ContractorHistory

Washington contractor

KNIGHT CONST / SUPPLY INC

Registered in Washington for 54 years

License number
KNIGHCS281ON
UBI
600074664
Trade
General contractor(all general contractor contractors in Washington)
L&I license type and specialty
CONSTRUCTION CONTRACTOR · GENERAL
City
DEER PARK, WA(all contractors in Deer Park)
Phone
(509) 276-2229

Current verification

  • Found: Active Washington contractor registration
  • Found: Current bond record found
  • Found: Current liability insurance record found
  • Found: No Attorney General complaint records found
  • 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
ACTIVE
Effective date
September 15, 1972
Expiration date
August 22, 2028

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

Related licenses

One other license number is registered under the same UBI, 600074664. 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.

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

Bond

Current bond

  • Bond company
    Western Surety Co
    Bond number
    929600330
    Amount
    $30,000
    Effective date
    August 9, 2024
    Expiration date
    Until canceled

Bond history

  • Bond company
    Western Surety Co
    Bond number
    929600330
    Amount
    $12,000
    Effective date
    September 15, 2015
    Expiration date
    August 9, 2024

Source: L&I Contractor License Data - Bond, Washington State Department of Labor & Industries. Last synced October 9, 2026.

Liability insurance

Current policy

  • Carrier
    Cincinnati Ins Co
    Policy number
    ENP0587046
    Coverage amount
    $1,000,000
    Effective date
    August 19, 2021
    Expiration date
    August 19, 2027

L&I publishes only the policy currently on file. Earlier policies are kept from our own nightly syncs, which began October 6, 2026.

Source: L&I Contractor License Data - Insurance, Washington State Department of Labor & Industries. Last synced October 9, 2026.

People

Principals L&I lists for this license.

  • KNIGHT, DOUGLAS JSince September 15, 1972 · Not in L&I records since October 7, 2026.
  • KNIGHT, DOUGLAS JAMESSince September 15, 1972
  • KNIGHT, DAVID ALLENSince January 1, 1980
  • KNIGHT, FERN ELIZABETHSeptember 15, 1972 to July 22, 2016
  • KNIGHT, JAMES DOUGLASSeptember 15, 1972 to August 7, 2020
  • KNIGHT, KENNETH LEESeptember 15, 1972 to August 7, 2020

Source: L&I Contractor License - Principal Data, Washington State Department of Labor & Industries. Last synced October 9, 2026.

Attorney General complaints

No Attorney General complaint records found.

Matched on business name and city: KNIGHT CONST SUPPLY in DEER PARK. Complaints filed under another name or city are not included.

One other registered contractor shares this business name and city: KNIGHT CONST & SUPPLY INC (KNIGHCS233RN, ACTIVE). 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 9, 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 KNIGHCS281ON).