FilingsTodayOperating margin ranking (listed companies with ₩100B+ revenue)
Listed Korean companies ranked by operating profit as a share of revenue in their latest fiscal year, among companies with at least ₩100 billion of revenue.
At a glance
1,376 companies have a value for this ranking. Woori Technology Investment is first at 84.8%, followed by SHIFT UP Corporation. (61.6%) and Hpsp (52%).
The 10th company, HANMI Semiconductor, is at 43.6%, and the 100th, Samyang Comtech, at 17.2%.
Of the 100 companies listed below, 37 are on KOSPI and 63 on KOSDAQ.
Top 100
| Rank · Company | Operating margin |
|---|---|
| 1 Woori Technology Investment KOSDAQ · 2025 revenue ₩163B | 84.8% |
| 2 SHIFT UP Corporation. KOSPI · 2025 revenue ₩295B | 61.6% |
| 3 Hpsp KOSDAQ · 2025 revenue ₩173B | 52% |
| 4 Classys KOSDAQ · 2025 revenue ₩337B | 50.7% |
| 5 Alteogen KOSDAQ · 2025 revenue ₩216B | 49.5% |
| 6 SK hynix KOSPI · 2025 revenue ₩97.15T | 48.6% |
| 7 LEENO Industrial KOSDAQ · 2025 revenue ₩373B | 47.5% |
| 8 Hugel KOSDAQ · 2025 revenue ₩425B | 47.2% |
| 9 Samsung Biologics KOSPI · 2025 revenue ₩4.56T | 45.4% |
| 10 HANMI Semiconductor KOSPI · 2025 revenue ₩577B | 43.6% |
| 11 EuBiologics KOSDAQ · 2025 revenue ₩149B | 40.7% |
| 12 PharmaResearch KOSDAQ · 2025 revenue ₩536B | 40% |
| 13 Sanil Electric KOSPI · 2025 revenue ₩502B | 35.6% |
| 14 PSK Holdings KOSDAQ · 2025 revenue ₩208B | 35.3% |
| 15 WON Tech KOSDAQ · 2025 revenue ₩157B | 33% |
| 16 Cmtx KOSDAQ · 2025 revenue ₩161B | 32.3% |
| 17 DoubleUGames KOSPI · 2025 revenue ₩720B | 32.2% |
| 18 Myungin Pharm KOSPI · 2025 revenue ₩287B | 32.2% |
| 19 Krafton KOSPI · 2025 revenue ₩3.33T | 31.7% |
| 20 i-Scream Media KOSDAQ · 2025 revenue ₩196B | 31.5% |
| 21 Korea Ratings KOSDAQ · 2025 revenue ₩110B | 31.3% |
| 22 Pharmicell KOSPI · 2025 revenue ₩114B | 30.1% |
| 23 Cheryong Electric KOSDAQ · 2025 revenue ₩224B | 29.9% |
| 24 SK biopharmaceuticals KOSPI · 2025 revenue ₩707B | 28.9% |
| 25 Kona I KOSDAQ · 2025 revenue ₩309B | 28.8% |
| 26 Vitzrocell KOSDAQ · 2025 revenue ₩243B | 28.5% |
| 27 GwangjuShinsegae. KOSPI · 2025 revenue ₩184B | 28.5% |
| 28 Seobu T&D KOSDAQ · 2025 revenue ₩248B | 28.3% |
| 29 Hankook & Company KOSPI · 2025 revenue ₩1.46T | 28.2% |
| 30 T&L KOSDAQ · 2025 revenue ₩164B | 28.2% |
| 31 Celltrion KOSPI · 2025 revenue ₩4.16T | 28.1% |
| 32 Tokai Carbon Korea KOSDAQ · 2025 revenue ₩301B | 27.8% |
| 33 Hy-Lok KOSDAQ · 2025 revenue ₩215B | 27.5% |
| 34 ISC KOSDAQ · 2025 revenue ₩220B | 27.3% |
| 35 Soop KOSDAQ · 2025 revenue ₩467B | 26.8% |
| 36 Humedix KOSDAQ · 2025 revenue ₩170B | 24.9% |
| 37 HD Hyundai Electric KOSPI · 2025 revenue ₩4.08T | 24.4% |
| 38 F&F KOSPI · 2025 revenue ₩1.93T | 24.2% |
| 39 Daehan Shipbuilding KOSPI · 2025 revenue ₩1.23T | 23.9% |
| 40 APR KOSPI · 2025 revenue ₩1.53T | 23.9% |
| 41 Suprema KOSDAQ · 2025 revenue ₩137B | 23.8% |
| 42 F&F Holdings KOSPI · 2025 revenue ₩1.93T | 22.5% |
| 43 Samyang Foods KOSPI · 2025 revenue ₩2.35T | 22.3% |
| 44 Y-Entec KOSDAQ · 2025 revenue ₩117B | 22.3% |
| 45 Hantech KOSDAQ · 2025 revenue ₩172B | 22.2% |
| 46 eSANGNetworks KOSDAQ · 2025 revenue ₩104B | 22.1% |
| 47 Lotte Tour Development KOSPI · 2025 revenue ₩653B | 21.9% |
| 48 Neopharm KOSDAQ · 2025 revenue ₩132B | 21.8% |
| 49 SUN Kwang KOSDAQ · 2025 revenue ₩190B | 21.7% |
| 50 Seoho Electric KOSDAQ · 2025 revenue ₩117B | 21.7% |
| 51 Sunic System KOSDAQ · 2025 revenue ₩516B | 21.6% |
| 52 DIT KOSDAQ · 2025 revenue ₩108B | 21.4% |
