Top Blockchain Companies & Developers in Seoul

Ratings Updated: October 12, 2026

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4 Companies

Country: South Korea

City: Seoul

List of the Top Seoul Blockchain Development Companies

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DESH.Group

5.0 7 reviews

$5,000+

$25 - $49 / hr

10 - 49

Serves Seoul, South Korea

Services provided

40% Blockchain

25% AI Development

25% UX/UI Design +1 service

10% Blockchain Marketing

DESH.Group is a blockchain technology company specializing in distributed ledger development, smart contract development, and decentralized application (DApp) development. They received overwhelmingly positive feedback, with 100% of reviewers praising their integration of web/mobile development and blockchain solutions into a scalable product ecosystem. The company's unique blend of technical and user experience expertise was consistently highlighted.

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1 of 1 Blockchain reviews are 5 stars

1 new review for Blockchain in past 6 months

$10,000 – $49,000 avg. project cost

Blockchain PROJECT HIGHLIGHT

Blockchain Development Services for Health & Wellness Co
5.0 — DESH.Group provided blockchain development services for a health and wellness company. The team wrote smart contracts, conducted security reviews, created growth hacks, and provided weekly updates. Read more
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Australia (1) Poland (1)

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$5,000 Web3 startups building an MVP $12,000 Companies launching Web3 products $25,000 Businesses building complex Web3 ecosystems

Blockchain MVP Development
End-to-end blockchain development for startups and businesses - from product discovery and architecture to smart contracts, dApps, wallet integrations and production launch. Ideal for teams building secure, scalable Web3 products on Ethereum and other EVM-compatible networks.
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RedDuck

5.0 16 reviews

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$5,000+

$50 - $99 / hr

10 - 49

Serves Seoul, South Korea

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.

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7 of 7 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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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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Switzerland (2) United States (2) Germany (1) India (1) South Africa (1) Thailand (1) Ukraine (1) England (1)

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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.
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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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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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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)

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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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Seoul, South Korea

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

+919770477239

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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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Review Rating from Clients

4.5/5.0

Quality

4.0

Schedule

4.0

Cost

5.0

Willing to Refer

4.5

Seoul-based clients praise Mckinley & Rice Inc. for their quick, responsible web development, especially under tight deadlines. They value clear communication, customization skills, and consistent project management, highlighting their ability to deliver quality work on schedule.
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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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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 Infograins Software Solutions

2 Rock'n'Block

3 Mckinley & Rice Inc.

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 3 Seoul Blockchain Development Companies

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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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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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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Specialties

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

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Top Blockchain Companies & Developers in Seoul

List of the Top Seoul Blockchain Development Companies

Blockchain Development Services for Health & Wellness Co

Blockchain MVP Development

Blockchain Development for FinTech Company

RedDuck is very responsive

Software Development (Ethereum/EVM)

Infograins Software Solutions is very responsive

Blockchain Launch Package

Industry Experience

Select Industry to see insights

Average Project Cost Breakdown

What Clients Have Said