The details on Industrial Support Service LLC
- WA L&I registration
- INDUSSS9031A
- Registration checked
- September 14, 2026
- Registered since
- 2010
- Expires
- April 2028
- Contractor bond
- $4,000 · American States Insurance Co
- Primary trade
- Electrical
- L&I specialty
- GENERAL
- Registered principal
- SCHMIDLKOFER, JOHN E · since 2010
- Registered principal
- SCHMIDLKOFER, JEFFERI L · since 2010
- Service area
- Deer Park
- Phone
- (509) 276-5131
- Website
- industrialsupportservice.com
Something here wrong or out of date? The business can claim this listing and correct it.
Questions worth asking Industrial Support Service LLC
Does Industrial Support Service LLC hold a Washington contractor registration?
The number you want is INDUSSS9031A — Industrial Support Service LLC's Washington State L&I contractor registration, expiring April 2028. Last checked September 14, 2026. Washington's contractor lookup is free and open if you want to confirm it today. On file alongside it: a $4,000 contractor bond (American States Insurance Co). Ask for proof of bond and current insurance before work starts.
Where does Industrial Support Service LLC work?
They list Deer Park. Confirm your address is inside that when you ring — coverage moves around, especially in winter.
How does a business get listed on this site?
Licensed, and working in Deer Park. That is the bar for a page on this site, and Industrial Support Service LLC clears it. That registration is checked against Washington's record, and the date of the check is on this page for you to weigh. Industrial Support Service LLC rates 5.0 out of 5 on Google across 4 reviews, and this page links straight to those reviews so you can read them for yourself.