The details on Centuryone
- WA L&I registration
- CENTU**955JO
- Registration checked
- September 14, 2026
- Registered since
- 2005
- Expires
- May 2028
- Contractor bond
- $30,000 · Nationwide Mutual Ins Co
- Liability insurance
- $1,000,000 · Nautilus Ins Co
- Insurance through
- May 2027
- Primary trade
- General Contractor
- L&I specialty
- Framing and Rough Carpentry
- Registered principal
- MARTYNENKO, VALENTIN V · since 2005
- Service area
- Spokane
Something here wrong or out of date? The business can claim this listing and correct it.
Questions worth asking Centuryone
Is Centuryone a registered contractor?
Yes — Centuryone holds Washington State (L&I) contractor registration CENTU**955JO, expiring May 2028. We checked it against the state record on September 14, 2026; the same lookup takes you about a minute if you want to see it yourself. The same record shows a $30,000 contractor bond (Nationwide Mutual Ins Co) and $1,000,000 of liability insurance with Nautilus Ins Co through May 2027. Ask for proof of bond and current insurance before work starts.
Does Centuryone cover my part of Spokane?
Spokane. Service areas change, so confirm they cover your address when you call.
Why is Centuryone listed here?
Centuryone 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.