Civic Intelligence

Mainstream Engineering Corporation

Plan context: Mainstream Engineering Corporation 401(K) Savings Plan

EIN 59-2744408 • Rockledge, FL • 25 filings • 2 plans

200 Yellow PlRockledge, FL 32955-5327
Current Snapshot

Latest Year

2024

2024 Participants

173

2024 Assets

$16,409,430

2024 Contributions

$1,520,281

Historical Graphs

Total Assets Over Time

Aggregate end-of-year assets by filing year, excluding zero-asset years

$16,409,430$8,204,715$0200020142024YearValue
$16,409,430Latest year 2024

Participants Over Time

Largest reported end-of-year plan headcount by filing year, used to avoid double-counting participants across overlapping plans

173870200020122024YearValue
173Latest year 2024

Company Timeline

Year summaries and individual filings are combined here so you can stay in one place while moving across years and plan filings.

Year / FilingFilingsParticipantsAssetsContributionsContrib./Participant
20241173$16,409,430$1,520,281$8,788iApproximate average salary by contribution assumption: employee only about $219,694 at 4% or $146,463 at 6%; with 50% employer match about $146,463 at 4% or $97,642 at 6%; with 100% employer match about $109,847 at 4% or $73,231 at 6%.
Mainstream Engineering Corporation 401(K) Savings Plan-173$16,409,430$1,520,281$8,788iApproximate average salary by contribution assumption: employee only about $219,694 at 4% or $146,463 at 6%; with 50% employer match about $146,463 at 4% or $97,642 at 6%; with 100% employer match about $109,847 at 4% or $73,231 at 6%.
20231153$13,785,411$1,740,369$11,375iApproximate average salary by contribution assumption: employee only about $284,374 at 4% or $189,583 at 6%; with 50% employer match about $189,583 at 4% or $126,388 at 6%; with 100% employer match about $142,187 at 4% or $94,791 at 6%.
Mainstream Engineering Corporation 401(K) Savings Plan-153$13,785,411$1,740,369$11,375iApproximate average salary by contribution assumption: employee only about $284,374 at 4% or $189,583 at 6%; with 50% employer match about $189,583 at 4% or $126,388 at 6%; with 100% employer match about $142,187 at 4% or $94,791 at 6%.
20221122$11,290,786$1,259,100$10,320iApproximate average salary by contribution assumption: employee only about $258,012 at 4% or $172,008 at 6%; with 50% employer match about $172,008 at 4% or $114,672 at 6%; with 100% employer match about $129,006 at 4% or $86,004 at 6%.
Mainstream Engineering Corporation 401(K) Savings Plan-122$11,290,786$1,259,100$10,320iApproximate average salary by contribution assumption: employee only about $258,012 at 4% or $172,008 at 6%; with 50% employer match about $172,008 at 4% or $114,672 at 6%; with 100% employer match about $129,006 at 4% or $86,004 at 6%.
20211123$13,668,965$1,239,584$10,078iApproximate average salary by contribution assumption: employee only about $251,948 at 4% or $167,965 at 6%; with 50% employer match about $167,965 at 4% or $111,977 at 6%; with 100% employer match about $125,974 at 4% or $83,983 at 6%.
Mainstream Engineering Corporation 401(K) Savings Plan-123$13,668,965$1,239,584$10,078iApproximate average salary by contribution assumption: employee only about $251,948 at 4% or $167,965 at 6%; with 50% employer match about $167,965 at 4% or $111,977 at 6%; with 100% employer match about $125,974 at 4% or $83,983 at 6%.
20201117$11,218,547$1,147,444$9,807iApproximate average salary by contribution assumption: employee only about $245,180 at 4% or $163,454 at 6%; with 50% employer match about $163,454 at 4% or $108,969 at 6%; with 100% employer match about $122,590 at 4% or $81,727 at 6%.
Mainstream Engineering Corporation 401(K) Savings Plan-117$11,218,547$1,147,444$9,807iApproximate average salary by contribution assumption: employee only about $245,180 at 4% or $163,454 at 6%; with 50% employer match about $163,454 at 4% or $108,969 at 6%; with 100% employer match about $122,590 at 4% or $81,727 at 6%.
2019199$9,377,701$1,001,645$10,118iApproximate average salary by contribution assumption: employee only about $252,941 at 4% or $168,627 at 6%; with 50% employer match about $168,627 at 4% or $112,418 at 6%; with 100% employer match about $126,470 at 4% or $84,314 at 6%.
Mainstream Engineering Corporation 401(K) Savings Plan-99$9,377,701$1,001,645$10,118iApproximate average salary by contribution assumption: employee only about $252,941 at 4% or $168,627 at 6%; with 50% employer match about $168,627 at 4% or $112,418 at 6%; with 100% employer match about $126,470 at 4% or $84,314 at 6%.
2018194$7,405,059$1,028,416$10,941iApproximate average salary by contribution assumption: employee only about $273,515 at 4% or $182,343 at 6%; with 50% employer match about $182,343 at 4% or $121,562 at 6%; with 100% employer match about $136,757 at 4% or $91,172 at 6%.
