1ST SECURITY BANK OF WASHINGTON
Registration details
Company overview
1ST SECURITY BANK OF WASHINGTON is a registered legal entity registered in United States under 601128668, and its current status with Washington Secretary of State is active. The company was incorporated on 27 February 1937 and lists its registered address as MOUNTLAKE TER, United States. No shareholders are recorded for 1ST SECURITY BANK OF WASHINGTON; 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 1ST SECURITY BANK OF WASHINGTON; access to beneficial-ownership data in this jurisdiction is governed by its own register rules. This profile is sourced directly from Washington Secretary of State and was last updated on 17 October 2026.
Officers
5
Registry notes and limitations
The Governingperson of 1ST SECURITY BANK OF WASHINGTON currently on record is MATT MULLET; five officers are currently on record for 1ST SECURITY BANK OF WASHINGTON, filed with Washington Secretary of State.
The register reports 8 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.
Group Structure
Fs Bancorp, Inc.
United States
How these relationships were recorded
1ST SECURITY BANK OF WASHINGTON sits 1 level below its ultimate parent, Fs Bancorp, Inc., registered in United States. The full chain up to Fs Bancorp, Inc. is derived by walking shareholder filings across jurisdictions; no link in it is independently corroborated by 1ST SECURITY BANK OF WASHINGTON's own shareholder record.
Frequently asked questions
Who is 1ST SECURITY BANK OF WASHINGTON's UBO (Ultimate Beneficial Owner)?
No Ultimate Beneficial Owner (UBO) data is recorded for 1ST SECURITY BANK OF WASHINGTON; access to beneficial-ownership data in this jurisdiction is governed by its own register rules.
What is 1ST SECURITY BANK OF WASHINGTON's company registration number?
1ST SECURITY BANK OF WASHINGTON's registration number is 601128668, filed with Washington Secretary of State in United States. Its current status on the register is active.
Is 1ST SECURITY BANK OF WASHINGTON still an active company?
1ST SECURITY BANK OF WASHINGTON's status on Washington Secretary of State is listed as active.
When was 1ST SECURITY BANK OF WASHINGTON incorporated?
1ST SECURITY BANK OF WASHINGTON was incorporated on 27 February 1937, according to Washington Secretary of State.
What is 1ST SECURITY BANK OF WASHINGTON's registered address?
The registered address on file for 1ST SECURITY BANK OF WASHINGTON is MOUNTLAKE TER, United States.
Who are the officers/directors of 1ST SECURITY BANK OF WASHINGTON?
The Governingperson of 1ST SECURITY BANK OF WASHINGTON currently on record is MATT MULLET; five officers are currently on record for 1ST SECURITY BANK OF WASHINGTON, filed with Washington Secretary of State.
Does 1ST SECURITY BANK OF WASHINGTON have a parent company or subsidiaries?
1ST SECURITY BANK OF WASHINGTON sits 1 level below its ultimate parent, Fs Bancorp, Inc., registered in United States.
Can Zavia monitor changes to 1ST SECURITY BANK OF WASHINGTON's ownership over time?
This profile reflects a point-in-time snapshot from Washington Secretary of State. Zavia's monitoring API can track changes to 1ST SECURITY BANK OF WASHINGTON's registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.
Can I access 1ST SECURITY BANK OF WASHINGTON'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 1ST SECURITY BANK OF WASHINGTON'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 Washington Secretary of State and was last synced on 17 October 2026.