Leave a Review For Providers 0 0
  • Get a Quote
Home Blockchain South Korea Seoul

Top Blockchain Companies & Developers in Seoul

Ratings Updated: November 11, 2026
We verify reviews and evaluate companies so you can choose with confidence. We may earn a fee for some placements. Learn how Clutch ensures trust

3 Leaders 1 Contenders

Get A Quote

4 Companies

Country: South Korea
City: Seoul

List of the Top Seoul Blockchain Development Companies

  • Featured

    What are Featured Providers?

    DESH.Group Logotype

    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.

    See all 7 projects
    2 of 2 reviews are 5 stars
    1 new review for Blockchain services
    $10,000 – $49,000 avg. project cost

    Reviewed 2 times in the past 6 months

    Recent reviews of DESH.Group highlight a strong performance in UI/UX design and development for various projects, with clients noting successful delivery of complex features and improved user satisfaction. One client emphasized the team's proactive communication and ability to meet deadlines, while another praised their expertise in Web3 product development. Despite some suggestions for enhanced communication and initial technical clarity, the overall sentiment reflects high client satisfaction and appreciation for DESH.Group's responsiveness and quality of work.
    Read 2 Recent Reviews

    Industry Experience

    DESH.Group has demonstrated expertise in the Telecommunications and Financial Services industries. In Telecommunications, they excelled in UI/UX redesign, enhancing user satisfaction and reducing support requests significantly. In Financial Services, their strong capabilities in Web3 product development and blockchain integration facilitated the creation of scalable, user-friendly platforms. Overall, their responsive project management and collaborative approach have garnered positive feedback, making them a suitable partner for projects that require innovative design and technical scalability in these sectors.

    Read All Reviews

    Select Industry to see insights

    Financial services

    View projects from:

    Australia (1) Poland (1)
    $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.
    View Packages
    View Profile Visit Website
    RedDuck Logotype

    RedDuck

    5.0 17 reviews
    Verified Clutch Guarantee
    $5,000+
    $50 - $99 / hr
    10 - 49
    Serves Seoul, South Korea

    Services provided

    90% Blockchain
    10% Web Development

    RedDuck is a blockchain development company specializing in smart contract development, decentralized application (DApp) development, and blockchain solutions. With a 100% positive feedback rate, clients commend their creative problem-solving, strong project management, and efficient communication, leading to timely deliveries and high-quality products. Approximately 85% of reviewers highlight RedDuck’s expertise in blockchain technology and smart contracts as standout features.

    See all 17 projects

    Reviews mention Communicative

    RedDuck has received positive feedback regarding its communicative approach, with clients highlighting proactive communication and timely project delivery. One client noted that RedDuck was 'super-active in terms of communication' and conducted daily stand-ups, ensuring consistent updates. Another client emphasized their excellent communication, stating that RedDuck often delivers ahead of schedule and maintains a smooth flow of information, making collaboration effective and enjoyable. Overall, the sentiment reflects a strong appreciation for RedDuck's commitment to communication.
    • Web Development for Blockchain Game
      5.0 Jan 27, 2022

      The communication is excellent, and things go smoothly. We’re happier with RedDuck than with all the companies we’ve worked with in the past. We really like how they handle communication and deadlines. RedDuck works hard, and if they can’t get their stuff together, they work late in the night.

      Read Full Review
    • Platform Development for Financial Services Company
      5.0 Jul 31, 2023

      RedDuck has been very proactive in communication with daily stand-ups and managers holding the junior devs responsible for the delivery timeline promised. They have also been super-active in terms of communication. The senior guys Mark & Dmytro really show care about the quality of the work their team delivers and step in as and when required.

      Read Full Review
    Read All Reviews
    8 of 8 Blockchain reviews are 5 stars
    3 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
    Read 8 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.

    Read All Reviews

    Select Industry to see insights

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

    View projects from:

    Switzerland (2) United States (2) Germany (1) India (1) Marshall Islands (1) South Africa (1) Thailand (1) Ukraine (1) England (1)
    View Profile Visit Website
  • Infograins Software Solutions Logotype

    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.

