- Alabama
- Alaska
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- West Virginia
- Wisconsin
- Wyoming
How to Conduct a Washington Business Entity Search
- How to Conduct a Washington Business Entity Search
- How To Find the Owner of a Business Entity in Washington
- Why Conduct a Washington Entity Search?
- Who Holds Data for Washington Business Entity Search?
- What Entities Can You Register in Washington?
- How Do I Check If a Business Entity Name is Taken in Washington?
- How Do I Set up A Business Entity in Washington?
- How Much Does It Cost to Start a Business in Washington?
- Additional Information Available on the Washington Secretary of State's Website
- FAQs about Business Entity Searches in Washington
- EntityCheck in US States

Tax advantages, pro-business programs, and a skilled workforce are just a few of the reasons why so many new business entities, from sole proprietorships to limited partnerships, register new business entities daily in Washington state. The most reliable and accurate source for information about Washington business entities is typically the Washington Secretary of State's website.
Finding detailed information about Washington business entities is usually straightforward, whether for personal reasons, like confirming a company's legitimacy, or for business reasons, such as vetting a potential partner.
Choose Your Search Criteria
- Corporation Search:
Search by full or partial business name or UBI. Advanced options include agent name, formation date, and more.
- Charity/Fundraiser/Trust Search:
Search by registration number, EIN, UBI, or organization name. Advanced options include officer names, keywords, and status.
Review Search Results
After entering your criteria and clicking 'Search', you'll see a list of matching business entities. Corporation search results show name, UBI, business type, address, registered agent, and status. Charity results display name, city, and program service percentage. Click a name to view more.
Access Detailed Information
After selecting a business name, you can view detailed records for corporations or charities.
- Business Type
- Principal Office Address
- Mailing Address
- Nature of Business
- Registered Agent Information
- Business Filings
- Alternate Names (Charities)
- Mission Statement (Charities)
- Officer Details (Charities)
- Filing History (Charities)
Further Assistance
Contact the Washington Secretary of State's office if you need assistance performing a business entity search.
How To Find the Owner of a Business Entity in Washington

- Chambers of Commerce
Local chambers of commerce often maintain public directories of members, which sometimes include ownership details.
- Better Business Bureau (BBB)
The BBB sometimes publishes business profiles, including company ownership, plus customer reviews and complaints.
- Other Public Records
Business licenses, real estate records, and court documents involving the business entity may reveal ownership.
Why Conduct a Washington Entity Search?
Entity searches may be used to verify critical information about Washington businesses, including:
- Check a business's registration status
- Confirm ownership or ensure compliance
- Protect against scams
- Evaluate a company's legitimacy before doing business

Verifying a company's credibility before entering a professional relationship helps build trust and reduce risk.

Business entity searches offer insight into ownership structure and legal standing for better-informed investment decisions.

Searches can confirm the legitimacy of suppliers or partners before entering agreements.

Confirming ownership and registration details helps identify scams or fraudulent business practices.
Who Holds Data for Washington Business Entity Search?
The following agencies may hold relevant information about Washington business entities:
- Washington Secretary of State
- Washington State Department of Revenue
- Department of Licensing UCC Office
- Washington Bar Association
- Office of the Insurance Commissioner
- Employment Security Department
- Utilities and Transportation Commission
- County Auditor Offices
- Department of Health
What Entities Can You Register in Washington?

