Board of Trustees, Masonry Security Plan of Washington
Board of Trustees, Masonry Security Plan of Washington (EIN 91-6028573) has filed 1 Form 5500 plan with the U.S. Department of Labor, covering $14.1M in plan assets and 698 active participants. Each plan below links to its full filing — fees, funds, providers, and Schedule C/H detail.
Form 5500 plans filed under EIN 91-6028573
Form 5500 search →| Plan | Plan # | Participants | Assets |
|---|---|---|---|
| Masonry Security Plan of Washington | 501 | 698 | $14.1M |
Service providers reported by Board of Trustees, Masonry Security Plan of Washington
Providers are read from the Schedule C service-provider disclosures across this employer’s filings.
About this EIN
91-6028573 is the Employer Identification Number (EIN) Board of Trustees, Masonry Security Plan of Washington reports on its Form 5500 filings with the U.S. Department of Labor. The same EIN identifies the employer across all of its retirement and health plans.
Find other employers in the same state on Washington EIN lookup, or run a Form 5500 search to pull any company’s filing. New to these filings? Start with What is Form 5500?

