Company lists · Data refreshed September 2026

Top 25 Semiconductor manufacturers based in South Korea

Name: Semiconductor manufacturers based in South Korea
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 115 companies tracked

RevenueBase identified 115 semiconductor manufacturers headquartered in South Korea as of September 2026 and tracks 8,795 professional contacts across them, including 190 with verified work emails. Seoul is the largest hub.

This list covers semiconductor manufacturers headquartered in South Korea, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review

115Companies

8,795Contacts tracked

190Verified emails

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The 25 largest semiconductor manufacturers based in South Korea

Ranked by team size

Top 25 of 115 semiconductor manufacturers based in South Korea, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to semiconductor manufacturers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	SK Hynix	Partial evidence	Icheon, South KoreaHQ checked Sep 17, 2026	10001+	5,655 contacts →
	Partial evidence “Semiconductors are essential to all IT products, and its performance often determines the performance of the final products.” Source: RevenueBase Database · checked Sep 17, 2026
2	Magnachip Semiconductor	Strong evidence	충청북도, South KoreaHQ checked Sep 17, 2026	201-500	263 contacts →
	Strong evidence “Magnachip is a designer and manufacturer of analog and mixed-signal power semiconductor platform solutions for various applications, including industrial, automotive…” Source: RevenueBase Database · checked Sep 17, 2026
3	SK Keyfoundry Sk키파운드리	Partial evidence	청주, South KoreaHQ checked Sep 17, 2026	1,001-5,000	203 contacts →
	Partial evidence “Headquartered in Korea, SK keyfoundry provides specialty Analog and Mixed-Signal foundry services for semiconductor companies to serve a wide range of applications in the…” Source: RevenueBase Database · checked Sep 17, 2026
4	BOS Semiconductors	Partial evidence	Seongnam, South KoreaHQ checked Sep 17, 2026	201-500	154 contacts →
	Partial evidence “BOS Semiconductors was launched with the vision of “Leading mobility innovation with system semiconductors” mainly targeting autonomous driving SOC, HPC, and Gateway SOC in the…” Source: RevenueBase Database · checked Sep 17, 2026
5	Simmtech	Indirect evidence	Cheong Ju, South KoreaHQ checked Sep 17, 2026	5,001-10,000	114 contacts →
	Indirect evidence “SIMMTECH Co, Ltd.\| Enabling a Better World with PCB Innovation Headquartered in South Korea, SIMMTECH Co, Ltd.” Source: RevenueBase Database · checked Sep 17, 2026
6	Surplusglobal	Partial evidence	Yongin-si, South KoreaHQ checked Sep 17, 2026	51-200	88 contacts →
	Partial evidence “The World's Largest Legacy Semiconductor Equipment Depot SurplusGLOBAL, Inc, a global legacy semiconductor equipment market leader, has over a thousand pieces of equipment in our…” Source: RevenueBase Database · checked Sep 17, 2026
7	Hana Micron INC	Indirect evidence	Asan, South KoreaHQ checked Sep 17, 2026	1,001-5,000	86 contacts →
	Indirect evidence “Established in 2001, Hana Micron is one of the fastest growing companies specializing in innovative, state-of-the-art packaging solutions and world-class test manufacturing…” Source: RevenueBase Database · checked Sep 17, 2026
8	Silicon Mitus	Indirect evidence	Seongnam, South KoreaHQ checked Sep 17, 2026	201-500	80 contacts →
	Indirect evidence “Silicon Mitus, Inc.” Source: RevenueBase Database · checked Sep 17, 2026
9	DB Hitek	Indirect evidence	Bucheon, South KoreaHQ checked Sep 17, 2026	1,001-5,000	80 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
10	유진테크	Indirect evidence	이천시, South KoreaHQ checked Sep 17, 2026	201-500	47 contacts →
	Indirect evidence “Single Wafer LPCVD ALD, Batch.” Source: RevenueBase Database · checked Sep 17, 2026
11	Intekplus	Indirect evidence	Daejeon, South KoreaHQ checked Sep 17, 2026	201-500	35 contacts →
	Indirect evidence “INTEKPLUS Co Ltd is a company based out of South Korea.” Source: RevenueBase Database · checked Sep 17, 2026
12	MK Electron	Partial evidence	Yongin-si, South KoreaHQ checked Sep 17, 2026	201-500	32 contacts →
	Partial evidence “Since 1982, MK Electron(MKE) has taken a central role in the semiconductor industry through the developing of basic materials.” Source: RevenueBase Database · checked Sep 17, 2026
13	Daewon Semiconductor Packaging Industrial Co., LTD	Partial evidence	Hanam-si, South KoreaHQ checked Sep 17, 2026	51-200	23 contacts →
	Partial evidence “Daewon Semiconductor Packaging Industrial Co, Ltd.” Source: RevenueBase Database · checked Sep 17, 2026
14	Genesem INC	Partial evidence	Incheon, South KoreaHQ checked Sep 17, 2026	51-200	18 contacts →
	Partial evidence “Genesem develops and supplies a wide array of semiconductor manufacturing equipment and laser markers, PCB markers, and vision inspection systems to its clients around the world.” Source: RevenueBase Database · checked Sep 17, 2026
15	Baum Design Systems	Indirect evidence	Seoul, South KoreaHQ checked Sep 17, 2026	11-50	13 contacts →
