Top Blockchain Companies & Developers in South Korea

Ratings Updated: September 11, 2026

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4 Companies

Country: South Korea

List of the Top South Korea Blockchain Development Companies

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RedDuck

5.0 16 reviews

Verified

$5,000+

$50 - $99 / hr

10 - 49

Serves South Korea

Services provided

90% Blockchain

10% Web Development

RedDuck is a Blockchain Development company specializing in Distributed Ledger Technology, Smart Contract Development, and Decentralized Application (DApp) Development. Reviews highlight their strong project management skills and responsiveness, with 100% positive feedback on their ability to meet deadlines and adapt to client needs. Clients frequently commend their technical precision and strategic approach, ensuring high-quality deliverables.

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3 of 3 reviews are 5 stars

2 new reviews for Blockchain services

$50,000 – $199,999 avg. project cost

Reviewed 3 times in the past 6 months
RedDuck has received positive feedback over the past six months, with clients highlighting their effective communication and timely project delivery. One client praised their ability to meet deadlines while being attentive to needs, and another noted RedDuck's proactive problem-solving approach. Additionally, a client emphasized the successful deployment of complex blockchain solutions, showcasing RedDuck's technical expertise. Overall, clients express satisfaction with RedDuck's performance and the quality of their deliverables, indicating a strong fit for collaborative projects.
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Industry Experience

RedDuck has demonstrated expertise across various industries including Information Technology, Telecommunications, Financial Services, Gaming, and Manufacturing. Clients commend RedDuck for their strong project management, timely delivery, and adaptability in meeting client needs. Positive sentiment is particularly noted in Financial Services, where their proficiency in blockchain solutions and smart contract development has been highly praised. Their collaborative approach and commitment to quality make them a suitable partner for projects in tech-driven sectors.
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Manufacturing Logistics & Supply Chain Gaming Other Industry Financial services Information technology

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Average Project Cost Breakdown

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

What Clients Have Said
RedDuck has received positive feedback regarding its overall value for money. Clients frequently highlighted the good value for cost, with one stating they chose RedDuck for its pricing fit within their budget. Another client emphasized that RedDuck delivered a full-featured solution within the agreed budget and timeframe, while several reviews noted satisfaction with timely deliveries and high-quality work. Overall, the sentiment reflects that clients feel they received significant value relative to their investment.
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Switzerland (2) United States (2) Germany (1) India (1) South Africa (1) Thailand (1) Ukraine (1) England (1)

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ITDA

Not yet reviewed

$10,000+

$25 - $49 / hr

2 - 9

seoul, South Korea

Services provided

10% Blockchain

20% Custom Software Development

20% E-Commerce Development +4 services

20% Mobile App Development

20% Web Development

5% IT Strategy Consulting

5% Other IT Consulting and SI

Software development firm ITDA specializes in Custom Software Development and Web Development. They were launched in 2021.
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Rock'n'Block

5.0 2 reviews

$10,000+

$50 - $99 / hr

50 - 249

Seoul, South Korea

Services provided

100% Blockchain

Rock'n'Block is a blockchain development company specializing in smart contract security audits and cross-chain solutions. Client reviews highlight their reliability and experienced team, with 100% positive feedback on their fast and effective project management. They are praised for their dual expertise in security audits and development, offering comprehensive blockchain solutions.

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Industry Experience

Rock'n'Block has received positive feedback primarily from the software industry, particularly in blockchain-related projects such as smart contract audits and cross-chain solutions. Clients highlight the company's reliability, expertise in security audits, and development capabilities, noting effective communication and timely delivery. Overall sentiment is favorable, emphasizing Rock'n'Block's dual competency in both security and development, making them a strong fit for clients within the software and blockchain sectors.
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Software

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Average Project Cost Breakdown

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

What Clients Have Said
Clients commend Rock'n'Block for their competitive pricing and strong value for money. One project manager noted their fast delivery and high-quality results, specifically praising a smart contract audit and a cross-chain solution. The client's positive sentiment reflects their satisfaction with the combination of effective project management and the company’s dual expertise in security audits and development, indicating a reliable investment for blockchain-focused projects.
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Seoul, South Korea

5th floor, 40, Godeok-ro, Gangdong-gu
Seoul, South Korea 05251
10 - 15

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Mckinley & Rice Inc.