    See all 89 projects

    Average Project Cost Breakdown

    $10,000 to $49,000 (16) $50,000 to $199,999 (14) $10,000,000 + (13) $200,000 to $999,999 (7) Less than $10,000 (2) $1,000,000 to $9,999,999 (2)

    What Clients Have Said

    Clients consistently highlight Infograins Software Solutions for offering competitive pricing and good value for money. Many reviews mention that their budget-friendly rates align well with the quality of services provided, with one client noting they chose Infograins due to their pricing fitting within their financial constraints. Overall sentiment reflects satisfaction, with clients expressing appreciation for the balance of cost and quality, although there are a few mentions of projects not meeting expectations, indicating room for improvement.
    Read All Reviews

    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)
    $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.
    View Packages

    Seoul, South Korea

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

    2 - 5

    +919770477239

    See All Locations (40)
    View Profile
  • Rock'n'Block Logotype

    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.

    See all 2 projects

    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.

    Read All Reviews

    Select Industry to see insights

    Software

    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.
    Read All Reviews

    Seoul, South Korea

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

    10 - 15

    See All Locations (3)
    View Profile
  • Mckinley & Rice Inc. Logotype

    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.

    See all 1 projects

    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.

    Read All Reviews

    Select Industry to see insights

    Financial services

    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.
    Read All Reviews

    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 quickly duplicating, customizing, and localizing a financial company’s website using WordPress, WooCommerce, and AWS. The reviewer highlights the team’s accountability, frequent communication, and ability to meet a tight deadline.
    Read Local Reviews
    View Profile

    • Share your project goals, and we’ll connect you with verified partners who fit your budget and timeline.

    Get My Matches
  • ITDA Logotype

    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.

    Read more
    View Profile

Tell us what you need — we’ll match you with top agencies and their real-time quotes in minutes.

Get My Quotes
tracking image

Why Trust Clutch

At Clutch, we believe trust is the foundation of every business relationship. Our mission is to help buyers make confident, data-backed decisions informed by real client experiences.

Every review on Clutch undergoes a rigorous, human-led verification process to make sure it’s valid. Our team of specialists confirms the identity of each reviewer, ensures the project is legitimate, and only publishes reviews that meet our strict criteria.

Verification doesn’t stop at the point of publication. Our Trust & Safety team routinely audits older reviews against our guidelines. When reviews fall short of our standards, we remove them.

We evaluate service providers using a structured methodology that combines:

  • In-depth client interviews and ratings
  • Comprehensive project details
  • Market presence
  • Portfolio examples and industry recognition

This data powers tools like the Leaders Matrix, which helps you compare agencies directly. Our research team curates rankings by weighing verified reviews most heavily, so the most trusted and experienced providers rise to the top.

Using this unique combination of verified client feedback and provider-supplied insights, Clutch distills the most important details into clear, digestible summaries so you have everything you need to make confident, informed decisions quickly.

We take fraud seriously. Providers who violate our guidelines may face lower rankings, restricted visibility, or removal from the platform altogether.

Clutch’s commitment to transparency is ongoing. We’re constantly refining our systems to protect the integrity of reviews and support you in finding the right agency.

Ability to deliver
Focus
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.

List of the Top 3 Seoul Blockchain Development Companies

  1. Infograins Software Solutions Logotype

    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
    View Profile Visit Website
  2. Rock'n'Block Logotype

    Rock'n'Block

    $10,000+
    $50 - $99 / hr
    50 - 249
    Seoul, South Korea

    Ability to deliver

    22.1/40.0
    16.2/20 Reviews
    1.8/10 Clients & Experience
    4.1/10 Market Presence

    Service focus

    100% Blockchain
    View Profile Visit Website
  3. Mckinley & Rice Inc. Logotype

    Mckinley & Rice Inc.

    $25,000+
    $25 - $49 / hr
    50 - 249
    Seoul, South Korea

    Ability to deliver

    22.3/40.0
    14.6/20 Reviews
    3.7/10 Clients & Experience
    4/10 Market Presence

    Service focus

    10% Blockchain
    90% Other
    View Profile Visit Website
  4. ITDA Logotype

    ITDA

    $10,000+
    $25 - $49 / hr
    2 - 9
    seoul, South Korea

    Ability to deliver

    10.7/40.0
    0/20 Reviews
    7.7/10 Clients & Experience
    3/10 Market Presence

    Service focus

    10% Blockchain
    90% Other
    View Profile Visit Website

Similar Categories

Related Services

AR/VR in Seoul Web Developers in Seoul Mobile App Development in Seoul eCommerce in Seoul Artificial Intelligence in Seoul

Specialties

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

Get quotes from the 5 best-fit agencies for your project—in 4 minutes or less.