Seventy-seven companies hold half of Korea's listed-market jobs

Add up the employees that Korean listed companies file to the regulator and you get 1.87 million people, spread across 2,790 firms. But “spread” is the wrong word. The jobs are not spread; they are stacked. A small number of very large companies employ most of the listed market’s workers, and the rest of the list is a long tail of firms with a few hundred people each — or fewer.

Half the jobs, seventy-seven companies

Rank every listed company by headcount and cumulate from the top. The ten largest employers alone hold 22.2% of all listed-market employment. The top fifty hold 43.0%. The top hundred hold 54.6% — more than half the workforce in a hundred names out of nearly three thousand.

Draw the line exactly at half and it falls at 77 companies. That is 2.8% of the firms holding 50% of the jobs. The concentration is steeper than market value alone would suggest, because these are the manufacturers — electronics, autos, displays — that run large domestic payrolls rather than the asset-light or holding structures that dominate parts of the index.

The other end is very flat

The median listed company reports 160 employees. Not 1,600, not 16,000 — 160. Half of all listed companies sit below that line, and taken together that smaller half — roughly 1,395 firms — accounts for just 5.6% of total listed employment. A reader who pictures “a listed company” as a large employer has the wrong picture for all but the top of the table; most listed firms are small, and a meaningful number file only a head-office headcount because they are holding companies whose people sit in subsidiaries.

Who is at the top

The five largest listed employers are Samsung Electronics (128,881), Hyundai Motor (72,598), Kia (36,566), SK hynix (34,549) and LG Electronics (34,144). Below them the list continues through LG Display, E-Mart and Korea Electric Power — a mix of electronics, autos, retail and utilities. It is the familiar shape of the Korean economy: a handful of industrial groups carrying the employment, and everything else much smaller.

What this is, and what it is not

This is a count of disclosed jobs, nothing more. A large workforce is not a virtue and a small one is not a fault; this is not investment advice and says nothing about which companies are efficient, growing or worth owning — a labour-heavy manufacturer and a lean software firm are different businesses, not a better and a worse stock. Two limits are worth keeping in view: headcount is filed as of each company’s own reporting date, and holding companies count only their head office, which flattens the bottom of the table without touching the top. What the numbers show, cleanly, is that Korea’s listed-market employment is concentrated in a way its company count hides — most of the jobs sit in a few dozen large firms, and most of the firms are small.