(주)윤성에스티 / YOONSUNG STEEL AND TECH CO., LTD.

Also known as 윤성에스티 · YOONSUNG STEEL AND TECH
(주)윤성에스티 (YOONSUNG STEEL AND TECH CO., LTD.) is a Korea-based business registered at 서울 영등포구 선유로 (Postal code: 07288). It operates as a head office of a for-profit corporation. It was originally registered with the Yeongdeungpo Tax Office and incorporated at the Seoul Central District Court, Registry Bureau. (주)윤성에스티 (YOONSUNG STEEL AND TECH CO., LTD.) falls under the Manufacturing industry. It operates within the Other Primary Metals sector, specifically focusing on Other primary steel manufacturing industries business activities. It has 1–4 employees. According to KOBDi Industry Ranking system, (주)윤성에스티 (YOONSUNG STEEL AND TECH CO., LTD.) scored 45.08 points (up 0.13 points since August 2026) and outperforms approximately 35% of companies in the same industry. Recent performance indicators include: Employee growth: -17.78% (industry average: -4.74%).
(주)윤성에스티는 서울 영등포구에 있는 그 외 기타 1차 철강 제조업 기업입니다.
107-**-*768* 1101**-2358***

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서울 영등포구 선유로 (07288)
Head office of a for-profit corporation
Manufacturing > Other Primary Metals > Other primary steel manufacturing industries
September 2026
-17.78%
2025-2026
-28.13%
45.08
▲ 0.13 pts (vs. August 2026)
Top 66%
September 2026

YOONSUNG STEEL AND TECH CO., LTD.'s KOBDi Score is 45.08 as of Sep 2026, down 1.99 points since Apr 2025; it rose in 3 and fell in 1 of the 12 monthly updates. As of Sep 2026 it is ahead of about 35% of companies in its industry, against 35% in Aug 2026 and 31% in Apr 2025. Its strongest position was 38% (Mar 2026) and its weakest 31% (Apr 2025).

A year earlier, in Aug 2025, its score was 47.07 and it was ahead of about 35% of companies in its industry.

Sep 202645.08ahead of 35%
Aug 202644.94ahead of 35%
Jul 202644.94ahead of 34%
Jun 202644.94ahead of 34%
May 202644.94ahead of 33%
Apr 202644.94ahead of 33%
Mar 202647.30ahead of 38%
Feb 202647.23ahead of 37%
Dec 202547.23ahead of 36%
Aug 202547.07ahead of 35%
Jul 202547.06ahead of 32%
May 202547.06ahead of 32%
Apr 202547.06ahead of 31%

Between 2025 and 2026, the headcount of YOONSUNG STEEL AND TECH CO., LTD. changed by -17.78%, against an average of -4.74% in its industry. It now has 1–4 employees.

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(주)대성에스앤엠다대공장1–4Top 66%
무한산업(주)1–4Top 65%
주식회사 대현정공
DAEHYUNJUNGONG		5–9Top 65%
동일1–4Top 66%
주식회사 정스틸5–9Top 65%














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서울 영등포구 선유로 (07288)
Where is YOONSUNG STEEL AND TECH CO., LTD. located?

YOONSUNG STEEL AND TECH CO., LTD. is registered at 서울 영등포구 선유로, South Korea (postal code 07288).

What industry is YOONSUNG STEEL AND TECH CO., LTD. in?

YOONSUNG STEEL AND TECH CO., LTD. belongs to Manufacturing › Other Primary Metals › Other primary steel manufacturing industries.

How many employees does YOONSUNG STEEL AND TECH CO., LTD. have?

YOONSUNG STEEL AND TECH CO., LTD. has 1–4 employees.

What is YOONSUNG STEEL AND TECH CO., LTD.'s KOBDi Score?

45.08 as of September 2026, ahead of about 35% of companies in its industry.

Who are YOONSUNG STEEL AND TECH CO., LTD.'s competitors?

Similar companies include 대성에스앤엠다대공장, 무한산업 and DAEHYUNJUNGONG.

Which businesses are near YOONSUNG STEEL AND TECH CO., LTD.?

Businesses registered at the same postal code (07288) include 거성전기, 공감플라테크 and 대지가스상사. Most work in other processing machine tool manufacturing, other general purpose machinery manufacturing and Korean general restaurant business.

Businesses near YOONSUNG STEEL AND TECH CO., LTD.

Registered at postal code 07288 (선유로, 영등포구). Most businesses here work in other processing machine tool manufacturing, other general purpose machinery manufacturing and Korean general restaurant business.

Other other primary steel manufacturing industries companies in 서울

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