Civic Intelligence

Thermax Insulation LLC

Plan context: Thermax Insulation 401(K) Plan

EIN 20-2336194 • Billings, MT • 19 filings • 2 plans

PO Box 30333Billings, MT 59107
Current Snapshot

Latest Year

2025

2025 Participants

2

2025 Assets

$1,703,971

2025 Contributions

$60,631

Historical Graphs

Total Assets Over Time

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

$1,703,971$851,986$0200720162025YearValue
$1,703,971Latest year 2025

Participants Over Time

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

320200720162025YearValue
2Latest 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
202512$1,703,971$60,631$30,316iApproximate average salary by contribution assumption: employee only about $757,888 at 4% or $505,258 at 6%; with 50% employer match about $505,258 at 4% or $336,839 at 6%; with 100% employer match about $378,944 at 4% or $252,629 at 6%.
Thermax Insulation 401(K) Plan-2$1,703,971$60,631$30,316iApproximate average salary by contribution assumption: employee only about $757,888 at 4% or $505,258 at 6%; with 50% employer match about $505,258 at 4% or $336,839 at 6%; with 100% employer match about $378,944 at 4% or $252,629 at 6%.
202412$1,442,708$52,010$26,005iApproximate average salary by contribution assumption: employee only about $650,125 at 4% or $433,417 at 6%; with 50% employer match about $433,417 at 4% or $288,944 at 6%; with 100% employer match about $325,063 at 4% or $216,708 at 6%.
Thermax Insulation 401(K) Plan-2$1,442,708$52,010$26,005iApproximate average salary by contribution assumption: employee only about $650,125 at 4% or $433,417 at 6%; with 50% employer match about $433,417 at 4% or $288,944 at 6%; with 100% employer match about $325,063 at 4% or $216,708 at 6%.
202312$1,247,805$18,173$9,087iApproximate average salary by contribution assumption: employee only about $227,163 at 4% or $151,442 at 6%; with 50% employer match about $151,442 at 4% or $100,961 at 6%; with 100% employer match about $113,581 at 4% or $75,721 at 6%.
Thermax Insulation 401(K) Plan-2$1,247,805$18,173$9,087iApproximate average salary by contribution assumption: employee only about $227,163 at 4% or $151,442 at 6%; with 50% employer match about $151,442 at 4% or $100,961 at 6%; with 100% employer match about $113,581 at 4% or $75,721 at 6%.
202212$1,061,473$18,900$9,450iApproximate average salary by contribution assumption: employee only about $236,250 at 4% or $157,500 at 6%; with 50% employer match about $157,500 at 4% or $105,000 at 6%; with 100% employer match about $118,125 at 4% or $78,750 at 6%.
Thermax Insulation 401(K) Plan-2$1,061,473$18,900$9,450iApproximate average salary by contribution assumption: employee only about $236,250 at 4% or $157,500 at 6%; with 50% employer match about $157,500 at 4% or $105,000 at 6%; with 100% employer match about $118,125 at 4% or $78,750 at 6%.
202112$1,305,838$18,803$9,402iApproximate average salary by contribution assumption: employee only about $235,038 at 4% or $156,692 at 6%; with 50% employer match about $156,692 at 4% or $104,461 at 6%; with 100% employer match about $117,519 at 4% or $78,346 at 6%.
Thermax Insulation 401(K) Plan-2$1,305,838$18,803$9,402iApproximate average salary by contribution assumption: employee only about $235,038 at 4% or $156,692 at 6%; with 50% employer match about $156,692 at 4% or $104,461 at 6%; with 100% employer match about $117,519 at 4% or $78,346 at 6%.
202012$1,106,327$18,803$9,402iApproximate average salary by contribution assumption: employee only about $235,038 at 4% or $156,692 at 6%; with 50% employer match about $156,692 at 4% or $104,461 at 6%; with 100% employer match about $117,519 at 4% or $78,346 at 6%.
