Architecture and engineering
21 companies listed in Korea file under this classification. Figures below are each company's most recent filed year, mostly 2025.
Companies21
Combined revenueKRW 17,778bn
Median revenueKRW 386bn
Largest company's share50.8%
We show the median rather than the average because one company often carries a whole classification. The largest firm's share of combined revenue is there so you can see when that is happening.
All companies, by name
Listed alphabetically, not ranked. We do not order companies by size or call any of them leading, major or top.
| Company | Market | Year | Revenue | Operating profit | Net profit |
|---|---|---|---|---|---|
| APTN Inc.270520 | KOSDAQ | 2025 | 17 | — | -23 |
| DOHWA ENGINEERING Co., Ltd.002150 | KOSPI | 2025 | 698 | 30 | 6 |
| Dt&C Co., Ltd.187220 | KOSDAQ | 2025 | 126 | -1 | -1 |
| Dx & Vx Co., Ltd.180400 | KOSDAQ | 2025 | 29 | -24 | -30 |
| HanmiGlobal Co., Ltd.053690 | KOSPI | 2025 | 449 | 31 | 20 |
| HANSUNG CLEANTECH CO., LTD.066980 | KOSDAQ | 2025 | 200 | 3 | 1 |
| HANYANG ENG CO.,LTD045100 | KOSDAQ | 2025 | 1,118 | 54 | 42 |
| HCT CO., LTD.072990 | KOSDAQ | 2025 | 108 | 8 | 5 |
| HD Hyundai Marine Solution Co., Ltd443060 | KOSPI | 2025 | 1,983 | 350 | 270 |
| Heerim Architects & Planners037440 | KOSDAQ | 2025 | 232 | 9 | 8 |
| JEIO Co., Ltd.418550 | KOSDAQ | 2025 | 55 | -4 | -7 |
| KEPCO Engineering & Construction Company, Inc052690 | KOSPI | 2025 | 519 | 35 | 85 |
| Korea Electronic Power Industrial Development Co., Ltd130660 | KOSPI | 2025 | 395 | 7 | 4 |
| Korea Engineering Consultants Corp.023350 | KOSPI | 2025 | 413 | 6 | 9 |
| Orbitech Co., Ltd.046120 | KOSDAQ | 2025 | 58 | -14 | 1 |
| POSCO DX COMPANY LTD.022100 | KOSPI | 2025 | 1,075 | 60 | 53 |
| SAMSUNG E&A CO.,LTD028050 | KOSPI | 2025 | 9,029 | 792 | 648 |
| SemiFive Inc.490470 | KOSDAQ | 2025 | 121 | -53 | -56 |
| SUNGDO Engineering & Construction.037350 | KOSDAQ | 2025 | 743 | 58 | 28 |
| Yooshin Engineering Corporation054930 | KOSDAQ | 2025 | 386 | 9 | 11 |
| ZGOO Holdings Co., Ltd.221800 | KOSDAQ | 2025 | 26 | -2 | -2 |