	Indirect evidence “Baum’s vision is to shift-left and accelerate sustainable and low-power silicon by dramatically increasing the energy efficiency through innovative products and solutions that…” Source: RevenueBase Database · checked Sep 17, 2026
16	Iron Device Corporation	Partial evidence	Seoul, South KoreaHQ checked Sep 17, 2026	11-50	12 contacts →
	Partial evidence “Iron Device Corporation is a mixed-signal semiconductor company, providing leading-edge digital/analog/power-mixed single silicon device solution.” Source: RevenueBase Database · checked Sep 17, 2026
17	RANIX	Indirect evidence	Seoul, South KoreaHQ checked Sep 17, 2026	51-200	12 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
18	Trinno Technology	Partial evidence	안양시, South KoreaHQ checked Sep 17, 2026	11-50	12 contacts →
	Partial evidence “TRinno Technology is standing for "TRansistor Innovation' of Power Semiconductor.” Source: RevenueBase Database · checked Sep 17, 2026
19	Gwanak Analog	Partial evidence	Seoul, South KoreaHQ checked Sep 17, 2026	51-200	10 contacts →
	Partial evidence “Gwanak Analog is an innovative, Korea-based, Fabless Semiconductor startup focused on providing highly energy efficient and easy-to-use power/analog SoC solutions for systems…” Source: RevenueBase Database · checked Sep 17, 2026
20	Power Master Semiconductor	Partial evidence	Cheongju-si, South KoreaHQ checked Sep 17, 2026	201-500	10 contacts →
	Partial evidence “Power Master Semiconductor was founded in January 2018 by a group of experts with more than 20 year’s experience of design, application, process and marketing area at leading…” Source: RevenueBase Database · checked Sep 17, 2026
21	4lynx, INC	Partial evidence	Seongnam-si, South KoreaHQ checked Sep 17, 2026	11-50	6 contacts →
	Partial evidence “4lynx is a pioneering company in the semiconductor industry, specializing in cutting-edge interface IP solutions.” Source: RevenueBase Database · checked Sep 17, 2026
22	JD Component Co.,ltd	Indirect evidence	Yeongdeungpo-gu, South KoreaHQ checked Sep 17, 2026	11-50	5 contacts →
	Indirect evidence “Since the establishment, we have done our best to ensure internal stability so that we cannot yield to any internal and external obstacles, while not blindly seeking external…” Source: RevenueBase Database · checked Sep 17, 2026
23	k.c.tech	Indirect evidence	Seoul, South KoreaHQ checked Sep 17, 2026	11-50	5 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
24	Semi Korea	Indirect evidence	서울시, South KoreaHQ checked Sep 17, 2026	11-50	3 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
25	디바이스이엔지	Indirect evidence	Asan-si, South KoreaHQ checked Sep 17, 2026	1-10	2 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: semiconductor manufacturers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names semiconductor manufacturers.
Partial evidence: Its own public description names part of semiconductor manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name semiconductor manufacturers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 115 semiconductor manufacturers based in South Korea

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Semiconductor manufacturers based in South Korea at a glance

As of Sep 17, 2026

2.2%Verified-email coverage

76.5Average contacts per company

51-200Median size (employees)

21.7%Largest-city concentration · Seoul

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for South Korea, so it is reported there. Company counts and contact totals on this page are exact for South Korea, over 115 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among semiconductor manufacturers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in South Korea whose own description of what they do matches “semiconductor manufacturers”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names semiconductor manufacturers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among semiconductor manufacturers, and records with no verified work email. Companies headquartered outside South Korea are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 190 across the full list. 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 September 17, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Semiconductor manufacturers by metro

Semiconductor manufacturers in Seoul25

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names semiconductor manufacturers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many semiconductor manufacturers are there based in South Korea?

RevenueBase identified 115 semiconductor manufacturers headquartered in South Korea as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

SK Hynix, headquartered in Icheon, tops this list with the largest team on record.

Which city has the most semiconductor manufacturers?

Seoul leads with 25 headquartered companies, followed by Yongin-Si (6) and Seongnam-Si (4).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 190 verified decision-maker contacts tracked across these 115 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 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 Smart Search, 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.