Civic Intelligence

Mechanical Air Systems Company

Plan context: Mechanical Air Systems Company Defined Benefit Plan

EIN 42-1181621 • Mason City, IA • 35 filings • 6 plans

2417 South Federal AvenueMason City, IA 50401
Current Snapshot

Latest Year

2025

2025 Participants

18

2025 Assets

$1,906,898

2025 Contributions

$123,740

Historical Graphs

Total Assets Over Time

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

$1,906,898$953,449$0199920122025YearValue
$1,906,898Latest year 2025

Participants Over Time

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

25130199920112025YearValue
18Latest year 2025

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
2025118$1,906,898$123,740$6,874iApproximate average salary by contribution assumption: employee only about $171,861 at 4% or $114,574 at 6%; with 50% employer match about $114,574 at 4% or $76,383 at 6%; with 100% employer match about $85,931 at 4% or $57,287 at 6%.
Mechanical Air Systems Company Defined Benefit Plan-18$1,906,898$123,740$6,874iApproximate average salary by contribution assumption: employee only about $171,861 at 4% or $114,574 at 6%; with 50% employer match about $114,574 at 4% or $76,383 at 6%; with 100% employer match about $85,931 at 4% or $57,287 at 6%.
2024120$1,590,242$132,332$6,617iApproximate average salary by contribution assumption: employee only about $165,415 at 4% or $110,277 at 6%; with 50% employer match about $110,277 at 4% or $73,518 at 6%; with 100% employer match about $82,708 at 4% or $55,138 at 6%.
Mechanical Air Systems Company Defined Benefit Plan-20$1,590,242$132,332$6,617iApproximate average salary by contribution assumption: employee only about $165,415 at 4% or $110,277 at 6%; with 50% employer match about $110,277 at 4% or $73,518 at 6%; with 100% employer match about $82,708 at 4% or $55,138 at 6%.
2023121$1,325,037$131,326$6,254iApproximate average salary by contribution assumption: employee only about $156,340 at 4% or $104,227 at 6%; with 50% employer match about $104,227 at 4% or $69,485 at 6%; with 100% employer match about $78,170 at 4% or $52,113 at 6%.
Mechanical Air Systems Company Defined Benefit Plan-21$1,325,037$131,326$6,254iApproximate average salary by contribution assumption: employee only about $156,340 at 4% or $104,227 at 6%; with 50% employer match about $104,227 at 4% or $69,485 at 6%; with 100% employer match about $78,170 at 4% or $52,113 at 6%.
2022121$1,027,692$129,168$6,151iApproximate average salary by contribution assumption: employee only about $153,771 at 4% or $102,514 at 6%; with 50% employer match about $102,514 at 4% or $68,343 at 6%; with 100% employer match about $76,886 at 4% or $51,257 at 6%.
Mechanical Air Systems Company Defined Benefit Plan-21$1,027,692$129,168$6,151iApproximate average salary by contribution assumption: employee only about $153,771 at 4% or $102,514 at 6%; with 50% employer match about $102,514 at 4% or $68,343 at 6%; with 100% employer match about $76,886 at 4% or $51,257 at 6%.
2021119$1,221,614$131,677$6,930iApproximate average salary by contribution assumption: employee only about $173,259 at 4% or $115,506 at 6%; with 50% employer match about $115,506 at 4% or $77,004 at 6%; with 100% employer match about $86,630 at 4% or $57,753 at 6%.
Mechanical Air Systems Company Defined Benefit Plan-19$1,221,614$131,677$6,930iApproximate average salary by contribution assumption: employee only about $173,259 at 4% or $115,506 at 6%; with 50% employer match about $115,506 at 4% or $77,004 at 6%; with 100% employer match about $86,630 at 4% or $57,753 at 6%.
2020117$1,075,092$951,561$55,974iApproximate average salary by contribution assumption: employee only about $1,399,354 at 4% or $932,903 at 6%; with 50% employer match about $932,903 at 4% or $621,935 at 6%; with 100% employer match about $699,677 at 4% or $466,451 at 6%.
