Civic Intelligence

Northern Air Systems Inc.

Plan context: Northern Air Systems Inc. 401K Plan

EIN 36-3306675 • Grayslake, IL • 27 filings • 2 plans

683 Center StreetP.O. Box 650Grayslake, IL 60030
Current Snapshot

Latest Year

2025

2025 Participants

13

2025 Assets

$2,175,656

2025 Contributions

$99,234

Historical Graphs

Total Assets Over Time

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

$2,175,656$1,087,828$0199920122025YearValue
$2,175,656Latest year 2025

Participants Over Time

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

1680199920122025YearValue
13Latest 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
2025113$2,175,656$99,234$7,633iApproximate average salary by contribution assumption: employee only about $190,835 at 4% or $127,223 at 6%; with 50% employer match about $127,223 at 4% or $84,815 at 6%; with 100% employer match about $95,417 at 4% or $63,612 at 6%.
Northern Air Systems Inc. 401K Plan-13$2,175,656$99,234$7,633iApproximate average salary by contribution assumption: employee only about $190,835 at 4% or $127,223 at 6%; with 50% employer match about $127,223 at 4% or $84,815 at 6%; with 100% employer match about $95,417 at 4% or $63,612 at 6%.
2024114$1,972,405$99,170$7,084iApproximate average salary by contribution assumption: employee only about $177,089 at 4% or $118,060 at 6%; with 50% employer match about $118,060 at 4% or $78,706 at 6%; with 100% employer match about $88,545 at 4% or $59,030 at 6%.
Northern Air Systems Inc. 401K Plan-14$1,972,405$99,170$7,084iApproximate average salary by contribution assumption: employee only about $177,089 at 4% or $118,060 at 6%; with 50% employer match about $118,060 at 4% or $78,706 at 6%; with 100% employer match about $88,545 at 4% or $59,030 at 6%.
2023116$1,644,033$103,568$6,473iApproximate average salary by contribution assumption: employee only about $161,825 at 4% or $107,883 at 6%; with 50% employer match about $107,883 at 4% or $71,922 at 6%; with 100% employer match about $80,913 at 4% or $53,942 at 6%.
Northern Air Systems Inc. 401K Plan-16$1,644,033$103,568$6,473iApproximate average salary by contribution assumption: employee only about $161,825 at 4% or $107,883 at 6%; with 50% employer match about $107,883 at 4% or $71,922 at 6%; with 100% employer match about $80,913 at 4% or $53,942 at 6%.
2022114$1,310,760$91,826$6,559iApproximate average salary by contribution assumption: employee only about $163,975 at 4% or $109,317 at 6%; with 50% employer match about $109,317 at 4% or $72,878 at 6%; with 100% employer match about $81,988 at 4% or $54,658 at 6%.
Northern Air Systems Inc. 401K Plan-14$1,310,760$91,826$6,559iApproximate average salary by contribution assumption: employee only about $163,975 at 4% or $109,317 at 6%; with 50% employer match about $109,317 at 4% or $72,878 at 6%; with 100% employer match about $81,988 at 4% or $54,658 at 6%.
2021114$1,587,993$118,056$8,433iApproximate average salary by contribution assumption: employee only about $210,814 at 4% or $140,543 at 6%; with 50% employer match about $140,543 at 4% or $93,695 at 6%; with 100% employer match about $105,407 at 4% or $70,271 at 6%.
Northern Air Systems Inc. 401K Plan-14$1,587,993$118,056$8,433iApproximate average salary by contribution assumption: employee only about $210,814 at 4% or $140,543 at 6%; with 50% employer match about $140,543 at 4% or $93,695 at 6%; with 100% employer match about $105,407 at 4% or $70,271 at 6%.
2020114$1,283,159$98,041$7,003iApproximate average salary by contribution assumption: employee only about $175,073 at 4% or $116,715 at 6%; with 50% employer match about $116,715 at 4% or $77,810 at 6%; with 100% employer match about $87,537 at 4% or $58,358 at 6%.
Northern Air Systems Inc. 401K Plan-14$1,283,159$98,041$7,003iApproximate average salary by contribution assumption: employee only about $175,073 at 4% or $116,715 at 6%; with 50% employer match about $116,715 at 4% or $77,810 at 6%; with 100% employer match about $87,537 at 4% or $58,358 at 6%.
