in integrating advanced technologies like AI, blockchain, and smart contracts into practical solutions. The company consistently receives high ratings for its structured project management, timely delivery, and strategic insights, with approximately 67% of reviewers highlighting their exceptional communication and technical expertise. Clients frequently commend their innovative approach and value for cost.

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Reviews mention Easy to reach
Clients have consistently praised Infograins Software Solutions for their accessibility and communication. One client noted, "Easy to get in touch with them anytime," highlighting the company's responsiveness. Additionally, the use of various communication tools and virtual meetings contributed to effective project management. Overall, the sentiment is highly positive regarding their ease of communication, which has facilitated smooth collaboration and support throughout the project.

Blockchain Services for Blockchain Company

5.0 Jun 5, 2023

Easy to get in touch with them anytime, We have direct flight too, so visiting to there headquarter is very easy for me.
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Industry Experience

Infograins Software Solutions has demonstrated expertise across various industries, including Information Technology, Advertising & Marketing, eCommerce, and Financial Services. Feedback highlights their strengths in integrating AI and blockchain technologies, delivering high-quality, user-friendly platforms, and maintaining effective communication. Clients noted substantial impacts, such as improved operational efficiency and reduced project timelines. Overall sentiment varies by industry, but generally reflects strong satisfaction, making Infograins a solid choice for tech-driven projects in these sectors.
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Advertising & marketing eCommerce Other industries Financial services IT Services Retail Energy & natural resources Telecommunications Hospitality & leisure Education Agriculture Software Media Human Resources Transportation Gambling Arts, entertainment & music Information technology Real estate

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View projects from:

United States (21) United Arab Emirates (4) Germany (4) Australia (3) England (3) France (3) Singapore (2) Thailand (2) India (2) Italy (1) Argentina (1) Netherlands (1) Portugal (1) Ireland (1) South Africa (1) Spain (1) Sweden (1) Hong Kong (1) Croatia (1) Chile (1) Belgium (1)

This provider is fluent in 2 languages:

English

Hindi

This provider is available in 14 time zones:

Near East Time (NET)

Middle East Time (MET)

Brazil Eastern Time (BET)

Greenwich Mean Time (GMT)

India Standard Time (IST)

Eastern African Time (EAT)

Central European Time (CET)

Eastern European Time (EET)

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Køge, Denmark

Værkstedsvej
Køge, Denmark 4600
1

+447401232155

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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.
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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 Communicative

EIP-20 Ethereum Token for Web3 Solution Provider

Blockchain Consulting for EdTech Startup

E-Commerce Development for Clothing & Apparel Platform Startup

Research & Design for Blockchain Music Streaming Service

Reviewed 1 time in the past 6 months

Average Project Cost Breakdown

What Clients Have Said

Nextrope is very responsive

Reviews mention Professional

Blockchain Development for FinTech Company

Blockchain Development for FinTech Company

Average Project Cost Breakdown

What Clients Have Said

Reviews mention Easy to reach

Blockchain Services for Blockchain Company

Industry Experience

Select Industry to see insights

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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