Trefethen & CO LLC
ActiveInst Equip/Stat Furn/Lab T/Lo · Seattle, WA
License #TREFECL742MP
Claim your free listing
Confirm you're the owner of Trefethen & CO LLC and take control of this listing. Claiming is free.
What claiming gets you
- Edit your business profile
- Add your services, hours, and website
- Take booking requests through Subser
Your page stays built on WA L&I public records — claiming adds your information alongside them.
How we verify it's you
- We'll text a one-time code to (206) 447-1770 — the number on file with WA L&I.
- No access to that number? Verify with your business website or a document instead — we review those manually and email you, usually within a couple of business days.
You'll finish verification on the Subser platform.