Mechanical Air Systems Company Defined Benefit Plan-17$1,075,092$951,561$55,974iApproximate average salary by contribution assumption: employee only about $1,399,354 at 4% or $932,903 at 6%; with 50% employer match about $932,903 at 4% or $621,935 at 6%; with 100% employer match about $699,677 at 4% or $466,451 at 6%.
201810$0$38,508-
Mechanical Air Systems Company 401K Plan-0$0$38,508-
2017123$864,955$91,062$3,959iApproximate average salary by contribution assumption: employee only about $98,980 at 4% or $65,987 at 6%; with 50% employer match about $65,987 at 4% or $43,991 at 6%; with 100% employer match about $49,490 at 4% or $32,993 at 6%.
Mechanical Air Systems Company 401K Plan-23$864,955$91,062$3,959iApproximate average salary by contribution assumption: employee only about $98,980 at 4% or $65,987 at 6%; with 50% employer match about $65,987 at 4% or $43,991 at 6%; with 100% employer match about $49,490 at 4% or $32,993 at 6%.
2016125$717,154$75,348$3,014iApproximate average salary by contribution assumption: employee only about $75,348 at 4% or $50,232 at 6%; with 50% employer match about $50,232 at 4% or $33,488 at 6%; with 100% employer match about $37,674 at 4% or $25,116 at 6%.
Mechanical Air Systems Company 401K Plan-25$717,154$75,348$3,014iApproximate average salary by contribution assumption: employee only about $75,348 at 4% or $50,232 at 6%; with 50% employer match about $50,232 at 4% or $33,488 at 6%; with 100% employer match about $37,674 at 4% or $25,116 at 6%.
2015121$604,629$66,768$3,179iApproximate average salary by contribution assumption: employee only about $79,486 at 4% or $52,990 at 6%; with 50% employer match about $52,990 at 4% or $35,327 at 6%; with 100% employer match about $39,743 at 4% or $26,495 at 6%.
Mechanical Air Systems Company 401K Plan-21$604,629$66,768$3,179iApproximate average salary by contribution assumption: employee only about $79,486 at 4% or $52,990 at 6%; with 50% employer match about $52,990 at 4% or $35,327 at 6%; with 100% employer match about $39,743 at 4% or $26,495 at 6%.
2014122$583,634$71,583$3,254iApproximate average salary by contribution assumption: employee only about $81,344 at 4% or $54,230 at 6%; with 50% employer match about $54,230 at 4% or $36,153 at 6%; with 100% employer match about $40,672 at 4% or $27,115 at 6%.
Mechanical Air Systems Company 401K Plan-22$583,634$71,583$3,254iApproximate average salary by contribution assumption: employee only about $81,344 at 4% or $54,230 at 6%; with 50% employer match about $54,230 at 4% or $36,153 at 6%; with 100% employer match about $40,672 at 4% or $27,115 at 6%.
2013112$492,408$14,282$1,190iApproximate average salary by contribution assumption: employee only about $29,754 at 4% or $19,836 at 6%; with 50% employer match about $19,836 at 4% or $13,224 at 6%; with 100% employer match about $14,877 at 4% or $9,918 at 6%.
Mechanical Air Systems Company 401K Plan-12$492,408$14,282$1,190iApproximate average salary by contribution assumption: employee only about $29,754 at 4% or $19,836 at 6%; with 50% employer match about $19,836 at 4% or $13,224 at 6%; with 100% employer match about $14,877 at 4% or $9,918 at 6%.
2012114$498,609$14,035$1,003iApproximate average salary by contribution assumption: employee only about $25,063 at 4% or $16,708 at 6%; with 50% employer match about $16,708 at 4% or $11,139 at 6%; with 100% employer match about $12,531 at 4% or $8,354 at 6%.
Mechanical Air Systems Company 401K Plan-14$498,609$14,035$1,003iApproximate average salary by contribution assumption: employee only about $25,063 at 4% or $16,708 at 6%; with 50% employer match about $16,708 at 4% or $11,139 at 6%; with 100% employer match about $12,531 at 4% or $8,354 at 6%.
2011118$508,708$17,335$963iApproximate average salary by contribution assumption: employee only about $24,076 at 4% or $16,051 at 6%; with 50% employer match about $16,051 at 4% or $10,701 at 6%; with 100% employer match about $12,038 at 4% or $8,025 at 6%.
