What is “KK”?
KK (Joint-stock company) is a public limited liability company used primarily in Japan. It signals limited liability and potential public listing.
Where it's used
KK appears in company names registered in the following jurisdiction:
What it tells you about the company
Equivalent forms around the world
These are the closest structural equivalents to KK in other jurisdictions — same entity category, different national law.
Normalizing “KK” in your data
When matching or deduplicating company records, the legal suffix is noise — “Acme KK” and “Acme” should resolve to the same entity. One API call strips it and returns a stable canonical form:
curl -X POST https://api.ambect.com/v1/normalize/company \
-H "Authorization: Bearer $AMBECT_KEY" \
-H "Content-Type: application/json" \
-d '{"name": "Acme KK", "country": "jp"}'{
"data": {
"canonical": "acme kk",
"legal_type": null,
"tokens": [
"acme",
"kk"
]
},
"meta": {
"pipeline": [
"lowercase",
"legal_suffix"
],
"confidence": 0.99
}
}Frequently asked questions
What does KK mean?
KK means "Joint-stock company".
Is a KK public or private?
A KK is a public entity — it can issue shares that are listed and traded on a stock exchange.
What is the liability in a KK?
Owners of a KK have limited liability. Their personal assets are protected, and their exposure is capped at the amount they invested.
Which countries use KK?
KK is used in Japan.
Need to normalize KK at scale? The Ambect API handles it across 100+ countries in under 5 ms.
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