Mainstream Engineering Corporation 401(k) Savings Plan

What the Filing Says About Mainstream Engineering Corporation 401(k) Savings Plan

Mainstream Engineering Corporation 401(k) Savings Plan is a 401(k) retirement plan sponsored by Mainstream Engineering Corporation, headquartered in Florida. As of the 2023 Form 5500 filing, the plan reports $14M in total end-of-year assets and covers 122 participants across the Manufacturing industry. The sponsor's EIN on file with the U.S. Department of Labor is 592744408, and the plan has been effective since 1994-01-01. Its filing status is currently FILING RECEIVED.

Year over year, total assets moved from $11M at the beginning of 2023 to $14M at year-end - a gain of 22.1%. Net assets (after liabilities) closed the year at $14M, with reported net income of $2M driven by investment returns, contributions received, and benefit payments during the period. These figures reflect what the plan administrator certified on Schedule H or Schedule I of the Form 5500 annual return and can be compared against 2 prior plan-year filings from the same sponsor shown below.

Asset totals and participant counts reflect a single plan year snapshot and can change materially with market conditions, plan mergers, or workforce changes. Fields such as "net income" include both realized investment performance and contribution/distribution flows, a single-year figure does not by itself indicate plan health or participant outcomes. This page summarizes public DOL disclosures for research and educational purposes only and is not retirement, tax, legal, or financial advice. Before making decisions about your own retirement benefits or evaluating an employer's plan, verify the underlying filing directly via the DOL EFAST2 system and consult a qualified professional.