What public Form 5500 filings show about the Isthmus Engineering and Manufacturing 401(k) plan — and how to find and check your own account.
Isthmus Engineering and Manufacturing (EIN 39-1422973) reports ISTHMUS ENGINEERING AND MANUFACTURING EMPLOYEES' RETIREMENT PLAN on its most recent Form 5500, with $28.9M in plan assets across 69 active participants. Form 5500 is the annual report employers file with the U.S. Department of Labor for their retirement plans, and it’s public.
See the full Isthmus Engineering and Manufacturing filing — schedules, fees, and providers.
Isthmus Engineering and Manufacturing’s Form 5500 doesn’t separately disclose a recordkeeper we can confirm. The firms named on its Schedule C are service providers — which can include investment managers, trustees, and auditors, and are not necessarily the company that runs your account. To find who runs your 401(k), check your enrollment paperwork or a recent statement, or ask Isthmus Engineering and ManufacturingHR for the recordkeeper’s name and login.
