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Korean listed companies by average employee tenure

Listed Korean companies ranked by the average length of service in the staff section of their annual report. Tenure reported by division or sex is averaged, weighted by headcount.

At a glance

1,841 companies have a value for this ranking. KG Mobility is first at 25.3 yrs, followed by Yoosung Enterpri (23.8 yrs) and Seoul City GAS (23.5 yrs).

The 10th company, Motonic, is at 19.8 yrs, and the 100th, KPX Chemical, at 15.1 yrs.

Of the 100 companies listed below, 85 are on KOSPI and 15 on KOSDAQ.

Top 100

Rank · CompanyAverage tenure
1 KG Mobility KOSPI · 4,126 staff25.3 yrs
2 Yoosung Enterpri KOSPI · 537 staff23.8 yrs
3 Seoul City GAS KOSPI · 499 staff23.5 yrs
4 SJM KOSPI · 287 staff23.2 yrs
5 SJG Sejong KOSPI · 617 staff22.6 yrs
6 SNT Motiv KOSPI · 536 staff22.2 yrs
7 KIS KOSPI · 299 staff22.2 yrs
8 Daesung Energy KOSPI · 383 staff20.7 yrs
9 Austem KOSDAQ · 293 staff20.2 yrs
10 Motonic KOSPI · 278 staff19.8 yrs
11 Union Materials KOSPI · 242 staff19.4 yrs
12 KT KOSPI · 14,701 staff19.3 yrs
13 Youngbo Chemical KOSPI · 234 staff19.2 yrs
14 Michang OIL IND KOSPI · 84 staff19 yrs
15 Samwonsteel KOSPI · 276 staff19 yrs
16 TBC KOSDAQ · 114 staff19 yrs
17 Daechang Forging KOSPI · 85 staff18.8 yrs
18 PaperCorea KOSPI · 158 staff18.8 yrs
19 SeoSan KOSDAQ · 63 staff18.8 yrs
20 Hanon Systems KOSPI · 2,223 staff18.6 yrs
21 DY Power KOSPI · 363 staff18.6 yrs
22 Ecoplastic KOSDAQ · 625 staff18.5 yrs
23 HL Mando KOSPI · 3,828 staff18.4 yrs
24 Daegu Department Store KOSPI · 127 staff18.4 yrs
25 Korean AIR Lines KOSPI · 18,318 staff18.4 yrs
26 Hite Jinro KOSPI · 2,935 staff18.3 yrs
27 TK Chemical KOSDAQ · 162 staff18.3 yrs
28 Kt&g KOSPI · 4,331 staff18.2 yrs
29 KEC KOSPI · 542 staff18.2 yrs
30 Korea Movenex KOSPI · 500 staff17.9 yrs
31 Hanwha Galleria KOSPI · 761 staff17.8 yrs
32 DongshinEngineering&Construction KOSDAQ · 668 staff17.6 yrs
33 Moorim Paper KOSPI · 447 staff17.5 yrs
34 Sindoh KOSPI · 303 staff17.5 yrs
35 S-Oil KOSPI · 3,537 staff17.4 yrs
36 GwangjuShinsegae. KOSPI · 165 staff17.4 yrs
37 Samsung Life Insurance KOSPI · 5,124 staff17.4 yrs
38 Oriental Precision & Engineering KOSDAQ · 322 staff17.3 yrs
39 Samsung Heavy Industries KOSPI · 10,589 staff17.2 yrs
40 Samsung SDS KOSPI · 11,219 staff17.2 yrs
41 Namsung KOSPI · 60 staff17.2 yrs
42 SAMPYO Cement KOSDAQ · 649 staff17.2 yrs
43 Sangsin Brake KOSPI · 622 staff17.1 yrs
44 HNK Machine Tool KOSDAQ · 234 staff17 yrs
45 Daechang KOSPI · 335 staff17 yrs
46 DRB Industrial KOSPI · 540 staff16.9 yrs
47 Hanwha Life Insurance KOSPI · 2,794 staff16.8 yrs
48 Samchully KOSPI · 881 staff16.8 yrs
49 LOTTE Fine Chemical KOSPI · 943 staff16.8 yrs
50 Posco M-Tech KOSDAQ · 999 staff16.8 yrs