4.5 1 review

$25,000+

$25 - $49 / hr

50 - 249

Seoul, South Korea

Services provided

10% Blockchain

25% Mobile App Development

25% Web Development +7 services

10% AI Development

5% Application Management & Support

5% Application Testing

5% Custom Software Development

5% E-Commerce Development

5% Enterprise App Modernization

5% IT Staff Augmentation

Mckinley & Rice Inc. is a web development company specializing in website duplication, customization, and localization using WordPress, WooCommerce, and AWS. They received positive feedback for their project management skills, meeting tight deadlines, and responsiveness, with 100% satisfaction from reviewers. Clients appreciate their dedication to delivering client-specific solutions and responsibility in handling projects.

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Industry Experience

Mckinley & Rice Inc. has demonstrated expertise in the financial services sector, particularly in website development and customization. Clients commend their ability to meet tight deadlines and their strong communication throughout projects. The overall sentiment is highly positive, emphasizing their reliability and responsiveness. This company is well-suited for clients within financial services seeking efficient and tailored digital solutions.
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Financial services

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Average Project Cost Breakdown

What Clients Have Said
Clients have expressed satisfaction with Mckinley & Rice Inc.'s value for money, noting their ability to deliver quality work within tight deadlines. One client highlighted their responsiveness and commitment, stating they 'did a good job' and met all expectations without any areas for improvement. Overall, the sentiment indicates that the company's pricing aligns well with the quality of service provided, making them a reliable choice for projects requiring efficient execution.
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Infograins Software Solutions

4.9 89 reviews

$5,000+

$50 - $99 / hr

250 - 999

Seoul, South Korea

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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2 of 2 reviews are 5 stars

2 new reviews for Blockchain services

$10,000 – $49,000 avg. project cost

Reviewed 2 times in the past 6 months
Recent reviews of Infograins Software Solutions reflect a highly positive sentiment, highlighting their expertise in developing AI and blockchain applications. Clients praised their project management efficiency and responsiveness, noting significant improvements in operational metrics, such as a 60% reduction in loan approval times and a 25% increase in user engagement. The team's ability to deliver on time and adapt to evolving requirements was particularly commendable, with no major areas for improvement identified by clients.
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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 eCommerce Advertising & marketing Education Human Resources Information technology Real estate

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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)

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Seoul, South Korea

Hanyang Building 59-1 Gangnam-daero 6-gil, Seocho-gu
Seoul, South Korea 06786
2 - 5

+919770477239

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Clutch Leaders Matrix

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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.

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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 South Korea Blockchain Development Companies

ITDA

$10,000+

$25 - $49 / hr

2 - 9

seoul, South Korea

Ability to deliver

11.7/40.0

0/20 Reviews

7.7/10 Clients & Experience

4/10 Market Presence

Service focus

10% Blockchain

90% Other

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Rock'n'Block

$10,000+

$50 - $99 / hr

50 - 249

Seoul, South Korea

Ability to deliver

23.9/40.0

16.2/20 Reviews

1.8/10 Clients & Experience

6/10 Market Presence

Service focus

100% Blockchain

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Mckinley & Rice Inc.

$25,000+

$25 - $49 / hr

50 - 249

Seoul, South Korea

Ability to deliver

23.6/40.0

14.6/20 Reviews

3.7/10 Clients & Experience

5.3/10 Market Presence

Service focus

10% Blockchain

90% Other

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Infograins Software Solutions

$5,000+

$50 - $99 / hr

250 - 999

Seoul, South Korea

Ability to deliver

30/40.0

20/20 Reviews

10/10 Clients & Experience

0/10 Market Presence

Service focus

30% Blockchain

70% Other

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Web Developers in South Korea Software Developers in South Korea Mobile App Development in South Korea eCommerce in South Korea Artificial Intelligence in South Korea

Specialties

Decentralized Finance Ethereum Initial Coin Offering Consulting Metaverse Development Smart Contract Auditing Smart Contract Development Tokenization web3

Popular Locations in South Korea

Blockchain in Seoul

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Top Blockchain Companies & Developers in South Korea

List of the Top South Korea Blockchain Development Companies

Reviewed 3 times in the past 6 months

Industry Experience

Select Industry to see insights

Average Project Cost Breakdown

What Clients Have Said

Industry Experience

Select Industry to see insights

Average Project Cost Breakdown

What Clients Have Said

Industry Experience

Select Industry to see insights

Average Project Cost Breakdown

What Clients Have Said

Reviewed 2 times in the past 6 months

Industry Experience

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List of the Top South Korea Blockchain Development Companies

Similar Categories

Related Services

Specialties

Popular Locations in South Korea