Registered Washington contractor, based in HENDERSON, CO
DERR AND GRUENEWALD CONST CO
First registered in Washington on February 11, 2014
- License number
- DERRGGC862CJ
- UBI
- 603372816
- 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: No Attorney General complaint records found
- Review: Registration is not currently active
- Review: Registration appears to be expired
From the state records below; each section shows its source and when it was last synced.
Registration
- Status
- EXPIRED
- Effective date
- February 11, 2014
- Expiration date
- April 20, 2022
- Suspension date
- October 1, 2020
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 EXPIRED status.
Source: L&I Contractor License Data - Bond, Washington State Department of Labor & Industries. Last synced October 10, 2026.
Liability insurance
L&I does not publish liability insurance records for contractors with EXPIRED status.
Source: L&I Contractor License Data - Insurance, Washington State Department of Labor & Industries. Last synced October 10, 2026.
People
Principals L&I lists for this license.
- CORPORATION SERVICE COSince February 11, 2014
- GRUENEWALD, JONATHAN WILLIAMSince February 11, 2014
- GRUENEWALD, WILLIAM CARLSince February 11, 2014
- DERR, ROBERT WALKERSince February 25, 2014
Source: L&I Contractor License - Principal Data, Washington State Department of Labor & Industries. Last synced October 10, 2026.
Attorney General complaints
No Attorney General complaint records found.
Matched on business name and city: DERR GRUENEWALD CONST 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 10, 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 DERRGGC862CJ).