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O & S CALIFORNIA, INC.

Private limited company (Ltd.) Active

in

Registration No.
1544454
Incorporation Date
1986-10-17
Company Type
Private limited company (Ltd.)
Address
SAN DIEGO, United States
Website
www.osca-arcosa.com/
Source: California Secretary of State — bizfile Online

O & S CALIFORNIA, INC. is a Private limited company (Ltd.) registered in United States under 1544454, and its current status with California Secretary of State — bizfile Online is active. The company was incorporated on 17 October 1986 and lists its registered address as SAN DIEGO, United States. No shareholders are recorded for O & S CALIFORNIA, INC.; ownership in this jurisdiction is held as the stock ledger under state corporate law (e.g. §219 of the Delaware General Corporation Law), a record kept privately rather than filed publicly. No beneficial owner (UBO) data is recorded for O & S CALIFORNIA, INC.; access to beneficial-ownership data in this jurisdiction is governed by its own register rules. This profile is sourced directly from California Secretary of State — bizfile Online and was last updated on 20 October 2026.

Data Provenance
This record is sourced directly from official government registries, including California Secretary of State — bizfile Online.

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Officers

5

The Director of O & S CALIFORNIA, INC. currently on record is ATSUSHI SHINCHI; five officers are currently on record for O & S CALIFORNIA, INC., filed with California Secretary of State — bizfile Online.

The register reports 11 officers in total, including past appointments, though only the 5 most relevant records are shown here.

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.

AS
ATSUSHI SHINCHI ACTIVE

Residence
🇺🇸 United States
Occupation
Director

KN
KOICHI NAKAMURA ACTIVE

Residence
🇺🇸 United States
Occupation
President

YK
YOSHIYUKI KURODA ACTIVE

Residence
🇺🇸 United States
Occupation
President

KM
KAZUO MURATA ACTIVE

Residence
🇺🇸 United States
Occupation
President

MN
Masashi Numano ACTIVE

Residence
🇺🇸 United States
Occupation
Chief Financial Officer

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Group Structure

O & S CALIFORNIA, INC. sits 1 level below its ultimate parent, ONAMBA CO.,LTD., registered in Japan. The full chain up to ONAMBA CO.,LTD. is derived by walking shareholder filings across jurisdictions; no link in it is independently corroborated by O & S CALIFORNIA, INC.'s own shareholder record.

Ultimate HQ
ONAMBA CO.,LTD.
Japan

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Frequently Asked Questions

Who is O & S CALIFORNIA, INC.'s UBO (Ultimate Beneficial Owner)?

No Ultimate Beneficial Owner (UBO) data is recorded for O & S CALIFORNIA, INC.; access to beneficial-ownership data in this jurisdiction is governed by its own register rules.

What is O & S CALIFORNIA, INC.'s company registration number?

O & S CALIFORNIA, INC.'s registration number is 1544454, filed with California Secretary of State — bizfile Online in United States. Its current status on the register is active.

Is O & S CALIFORNIA, INC. still an active company?

O & S CALIFORNIA, INC.'s status on California Secretary of State — bizfile Online is listed as active.

When was O & S CALIFORNIA, INC. incorporated?

O & S CALIFORNIA, INC. was incorporated on 17 October 1986, according to California Secretary of State — bizfile Online.

What is O & S CALIFORNIA, INC.'s registered address?

The registered address on file for O & S CALIFORNIA, INC. is SAN DIEGO, United States.

What legal structure is O & S CALIFORNIA, INC. registered as?

O & S CALIFORNIA, INC. is registered as a Private limited company (Ltd.) in United States.

Who are the officers/directors of O & S CALIFORNIA, INC.?

The Director of O & S CALIFORNIA, INC. currently on record is ATSUSHI SHINCHI; five officers are currently on record for O & S CALIFORNIA, INC., filed with California Secretary of State — bizfile Online.

Does O & S CALIFORNIA, INC. have a parent company or subsidiaries?

O & S CALIFORNIA, INC. sits 1 level below its ultimate parent, ONAMBA CO.,LTD., registered in Japan.

Can Zavia monitor changes to O & S CALIFORNIA, INC.'s ownership over time?

This profile reflects a point-in-time snapshot from California Secretary of State — bizfile Online. Zavia's monitoring API can track changes to O & S CALIFORNIA, INC.'s registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.

Can I access O & S CALIFORNIA, INC.'s data through an API?

Yes. Zavia's API connects directly to official government ownership registries across 195 countries and territories, including United States, so records like O & S CALIFORNIA, INC.'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 California Secretary of State — bizfile Online and was last synced on 20 October 2026.

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