Civic Intelligence

Mountain States Environmental Services Inc.

Plan context: Mountain States Environmental Services Inc. 401(K) Plan

EIN 81-0541875 • Billings, MT • 13 filings • 1 plans

P.O. Box 50445Billings, MT 59105
Current Snapshot

Latest Year

2025

2025 Participants

5

2025 Assets

$669,365

2025 Contributions

$57,403

Historical Graphs

Total Assets Over Time

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

$2,587,035$1,293,518$0201320192025YearValue
$669,365Latest year 2025

Participants Over Time

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

530201320192025YearValue
5Latest 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
202515$669,365$57,403$11,481iApproximate average salary by contribution assumption: employee only about $287,015 at 4% or $191,343 at 6%; with 50% employer match about $191,343 at 4% or $127,562 at 6%; with 100% employer match about $143,508 at 4% or $95,672 at 6%.
Mountain States Environmental Services Inc. 401(K) Plan-5$669,365$57,403$11,481iApproximate average salary by contribution assumption: employee only about $287,015 at 4% or $191,343 at 6%; with 50% employer match about $191,343 at 4% or $127,562 at 6%; with 100% employer match about $143,508 at 4% or $95,672 at 6%.
202415$2,587,035$53,892$10,778iApproximate average salary by contribution assumption: employee only about $269,460 at 4% or $179,640 at 6%; with 50% employer match about $179,640 at 4% or $119,760 at 6%; with 100% employer match about $134,730 at 4% or $89,820 at 6%.
Mountain States Environmental Services Inc. 401(K) Plan-5$2,587,035$53,892$10,778iApproximate average salary by contribution assumption: employee only about $269,460 at 4% or $179,640 at 6%; with 50% employer match about $179,640 at 4% or $119,760 at 6%; with 100% employer match about $134,730 at 4% or $89,820 at 6%.
202315$2,253,785$49,571$9,914iApproximate average salary by contribution assumption: employee only about $247,855 at 4% or $165,237 at 6%; with 50% employer match about $165,237 at 4% or $110,158 at 6%; with 100% employer match about $123,928 at 4% or $82,618 at 6%.
Mountain States Environmental Services Inc. 401(K) Plan-5$2,253,785$49,571$9,914iApproximate average salary by contribution assumption: employee only about $247,855 at 4% or $165,237 at 6%; with 50% employer match about $165,237 at 4% or $110,158 at 6%; with 100% employer match about $123,928 at 4% or $82,618 at 6%.
202214$1,895,148$54,393$13,598iApproximate average salary by contribution assumption: employee only about $339,956 at 4% or $226,638 at 6%; with 50% employer match about $226,638 at 4% or $151,092 at 6%; with 100% employer match about $169,978 at 4% or $113,319 at 6%.
Mountain States Environmental Services Inc. 401(K) Plan-4$1,895,148$54,393$13,598iApproximate average salary by contribution assumption: employee only about $339,956 at 4% or $226,638 at 6%; with 50% employer match about $226,638 at 4% or $151,092 at 6%; with 100% employer match about $169,978 at 4% or $113,319 at 6%.
202114$2,189,885$55,921$13,980iApproximate average salary by contribution assumption: employee only about $349,506 at 4% or $233,004 at 6%; with 50% employer match about $233,004 at 4% or $155,336 at 6%; with 100% employer match about $174,753 at 4% or $116,502 at 6%.
Mountain States Environmental Services Inc. 401(K) Plan-4$2,189,885$55,921$13,980iApproximate average salary by contribution assumption: employee only about $349,506 at 4% or $233,004 at 6%; with 50% employer match about $233,004 at 4% or $155,336 at 6%; with 100% employer match about $174,753 at 4% or $116,502 at 6%.
202014$1,903,139$56,006$14,002iApproximate average salary by contribution assumption: employee only about $350,038 at 4% or $233,358 at 6%; with 50% employer match about $233,358 at 4% or $155,572 at 6%; with 100% employer match about $175,019 at 4% or $116,679 at 6%.
Mountain States Environmental Services Inc. 401(K) Plan-4$1,903,139$56,006$14,002iApproximate average salary by contribution assumption: employee only about $350,038 at 4% or $233,358 at 6%; with 50% employer match about $233,358 at 4% or $155,572 at 6%; with 100% employer match about $175,019 at 4% or $116,679 at 6%.
