OpenERISA

Mainstream Engineering Corporation

Rockledge, FL, 329555327

EIN 59-2744408
Plans
1
Total participants
688
Filing years
2024, 2023, 2022, 2021, 2020
NAICS
333410

Benefit plans on file

YearFormPlan #Plan nameParticipants
2024Form 5500002Mainstream Engineering Corporation 401(K) Savings Plan173
2023Form 5500002Mainstream Engineering Corporation 401(K) Savings Plan153
2022Form 5500002Mainstream Engineering Corporation 401(K) Savings Plan122
2021Form 5500002Mainstream Engineering Corporation 401(K) Savings Plan123
2020Form 5500002Mainstream Engineering Corporation 401(K) Savings Plan117

Data shown as filed with the U.S. Department of Labor (EBSA), filing years 2020–2025; not validated by OpenERISA. View official filings for this EIN on the DOL EFAST2 search.

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