Registered Washington contractor, based in HENDERSON, CO
DERR & GRUENEWALD CNT CO LLC
Registered in Washington for 11 years
- License number
- DERRGGC852BN
- UBI
- 603410527
- Trade
- Other(all other contractors in Washington)
- L&I license type and specialty
- CONSTRUCTION CONTRACTOR · Steel Erectors
- Business address
- HENDERSON, CO
- Phone
- (303) 287-3456
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
From the state records below; each section shows its source and when it was last synced.
Registration
- Status
- ACTIVE
- Effective date
- January 15, 2015
- Expiration date
- January 18, 2027
Source: L&I Contractor License Data - General, Washington State Department of Labor & Industries. Last synced October 7, 2026.
Bond
Current bond
- Bond company
- Harco National Insurance Co
- Bond number
- DVHNSU0770730
- Amount
- $15,000
- Effective date
- August 7, 2024
- Expiration date
- Until canceled
Bond history
- Bond company
- Harco National Insurance Co
- Bond number
- DVHNSU0770730
- Amount
- $6,000
- Effective date
- August 7, 2020
- Expiration date
- November 12, 2024
- Bond company
- Arch Insurance Co
- Bond number
- su1156071
- Amount
- $6,000
- Effective date
- March 1, 2019
- Expiration date
- Not on record
- Cancellation date
- October 17, 2020
Source: L&I Contractor License Data - Bond, Washington State Department of Labor & Industries. Last synced October 9, 2026.
Liability insurance
Current policy
- Carrier
- Zurich American Ins Co
- Policy number
- GLA681075207
- Coverage amount
- $1,000,000
- Effective date
- October 1, 2025
- Expiration date
- October 1, 2027
- Carrier
- Zurich American Ins Co
- Policy number
- WC681075307
- Coverage amount
- $1,000,000
- Effective date
- October 1, 2025
- Expiration date
- October 1, 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.
- DERR, ROBERT WALKERSince January 15, 2015
- GRUENEWALD, JONATHAN WILLIAMSince January 15, 2015
- GRUENEWALD, WILLIAM CARLSince January 15, 2015
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: DERR GRUENEWALD CNT in HENDERSON. Complaints filed under another name or city are not included.
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
- L&I Contractor License Data - General, Washington State Department of Labor & Industries
- L&I Contractor License Data - Bond, Washington State Department of Labor & Industries
- L&I Contractor License Data - Insurance, Washington State Department of Labor & Industries
- L&I Contractor License - Principal Data, Washington State Department of Labor & Industries
- Attorney General Consumer Complaints, Washington State Attorney General's Office
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 DERRGGC852BN).