2019114$996,318$83,856$5,990iApproximate average salary by contribution assumption: employee only about $149,743 at 4% or $99,829 at 6%; with 50% employer match about $99,829 at 4% or $66,552 at 6%; with 100% employer match about $74,871 at 4% or $49,914 at 6%.
Northern Air Systems Inc. 401K Plan-14$996,318$83,856$5,990iApproximate average salary by contribution assumption: employee only about $149,743 at 4% or $99,829 at 6%; with 50% employer match about $99,829 at 4% or $66,552 at 6%; with 100% employer match about $74,871 at 4% or $49,914 at 6%.
2018113$754,310$79,842$6,142iApproximate average salary by contribution assumption: employee only about $153,542 at 4% or $102,362 at 6%; with 50% employer match about $102,362 at 4% or $68,241 at 6%; with 100% employer match about $76,771 at 4% or $51,181 at 6%.
Northern Air Systems Inc. 401K Plan-13$754,310$79,842$6,142iApproximate average salary by contribution assumption: employee only about $153,542 at 4% or $102,362 at 6%; with 50% employer match about $102,362 at 4% or $68,241 at 6%; with 100% employer match about $76,771 at 4% or $51,181 at 6%.
2017114$722,992$77,412$5,529iApproximate average salary by contribution assumption: employee only about $138,236 at 4% or $92,157 at 6%; with 50% employer match about $92,157 at 4% or $61,438 at 6%; with 100% employer match about $69,118 at 4% or $46,079 at 6%.
Northern Air Systems Inc. 401K Plan-14$722,992$77,412$5,529iApproximate average salary by contribution assumption: employee only about $138,236 at 4% or $92,157 at 6%; with 50% employer match about $92,157 at 4% or $61,438 at 6%; with 100% employer match about $69,118 at 4% or $46,079 at 6%.
2016114$565,761$66,067$4,719iApproximate average salary by contribution assumption: employee only about $117,977 at 4% or $78,651 at 6%; with 50% employer match about $78,651 at 4% or $52,434 at 6%; with 100% employer match about $58,988 at 4% or $39,326 at 6%.
Northern Air Systems Inc. 401K Plan-14$565,761$66,067$4,719iApproximate average salary by contribution assumption: employee only about $117,977 at 4% or $78,651 at 6%; with 50% employer match about $78,651 at 4% or $52,434 at 6%; with 100% employer match about $58,988 at 4% or $39,326 at 6%.
201518$475,156$24,250$3,031iApproximate average salary by contribution assumption: employee only about $75,781 at 4% or $50,521 at 6%; with 50% employer match about $50,521 at 4% or $33,681 at 6%; with 100% employer match about $37,891 at 4% or $25,260 at 6%.
Northern Air Systems Inc. 401K Plan-8$475,156$24,250$3,031iApproximate average salary by contribution assumption: employee only about $75,781 at 4% or $50,521 at 6%; with 50% employer match about $50,521 at 4% or $33,681 at 6%; with 100% employer match about $37,891 at 4% or $25,260 at 6%.
201418$916,860$37,702$4,713iApproximate average salary by contribution assumption: employee only about $117,819 at 4% or $78,546 at 6%; with 50% employer match about $78,546 at 4% or $52,364 at 6%; with 100% employer match about $58,909 at 4% or $39,273 at 6%.
Northern Air Systems Inc. 401K Plan-8$916,860$37,702$4,713iApproximate average salary by contribution assumption: employee only about $117,819 at 4% or $78,546 at 6%; with 50% employer match about $78,546 at 4% or $52,364 at 6%; with 100% employer match about $58,909 at 4% or $39,273 at 6%.
2013110$859,681$40,613$4,061iApproximate average salary by contribution assumption: employee only about $101,533 at 4% or $67,688 at 6%; with 50% employer match about $67,688 at 4% or $45,126 at 6%; with 100% employer match about $50,766 at 4% or $33,844 at 6%.
Northern Air Systems Inc. 401K Plan-10$859,681$40,613$4,061iApproximate average salary by contribution assumption: employee only about $101,533 at 4% or $67,688 at 6%; with 50% employer match about $67,688 at 4% or $45,126 at 6%; with 100% employer match about $50,766 at 4% or $33,844 at 6%.