201914$1,666,601$85,502$21,376iApproximate average salary by contribution assumption: employee only about $534,388 at 4% or $356,258 at 6%; with 50% employer match about $356,258 at 4% or $237,506 at 6%; with 100% employer match about $267,194 at 4% or $178,129 at 6%.
Mountain States Environmental Services Inc. 401(K) Plan-4$1,666,601$85,502$21,376iApproximate average salary by contribution assumption: employee only about $534,388 at 4% or $356,258 at 6%; with 50% employer match about $356,258 at 4% or $237,506 at 6%; with 100% employer match about $267,194 at 4% or $178,129 at 6%.
201814$1,342,989$81,746$20,437iApproximate average salary by contribution assumption: employee only about $510,913 at 4% or $340,608 at 6%; with 50% employer match about $340,608 at 4% or $227,072 at 6%; with 100% employer match about $255,456 at 4% or $170,304 at 6%.
Mountain States Environmental Services Inc. 401(K) Plan-4$1,342,989$81,746$20,437iApproximate average salary by contribution assumption: employee only about $510,913 at 4% or $340,608 at 6%; with 50% employer match about $340,608 at 4% or $227,072 at 6%; with 100% employer match about $255,456 at 4% or $170,304 at 6%.
201714$1,341,876$70,749$17,687iApproximate average salary by contribution assumption: employee only about $442,181 at 4% or $294,788 at 6%; with 50% employer match about $294,788 at 4% or $196,525 at 6%; with 100% employer match about $221,091 at 4% or $147,394 at 6%.
Mountain States Environmental Services Inc. 401(K) Plan-4$1,341,876$70,749$17,687iApproximate average salary by contribution assumption: employee only about $442,181 at 4% or $294,788 at 6%; with 50% employer match about $294,788 at 4% or $196,525 at 6%; with 100% employer match about $221,091 at 4% or $147,394 at 6%.
201614$1,105,027$78,612$19,653iApproximate average salary by contribution assumption: employee only about $491,325 at 4% or $327,550 at 6%; with 50% employer match about $327,550 at 4% or $218,367 at 6%; with 100% employer match about $245,663 at 4% or $163,775 at 6%.
Mountain States Environmental Services Inc. 401(K) Plan-4$1,105,027$78,612$19,653iApproximate average salary by contribution assumption: employee only about $491,325 at 4% or $327,550 at 6%; with 50% employer match about $327,550 at 4% or $218,367 at 6%; with 100% employer match about $245,663 at 4% or $163,775 at 6%.
201514$951,862$99,266$24,817iApproximate average salary by contribution assumption: employee only about $620,413 at 4% or $413,608 at 6%; with 50% employer match about $413,608 at 4% or $275,739 at 6%; with 100% employer match about $310,206 at 4% or $206,804 at 6%.
Mountain States Environmental Services Inc. 401(K) Plan-4$951,862$99,266$24,817iApproximate average salary by contribution assumption: employee only about $620,413 at 4% or $413,608 at 6%; with 50% employer match about $413,608 at 4% or $275,739 at 6%; with 100% employer match about $310,206 at 4% or $206,804 at 6%.
201414$859,248$92,065$23,016iApproximate average salary by contribution assumption: employee only about $575,406 at 4% or $383,604 at 6%; with 50% employer match about $383,604 at 4% or $255,736 at 6%; with 100% employer match about $287,703 at 4% or $191,802 at 6%.
Mountain States Environmental Services Inc. 401(K) Plan-4$859,248$92,065$23,016iApproximate average salary by contribution assumption: employee only about $575,406 at 4% or $383,604 at 6%; with 50% employer match about $383,604 at 4% or $255,736 at 6%; with 100% employer match about $287,703 at 4% or $191,802 at 6%.
201313$734,643$75,274$25,091iApproximate average salary by contribution assumption: employee only about $627,283 at 4% or $418,189 at 6%; with 50% employer match about $418,189 at 4% or $278,793 at 6%; with 100% employer match about $313,642 at 4% or $209,094 at 6%.
Mountain States Environmental Services Inc. 401(K) Plan-3$734,643$75,274$25,091iApproximate average salary by contribution assumption: employee only about $627,283 at 4% or $418,189 at 6%; with 50% employer match about $418,189 at 4% or $278,793 at 6%; with 100% employer match about $313,642 at 4% or $209,094 at 6%.