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  1. Companies/
  2. Mainstream Engineering Corporation

Filings through Oct 24, 2026.

Mainstream Engineering Corporation

EIN 59-2744408-defense & space-Latest filing 2025
Plans
1
Retirement
1
$19.3M assets
Health & Benefits
0
Participants
205
200 YELLOW PL - ROCKLEDGE, FL 329555327321-631-3550mainstream-engr.comLinkedIn51-200 employeesdefense & space
Plans on this EIN
1 filing
#002401(k)-$19.3M - 205 part

Plan summaries

The plan page shows fees vs peers, audit grade, asset history, contributions and Schedule C providers.

Retirement#002

MAINSTREAM ENGINEERING CORPORATION 401(K) SAVINGS PLAN

401(k)

Assets$19.3M
Participants205
On the plan page
Fees vs peersAudit gradeAsset trajectoryContributionsSch C providers
Open plan
This company has one plan on file. Open the plan page to see all of its data.

Retirement plans

1 plan on this EIN

PlanNameTypeAssetsParticipantsLatest year
#002MAINSTREAM ENGINEERING CORPORATION 401(K) SAVINGS PLAN401(k)$19.3M2052025
  • MAINSTREAM ENGINEERING CORPORATION 401(K) SAVINGS PLAN$19.3M
    #002 · 401(k) · 2025205
Retirement plans
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