Mainstream Engineering Corporation 401(K) Savings Plan-94$7,405,059$1,028,416$10,941iApproximate average salary by contribution assumption: employee only about $273,515 at 4% or $182,343 at 6%; with 50% employer match about $182,343 at 4% or $121,562 at 6%; with 100% employer match about $136,757 at 4% or $91,172 at 6%.
2017193$7,756,825$894,639$9,620iApproximate average salary by contribution assumption: employee only about $240,494 at 4% or $160,330 at 6%; with 50% employer match about $160,330 at 4% or $106,886 at 6%; with 100% employer match about $120,247 at 4% or $80,165 at 6%.
Mainstream Engineering Corporation 401(K) Savings Plan-93$7,756,825$894,639$9,620iApproximate average salary by contribution assumption: employee only about $240,494 at 4% or $160,330 at 6%; with 50% employer match about $160,330 at 4% or $106,886 at 6%; with 100% employer match about $120,247 at 4% or $80,165 at 6%.
2016194$6,029,908$849,830$9,041iApproximate average salary by contribution assumption: employee only about $226,019 at 4% or $150,679 at 6%; with 50% employer match about $150,679 at 4% or $100,453 at 6%; with 100% employer match about $113,009 at 4% or $75,340 at 6%.
Mainstream Engineering Corporation 401(K) Savings Plan-94$6,029,908$849,830$9,041iApproximate average salary by contribution assumption: employee only about $226,019 at 4% or $150,679 at 6%; with 50% employer match about $150,679 at 4% or $100,453 at 6%; with 100% employer match about $113,009 at 4% or $75,340 at 6%.
20151107$5,469,870$666,561$6,230iApproximate average salary by contribution assumption: employee only about $155,739 at 4% or $103,826 at 6%; with 50% employer match about $103,826 at 4% or $69,217 at 6%; with 100% employer match about $77,869 at 4% or $51,913 at 6%.
Mainstream Engineering Corporation 401(K) Savings Plan-107$5,469,870$666,561$6,230iApproximate average salary by contribution assumption: employee only about $155,739 at 4% or $103,826 at 6%; with 50% employer match about $103,826 at 4% or $69,217 at 6%; with 100% employer match about $77,869 at 4% or $51,913 at 6%.
20141110$5,573,383$910,130$8,274iApproximate average salary by contribution assumption: employee only about $206,848 at 4% or $137,898 at 6%; with 50% employer match about $137,898 at 4% or $91,932 at 6%; with 100% employer match about $103,424 at 4% or $68,949 at 6%.
Mainstream Engineering Corporation 401(K) Savings Plan-110$5,573,383$910,130$8,274iApproximate average salary by contribution assumption: employee only about $206,848 at 4% or $137,898 at 6%; with 50% employer match about $137,898 at 4% or $91,932 at 6%; with 100% employer match about $103,424 at 4% or $68,949 at 6%.
20131104$4,586,791$677,524$6,515iApproximate average salary by contribution assumption: employee only about $162,866 at 4% or $108,578 at 6%; with 50% employer match about $108,578 at 4% or $72,385 at 6%; with 100% employer match about $81,433 at 4% or $54,289 at 6%.
Mainstream Engineering Corporation 401(K) Savings Plan-104$4,586,791$677,524$6,515iApproximate average salary by contribution assumption: employee only about $162,866 at 4% or $108,578 at 6%; with 50% employer match about $108,578 at 4% or $72,385 at 6%; with 100% employer match about $81,433 at 4% or $54,289 at 6%.
2012192$3,343,795$864,373$9,395iApproximate average salary by contribution assumption: employee only about $234,884 at 4% or $156,589 at 6%; with 50% employer match about $156,589 at 4% or $104,393 at 6%; with 100% employer match about $117,442 at 4% or $78,295 at 6%.
Mainstream Engineering Corporation 401(K) Savings Plan-92$3,343,795$864,373$9,395iApproximate average salary by contribution assumption: employee only about $234,884 at 4% or $156,589 at 6%; with 50% employer match about $156,589 at 4% or $104,393 at 6%; with 100% employer match about $117,442 at 4% or $78,295 at 6%.
2011187$2,464,391$597,143$6,864iApproximate average salary by contribution assumption: employee only about $171,593 at 4% or $114,395 at 6%; with 50% employer match about $114,395 at 4% or $76,263 at 6%; with 100% employer match about $85,796 at 4% or $57,198 at 6%.
Mainstream Engineering Corporation 401(K) Savings Plan-87$2,464,391$597,143$6,864iApproximate average salary by contribution assumption: employee only about $171,593 at 4% or $114,395 at 6%; with 50% employer match about $114,395 at 4% or $76,263 at 6%; with 100% employer match about $85,796 at 4% or $57,198 at 6%.
2010172$2,430,999$483,973$6,722iApproximate average salary by contribution assumption: employee only about $168,046 at 4% or $112,031 at 6%; with 50% employer match about $112,031 at 4% or $74,687 at 6%; with 100% employer match about $84,023 at 4% or $56,015 at 6%.
