Company lists · Data refreshed November 2026

Top 25 Engineering companies based in South Korea

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 177 companies tracked

This directory lists 177 engineering companies based in South Korea, with 48,143 contacts and 1,653 email addresses. The list includes companies across engineering disciplines, and Seoul is the single most-represented city among the companies on the list. Use it to identify potential suppliers, partners, and sales prospects as of November 2026.

Engineering companies apply scientific, mathematical, and technical principles to design, develop, test, and manage products, systems, structures, or industrial processes. This list covers companies that provide engineering design, consulting, testing, project management, or related technical services. Ranked by team size, largest first. Data current as of November 6, 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 Nov 6, 2026 86% judged on-target in blind review

177Companies

48,143Contacts tracked

1,653Verified emails

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The 25 largest engineering companies based in South Korea

Ranked by team size

Top 25 of 177 engineering companies based in South Korea, ranked by team size, largest first. Data refreshed Nov 6, 2026. RevenueBase Smart Search rates how each company's information relates to engineering companies: 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	Samsung E&a	Strong evidence	Gangdong-gu, South KoreaHQ checked Nov 6, 2026	5,001-10,000	7,517 contacts →
	Strong evidence “SAMSUNG E&A is one of the world’s leading engineering, procurement, construction and project management (EPC & PM) companies.” Source: RevenueBase Database · checked Nov 6, 2026
2	GS E&c	Strong evidence	Seoul, South KoreaHQ checked Nov 6, 2026	5,001-10,000	6,556 contacts →
	Strong evidence “GS E&C is Korea`s representative global contractor leveraging its experience in Civil Engineering, Building, Oil & Gas, Power Plants and Renewable Energy to continually provide…” Source: RevenueBase Database · checked Nov 6, 2026
3	Daewoo Engineering & Construction Co.,ltd	Indirect evidence	Seoul, South KoreaHQ checked Nov 6, 2026	5,001-10,000	5,115 contacts →
	Indirect evidence “Daewoo E&C has been enriching people’s lives ever since its establishment in 1973.” Source: RevenueBase Database · checked Nov 6, 2026
4	Hyundai Engineering Co. LTD	Strong evidence	서울시, South KoreaHQ checked Nov 6, 2026	5,001-10,000	3,298 contacts →
	Strong evidence “Hyundai Engineering is a global engineering company providing integrated solutions across energy, process plants, buildings, and asset management.” Source: RevenueBase Database · checked Nov 6, 2026
5	SK Engineering & Construction Co. LTD	Indirect evidence	Seoul, South KoreaHQ checked Nov 6, 2026	5,001-10,000	3,227 contacts →
	Indirect evidence “Since its establishment in 1977, SK ecoplant has been pursuing sustainable growth and stability, along with its consistent efforts to achieve the happiness of humanity and a…” Source: RevenueBase Database · checked Nov 6, 2026
6	DL E&c Co., LTD	Indirect evidence	Seoul, South KoreaHQ checked Nov 6, 2026	5,001-10,000	3,032 contacts →
	Indirect evidence “DL E&C started off as Korea’s first construction company and has grown into a global corporation.” Source: RevenueBase Database · checked Nov 6, 2026
7	Samsung C&t, Engineering & Construction	Strong evidence	Seoul, South KoreaHQ checked Nov 6, 2026	5,001-10,000	1,296 contacts →
	Strong evidence “Samsung C&T Engineering & Construction is a global leader in construction and engineering, delivering world-class projects that shape cities and industries.” Source: RevenueBase Database · checked Nov 6, 2026
8	Dohwa Engineering	Strong evidence	Seoul City, South KoreaHQ checked Nov 6, 2026	1,001-5,000	223 contacts →
	Strong evidence “DOHWA ENGINEERING CO, LTD.(DOHWA) is one of the top reputed civil engineering firms in South Korea, established in 1957 as the first one of its kind in the country.” Source: RevenueBase Database · checked Nov 6, 2026
9	Techcross	Indirect evidence	서울특별시 강남구, South KoreaHQ checked Nov 6, 2026	1,001-5,000	196 contacts →
	Indirect evidence “Techcross, World’s No.1 in BWMS market.” Source: RevenueBase Database · checked Nov 6, 2026
10	삼성중공업	Indirect evidence	성남시, South KoreaHQ checked Nov 6, 2026	5,001-10,000	176 contacts →
	Indirect evidence “Samsung Heavy Industries has successfully completed many of the world's first and largest shipbuilding and offshore EPC projects, with the sole aim of establishing global…” Source: RevenueBase Database · checked Nov 6, 2026
11	SK E&c	Indirect evidence	Seoul, South KoreaHQ checked Nov 6, 2026	10001+	162 contacts →
	Indirect evidence “Who We Are This page is being SK E&C has been growing steadily to gain solid reputation for providing civil, transportation, and telecommunication infrastructure as well as…” Source: RevenueBase Database · checked Nov 6, 2026
12	Dongbu Corporation	Indirect evidence	Seoul, South KoreaHQ checked Nov 6, 2026	1,001-5,000	158 contacts →
	Indirect evidence “Dongbu Corporation, a major affiliate of Dongbu Group, is Korea’s top-tier construction contractor, with a reputation for providing high efficient and technically advanced…” Source: RevenueBase Database · checked Nov 6, 2026
13	Sambo E & C	Strong evidence	Seoul City, South KoreaHQ checked Nov 6, 2026	1,001-5,000	145 contacts →