Thermax Insulation 401(K) Plan-2$1,106,327$18,803$9,402iApproximate average salary by contribution assumption: employee only about $235,038 at 4% or $156,692 at 6%; with 50% employer match about $156,692 at 4% or $104,461 at 6%; with 100% employer match about $117,519 at 4% or $78,346 at 6%.
201912$932,626$19,264$9,632iApproximate average salary by contribution assumption: employee only about $240,800 at 4% or $160,533 at 6%; with 50% employer match about $160,533 at 4% or $107,022 at 6%; with 100% employer match about $120,400 at 4% or $80,267 at 6%.
Thermax Insulation 401(K) Plan-2$932,626$19,264$9,632iApproximate average salary by contribution assumption: employee only about $240,800 at 4% or $160,533 at 6%; with 50% employer match about $160,533 at 4% or $107,022 at 6%; with 100% employer match about $120,400 at 4% or $80,267 at 6%.
201812$724,737$53,137$26,569iApproximate average salary by contribution assumption: employee only about $664,213 at 4% or $442,808 at 6%; with 50% employer match about $442,808 at 4% or $295,206 at 6%; with 100% employer match about $332,106 at 4% or $221,404 at 6%.
Thermax Insulation 401(K) Plan-2$724,737$53,137$26,569iApproximate average salary by contribution assumption: employee only about $664,213 at 4% or $442,808 at 6%; with 50% employer match about $442,808 at 4% or $295,206 at 6%; with 100% employer match about $332,106 at 4% or $221,404 at 6%.
201712$762,856$38,900$19,450iApproximate average salary by contribution assumption: employee only about $486,250 at 4% or $324,167 at 6%; with 50% employer match about $324,167 at 4% or $216,111 at 6%; with 100% employer match about $243,125 at 4% or $162,083 at 6%.
Thermax Insulation 401(K) Plan-2$762,856$38,900$19,450iApproximate average salary by contribution assumption: employee only about $486,250 at 4% or $324,167 at 6%; with 50% employer match about $324,167 at 4% or $216,111 at 6%; with 100% employer match about $243,125 at 4% or $162,083 at 6%.
201612$596,556$18,900$9,450iApproximate average salary by contribution assumption: employee only about $236,250 at 4% or $157,500 at 6%; with 50% employer match about $157,500 at 4% or $105,000 at 6%; with 100% employer match about $118,125 at 4% or $78,750 at 6%.
Thermax Insulation 401(K) Plan-2$596,556$18,900$9,450iApproximate average salary by contribution assumption: employee only about $236,250 at 4% or $157,500 at 6%; with 50% employer match about $157,500 at 4% or $105,000 at 6%; with 100% employer match about $118,125 at 4% or $78,750 at 6%.
201512$544,763$18,900$9,450iApproximate average salary by contribution assumption: employee only about $236,250 at 4% or $157,500 at 6%; with 50% employer match about $157,500 at 4% or $105,000 at 6%; with 100% employer match about $118,125 at 4% or $78,750 at 6%.
Thermax Insulation 401(K) Plan-2$544,763$18,900$9,450iApproximate average salary by contribution assumption: employee only about $236,250 at 4% or $157,500 at 6%; with 50% employer match about $157,500 at 4% or $105,000 at 6%; with 100% employer match about $118,125 at 4% or $78,750 at 6%.
201412$536,111$18,900$9,450iApproximate average salary by contribution assumption: employee only about $236,250 at 4% or $157,500 at 6%; with 50% employer match about $157,500 at 4% or $105,000 at 6%; with 100% employer match about $118,125 at 4% or $78,750 at 6%.
Thermax Insulation 401(K) Plan-2$536,111$18,900$9,450iApproximate average salary by contribution assumption: employee only about $236,250 at 4% or $157,500 at 6%; with 50% employer match about $157,500 at 4% or $105,000 at 6%; with 100% employer match about $118,125 at 4% or $78,750 at 6%.
201312$491,281$19,264$9,632iApproximate average salary by contribution assumption: employee only about $240,800 at 4% or $160,533 at 6%; with 50% employer match about $160,533 at 4% or $107,022 at 6%; with 100% employer match about $120,400 at 4% or $80,267 at 6%.
