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U.S. Securities and Exchange Commission, EDGAR submissions API
Business address and latest annual report (Form 10-K) for each company, from https://data.sec.gov/submissions/CIK##########.json
Retrieved November 3, 2026. Public domain (U.S. government work). Permitted
Reliability:
Government.
Addresses are what each company reports to the SEC on its filings. The SEC has no stake in where companies locate.
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U.S. Bureau of Labor Statistics, QCEW establishment size data
First-quarter counts of private worksites with 1,000 or more employees and their March employment, 2019-2026 (same file pattern for each year)
Retrieved November 3, 2026. Public domain (U.S. government work). Permitted
Reliability:
Government.
Built from unemployment-insurance tax reports that nearly all employers file each quarter. Washington's data come from the state Employment Security Department.
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U.S. Bureau of Labor Statistics, QCEW series ENU5300020510, ENUUS00020510, ENU5300010510, ENUUS00010510
Private-sector establishment counts and employment, Washington and U.S.
Retrieved November 3, 2026. Public domain (U.S. government work). Permitted
Reliability:
Government.
Same unemployment-insurance records as the size data. Establishment counts depend on how employers' reporting units are recorded.
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Washington Employment Security Department, WARN layoff and closure database
Every layoff and closure notice in the database, June 2018 to November 2, 2026
Retrieved November 3, 2026. Public record (Washington state government). Permitted
Reliability:
Government.
Notices are filed by employers under the federal WARN Act and, from July 27, 2025, Washington's own notice law. ESD lists them by the date it receives them. The first 15 rows of the copy matched the live table on November 3, 2026.
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Washington State Legislature, RCW 49.45.010
Definitions of covered employer and mass layoff in Washington's notice law (2025 c 277)
Retrieved November 3, 2026. Public record (Washington state government). Permitted
Reliability:
Government.
Official statute text from the Code Reviser.
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Washington Employment Security Department
Date the state notice law took effect
Retrieved November 3, 2026. Public record (Washington state government). Permitted
Reliability:
Government.
The agency that administers the notice law and keeps the database.
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29 U.S. Code 2101 (Legal Information Institute, Cornell Law School)
Federal WARN Act definitions of employer and mass layoff
Retrieved November 3, 2026. Public domain statute text. Permitted
Reliability:
Academic.
Cornell's copy of the U.S. Code text.
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Census Bureau Business Formation Statistics via FRED, BAHBATOTALNSAWA
Monthly high-propensity business applications, Washington, not seasonally adjusted
Retrieved November 3, 2026. Public domain (U.S. government work). Permitted
Reliability:
Government.
Census counts applications for federal employer ID numbers and flags those likely to become employers. FRED republishes the series unchanged.
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Census Bureau Business Formation Statistics via FRED, BAHBATOTALNSAUS
Monthly high-propensity business applications, United States, not seasonally adjusted
Retrieved November 3, 2026. Public domain (U.S. government work). Permitted
Reliability:
Government.
Same Census program as the Washington series.
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FRED, resident population WAPOP (Census) and B230RC0A052NBEA (BEA)
Annual population of Washington and the U.S. (U.S. series https://fred.stlouisfed.org/series/B230RC0A052NBEA), used for per-person rates
Retrieved November 3, 2026. Public domain (U.S. government work). Permitted
Reliability:
Government.
Census Bureau and Bureau of Economic Analysis population estimates.
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Washington Employment Security Department, Monthly Employment Report charts workbook, September 2026
Over-the-year job change by industry, September 2025 to September 2026 (sheet 'Industry employment OTY, nsa', updated October 14, 2026)
Retrieved November 3, 2026. Public record (Washington state government). Permitted
Reliability:
Government.
ESD's monthly survey-based estimates (Current Employment Statistics), revised when benchmarked to tax records.
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InvestmentNews
Fisher Investments headquarters move, March 27, 2023
Retrieved November 3, 2026. All rights reserved. Link only
Reliability:
News report.
Trade news report.
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Southern Business & Development
Avalara headquarters now Durham, June 24, 2024
Retrieved November 3, 2026. All rights reserved. Link only
Reliability:
News report.
Economic-development trade publication quoting the company.
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KIRO 7
Payscale headquarters change, December 8, 2025
Retrieved November 3, 2026. All rights reserved. Link only
Reliability:
News report.
Local TV news report.
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Trade & Industry Development
Starbucks Nashville office, April 22, 2026
Retrieved November 3, 2026. All rights reserved. Link only
Reliability:
News report.
Economic-development trade publication reporting the Tennessee announcement.
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KIRO 7
Columbia Bank executive office in Arizona, October 2026
Retrieved November 3, 2026. All rights reserved. Link only
Reliability:
News report.
Local TV news report summarizing the Puget Sound Business Journal.
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U.S. Bureau of Labor Statistics, Business Employment Dynamics, series BDS0000053000000000120007RQ5, BDS0000053000000000120008RQ5, BDS0000000000000000120007RQ5, BDS0000000000000000120008RQ5, BDS0000053000000000120007LQ5, BDS0000053000000000120008LQ5
Quarterly private establishment births (openings of new businesses) and deaths (closings that last a year), as a percent of establishments, Washington and U.S., seasonally adjusted, 2014 to early 2026; Washington counts from 2017
Retrieved November 3, 2026. Public domain (U.S. government work). Permitted
Reliability:
Government.
Built from the same unemployment-insurance records as the QCEW, linked across quarters so new and closed businesses can be told apart from accounts that change hands.
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U.S. Bureau of Labor Statistics, Current Employment Statistics, series SMS53000000500000001 and CES0500000001
Monthly private-sector jobs, Washington and U.S., seasonally adjusted, thousands
Retrieved November 3, 2026. Public domain (U.S. government work). Permitted
Reliability:
Government.
Monthly payroll survey estimates, benchmarked each year to tax records.
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Tax Foundation, 2026 State Tax Competitiveness Index
Washington's overall rank for 2020-2026 from the edition's table of past ranks recomputed with the 2026 method
Retrieved November 3, 2026. Publisher copyright; ranks cited as facts. Facts cited with attribution
Reliability:
Advocacy group.
Has a stake in this finding. A think tank that favors low, broad-based taxes. Its index scores tax structure only, not overall economic conditions.
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CNBC, America's Top States for Business 2019
Washington's 2019 overall, Cost of Doing Business and Business Friendliness ranks
Retrieved November 3, 2026. Publisher copyright; ranks cited as facts. Facts cited with attribution
Reliability:
News report.
A business news network that scores states in 10 categories from public data; weights change each year.
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CNBC, America's Top States for Business 2026: Washington
Washington's 2026 overall, Cost of Doing Business and Business Friendliness ranks, and the 2025 ranks the page compares them with
Retrieved November 3, 2026. Publisher copyright; ranks cited as facts. Facts cited with attribution
Reliability:
News report.
A business news network that scores states in 10 categories from public data; weights change each year.