- Corporations
A corporation is a business entity separate from its owners. It offers limited liability protection and is taxed independently at the corporate level. In Washington, corporations must register and file bylaws with the Secretary of State.
- Limited Partnerships (LPs)
LPs have general partners who manage the business and non-managing limited partners with liability protection.
- Limited Liability Companies (LLCs)
LLCs protect business owners' liability while allowing profits and losses to be reported on personal tax returns. In Washington, LLCs must file an operating agreement with the Secretary of State.
- Nonprofit Corporations
Nonprofits are organizations created for public, charitable, educational, or religious purposes. They can qualify for tax-exempt status under federal and state law.
- Sole Proprietorship
In a sole proprietorship, an individual operates the business as themselves, and the law treats the individual and business as the same.
How Do I Check If a Business Entity Name Is Taken in Washington?
Starting a business in Washington involves several steps, including ensuring your desired business name is available. A unique business name is essential to establishing your brand and avoiding legal complications. Therefore, it is crucial to familiarize yourself with the Washington business naming rules.
You may use the Business Search page to check if your preferred business name is available.
Also, you may search through other databases to ensure your desired name is available. These platforms include:
- ICANN Domain Name Registration Data Lookup
- United States Patent and Trademark Office (USPTO)
- Trademark Electronic Search System (TESS)
How Do I Set up A Business Entity in Washington?
- Identify your business type and legal structure (profit, nonprofit, foreign corporation, professional corporation).
- Choose a unique business name using the Business Name Rules and Availability tool.
- File incorporation documents online.
- Obtain an Employer Identification Number (EIN) from the IRS.
- File for Beneficial Ownership Information (BOI) with FINCEN.
- Create an employer tax account with the Department of Labor.
- Establish a Washington tax account with the Washington Department of Taxes.
- Refer to the Register a Business in Washington guide for more help.
How Much Does It Cost to Start a Business in Washington?
The cost to start a business in Washington varies depending on the type and size of the business. Typical costs include:
- LLP Filing Fees
Domestic: $75, Foreign: $100
- Other Business Entity Filings
Domestic and Foreign (Corporations, LLCs, Nonprofits, etc.): $125
- Annual Report Filing Fees
Ranging from $15 to $200 depending on the entity type
- Renewal Schedule
LLPs and MBEs renew before April 1st; Nonprofits renew biennially; Corporations and LLCs renew during the first 2.5-3 months of each fiscal year
Additional Information Available on the Washington Secretary of State's Website

- Business Updates: Amendments, mergers, agent changes, and conversions.
- Reports and Renewals: Annual and biennial reports, renewals, reinstatements.
- End Registration: Terminate domestic or foreign business registration.
- Copies and Certificates: Request plain, authenticated, or certified business records.
- Other Services: Trademarks, data brokers, and additional support.
FAQs about Business Entity Searches in Washington
- Why would I need to search for a business entity in Washington?
To check business structure, verify status, or assess investment potential.
- What types of entities can I search for in Washington?
Partnerships, LLCs, LPs, nonprofits, MBEs, corporations, cooperatives, professional corporations.
- Where can I perform a business entity search in Washington?
Use the Business Search page.
- What information do I need to conduct an entity search in Washington?
Business name, record owner, or registered agent name.
- How do I find the official name of a Washington business?
Search via the Business Search web tool.
- Can I search for foreign entities in Washington?
Yes, foreign entities conducting business in Washington are searchable.
- What information can I find in the Washington entity search?
Status, type, address, reports, purpose, NAICS, agent info, filing history.
- How do I verify if a Washington business is in good standing?
Check status via the Business Search tool.
- Can I search for an entity in Washington by its owner's name?
Yes, partial or full names of owners can be used.
- How often is the Washington business entity database updated?
Regularly updated to reflect registrations, amendments, and more.
- Can I obtain copies of business filings in Washington?
Yes, through the Certified Copies page or a request form.
- How do I find out who the registered agent of a Washington business is?
Use the Business Search page to view registered agent details.
- How can I search for Washington businesses by their tax ID number?
This option is not available in the current system.
- What should I do if I can't find a business entity in the Washington search?
Try alternate spellings, verify the entity number, or use filters like 'start with' or 'exact match'.
- How to Conduct a Washington Business Entity Search
- How To Find the Owner of a Business Entity in Washington
- Why Conduct a Washington Entity Search?
- Who Holds Data for Washington Business Entity Search?
- What Entities Can You Register in Washington?
- How Do I Check If a Business Entity Name is Taken in Washington?
- How Do I Set up A Business Entity in Washington?
- How Much Does It Cost to Start a Business in Washington?
- Additional Information Available on the Washington Secretary of State's Website
- FAQs about Business Entity Searches in Washington
- EntityCheck in US States