	Strong evidence “With its establishment in 1976, Sambo E&C has been highly competetive in such civil engineering as Subway, Highway, Express Railroad, Maritime Construction and Design and…” Source: RevenueBase Database · checked Nov 6, 2026
14	Sunjin Engineering & Architecture Co., LTD	Strong evidence	Gwacheon, South KoreaHQ checked Nov 6, 2026	1,001-5,000	94 contacts →
	Strong evidence “SUNJIN Engineering & Architecture is a globally recognized multidisciplinary consulting firm headquartered in Gwacheon, South Korea.” Source: RevenueBase Database · checked Nov 6, 2026
15	GS Entec	Strong evidence	Ulsan, South KoreaHQ checked Nov 6, 2026	201-500	46 contacts →
	Strong evidence “Based on our differentiated technology and clients'confidence, GS Entec contributes to making the world more energetic and vibrant by engineering and manufacturing the equipments…” Source: RevenueBase Database · checked Nov 6, 2026
16	Soosung Engineering Co., LTD	Strong evidence	Seoul, South KoreaHQ checked Nov 6, 2026	1,001-5,000	45 contacts →
	Strong evidence “SOOSUNG is an ENR Listed (Top 225 International Design Consulting Firm) Multi-disciplinary Engineering Consulting firm in the field of Civil Infrastructure for Sustainable and…” Source: RevenueBase Database · checked Nov 6, 2026
17	Yokogawa Korea	Indirect evidence	서울특별시, South KoreaHQ checked Nov 6, 2026	201-500	41 contacts →
	Indirect evidence “Yokogawa is a leading provider of Industrial Automation and Test and Measurement solutions.” Source: RevenueBase Database · checked Nov 6, 2026
18	KCIM	Indirect evidence	강남구, South KoreaHQ checked Nov 6, 2026	51-200	34 contacts →
	Indirect evidence “KCIM has been strategizing and developing the implementation of versatile BIM Services Korea to our clients for the last 31 years.” Source: RevenueBase Database · checked Nov 6, 2026
19	T Square LAB	Strong evidence	Seoul, South KoreaHQ checked Nov 6, 2026	51-200	31 contacts →
	Strong evidence “Providing engineering service for the international automotive in Korea & Japan since 2010.” Source: RevenueBase Database · checked Nov 6, 2026
20	TAE Sung S&e Inc.	Indirect evidence	Seoul, South KoreaHQ checked Nov 6, 2026	51-200	31 contacts →
	Indirect evidence “The goal of Tae Sung S&E(TSNE, in short) is the “One Stop Total CAE Solution Provider(OSTS)” both in domestic and global market.” Source: RevenueBase Database · checked Nov 6, 2026
21	Hyundai E&c	Indirect evidence	Jongno, South KoreaHQ checked Nov 6, 2026	1-10	30 contacts →
	Indirect evidence Source: RevenueBase Database · checked Nov 6, 2026
22	Systra Korea	Strong evidence	Seoul, South KoreaHQ checked Nov 6, 2026	51-200	25 contacts →
	Strong evidence “SYSTRA Korea is the Korean subsidiary of SYSTRA Group, the worldwide leading firm in engineering and consulting of CW, Railway, Subway, and Urban Transport.” Source: RevenueBase Database · checked Nov 6, 2026
23	Dspace Korea	Indirect evidence	서울, South KoreaHQ checked Nov 6, 2026	11-50	24 contacts →
	Indirect evidence “dSPACE dSPACE.” Source: RevenueBase Database · checked Nov 6, 2026
24	Welcron Kangwon	Indirect evidence	Hwaseong-si, South KoreaHQ checked Nov 6, 2026	51-200	16 contacts →
	Indirect evidence “Welcron Kangwon is one of the world best industrial boiler package provider.” Source: RevenueBase Database · checked Nov 6, 2026
25	Gmodis	Strong evidence	Seoul, South KoreaHQ checked Nov 6, 2026	11-50	13 contacts →
	Strong evidence “Our mission is to deliver innovative, client-focused solutions that address both legal and engineering challenges, ensuring seamless project success.” Source: RevenueBase Database · checked Nov 6, 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: engineering companies. 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 engineering companies.
Partial evidence: Its own public description names part of engineering companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name engineering companies. 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 177 engineering companies based in South Korea

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Engineering companies based in South Korea at a glance

As of Nov 6, 2026

3.4%Verified-email coverage

272.0Average contacts per company

51-200Median size (employees)

31.6%Largest-city concentration · Seoul

Nov 6, 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 177 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 engineering companies, 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 “engineering companies”. 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 engineering companies), 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 engineering companies, 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, 1,653 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 November 6, 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.

Engineering companies by metro

Engineering companies in Seoul56

Frequently asked

How many engineering companies are based in South Korea?

The directory lists 177 engineering companies based in South Korea as of November 2026.

What services do engineering companies provide?

Engineering companies provide services such as design, consulting, testing, project management, and technical support across disciplines and industries.

How can I find contacts at engineering companies?

This directory includes 48,143 contacts and 1,653 email addresses associated with engineering companies.

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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.