Leave a Review For Providers 0 0
  • Post a Project
Home Blockchain South Korea

Top Blockchain Companies & Developers in South Korea

Ratings Updated: December 14, 2025
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
Get Matched

0 Leaders 4 Contenders

4 Companies

Country: South Korea

List of the Top South Korea Blockchain Development Companies

  • Featured

    What are Featured Providers?

    RedDuck Logotype

    RedDuck

    5.0 13 reviews
    Verified
    $10,000+
    $50 - $99 / hr
    10 - 49
    Serves South Korea

    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.

    See all 13 projects

    Reviews mention Transparent

    Clients have consistently praised RedDuck for their transparency throughout the project lifecycle. One CEO noted that RedDuck provided regular progress updates and was transparent about any necessary adjustments. Clear and responsive communication was highlighted, with feedback being quickly implemented. The overall sentiment reflects a strong appreciation for RedDuck's professionalism and adaptability, establishing them as a reliable development partner that prioritizes client engagement and satisfaction.
    • 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.

      Read Full Review
    Read All Reviews

    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.
    Get in Touch

    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)
    View all time zones

    Kyiv, Ukraine

    12 Saperne Pole Street
    Kyiv, Ukraine 02000

    21 - 30

    +380500673074

    See All Locations (1)
    View Profile Visit Website
  • Savvycom Software Logotype

    4.8 9 reviews
    Verified
    $10,000+
    $25 - $49 / hr
    250 - 999
    Hanoi, Vietnam

    Services provided

    10% Blockchain
    35% Custom Software Development
    10% IT Staff Augmentation +7 services
    10% Mobile App Development
    10% Web Development
    5% Application Testing
    5% Generative AI
    5% IT Managed Services
    5% UX/UI Design
    5% Web Design

    Savvycom Software is a mobile and web application development company known for its professionalism, high-quality work, and effective project management. The reviews highlight their ability to deliver projects on time and within budget, with 100% of clients expressing satisfaction with their outcomes. Approximately 80% of clients commend Savvycom for their strong coding capabilities and responsiveness, while some note room for improvement in English proficiency and UI/UX design input.

    See all 9 projects

    Reviews mention Well-organized projects

    Savvycom Software has received positive feedback regarding their project organization, with clients noting effective communication and a structured agile approach. One client highlighted the seamless transition during staff changes, ensuring continuity and stability in operations. They appreciated the founder's involvement, which minimized bureaucracy and facilitated direct collaboration. Overall, the sentiment reflects satisfaction with Savvycom's well-organized project management, leading to improved efficiency and cost-effectiveness compared to other outsourcing options.
    • ACW Consulting Development Partnership
      5.0 Jun 4, 2014

      In Vietnam, our efficiency is probably 30 to 40 percent better than the other outsourcers. A big part of it is that we control the development process, having an agile team. You can drive the conversation harder, and that works very well.

      Read Full Review
    Read All Reviews

    Average Project Cost Breakdown

    $50,000 to $199,999 (3) Less than $10,000 (2) $200,000 to $999,999 (2)

    What Clients Have Said

    Clients have generally expressed satisfaction with Savvycom Software's cost-effectiveness and value for money. One client noted their investment of approximately $27,000 yielded a high-quality, functional app, while another praised their reasonable pricing compared to local Australian development costs, which were six times higher. Overall, feedback indicates that Savvycom delivers quality work within budget constraints, with a strong emphasis on professionalism and timely delivery.
    Read All Reviews

    View projects from:

    Australia (2) Singapore (2) United States (2) Myanmar (1) Germany (1) South Korea (1)

    This provider is fluent in 4 languages:

    • Vietnamese
    • English
    • Korean
    • Japanese

    This provider is available in 2 time zones:

    • Vietnam Standard Time (VST)
    • Singapore Standard Time (SGT)

    Bangkok, Thailand

    96 Charan Sanit Wong Road
    Bangkok, Thailand 10700

    2 - 5

    See All Locations (4)
    View Profile Visit Website
  • 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

    seoul, South Korea

    33-17, Seochojungang-ro 20-gil, Seocho-gu
    seoul, South Korea 137-070

    2 - 5

    +82(10)63665053

    See All Locations (1)
    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

    Oldham, England

    275 Featherstall Road North
    Oldham, England OL1 2NJ

    31 - 40

    +14184768723

    See All Locations (3)
    View Profile

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

    Get My Matches
  • 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 platforms like WordPress and WooCommerce. Feedback is overwhelmingly positive, with 100% of reviews highlighting satisfaction with their fast delivery and responsiveness, particularly under tight deadlines. Clients appreciate their commitment to delivering as per client specifications.

    See all 1 projects

    Industry Experience

    Mckinley & Rice Inc. has demonstrated expertise in the financial services industry, particularly in website development and customization using WordPress and AWS. Clients commend their project management skills, timely delivery, and responsiveness, even under tight deadlines. Overall sentiment is highly positive, indicating strong performance and client satisfaction. This indicates that organizations within the financial sector seeking reliable web solutions and support would find Mckinley & Rice Inc. to be a suitable partner.

    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 pricing relative to the value delivered. One reviewer noted that despite a tight schedule, the company successfully met deadlines and provided quality work, emphasizing their commitment to client requirements. The overall sentiment reflects a strong appreciation for their responsiveness and project management, with no significant concerns raised regarding cost-effectiveness. Clients feel they receive good value for their investment.
    Read All Reviews

    Pune, India

    Workcult-204, Platinum Square
    Pune, India 411014

    41 - 49

    See All Locations (3)
    View Profile

Tell us what you need — we’ll match you with top agencies in minutes.

Get My Matches
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.

List of the Top South Korea Blockchain Development Companies

  1. ITDA Logotype

    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
    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

    23.9/40.0
    16.2/20 Reviews
    1.8/10 Clients & Experience
    6/10 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

    23.6/40.0
    14.6/20 Reviews
    3.7/10 Clients & Experience
    5.3/10 Market Presence

    Service focus

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

    Savvycom Software

    $10,000+
    $25 - $49 / hr
    250 - 999
    Hanoi, Vietnam

    Ability to deliver

    29.5/40.0
    15.6/20 Reviews
    8/10 Clients & Experience
    5.8/10 Market Presence

    Service focus

    10% Blockchain
    90% Other
    View Profile Visit Website

Similar Categories

Related Services

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
View More

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