Mainstream Engineering Corporation 401(K) Savings Plan-72$2,430,999$483,973$6,722iApproximate average salary by contribution assumption: employee only about $168,046 at 4% or $112,031 at 6%; with 50% employer match about $112,031 at 4% or $74,687 at 6%; with 100% employer match about $84,023 at 4% or $56,015 at 6%.
2009158$1,739,543$284,403$4,904iApproximate average salary by contribution assumption: employee only about $122,588 at 4% or $81,725 at 6%; with 50% employer match about $81,725 at 4% or $54,483 at 6%; with 100% employer match about $61,294 at 4% or $40,863 at 6%.
Mainstream Engineering Corporation 401(K) Savings Plan-58$1,739,543$284,403$4,904iApproximate average salary by contribution assumption: employee only about $122,588 at 4% or $81,725 at 6%; with 50% employer match about $81,725 at 4% or $54,483 at 6%; with 100% employer match about $61,294 at 4% or $40,863 at 6%.
2008160$1,374,146$281,723$4,695iApproximate average salary by contribution assumption: employee only about $117,385 at 4% or $78,256 at 6%; with 50% employer match about $78,256 at 4% or $52,171 at 6%; with 100% employer match about $58,692 at 4% or $39,128 at 6%.
Mainstream Engineering Corporation 401(K) Savings Plan-60$1,374,146$281,723$4,695iApproximate average salary by contribution assumption: employee only about $117,385 at 4% or $78,256 at 6%; with 50% employer match about $78,256 at 4% or $52,171 at 6%; with 100% employer match about $58,692 at 4% or $39,128 at 6%.
2007150$0$0-
Mainstream Engineering Corporation 401(K) Savings Plan-50---
2006129$1,432,262$220,128$7,591iApproximate average salary by contribution assumption: employee only about $189,766 at 4% or $126,510 at 6%; with 50% employer match about $126,510 at 4% or $84,340 at 6%; with 100% employer match about $94,883 at 4% or $63,255 at 6%.
Mainstream Engineering Corporation 401(K) Savings Plan-29$1,432,262$220,128$7,591iApproximate average salary by contribution assumption: employee only about $189,766 at 4% or $126,510 at 6%; with 50% employer match about $126,510 at 4% or $84,340 at 6%; with 100% employer match about $94,883 at 4% or $63,255 at 6%.
2005125$1,074,770$212,461$8,498iApproximate average salary by contribution assumption: employee only about $212,461 at 4% or $141,641 at 6%; with 50% employer match about $141,641 at 4% or $94,427 at 6%; with 100% employer match about $106,231 at 4% or $70,820 at 6%.
Mainstream Engineering Corporation 401(K) Savings Plan-25$1,074,770$212,461$8,498iApproximate average salary by contribution assumption: employee only about $212,461 at 4% or $141,641 at 6%; with 50% employer match about $141,641 at 4% or $94,427 at 6%; with 100% employer match about $106,231 at 4% or $70,820 at 6%.
2004120$979,905$183,733$9,187iApproximate average salary by contribution assumption: employee only about $229,666 at 4% or $153,111 at 6%; with 50% employer match about $153,111 at 4% or $102,074 at 6%; with 100% employer match about $114,833 at 4% or $76,555 at 6%.
Mainstream Engineering Corporation 401(K) Savings Plan-20$979,905$183,733$9,187iApproximate average salary by contribution assumption: employee only about $229,666 at 4% or $153,111 at 6%; with 50% employer match about $153,111 at 4% or $102,074 at 6%; with 100% employer match about $114,833 at 4% or $76,555 at 6%.
2003121$0$0-
Mainstream Engineering Corporation 401(K) Savings Plan-21---
2002120$561,401$102,528$5,126iApproximate average salary by contribution assumption: employee only about $128,160 at 4% or $85,440 at 6%; with 50% employer match about $85,440 at 4% or $56,960 at 6%; with 100% employer match about $64,080 at 4% or $42,720 at 6%.
Mainstream Engineering Corporation 401(K) Savings Plan-20$561,401$102,528$5,126iApproximate average salary by contribution assumption: employee only about $128,160 at 4% or $85,440 at 6%; with 50% employer match about $85,440 at 4% or $56,960 at 6%; with 100% employer match about $64,080 at 4% or $42,720 at 6%.
2001119$0$0-
Mainstream Engineering Corporation 401(K) Savings Plan-19---
2000112$491,556$101,911$8,493iApproximate average salary by contribution assumption: employee only about $212,315 at 4% or $141,543 at 6%; with 50% employer match about $141,543 at 4% or $94,362 at 6%; with 100% employer match about $106,157 at 4% or $70,772 at 6%.
Mainstream Engineering Corporation 401(K) Savings Plan-12$491,556$101,911$8,493iApproximate average salary by contribution assumption: employee only about $212,315 at 4% or $141,543 at 6%; with 50% employer match about $141,543 at 4% or $94,362 at 6%; with 100% employer match about $106,157 at 4% or $70,772 at 6%.