Mammoth Construction (EIN 81-4450777) has filed 1 Form 5500 plan with the U.S. Department of Labor, covering $221K in plan assets and 14 active participants. Each plan below links to its full filing — fees, funds, providers, and Schedule C/H detail.
| Plan | Plan # | Participants | Assets |
|---|---|---|---|
| Mammoth Construction 401(k) P/S Plan | 001 | 14 | $221K |
81-4450777 is the Employer Identification Number (EIN) Mammoth Construction 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 Wisconsin EIN lookup, or run a Form 5500 search to pull any company’s filing. New to these filings? Start with What is Form 5500?