Mechanical Air Systems Company 401K Plan-18$508,708$17,335$963iApproximate average salary by contribution assumption: employee only about $24,076 at 4% or $16,051 at 6%; with 50% employer match about $16,051 at 4% or $10,701 at 6%; with 100% employer match about $12,038 at 4% or $8,025 at 6%.
2010120$518,315$22,344$1,117iApproximate average salary by contribution assumption: employee only about $27,930 at 4% or $18,620 at 6%; with 50% employer match about $18,620 at 4% or $12,413 at 6%; with 100% employer match about $13,965 at 4% or $9,310 at 6%.
Mechanical Air Systems Company 401K Plan-20$518,315$22,344$1,117iApproximate average salary by contribution assumption: employee only about $27,930 at 4% or $18,620 at 6%; with 50% employer match about $18,620 at 4% or $12,413 at 6%; with 100% employer match about $13,965 at 4% or $9,310 at 6%.
2009120$440,929$23,781$1,189iApproximate average salary by contribution assumption: employee only about $29,726 at 4% or $19,818 at 6%; with 50% employer match about $19,818 at 4% or $13,212 at 6%; with 100% employer match about $14,863 at 4% or $9,909 at 6%.
Mechanical Air Systems Company 401K Plan-20$440,929$23,781$1,189iApproximate average salary by contribution assumption: employee only about $29,726 at 4% or $19,818 at 6%; with 50% employer match about $19,818 at 4% or $13,212 at 6%; with 100% employer match about $14,863 at 4% or $9,909 at 6%.
2008120$364,206$57,450$2,873iApproximate average salary by contribution assumption: employee only about $71,813 at 4% or $47,875 at 6%; with 50% employer match about $47,875 at 4% or $31,917 at 6%; with 100% employer match about $35,906 at 4% or $23,938 at 6%.
Mechanical Air Systems Company 401K Plan-20$364,206$57,450$2,873iApproximate average salary by contribution assumption: employee only about $71,813 at 4% or $47,875 at 6%; with 50% employer match about $47,875 at 4% or $31,917 at 6%; with 100% employer match about $35,906 at 4% or $23,938 at 6%.
2007220$515,957$84,766$4,238iApproximate average salary by contribution assumption: employee only about $105,958 at 4% or $70,638 at 6%; with 50% employer match about $70,638 at 4% or $47,092 at 6%; with 100% employer match about $52,979 at 4% or $35,319 at 6%.
Mechanical Air Systems Company 401K Plan-20$515,957$32,184$1,609iApproximate average salary by contribution assumption: employee only about $40,230 at 4% or $26,820 at 6%; with 50% employer match about $26,820 at 4% or $17,880 at 6%; with 100% employer match about $20,115 at 4% or $13,410 at 6%.
Mechanical Air Systems Company Defined Benefit Plan-0-$52,582-
2006220$1,407,893$176,098$8,805iApproximate average salary by contribution assumption: employee only about $220,123 at 4% or $146,748 at 6%; with 50% employer match about $146,748 at 4% or $97,832 at 6%; with 100% employer match about $110,061 at 4% or $73,374 at 6%.
Mechanical Air Systems Company Defined Benefit Plan-8$880,653$141,000$17,625iApproximate average salary by contribution assumption: employee only about $440,625 at 4% or $293,750 at 6%; with 50% employer match about $293,750 at 4% or $195,833 at 6%; with 100% employer match about $220,313 at 4% or $146,875 at 6%.
Mechanical Air Systems Company 401K Plan-20$527,240$35,098$1,755iApproximate average salary by contribution assumption: employee only about $43,873 at 4% or $29,248 at 6%; with 50% employer match about $29,248 at 4% or $19,499 at 6%; with 100% employer match about $21,936 at 4% or $14,624 at 6%.
2005221$1,212,349$243,048$11,574iApproximate average salary by contribution assumption: employee only about $289,343 at 4% or $192,895 at 6%; with 50% employer match about $192,895 at 4% or $128,597 at 6%; with 100% employer match about $144,671 at 4% or $96,448 at 6%.
Mechanical Air Systems Company Defined Benefit Plan-9$740,671$200,000$22,222iApproximate average salary by contribution assumption: employee only about $555,556 at 4% or $370,370 at 6%; with 50% employer match about $370,370 at 4% or $246,914 at 6%; with 100% employer match about $277,778 at 4% or $185,185 at 6%.
