BYC Co., Ltd.
BYC Co., Ltd. is a Private limited company (Ltd.) registered in South Korea under 1188103063, and its current status with Supreme Court Internet Registry (IROS) is active. Its registered address on file is Seoul, South Korea. 5 shareholders are on record for BYC Co., Ltd., and since every one of them is a company rather than an individual, this particular filing does not on its own establish an ultimate beneficial owner (UBO) — identifying one would mean tracing the ownership of each shareholding company in turn. This profile is sourced directly from Supreme Court Internet Registry (IROS) and was last updated on 25 September 2026.
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Shareholders
5
Shareholders of BYC Co., Ltd.
Five shareholders are currently on record for BYC Co., Ltd., filed with Supreme Court Internet Registry (IROS). The largest of these is DFA Emerging Markets Small Cap Series, holding 34% — the largest recorded stake — followed by DFA Investment Dimensions-DFA Emerging Mkts Value at 25.4%; the remaining 3 shareholders shown hold smaller stakes. Because every shareholder shown is a company rather than an individual, the ownership chain continues above this level, and no beneficial owner can be established from this filing alone.
Data availability
The register reports 10 shareholders in total, though only the top 5 by holding are shown in this view.
| Shareholder | Type | Holding | Source Document |
|---|---|---|---|
| DFA Emerging Markets Small Cap Series | 34% | Supreme Court Internet Registry (IROS) | |
| DFA Investment Dimensions-DFA Emerging Mkts Value | 25.4% | Supreme Court Internet Registry (IROS) | |
| DFA Investment Dimensions-Emerging Markets Social Core Equity | 4.7% | Supreme Court Internet Registry (IROS) | |
| Dimensional ETF Tr-Dimensional World ex U.S. Core Equity 2 ETF | 3.8% | Supreme Court Internet Registry (IROS) | |
| DFA Investment Dimensions-World Ex U.S. Core Equity Port | 1.7% | Supreme Court Internet Registry (IROS) |
Officers
1
Directors and officers of BYC Co., Ltd.
One officer is currently on record for BYC Co., Ltd., filed with Supreme Court Internet Registry (IROS). Yoon Sung High serves as Chief Executive Officer. Management authority at BYC Co., Ltd. sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control. The source filing doesn't specify representation authority — whether officers can act individually or must sign jointly to bind the company — so that detail isn't available here.
Group Structure
Group structure of BYC Co., Ltd.
BYC Co., Ltd. has no recorded parent company — it sits at the top of its own group structure, with 1 subsidiary recorded beneath it across 1 jurisdiction. Each of these downward relationships is derived rather than filed: resolved by matching entities across the registry network, not stated directly in a single document.
- Bycom Advertising Co.,Ltd. (South Korea)
Data availability
Those 1 subsidiary spans South Korea jurisdiction, though this list should not be read as complete — subsidiaries only become visible here where shareholder data has actually been filed with a register, so holdings in jurisdictions without that filing simply won't appear.
BYC Co., Ltd.
South Korea
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Frequently Asked Questions
Who owns BYC Co., Ltd.?
Five shareholders are currently on record for BYC Co., Ltd., filed with Supreme Court Internet Registry (IROS). The largest of these is DFA Emerging Markets Small Cap Series, holding 34% — the largest recorded stake — followed by DFA Investment Dimensions-DFA Emerging Mkts Value at 25.4%; the remaining 3 shareholders shown hold smaller stakes. Because every shareholder shown is a company rather than an individual, the ownership chain continues above this level, and no beneficial owner can be established from this filing alone.
Who is BYC Co., Ltd.'s UBO (Ultimate Beneficial Owner)?
Every shareholder recorded for BYC Co., Ltd. is itself a company rather than a natural person, so no Ultimate Beneficial Owner (UBO) is identified at this level; establishing one would require tracing the ownership of each shareholding company in turn.
How many shareholders does BYC Co., Ltd. have on record?
5 shareholders are shown on record for BYC Co., Ltd.. The register reports 10 in total; only the top 5 by holding are shown here.
What is BYC Co., Ltd.'s company registration number?
BYC Co., Ltd.'s registration number is 1188103063, filed with Supreme Court Internet Registry (IROS) in South Korea. Its current status on the register is active.
Is BYC Co., Ltd. still an active company?
BYC Co., Ltd.'s status on Supreme Court Internet Registry (IROS) is listed as active.
What is BYC Co., Ltd.'s registered address?
The registered address on file for BYC Co., Ltd. is Seoul, South Korea.
What legal structure is BYC Co., Ltd. registered as?
BYC Co., Ltd. is registered as a Private limited company (Ltd.) in South Korea.
Who are the officers/directors of BYC Co., Ltd.?
One officer is currently on record for BYC Co., Ltd., filed with Supreme Court Internet Registry (IROS). Yoon Sung High serves as Chief Executive Officer. Management authority at BYC Co., Ltd. sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does BYC Co., Ltd. have a parent company or subsidiaries?
BYC Co., Ltd. has no recorded parent company — it sits at the top of its own group structure, with 1 subsidiary recorded beneath it across 1 jurisdiction. Those 1 subsidiary spans South Korea jurisdiction, though this list should not be read as complete — subsidiaries only become visible here where shareholder data has actually been filed with a register, so holdings in jurisdictions without that filing simply won't appear.
Can Zavia monitor changes to BYC Co., Ltd.'s ownership over time?
This profile reflects a point-in-time snapshot from Supreme Court Internet Registry (IROS). Zavia's monitoring API can track changes to BYC Co., Ltd.'s registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.
Can I access BYC Co., Ltd.'s data through an API?
Yes. Zavia's API connects directly to official government ownership registries across 195 countries and territories, including South Korea, so records like BYC Co., Ltd.'s registration, shareholder, UBO, and group-structure data can be queried programmatically instead of viewed one page at a time.
Where does this company information come from, and how current is it?
This record is sourced directly from Supreme Court Internet Registry (IROS) and was last synced on 25 September 2026.