세정토건(주) / SEJUNG

Also known as 세정토건
세정토건(주) (SEJUNG) is a Korea-based business registered at 서울특별시 성북구 화랑로15길 (Postal code: 02736). It operates as a head office of a for-profit corporation. It was originally registered with the Cheonan Tax Office and incorporated at the Daejeon District Court, Asan Registry. 세정토건(주) (SEJUNG) falls under the Construction industry. It operates within the Civil Engineering & Infrastructure sector, specifically focusing on Other civil engineering facility construction industry business activities. It has 10–19 employees. According to KOBDi Industry Ranking system, 세정토건(주) (SEJUNG) scored 57.29 points (down 0.84 points since August 2026) and outperforms approximately 80% of companies in the same industry. Recent performance indicators include: Employee growth: -2.73% (industry average: -5.31%).
세정토건(주)는 서울특별시 성북구에 있는 기타 토목 시설물 건설업 기업입니다.
312-**-*583* 1648**-0018***

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서울특별시 성북구 화랑로15길 (02736)
Head office of a for-profit corporation
Construction > Civil Engineering & Infrastructure > Other civil engineering facility construction industry
September 2026
-2.73%
2025-2026
-26.09%
57.29
▼ 0.84 pts (vs. August 2026)
Top 20%
September 2026

SEJUNG's KOBDi Score is 57.29 as of Sep 2026, up 0.04 points since Apr 2025; it rose in 5 and fell in 6 of the 12 monthly updates. As of Sep 2026 it is ahead of about 80% of companies in its industry, against 81% in Aug 2026 and 77% in Apr 2025. Its strongest position was 81% (Aug 2026) and its weakest 77% (Apr 2025).

A year earlier, in Aug 2025, its score was 58.05 and it was ahead of about 80% of companies in its industry.

Sep 202657.29ahead of 80%
Aug 202658.12ahead of 81%
Jul 202657.29ahead of 80%
Jun 202656.41ahead of 79%
May 202657.42ahead of 80%
Apr 202656.53ahead of 78%
Mar 202657.46ahead of 79%
Feb 202656.50ahead of 78%
Dec 202557.24ahead of 78%
Aug 202558.05ahead of 80%
Jul 202557.22ahead of 78%
May 202557.22ahead of 78%
Apr 202557.25ahead of 77%

Between 2025 and 2026, the headcount of SEJUNG changed by -2.73%, against an average of -5.31% in its industry. It now has 10–19 employees.

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범아건설(주)
Beoma Construction Co.Ltd		 10–19 Top 20%
주식회사 무진종합건설
MUJIN CONSTRUCTION CO.,LTD		 10–19 Top 20%
제이엠건설 주식회사
제이엠건설(주)		 10–19 Top 20%
진흥종합건설주식회사
JIN HUNG CONSTRUCTION CO., LTD.		 10–19 Top 20%
(주)아산환경
.		 10–19 Top 21%















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서울특별시 성북구 화랑로15길 (02736)
Where is SEJUNG located?

SEJUNG is registered at 서울특별시 성북구 화랑로15길, South Korea (postal code 02736).

What industry is SEJUNG in?

SEJUNG belongs to Construction › Civil Engineering & Infrastructure › Other civil engineering facility construction industry.

How many employees does SEJUNG have?

SEJUNG has 10–19 employees.

What is SEJUNG's KOBDi Score?

57.29 as of September 2026, ahead of about 80% of companies in its industry.

Who are SEJUNG's competitors?

Similar companies include Beoma Construction, MUJIN CONSTRUCTION and 제이엠건설(주).

Which businesses are near SEJUNG?

Businesses registered at the same postal code (02736) include 준, 카페마실 and 비에이치씨 월곡점. Most work in Korean general restaurant business, coffee shop and other non-residential welfare service businesses.

Businesses near SEJUNG

Registered at postal code 02736 (화랑로15길, 성북구). Most businesses here work in Korean general restaurant business, coffee shop and other non-residential welfare service businesses.

Other other civil engineering facility construction industry companies in 서울특별시

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