Top Blockchain Development Companies in South Korea

Researched by:Goodfirms Research TeamUpdated:September 14, 2026

Goodfirms has reviewed 5 Blockchain Development Companies in South Korea as of September 2026. The top-ranked firm is Hashed (0.0 stars, 0 verified reviews, NA, Guro-gu). Across the category, the median hourly rate is $75, median client rating is 0, and 40% of firms employ 50+ members. Explore the vetted Blockchain Development Companies in South Korea below, compare their strengths, and connect with the provider best suited to your requirements.

Are you looking for blockchain companies in South Korea? Here is a listing of the top blockchain development companies in South Korea created with the aid of the research exercise of Goodfirms. The business upsides of blockchain innovation are extraordinary. It has crammed the lack of a bit of cutting-edge advancement in technology! Speed, straightforwardness, safety, minimal attempt - the affirmatives of this tech are more than enough. Blockchains have vanquished monetary transactions via the advent of virtual currencies, and they're revolutionizing other industrial areas, too. Are you in want of a reliable blockchain developer for your subsequent task? Goodfirms expects to help with a rundown of the top blockchain companies below:

Goodfirms has verified 5 Blockchain Development Companies in South Korea - part of 3,197+ Blockchain Development Companies, each passing Goodfirms' 4-step verification process (background check, client interviews, portfolio audit, ongoing quality review). Listings marked "Sponsored" are agencies that pay for premium placement - sponsorship does not affect star ratings or review content.

Top 10 at Glance

Compare the highest-ranked firms first side by side.

Rank
Company
Rating
Reviews
Hourly Rate
Team Size
Founded
Location
Action

List of Top South Korea Blockchain Development Companies & Developers

Find a Blockchain Development Company Near you
Find a Blockchain Development Company Near you
Service
Hourly Rate
Employees
ReviewsAll Companies
Industry
Client Type
  • Based in South Korea and San Francisco, Hashed has realized meaningful gains in the crypto industry. More importantly, Hashed prides in itself for having nurtured an ecosystem for the industry’s growth. Led by serial entrepreneurs and engineers, Hashed has expedited global blockchain adoption through strategic investment and community building. In particular, Hashed advises Klaytn, Kakao’s ... read Hashed reviews & insights

    NA
    10 - 49
    Guro-gu, South Korea
  • Blocko is a Samsung-backed commercial blockchain provider offering multinational organizations the ability to design, deploy, and manage digital services on a secure distributed network. Enterprise-IT integration and cloud deployment know-how are at the core of its value proposition. The company provides a stable and secure blockchain operating system and an easy-to-use development platform with stable ... read Blocko reviews & insights

    NA
    50 - 249
    2014
    Seongnam, South Korea
  • The HollaEx team has cumulated over a decade's worth of experience in crypto technology development. Our mission — create customized, future-proofed technology to help guide businesses into the age of Web3 blockchain-driven services. HollaEx has developed software of the same name with the goal of further lowering the barriers to entry in the crypto industry. ... read HollaEx reviews & insights

    NA
    10 - 49
    2016
    Seoul, South Korea
  • AirCUVE is a South Korean technology company specializing in authentication, identity management, network security, and access-control solutions. Founded in 2002, the company has developed security technologies designed to protect users, devices, applications, and corporate networks against unauthorized access and identity-related threats. AirCUVE focuses particularly on Multi-Factor Authentication (MFA), Identity and Access Management (IAM), passwordless authentication, ... read AirCUVE reviews & insights

    $50 - $99/hr
    10 - 49
    2002
    Seoul, South Korea
  • Creatip is the leading independent digital marketing agency based in Korea, offering the full range of digital marketing services, especially to global brands planning to expand their business into the Korean market. With over 14 years of experience, we have achieved outstanding performance for our clients in diverse industries such as travel, fashion, beauty, IT, ... read Creatip global reviews & insights

    NA
    50 - 249
    2008
    Seoul, South Korea

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2 states with the best Value Score for hiring.

Ranked by a composite blending firm count (supply), average rating (quality), and average hourly rate (cost). Affordability is weighted highest (50%), so this surfaces genuinely affordable destinations - not just the biggest markets.

Where the firms are.

Bubble size shows how many firms each country has; colour shows its average hourly rate. Tap any country for its firm count, average rate, rating, and Value Score.

Loading map…

All states ranked by Value Score.

Every state in scope, ranked by Value Score.

StateFirmsAvg RateAvg RatingValue ScoreAction
KRSeoul4$75/hr-52View firms
KRGyeonggi-do1--8View firms
KRSeoul
4 firms$75/hr
Value Score52 / 100
KRGyeonggi-do
1 firms
Value Score8 / 100

Match by work-hour overlap with your team.

Cost matters - but so does being able to actually talk to your developer during your workday. Here are the best destinations for each major hub.

If you're in US (PT/ET)Recommended

Look for nearshore LATAM partners - same-day collaboration, similar time zones, and 50-60% cost savings vs domestic.

MXMexico~7h overlap
ARArgentina~6h overlap
BRBrazil~5h overlap
CACanada~8h overlap
If you're in Europe (CET/GMT)Recommended

Eastern Europe is your sweet spot - 1-2h time zone shift, EU GDPR alignment, and 40-50% lower rates than Western Europe.

PLPoland~8h overlap
UAUkraine~7h overlap
RORomania~7h overlap
ZASouth Africa~8h overlap

How firms are placed on the matrix

Every position on this chart is the output of the Goodfirms ranking algorithm - a weighted composite of signals across two axes. The algorithm is recomputed regularly and is fully documented.

Sponsorship does not affect placement. PRO members receive visible badges and ad placements, but their algorithmic scores are calculated identically to free listings.

Read the full methodology
Algorithm at a glance
1
X-axis (Core Competencies): Service Focus Ratio + Portfolio Depth + Quality + Experience
2
Y-axis (360-Performance): Client Reviews + Market Presence + Goodfirms Score
3
Missing signals are excluded from a firm's score, not substituted with defaults - weights redistribute across remaining inputs
4
Recency decay over the last 18 months keeps stale reviews from dominating
5
Eligibility floor: ≥ 1 published review in this category scope

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States with the best Value Score for blockchain development hiring.

Ranked by a composite score blending firm count (supply), average rating (quality), and median hourly rate (cost). Affordability is weighted highest (50%), so this list surfaces actually affordable destinations rather than just-big markets.

Mid-tier leader
Seoul · $50-99/hr

1 firms in this tier - more than any other state. Top picks: AirCUVE.

Loading heatmap…
Cell intensity (firm density):
Low
High
Best Value marks the densest, highest-rated, most-affordable cell per row

Top 1 recommended companies by Value Score.

Ranked across all heatmap cells - each blends a low hourly rate, a strong rating, and sufficient review volume.

How the heatmap is built

Every cell in the grid above is the count of firms in (place × hourly-rate tier). Firms are placed by their published hourly rate; those without a disclosed rate are not plotted.

Top company names per cell are surfaced by Value Score - a weighted blend of affordability (50%) + rating (35%) + review volume (15%).

The "Best" ribbon marks the cell in each row where firm density, ratings, and affordability line up best - the densest, highest-quality combination.

Read the full methodology
Value Score · per firm
ValueScore = 0.50 × Affordability
+ 0.35 × Rating
+ 0.15 × Review Volume
// All sub-scores normalized 0-100
// Affordability = (1 - rate/$200) × 100
// Rating = (rating - 3) / 2 × 100
// Volume = log10(reviews+1)/log10(200) × 100

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