Company lists · Data refreshed October 2026

Top 17 Blockchain companies based in Seoul, South Korea

RevenueBase identified 93 company matches for blockchain companies associated with Seoul, South Korea as of October 2026 and tracks 891 professional contacts across them, including 87 with verified work emails. Across South Korea, Seoul is the largest hub for this category.

This list covers company matches for blockchain companies associated with Seoul, South Korea, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 1, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Oct 1, 2026 How this list was built
93Companies
891Contacts tracked
87Verified emails
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The 17 largest blockchain companies based in Seoul, South Korea

Ranked by team size
Top 17 of 93 company matches for blockchain companies based in Seoul, South Korea, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSeoul, South KoreaHQ recorded Oct 1, 202651-20066 contacts →

Exact match

“A leading Korea-based digital infrastructure company, DSRV validates for 50+ global networks and provides solutions for next-level building.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
2Exact matchSeoul, South KoreaHQ recorded Oct 1, 202651-20066 contacts →

Exact match

“Originally launched as the in-house blockchain research lab of Dunamu, Lambda256 (co-CEOs Uichung Chung and Yongshin Park) spun off as an independent corporation in March 2019.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3Exact matchSeoul, South KoreaHQ recorded Oct 1, 202651-20047 contacts →

Exact match

“PARAMETA (Former ICONLOOP) is a blockchain-specialized tech company based in Seoul, South Korea.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4Exact matchSeoul, South KoreaHQ recorded Oct 1, 202611-5030 contacts →

Exact match

“A41 is a blockchain infra-service provider that validates and paves paths never ventured before.never ventured before.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5Exact matchSeoul, South KoreaHQ recorded Oct 1, 202611-5024 contacts →

Exact match

“Founded in 2017, TokenPost is South Korea’s leading blockchain and digital asset media platform, dedicated to delivering accurate, data-driven, and insightful journalism in the…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6Exact matchSeoul, South KoreaHQ recorded Oct 1, 202611-5018 contacts →

Exact match

“TEMCO: Innovative Supply Chain Data and E-Commerce Solution through Blockchain and Smart Contract technology.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7Exact matchSeoul, South KoreaHQ recorded Oct 1, 20261-1015 contacts →

Exact match

“Founded in 2017, Catalyze is uniquely positioned to offer clients in-depth insight and recommendations into the Blockchain & Cryptocurrency industry, providing custom research…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8Exact matchSeoul, South KoreaHQ recorded Oct 1, 202611-5015 contacts →

Exact match

“Ozys is a company spearheading blockchain development in South Korea working tirelessly to create unity in the fragmented and dissociated blockchain world.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9Exact matchSeoul, South KoreaHQ recorded Oct 1, 202611-5013 contacts →

Exact match

“071labs is a partner that supports the growth of blockchain startups and promising projects, inspired by the first satoshi of Bitcoin.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10Exact matchSeoul, South KoreaHQ recorded Oct 1, 202651-20010 contacts →

Exact match

“For the last decade, Blockchain Labs (BCL) has been developing blockchain-based infrastructure that operates without cryptocurrency to offer groundbreaking security and…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11Exact matchSeoul, South KoreaHQ recorded Oct 1, 20261-107 contacts →

Exact match

“44 Labs drives innovation in the fusion of physical assets and blockchain technology, focusing on two core business areas: RWA (Real-World Asset) and RWB (Real-World Benefits).”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12Exact matchSeoul, South KoreaHQ recorded Oct 1, 202611-507 contacts →

Exact match

“GoodBlock Ltd.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13Exact matchSeoul, South KoreaHQ recorded Oct 1, 202611-507 contacts →

Exact match

“Harbor X specializes in Blockchain & FinTech business.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14Exact matchSeoul, South KoreaHQ recorded Oct 1, 20261-106 contacts →

Exact match

“bitHolla Inc.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15Exact matchSeoul, South KoreaHQ recorded Oct 1, 202611-505 contacts →

Exact match

“BonoTechnologies provides various services based on experience in operating and developing infrastructure of various virtual assets such as Bitcoin(BTC), Ethereum(ETH), Tokens…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16Exact matchSeoul, South KoreaHQ recorded Oct 1, 20261-101 contacts →

Exact match

“Carry is a platform that connects offline merchants and consumers using blockchain technologies”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17Exact matchSeoul, South KoreaHQ recorded Oct 1, 20261-101 contacts →

Exact match

“We aim to be the most respected blockchain marketing services FIRM in the world.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase

Showing 17 of 93 blockchain companies based in Seoul, South Korea

See the full list, filter by size, metro and specialty, and access 87 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Blockchain companies based in Seoul, South Korea at a glance

As of Oct 1, 2026
9.8%Verified-email coverage
9.6Average contacts per company
11-50Median size (employees)
Oct 1, 2026Page data refreshed

Companies by employee count

1-10
26
11-50
54
51-200
12
1,001-5,000
1

Email recency for this list is measured across the whole South Korea list rather than for Seoul, so it is reported there. Company counts and contact totals on this page are exact for Seoul, over 93 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Seoul, South Korea whose business descriptions match “blockchain companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 87 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on October 1, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “blockchain companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many blockchain companies are there based in Seoul, South Korea?

RevenueBase identified 93 company matches for blockchain companies associated with Seoul, South Korea as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

DSRV tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in South Korea has the most blockchain companies?

Seoul leads South Korea with 93 company records, followed by Seoul Seoul (7) and Seongnam-Si (5).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 87 professional contacts with verified work emails tracked across these 93 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 1, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.