51 UNID btplus KOSPI · 210 staff16.7 yrs
52 DY Deokyang KOSPI · 879 staff16.7 yrs
53 Dgenx KOSDAQ · 152 staff16.6 yrs
54 Moorim P&P KOSPI · 722 staff16.5 yrs
55 Pyung HWA Industrial KOSPI · 833 staff16.5 yrs
56 Bookook Steel KOSPI · 59 staff16.5 yrs
57 Hanilcement KOSPI · 980 staff16.4 yrs
58 TCC Steel KOSPI · 281 staff16.4 yrs
59 Dong SUH Companies KOSPI · 275 staff16.3 yrs
60 Asiana Airlines KOSPI · 7,479 staff16.3 yrs
61 Posco Steeleon KOSPI · 418 staff16.3 yrs
62 Sung Kwang Bend KOSDAQ · 313 staff16.3 yrs
63 MNC Solution KOSPI · 337 staff16.3 yrs
64 Hankuk Paper MFG. KOSPI · 768 staff16.2 yrs
65 GMB Korea KOSPI · 754 staff16.1 yrs
66 LS Electric KOSPI · 3,482 staff16 yrs
67 Samsung Card KOSPI · 2,033 staff16 yrs
68 Dongil Industries KOSPI · 207 staff16 yrs
69 LX Hausys KOSPI · 2,728 staff15.9 yrs
70 Poongsan Holdings KOSPI · 276 staff15.9 yrs
71 Hanwha Ocean KOSPI · 11,178 staff15.9 yrs
72 Samsung Fire & Marine Insurance KOSPI · 5,535 staff15.9 yrs
73 Hankook Shell OIL KOSPI · 119 staff15.8 yrs
74 Songwon Industrial KOSPI · 612 staff15.8 yrs
75 Hyundai Motor KOSPI · 72,598 staff15.8 yrs
76 Samsung Electro-Mechanics KOSPI · 12,173 staff15.8 yrs
77 Mirae Asset Securities KOSPI · 3,310 staff15.7 yrs
78 DYP KOSPI · 571 staff15.7 yrs
79 Shindaeyang Paper KOSPI · 114 staff15.7 yrs
80 Grand Korea Leisure KOSPI · 1,794 staff15.7 yrs
81 SM Bexel KOSPI · 232 staff15.6 yrs
82 Hansol Paper KOSPI · 1,732 staff15.6 yrs
83 Union KOSPI · 221 staff15.6 yrs
84 Daishin Securities KOSPI · 1,432 staff15.6 yrs
85 Dongwha Enterpri KOSDAQ · 632 staff15.6 yrs
86 Industrial Bank of Korea KOSPI · 13,507 staff15.5 yrs
87 Wiscom KOSPI · 228 staff15.5 yrs
88 Posco International KOSPI · 1,738 staff15.4 yrs
89 SNT Dynamics KOSPI · 381 staff15.4 yrs
90 GS Engineering & Construction KOSPI · 4,996 staff15.4 yrs
91 KG Dongbusteel KOSPI · 1,161 staff15.4 yrs
92 Moorim SP KOSDAQ · 216 staff15.3 yrs
93 Sungshin Cement KOSPI · 618 staff15.3 yrs
94 Dae-Il KOSPI · 695 staff15.3 yrs
95 Seoyon E-Hwa KOSPI · 1,068 staff15.3 yrs
96 Hyundaimarine&fireinsurance KOSPI · 3,987 staff15.3 yrs
97 T. K KOSDAQ · 340 staff15.2 yrs
98 Inzi Controls KOSPI · 559 staff15.1 yrs
99 LG H&H KOSPI · 4,013 staff15.1 yrs
100 KPX Chemical KOSPI · 275 staff15.1 yrs

How this is calculated

Values written as "6 years 4 months" are converted to 6.3 years. Some companies carry over service at a predecessor after a merger or spin-off, so the basis differs slightly between companies. Companies with fewer than 50 employees are left out.

Long tenure can mean low turnover, but it can also mean little recent hiring and an older workforce.

Source: 2025 annual business reports filed with DART. Figures are as filed; this list is not a recommendation to buy or sell any stock.

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