| 53 EO Technics KOSDAQ · 2025 revenue ₩381B | 21.2% |
| 54 KakaoBank KOSPI · 2025 revenue ₩3.09T | 21% |
| 55 Metabiomed KOSDAQ · 2025 revenue ₩103B | 20.8% |
| 56 S&S Tech KOSDAQ · 2025 revenue ₩244B | 20.7% |
| 57 Park Systems KOSDAQ · 2025 revenue ₩206B | 20.5% |
| 58 Kt&g KOSPI · 2025 revenue ₩6.58T | 20.4% |
| 59 Solborn KOSDAQ · 2025 revenue ₩121B | 20.4% |
| 60 Protec KOSDAQ · 2025 revenue ₩231B | 20.1% |
| 61 Worldexindustry&trading KOSDAQ · 2025 revenue ₩292B | 20.1% |
| 62 DB HiTek KOSPI · 2025 revenue ₩1.40T | 19.8% |
| 63 Ubiquoss KOSDAQ · 2025 revenue ₩116B | 19.8% |
| 64 Ubiquoss Holdings KOSDAQ · 2025 revenue ₩156B | 19.7% |
| 65 KSS Line KOSPI · 2025 revenue ₩561B | 19.7% |
| 66 Korea Information Certificate Authority, Incorporated KOSDAQ · 2025 revenue ₩138B | 19.5% |
| 67 d'Alba Global KOSPI · 2025 revenue ₩520B | 19.5% |
| 68 Dongaeltek KOSDAQ · 2025 revenue ₩582B | 19.4% |
| 69 PSK KOSDAQ · 2025 revenue ₩457B | 19.4% |
| 70 JVM KOSDAQ · 2025 revenue ₩173B | 19.2% |
| 71 VT KOSDAQ · 2025 revenue ₩437B | 19% |
| 72 JYP Entertainment KOSDAQ · 2025 revenue ₩822B | 18.9% |
| 73 HD-Hyundai Marine Engine KOSPI · 2025 revenue ₩402B | 18.9% |
| 74 Isupetasys KOSPI · 2025 revenue ₩1.09T | 18.8% |
| 75 Global Tax Free KOSDAQ · 2025 revenue ₩154B | 18.8% |
| 76 GnCenergy KOSDAQ · 2025 revenue ₩263B | 18.8% |
| 77 INNOX Advanced Materials KOSDAQ · 2025 revenue ₩440B | 18.6% |
| 78 Anapass KOSDAQ · 2025 revenue ₩108B | 18.6% |
| 79 Dentium KOSPI · 2025 revenue ₩346B | 18.5% |
| 80 Silicon 2 KOSDAQ · 2025 revenue ₩1.12T | 18.4% |
| 81 KoMi KOSDAQ · 2025 revenue ₩604B | 18.4% |
| 82 SNTEnergy KOSPI · 2025 revenue ₩606B | 18.4% |
| 83 Naver KOSPI · 2025 revenue ₩12.04T | 18.3% |
| 84 Hana Materials KOSDAQ · 2025 revenue ₩273B | 18.3% |
| 85 Sejin Heavy Industries KOSPI · 2025 revenue ₩403B | 18.2% |
| 86 Osung Advanced Materials KOSDAQ · 2025 revenue ₩166B | 18.2% |
| 87 Bosung Power Technology KOSDAQ · 2025 revenue ₩147B | 18.2% |
| 88 Boditech Med KOSDAQ · 2025 revenue ₩162B | 17.9% |
| 89 Woowon Development KOSDAQ · 2025 revenue ₩376B | 17.9% |
| 90 Gamsung KOSDAQ · 2025 revenue ₩250B | 17.8% |
| 91 Hankook Cosmetics Manufacturing KOSPI · 2025 revenue ₩185B | 17.8% |
| 92 Coway KOSPI · 2025 revenue ₩4.96T | 17.7% |
| 93 Micro Contact Solution KOSDAQ · 2025 revenue ₩100B | 17.7% |
| 94 Hansol Chemical KOSPI · 2025 revenue ₩884B | 17.7% |
| 95 HD Hyundai Marine Solution KOSPI · 2025 revenue ₩1.98T | 17.7% |
| 96 DUK SAN Neolux KOSDAQ · 2025 revenue ₩344B | 17.6% |
| 97 WONIK Materials KOSDAQ · 2025 revenue ₩322B | 17.5% |
| 98 NICE Information Service KOSPI · 2025 revenue ₩602B | 17.3% |
| 99 JW Holdings KOSPI · 2025 revenue ₩970B | 17.3% |
| 100 Samyang Comtech KOSDAQ · 2025 revenue ₩155B | 17.2% |
How this is calculated
Consolidated figures where available, standalone otherwise. Holding companies sometimes book dividends from subsidiaries or equity-method income as operating revenue, which can make their margin look very high; companies whose operating profit exceeds revenue are left out.
Normal margins differ widely by industry: software, games and biotech tend to be high, retail and construction low.
Source: financial statement data from periodic reports filed with DART. Figures are as filed; this list is not a recommendation to buy or sell any stock.
Other rankings
Average pay · Tenure · Employees · Director pay · Dividend yield · Dividend growth · Revenue growth · Low debt