The details on 509 Siteworx LLC
- WA L&I registration
- 509SISL753LO
- Registration checked
- July 27, 2026
- Registered since
- 2025
- Expires
- June 2027
- Contractor bond
- $15,000 · Old Republic Surety Co
- Liability insurance
- $1,000,000 · Country Mutual Ins Co
- Insurance through
- March 2027
- Primary trade
- General Contractor
- L&I specialty
- Excavation, Grading and Land Clearing
- Registered principal
- Hendrickson, Robert John · since 2025
- Registered principal
- Phillips, Mathew E · since 2025
- Service area
- Deer Park
Something here wrong or out of date? The business can claim this listing and correct it.
Questions worth asking 509 Siteworx LLC
Is 509 Siteworx LLC licensed in Washington?
509 Siteworx LLC holds Washington State (L&I) contractor registration 509SISL753LO, expiring June 2027. We verified it against the state record on July 27, 2026, and you can check the same number on Washington's contractor lookup in about a minute. L&I also lists a $15,000 contractor bond (Old Republic Surety Co) and $1,000,000 of liability insurance with Country Mutual Ins Co through March 2027. Ask for proof of bond and current insurance before work starts.
What areas does 509 Siteworx LLC serve?
Deer Park. Service areas change, so confirm they cover your address when you call.
How did 509 Siteworx LLC end up on this page?
509 Siteworx LLC is licensed and working in the Spokane area — that's the whole bar for a page here. We check that registration against the state's own record and date the check on this page, so you can see for yourself how current it is.