Plan Ledger DOL Form 5500 · updated monthly

Mainstream Engineering Corporation401(k)

MAINSTREAM ENGINEERING CORPORATION 401(K) SAVINGS PLAN · ROCKLEDGE, FL · plan year 2024

Reported admin expense ratio · 2024
0.11%

Peer grade: A- · admin costs + employer contributions vs same-size plans · how grading works

Mainstream Engineering Corporation reported $16,818 in plan administrative expenses for 2024: 0.11% of average plan assets, lower than ~75% of peers. Employer contributions averaged $2,550 per active participant. This ratio covers administrative expenses reported on the plan's Schedule H only; fund-level expense ratios are not included in public structured data — see methodology.

Across the 2 years on file its reported administrative ratio fell from 0.17% to 0.11%. The plan sits in the $10M–$50M size bracket, benchmarked here against 27,838 comparable plans and shown alongside other manufacturing employers. By assets it is the 1,287th-largest of 3,644 plans among Florida employers on file, and the 6,700th of 13,661 in manufacturing. In 2024, employees put in $2.41 for every $1.00 the employer contributed; active participation has grown from 122 to 173 since 2022.

Plan summary
Net assets, end of year$16,409,430
Participants with balances180
Active participants173
Employer contributions$441,165
Employee contributions$1,062,893
Employer contribution per active participant$2,550
Average account balance$91,164
Benefits paid to participants$757,327
Plan auditUnmodified (clean) audit opinion
Plan history3
Yearassets · accounts · employer contribution
2024$16.4M · 180 accts · $441K emplr
2023$13.8M · 166 accts · $388K emplr
2022$11.3M · 148 accts · $374K emplr
Administrative expenses, itemized · 2024
Recordkeeping & contract admin$16,818
Total administrative$16,818
The Mainstream Engineering Corporation 401(k) match · 2024
Employer contribution per active participant$2,550
Median for plans this size$2,416
2024$2,550 per active participant
2023$2,535 per active participant
2022$3,066 per active participant

Mainstream Engineering Corporation's 2024 employer contribution ran above the $2,416 median for plans its size. Filings report dollars actually contributed, not the match formula; the formula itself (for example, 50% of the first 6% of pay) lives in the plan's summary plan description from HR.

What these fees cost you

Annual cost at the plan's reported 2024 administrative ratio, against the median plan its size; fund expense ratios are extra. Compare any plan.

Service providers · 20241
PRINCIPAL LIFE INSURANCE COMPANY · Contract administrator · Loan processing$16,855

Compensation shown is direct payments from plan assets reported on Schedule C. Providers paid through fund revenue-sharing appear as indirect.

Administrative cost history3
2024$16,818 · 0.11%
2023$24,374 · 0.19%
2022$20,719 · 0.17%
Similar plansManufacturing · Florida
Avidyne Corporation FL$17.2M · 0.04%
Mwi Corporation FL$17.0M · 0.39%
Rex Lumber, LLC FL$16.7M · 0.76%
Tervis Tumbler Company FL$16.3M · 0.23%

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Source: U.S. Department of Labor, Form 5500 series, EIN 592744408 · Verify on EFAST2 · Amounts are as reported by the plan sponsor for the plan year shown.