Mechanical Air Systems Company 401K Plan-21$471,678$43,048$2,050iApproximate average salary by contribution assumption: employee only about $51,248 at 4% or $34,165 at 6%; with 50% employer match about $34,165 at 4% or $22,777 at 6%; with 100% employer match about $25,624 at 4% or $17,083 at 6%.
2004220$401,465$26,769$1,338iApproximate average salary by contribution assumption: employee only about $33,461 at 4% or $22,308 at 6%; with 50% employer match about $22,308 at 4% or $14,872 at 6%; with 100% employer match about $16,731 at 4% or $11,154 at 6%.
Mechanical Air Systems Company 401K Plan-20$401,465$26,769$1,338iApproximate average salary by contribution assumption: employee only about $33,461 at 4% or $22,308 at 6%; with 50% employer match about $22,308 at 4% or $14,872 at 6%; with 100% employer match about $16,731 at 4% or $11,154 at 6%.
Mechanical Air Systems Company Defined Benefit Plan-10---
2003218$918,772$63,459$3,526iApproximate average salary by contribution assumption: employee only about $88,138 at 4% or $58,758 at 6%; with 50% employer match about $58,758 at 4% or $39,172 at 6%; with 100% employer match about $44,069 at 4% or $29,379 at 6%.
Mechanical Air Systems Company Defined Benefit Plan-10$557,366$34,201$3,420iApproximate average salary by contribution assumption: employee only about $85,503 at 4% or $57,002 at 6%; with 50% employer match about $57,002 at 4% or $38,001 at 6%; with 100% employer match about $42,751 at 4% or $28,501 at 6%.
Mechanical Air Systems Company 401K Plan-18$361,406$29,258$1,625iApproximate average salary by contribution assumption: employee only about $40,636 at 4% or $27,091 at 6%; with 50% employer match about $27,091 at 4% or $18,060 at 6%; with 100% employer match about $20,318 at 4% or $13,545 at 6%.
2002220$295,423$53,756$2,688iApproximate average salary by contribution assumption: employee only about $67,195 at 4% or $44,797 at 6%; with 50% employer match about $44,797 at 4% or $29,864 at 6%; with 100% employer match about $33,598 at 4% or $22,398 at 6%.
Mechanical Air Systems Company 401K Plan-20$295,423$53,756$2,688iApproximate average salary by contribution assumption: employee only about $67,195 at 4% or $44,797 at 6%; with 50% employer match about $44,797 at 4% or $29,864 at 6%; with 100% employer match about $33,598 at 4% or $22,398 at 6%.
Mechanical Air Systems Company Defined Benefit Plan-11---
2001221$0$0-
Mechanical Air Systems Company 401K Plan-21---
Mechanical Air Systems Company Defined Benefit Plan-8---
2000221$351,305$81,859$3,898iApproximate average salary by contribution assumption: employee only about $97,451 at 4% or $64,967 at 6%; with 50% employer match about $64,967 at 4% or $43,312 at 6%; with 100% employer match about $48,726 at 4% or $32,484 at 6%.
Mechanical Air Systems Company 401K Plan-21$351,305$81,859$3,898iApproximate average salary by contribution assumption: employee only about $97,451 at 4% or $64,967 at 6%; with 50% employer match about $64,967 at 4% or $43,312 at 6%; with 100% employer match about $48,726 at 4% or $32,484 at 6%.
Mechanical Air Systems Company Defined Benefit Plan-9---
1999224$434,681$156,627$6,526iApproximate average salary by contribution assumption: employee only about $163,153 at 4% or $108,769 at 6%; with 50% employer match about $108,769 at 4% or $72,513 at 6%; with 100% employer match about $81,577 at 4% or $54,384 at 6%.
Mechanical Air Systems Company 401K Plan-24$332,135$71,208$2,967iApproximate average salary by contribution assumption: employee only about $74,175 at 4% or $49,450 at 6%; with 50% employer match about $49,450 at 4% or $32,967 at 6%; with 100% employer match about $37,088 at 4% or $24,725 at 6%.
Mechanical Air Systems Company Defined Benefit Plan-11$102,546$85,419$7,765iApproximate average salary by contribution assumption: employee only about $194,134 at 4% or $129,423 at 6%; with 50% employer match about $129,423 at 4% or $86,282 at 6%; with 100% employer match about $97,067 at 4% or $64,711 at 6%.