201219$685,528$49,209$5,468iApproximate average salary by contribution assumption: employee only about $136,692 at 4% or $91,128 at 6%; with 50% employer match about $91,128 at 4% or $60,752 at 6%; with 100% employer match about $68,346 at 4% or $45,564 at 6%.
Northern Air Systems Inc. 401K Plan-9$685,528$49,209$5,468iApproximate average salary by contribution assumption: employee only about $136,692 at 4% or $91,128 at 6%; with 50% employer match about $91,128 at 4% or $60,752 at 6%; with 100% employer match about $68,346 at 4% or $45,564 at 6%.
201119$579,268$35,915$3,991iApproximate average salary by contribution assumption: employee only about $99,764 at 4% or $66,509 at 6%; with 50% employer match about $66,509 at 4% or $44,340 at 6%; with 100% employer match about $49,882 at 4% or $33,255 at 6%.
Northern Air Systems Inc. 401K Plan-9$579,268$35,915$3,991iApproximate average salary by contribution assumption: employee only about $99,764 at 4% or $66,509 at 6%; with 50% employer match about $66,509 at 4% or $44,340 at 6%; with 100% employer match about $49,882 at 4% or $33,255 at 6%.
2010112$575,067$41,290$3,441iApproximate average salary by contribution assumption: employee only about $86,021 at 4% or $57,347 at 6%; with 50% employer match about $57,347 at 4% or $38,231 at 6%; with 100% employer match about $43,010 at 4% or $28,674 at 6%.
Northern Air Systems Inc. 401K Plan-12$575,067$41,290$3,441iApproximate average salary by contribution assumption: employee only about $86,021 at 4% or $57,347 at 6%; with 50% employer match about $57,347 at 4% or $38,231 at 6%; with 100% employer match about $43,010 at 4% or $28,674 at 6%.
2009115$491,153$45,158$3,011iApproximate average salary by contribution assumption: employee only about $75,263 at 4% or $50,176 at 6%; with 50% employer match about $50,176 at 4% or $33,450 at 6%; with 100% employer match about $37,632 at 4% or $25,088 at 6%.
Northern Air Systems Inc. 401K Plan-15$491,153$45,158$3,011iApproximate average salary by contribution assumption: employee only about $75,263 at 4% or $50,176 at 6%; with 50% employer match about $50,176 at 4% or $33,450 at 6%; with 100% employer match about $37,632 at 4% or $25,088 at 6%.
2008114$380,964$50,346$3,596iApproximate average salary by contribution assumption: employee only about $89,904 at 4% or $59,936 at 6%; with 50% employer match about $59,936 at 4% or $39,957 at 6%; with 100% employer match about $44,952 at 4% or $29,968 at 6%.
Northern Air Systems Inc. 401K Plan-14$380,964$50,346$3,596iApproximate average salary by contribution assumption: employee only about $89,904 at 4% or $59,936 at 6%; with 50% employer match about $59,936 at 4% or $39,957 at 6%; with 100% employer match about $44,952 at 4% or $29,968 at 6%.
2007114$500,371$84,015$6,001iApproximate average salary by contribution assumption: employee only about $150,027 at 4% or $100,018 at 6%; with 50% employer match about $100,018 at 4% or $66,679 at 6%; with 100% employer match about $75,013 at 4% or $50,009 at 6%.
Northern Air Systems Inc. 401K Plan-14$500,371$84,015$6,001iApproximate average salary by contribution assumption: employee only about $150,027 at 4% or $100,018 at 6%; with 50% employer match about $100,018 at 4% or $66,679 at 6%; with 100% employer match about $75,013 at 4% or $50,009 at 6%.
2006113$392,882$53,192$4,092iApproximate average salary by contribution assumption: employee only about $102,292 at 4% or $68,195 at 6%; with 50% employer match about $68,195 at 4% or $45,463 at 6%; with 100% employer match about $51,146 at 4% or $34,097 at 6%.
Northern Air Systems Inc. 401K Plan-13$392,882$53,192$4,092iApproximate average salary by contribution assumption: employee only about $102,292 at 4% or $68,195 at 6%; with 50% employer match about $68,195 at 4% or $45,463 at 6%; with 100% employer match about $51,146 at 4% or $34,097 at 6%.
