We already measure how few titles fill half of a country’s Korean chart. This is the same ruler pointed the other way: how few companies fill half of what charts.
How many companies does it take to account for half the Korean series that chart?
How this is counted. A company “covers” a series if Wikidata lists it as producer, first broadcaster or distributor. Titles are counted as a set, so a series credited to several companies is still one series.
| Credit counted | Companies | Series they cover | Companies for half | Those companies, alphabetically |
|---|---|---|---|---|
| Any credit | 131 | 345 (92.2%) | 3 | JTBC, SBS, tvN |
| Production company | 101 | 156 (41.7%) | 5 | Kakao Entertainment, SLL, Studio Dragon, Studio N, Studio S |
| First broadcaster | 28 | 303 (81%) | 3 | JTBC, SBS, tvN |
| Distributor | 25 | 139 (37.2%) | 4 | CJ ENM Entertainment Division, JTBC, SLL, tvN |
The names are in alphabetical order, not in size order. This page does not rank companies and the table cannot be read as a league. It answers one question — how few it takes.
A network airs everything it airs, so counting first-broadcaster credits will always look concentrated — 28 broadcasters cover 303 series between them. That is why the row to read is Production company: counting only companies Wikidata lists as having made the series, 5 of 101 still account for half.
⚠ That row rests on a thinner base — production credits are attached to 156 series, 41.7% of the 374 that charted. It is the most meaningful cut and the least complete one, and both of those are true at once.
| Series credited to the company | Companies |
|---|---|
| 1 series | 59 |
| 2–4 | 52 |
| 5 or more | 20 |
The long tail is real: 59 of 131 companies appear on exactly one charting series. Concentration at the top and a crowd at the bottom are the same fact seen from two ends.
Companies are attached to 92% of series but only 44.5% of films, and measuring concentration on a half-empty list makes the missing companies look small rather than missing. Films are left out rather than half-counted.
Films are 568 of the titles we hold and only 253 carry a company at all — 44.5%, against 92.2% for series. Fixing that needs a source Wikidata does not have.
Across 93 markets, the median country fills half its Korean chart places with 20 titles; the United States needs 7 and Vietnam 52. ⚠ Those count titles and this page counts companies, so the two numbers are not comparable and we are not comparing them. They are placed side by side because both ends of the same pipe turn out to be narrow. The market side →
Of 131 companies credited on the 345 Korean series that reached a Netflix country top 10, three account for half. Counting production credits alone — the answer to the obvious objection — it is 5 of 101, on a thinner base of 156 series.
9 August 2026
Four countries, one identical decline: new group debuts look 69% down since 2017 in Korea, and just as far down in Japan, America and Britain. What we had measured was not the industry but how fast Wikidata records a new group.
8 August 2026
All markets side by side · Where Korean titles gained and lost · How we count