WA
West Coast Region

Washington

WA

Business Intelligence APIs

Access Washington Secretary of State data and L&I contractor licenses. Major tech hub - complete WA coverage.

780K
Active Businesses
88K/year
New Formations
3.8%
Annual Growth
42
License Boards

APIs for Washington

5 integrated data sources covering WA business intelligence

Washington Business Landscape

Real-time access to WA business formation, verification, and compliance data

780K
Registered Businesses
Active business entities on file
88K/year
Annual New Formations
New entities registered yearly
3.8%
Year-over-Year Growth
Business formation growth rate
WA
Washington
West Coast

Professional License Verification

CHIRON provides comprehensive access to Washington licensing boards

42
State Licensing Boards

Integrated data sources for professional verification

Full Coverage
Data Coverage Level

Comprehensive Washington professional data access

<1s
Verification Speed

Real-time license status checks

PLUTUS Sales Tax API

Washington Sales Tax Complexity

Navigate WA's 420 tax jurisdictions with precision. PLUTUS handles state, county, city, and special district rates automatically.

Base State Rate6.5%
Tax Jurisdictions420
Rate Lookup Speed<100ms
tax_lookup.py
import plutus

# Get tax rate for Washington address
rate = plutus.get_rate(
  street="123 Main St",
  city="Seattle",
  state="WA",
  zip="12345"
)

# Response
{
  "combined_rate": 8%,
  "state_rate": 6.5%,
  "county_rate": 1.0%,
  "city_rate": 0.5%
}

Major Washington Metros

Explore detailed business intelligence for WA's largest metropolitan areas

Ready to access Washington data?

Get started with Olympus APIs and unlock comprehensive WA business intelligence across all 5 integrated data sources.

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