2005112$310,779$55,316$4,610iApproximate average salary by contribution assumption: employee only about $115,242 at 4% or $76,828 at 6%; with 50% employer match about $76,828 at 4% or $51,219 at 6%; with 100% employer match about $57,621 at 4% or $38,414 at 6%.
Northern Air Systems Inc. 401K Plan-12$310,779$55,316$4,610iApproximate average salary by contribution assumption: employee only about $115,242 at 4% or $76,828 at 6%; with 50% employer match about $76,828 at 4% or $51,219 at 6%; with 100% employer match about $57,621 at 4% or $38,414 at 6%.
2004110$273,027$36,880$3,688iApproximate average salary by contribution assumption: employee only about $92,200 at 4% or $61,467 at 6%; with 50% employer match about $61,467 at 4% or $40,978 at 6%; with 100% employer match about $46,100 at 4% or $30,733 at 6%.
Northern Air Systems Inc. 401K Plan-10$273,027$36,880$3,688iApproximate average salary by contribution assumption: employee only about $92,200 at 4% or $61,467 at 6%; with 50% employer match about $61,467 at 4% or $40,978 at 6%; with 100% employer match about $46,100 at 4% or $30,733 at 6%.
2003111$219,438$42,510$3,865iApproximate average salary by contribution assumption: employee only about $96,614 at 4% or $64,409 at 6%; with 50% employer match about $64,409 at 4% or $42,939 at 6%; with 100% employer match about $48,307 at 4% or $32,205 at 6%.
Northern Air Systems Inc. 401K Plan-11$219,438$42,510$3,865iApproximate average salary by contribution assumption: employee only about $96,614 at 4% or $64,409 at 6%; with 50% employer match about $64,409 at 4% or $42,939 at 6%; with 100% employer match about $48,307 at 4% or $32,205 at 6%.
2002114$136,673$38,841$2,774iApproximate average salary by contribution assumption: employee only about $69,359 at 4% or $46,239 at 6%; with 50% employer match about $46,239 at 4% or $30,826 at 6%; with 100% employer match about $34,679 at 4% or $23,120 at 6%.
Northern Air Systems Inc. 401K Plan-14$136,673$38,841$2,774iApproximate average salary by contribution assumption: employee only about $69,359 at 4% or $46,239 at 6%; with 50% employer match about $46,239 at 4% or $30,826 at 6%; with 100% employer match about $34,679 at 4% or $23,120 at 6%.
2001111$130,445$33,931$3,085iApproximate average salary by contribution assumption: employee only about $77,116 at 4% or $51,411 at 6%; with 50% employer match about $51,411 at 4% or $34,274 at 6%; with 100% employer match about $38,558 at 4% or $25,705 at 6%.
Northern Air Systems Inc. 401K Plan-11$130,445$33,931$3,085iApproximate average salary by contribution assumption: employee only about $77,116 at 4% or $51,411 at 6%; with 50% employer match about $51,411 at 4% or $34,274 at 6%; with 100% employer match about $38,558 at 4% or $25,705 at 6%.
2000113$124,176$30,359$2,335iApproximate average salary by contribution assumption: employee only about $58,383 at 4% or $38,922 at 6%; with 50% employer match about $38,922 at 4% or $25,948 at 6%; with 100% employer match about $29,191 at 4% or $19,461 at 6%.
Northern Air Systems Inc. 401K Plan-13$124,176$30,359$2,335iApproximate average salary by contribution assumption: employee only about $58,383 at 4% or $38,922 at 6%; with 50% employer match about $38,922 at 4% or $25,948 at 6%; with 100% employer match about $29,191 at 4% or $19,461 at 6%.
1999111$112,511$32,078$2,916iApproximate average salary by contribution assumption: employee only about $72,905 at 4% or $48,603 at 6%; with 50% employer match about $48,603 at 4% or $32,402 at 6%; with 100% employer match about $36,452 at 4% or $24,302 at 6%.
Northern Air Systems Inc. 401K Plan-11$112,511$32,078$2,916iApproximate average salary by contribution assumption: employee only about $72,905 at 4% or $48,603 at 6%; with 50% employer match about $48,603 at 4% or $32,402 at 6%; with 100% employer match about $36,452 at 4% or $24,302 at 6%.