Washington Business Search

Find Washington business entities by name or registration number. Look up addresses, entity types, and company details for WA-registered LLCs, corporations, and more.

Top Companies in Washington

Largest Washington business entities by revenue. Filter by employee size or sort by different criteria.

Company NameEmailCountryCityAddress 1PhoneState/ProvincePostal CodeWebsiteFounding YearYearly Revenue in U.S. DollarsEmployees TotalBusiness Legal Type - DescriptionNumber of Companies in GroupCompany Registration Number
1
Bill & Melinda Gates Foundation Trust, LLC
*****@***.***
USA
Seattle
500 5th Ave N
+** ********
King
98109
gatesfoundation.*****
2016
$9,580,009,055
20
N/A
N/A
604705808
2
Providence Health & Services And Swedish Health Services
******@****.***
USA
Renton
1801 Lind Ave Sw
+** *********
King
98057
providence.*****
2013
$4,416,982,533
1
N/A
N/A
N/A
3
Providence Plan Partners
*******@*****.***
USA
Renton
1801 Lind Ave Sw
+** ********
King
98057
N/A
1997
$2,089,967,036
23
N/A
N/A
601797215
4
Chp Of Washington
********@******.***
USA
Seattle
1111 3rd Ave Ste 400
+** *********
King
98101
chpw.*****
2010
$1,458,005,191
2
N/A
N/A
911729710
5
Kaiju Security LLC
*********@*******.***
USA
Edmonds
611 Main St Ste A
+** ********
Snohomish
98020
N/A
2022
$1,200,000,000
1
N/A
N/A
604959586
6
Virginia Mason Clinic
**********@********.***
USA
Seattle
925 Seneca St
+** *********
King
98101
vmfh.*****
1992
$1,156,188,134
346
N/A
N/A
N/A
7
Kadlec Regional Medical Center
***********@***.***
USA
Renton
1801 Lind Ave Sw Bldg 2
+** ********
King
98057
N/A
N/A
$828,794,927
24
N/A
N/A
N/A
8
Overlake Hospital Association
************@****.***
USA
Bellevue
1035 116th Ave Ne
+** *********
King
98004
overlakehospital.*****
2011
$711,637,000
261
N/A
N/A
601076741
9
Public Utility District NO. 1 Of Chelan County
*****@*****.***
USA
Wenatchee
203 Olds Station Rd
+** ********
Chelan
98801
chelanpud.*****
1936
$575,865,000
841
N/A
N/A
N/A
10
Peacehealth Southwest Medical Center
******@******.***
USA
Vancouver
400 Ne Mother Joseph Pl
+** *********
Clark
98664
peacehealth.*****
1966
$573,754,160
2,470
N/A
N/A
600250191
Download 1,370,078 Companies
Washington-Companies.csv

Washington Business Entity Search

Looking up a Washington business entity? Our database lets you search by company name or registration number and get instant results — including the company's registered address, entity type (LLC, Corporation, etc.), founding year, industry classification, and employee count.

This is a faster alternative to the Washington Secretary of State's official filing database, with additional data fields like revenue estimates and corporate hierarchy that state registries don't provide. Results cover both active and inactive entities.

What you can look up

  • Registered business address
  • Entity type (LLC, Corp, LP, etc.)
  • Registration / filing number
  • Founding year & status
  • Industry classification (SIC/NAICS)

Additional data available

  • Employee count & revenue estimates
  • Corporate hierarchy & parent company
  • Email & phone (with data license)
  • Website & trade names
  • Bulk export to CSV

Related searches

washington secretary of state business searchwashington business searchwashington business entity searchwashington llc searchwashington business name search

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