Thermax Insulation 401(K) Plan-2$491,281$19,264$9,632iApproximate average salary by contribution assumption: employee only about $240,800 at 4% or $160,533 at 6%; with 50% employer match about $160,533 at 4% or $107,022 at 6%; with 100% employer match about $120,400 at 4% or $80,267 at 6%.
201212$368,934$18,900$9,450iApproximate average salary by contribution assumption: employee only about $236,250 at 4% or $157,500 at 6%; with 50% employer match about $157,500 at 4% or $105,000 at 6%; with 100% employer match about $118,125 at 4% or $78,750 at 6%.
Thermax Insulation 401(K) Plan-2$368,934$18,900$9,450iApproximate average salary by contribution assumption: employee only about $236,250 at 4% or $157,500 at 6%; with 50% employer match about $157,500 at 4% or $105,000 at 6%; with 100% employer match about $118,125 at 4% or $78,750 at 6%.
201112$302,402$32,372$16,186iApproximate average salary by contribution assumption: employee only about $404,650 at 4% or $269,767 at 6%; with 50% employer match about $269,767 at 4% or $179,844 at 6%; with 100% employer match about $202,325 at 4% or $134,883 at 6%.
Thermax Insulation 401(K) Plan-2$302,402$32,372$16,186iApproximate average salary by contribution assumption: employee only about $404,650 at 4% or $269,767 at 6%; with 50% employer match about $269,767 at 4% or $179,844 at 6%; with 100% employer match about $202,325 at 4% or $134,883 at 6%.
201013$441,397$49,140$16,380iApproximate average salary by contribution assumption: employee only about $409,500 at 4% or $273,000 at 6%; with 50% employer match about $273,000 at 4% or $182,000 at 6%; with 100% employer match about $204,750 at 4% or $136,500 at 6%.
Thermax Insulation 401(K) Plan-3$441,397$49,140$16,380iApproximate average salary by contribution assumption: employee only about $409,500 at 4% or $273,000 at 6%; with 50% employer match about $273,000 at 4% or $182,000 at 6%; with 100% employer match about $204,750 at 4% or $136,500 at 6%.
200913$335,708$96,390$32,130iApproximate average salary by contribution assumption: employee only about $803,250 at 4% or $535,500 at 6%; with 50% employer match about $535,500 at 4% or $357,000 at 6%; with 100% employer match about $401,625 at 4% or $267,750 at 6%.
Thermax Insulation 401(K) Plan-3$335,708$96,390$32,130iApproximate average salary by contribution assumption: employee only about $803,250 at 4% or $535,500 at 6%; with 50% employer match about $535,500 at 4% or $357,000 at 6%; with 100% employer match about $401,625 at 4% or $267,750 at 6%.
200813$171,552$106,476$35,492iApproximate average salary by contribution assumption: employee only about $887,300 at 4% or $591,533 at 6%; with 50% employer match about $591,533 at 4% or $394,356 at 6%; with 100% employer match about $443,650 at 4% or $295,767 at 6%.
Thermax Insulation 401(K) Plan-3$171,552$106,476$35,492iApproximate average salary by contribution assumption: employee only about $887,300 at 4% or $591,533 at 6%; with 50% employer match about $591,533 at 4% or $394,356 at 6%; with 100% employer match about $443,650 at 4% or $295,767 at 6%.
200713$112,993$112,993$37,664iApproximate average salary by contribution assumption: employee only about $941,608 at 4% or $627,739 at 6%; with 50% employer match about $627,739 at 4% or $418,493 at 6%; with 100% employer match about $470,804 at 4% or $313,869 at 6%.
Thermax Insulation 401(K) Plan-3$112,993$112,993$37,664iApproximate average salary by contribution assumption: employee only about $941,608 at 4% or $627,739 at 6%; with 50% employer match about $627,739 at 4% or $418,493 at 6%; with 100% employer match about $470,804 at 4% or $313,869 at 6%.