The details on 509 Siteworx LLC
- WA L&I registration
- 509SISL753LO
- Registration checked
- September 7, 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
- Phillips, Mathew E · since 2025
- Registered principal
- Hendrickson, Robert John · 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Something here wrong or out of date?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
Does 509 Siteworx LLC hold a Washington contractor registration?
Yes — 509 Siteworx LLC holds Washington State (L&I) contractor registration 509SISL753LO, expiring June 2027. We checked it against the state record on September 7, 2026; the same lookup takes you about a minute if you want to see it yourself. The same record shows 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 them to send the bond and insurance certificates over before the first day on site.
Does 509 Siteworx LLC cover my part of Spokane?
Deer Park is what they cover. A crew close to you is the one that comes back for a warranty call, so it is worth asking how far out they really travel.
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. The registration gets checked against the state's record and the date sits on this page, so you can judge how current it is.