ContractorHistory

Registered Washington contractor, based in HILLSBORO, OR

MSI MECH SYSTEMS INC

First registered in Washington on November 13, 2024

License number
MSIMEMS765QM
UBI
601294486
Trade
Plumbing(all plumbing contractors in Washington)
L&I license type and specialty
PLUMBING CONTRACTOR · JOURNEY LEVEL
Business address
HILLSBORO, OR
Phone
(503) 466-2222

Current verification

  • Found: No Attorney General complaint records found
  • Review: Registration is not currently active
  • Review: A registration suspension is on record
  • Review: 1 other license record under the same UBI

From the state records below; each section shows its source and when it was last synced.

Registration

Status
SUSPENDED
Effective date
November 13, 2024
Expiration date
November 13, 2026
Suspension date
September 30, 2026

Source: L&I Contractor License Data - General, Washington State Department of Labor & Industries. Last synced October 7, 2026.

One other license number is registered under the same UBI, 601294486. A UBI identifies one business with the state; a business may hold more than one license, renew under a new number, or register a new license after an earlier one closed.

  • License MSIMESI099BQ · CONSTRUCTION CONTRACTOR · January 18, 1991 to March 22, 2023

Source: L&I Contractor License Data - General, Washington State Department of Labor & Industries. Last synced October 7, 2026.

Bond

L&I does not publish bond records for contractors with SUSPENDED status.

Source: L&I Contractor License Data - Bond, Washington State Department of Labor & Industries. Last synced October 11, 2026.

Liability insurance

L&I does not publish liability insurance records for contractors with SUSPENDED status.

Source: L&I Contractor License Data - Insurance, Washington State Department of Labor & Industries. Last synced October 11, 2026.

People

Principals L&I lists for this license.

  • KOSTERS, RUSS WSince November 12, 2024
  • TROUT, ROBERT WSince November 12, 2024

Source: L&I Contractor License - Principal Data, Washington State Department of Labor & Industries. Last synced October 11, 2026.

Attorney General complaints

No Attorney General complaint records found.

Matched on business name and city: MSI MECH SYSTEMS in HILLSBORO. Complaints filed under another name or city are not included.

One other registered contractor shares this business name and city: MSI MECH SYSTEMS INC (MSIMESI099BQ, EXPIRED). Complaints are matched by business name and city, so any complaint records shown here also appear on those pages. The records do not say which of these contractors a complaint was about.

A complaint record does not establish that the business violated the law.

Source: Attorney General Consumer Complaints, Washington State Attorney General's Office. Last synced October 11, 2026.

Record history

Changes to this contractor's state records since we began tracking them. The state's current-status tools do not show these.

No changes recorded since our records began on October 6, 2026.

Sources

Record last synced October 7, 2026.

Check this record against the state directly on L&I's Verify a Contractor page (search by license number MSIMEMS765QM).