신이건설주식회사 / sine

Also known as 신이건설
신이건설주식회사 (sine) is a Korea-based business registered at 서울특별시 서초구 서초대로33길 5, (Postal code: 06588). It operates as a head office of a for-profit corporation. It was originally registered with the Seongnam Tax Office and incorporated at the Suwon District Court, Seongnam Branch. 신이건설주식회사 (sine) falls under the Construction industry. It operates within the Specialty Infrastructure Works sector, specifically focusing on Underwater construction business activities. It has 10–19 employees. According to KOBDi Industry Ranking system, 신이건설주식회사 (sine) scored 53.63 points (down 2.16 points since August 2026) and outperforms approximately 84% of companies in the same industry. Recent performance indicators include: Employee growth: 36.23% (industry average: -3.15%).
신이건설주식회사는 서울특별시 서초구에 있는 수중 공사업 기업입니다.
129-**-*129* 1311**-0094***

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서울특별시 서초구 서초대로33길 5, (06588)
Head office of a for-profit corporation
Construction > Specialty Infrastructure Works > Underwater construction
September 2026
36.23%
2025-2026
2.71%
53.63
▼ 2.16 pts (vs. August 2026)
Top 16%
September 2026

sine's KOBDi Score is 53.63 as of Sep 2026, up 2.68 points since Apr 2025; it rose in 7 and fell in 2 of the 12 monthly updates. As of Sep 2026 it is ahead of about 84% of companies in its industry, against 85% in Aug 2026 and 77% in Apr 2025. Its strongest position was 85% (Aug 2026) and its weakest 75% (May 2025).

A year earlier, in Aug 2025, its score was 51.29 and it was ahead of about 79% of companies in its industry.

Sep 202653.63ahead of 84%
Aug 202655.79ahead of 85%
Jul 202655.79ahead of 85%
Jun 202655.63ahead of 85%
May 202654.81ahead of 85%
Apr 202653.88ahead of 84%
Mar 202652.61ahead of 83%
Feb 202651.29ahead of 81%
Dec 202551.29ahead of 80%
Aug 202551.29ahead of 79%
Jul 202549.74ahead of 76%
May 202549.58ahead of 75%
Apr 202550.95ahead of 77%

Between 2025 and 2026, the headcount of sine changed by +36.23%, against an average of -3.15% in its industry. It now has 10–19 employees.

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(주)천년이엔씨
CHUNYEON ENC CO.,LTD		 10–19 Top 16%
가나기술산업(주) 10–19 Top 17%
해덕주식회사
haeduk		 10–19 Top 16%
주식회사 란트코리아
Land Korea Co., Ltd.		 10–19 Top 16%
예송종합조경 5–9 Top 17%















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서울특별시 서초구 서초대로33길 5, (06588)
Where is sine located?

sine is registered at 서울특별시 서초구 서초대로33길 5,, South Korea (postal code 06588).

What industry is sine in?

sine belongs to Construction › Specialty Infrastructure Works › Underwater construction.

How many employees does sine have?

sine has 10–19 employees.

What is sine's KOBDi Score?

53.63 as of September 2026, ahead of about 84% of companies in its industry.

Who are sine's competitors?

Similar companies include CHUNYEON ENC, 가나기술산업 and haeduk.

Which businesses are near sine?

Businesses registered at the same postal code (06588) include bokwang, 엠에스지베이스먼트 and JOOYONMEDIA. Most work in tax business (bookkeeper), tax business and application software development and supply.

Businesses near sine

Registered at postal code 06588 (서초대로33길, 서초구). Most businesses here work in tax business (bookkeeper), tax business and application software development and supply.

Other underwater construction companies in 서울특별시

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