EMPIRICAL TAX SERVICES
ActiveBusiness · Seattle / King County, WA
At a glance
Public records place EMPIRICAL TAX SERVICES at 1 active location in 1 Seattle office building. Locations include US Bank Centre (# 3150).
Public record — Seattle / King County
Office locations (1 active)
| Building | Suite / floor | Submarket | Since | Source | Match |
|---|---|---|---|---|---|
| US Bank Centre1420 5TH AVE | # 3150 | Seattle | Apr 2015 | Seattle business licence | address · medium |
Where does EMPIRICAL TAX SERVICES operate in Seattle?
The earliest active record dates from Apr 2015.
Across Seattle, 6,611 active business locations are matched to office buildings; EMPIRICAL TAX SERVICES accounts for 1 of them.
How does BuildingCensus know EMPIRICAL TAX SERVICES is at these addresses?
Each location is a business record whose premises address was matched to a county office parcel (record types on this page: Seattle business licence). The match method and confidence are shown on every row.
A record at an address is evidence that the business operates there, not a lease: records lag moves by months, and businesses without a local record at an address do not appear.
Frequently asked questions
Where are EMPIRICAL TAX SERVICES's offices in Seattle?
Public records place EMPIRICAL TAX SERVICES at 1 active location in Seattle / King County: US Bank Centre (# 3150).
How long has EMPIRICAL TAX SERVICES been at its Seattle locations?
The earliest active record starts Apr 2015. Start dates are when the record was opened, which can trail the actual move-in.
Related
Data provenance — public records only
- Seattle / King County — King County Assessor bulk extracts and Seattle open data. Washington law restricts commercial use of lists of individuals, so this metro is built without personal names by design: the county's name-stripped account file provides mailing addresses (portfolios group by mailing cluster, unnamed), sales show price and date but never buyer or seller, and tenants are business licence trade names.
Every fact on this page is drawn from the government records above — no listing sites, no scraped platforms, no third-party images. Facts from public records are uncopyrightable; each tenancy row carries its source and match confidence. Records can lag reality — a business-tax receipt or registration at an address is evidence of occupancy, not a lease confirmation.
Dataset updated . Locations from Seattle / King County business records matched to county office parcels.
About this data
Source: King County Assessor bulk extracts and Seattle open data (Seattle / King County), as published September 21, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “EMPIRICAL TAX SERVICES — Seattle office locations”, https://buildingcensus.com/offices/seattle/companies/empirical-tax-services (data as of September 21, 2026).