Civic Intelligence

Mainstream Data Inc.

Plan context: Mainstream 401(K) Plan

EIN 87-0685563 • Salt Lake City, UT • 24 filings • 2 plans

375 Chippeta Way Suite BSalt Lake City, UT 84108
Current Snapshot

Latest Year

2025

2025 Participants

21

2025 Assets

$3,528,128

2025 Contributions

$215,493

Historical Graphs

Total Assets Over Time

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

$4,032,484$2,016,242$0200220142025YearValue
$3,528,128Latest year 2025

Participants Over Time

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

59300200220142025YearValue
21Latest 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
2025121$3,528,128$215,493$10,262iApproximate average salary by contribution assumption: employee only about $256,539 at 4% or $171,026 at 6%; with 50% employer match about $171,026 at 4% or $114,017 at 6%; with 100% employer match about $128,270 at 4% or $85,513 at 6%.
Mainstream 401(K) Plan-21$3,528,128$215,493$10,262iApproximate average salary by contribution assumption: employee only about $256,539 at 4% or $171,026 at 6%; with 50% employer match about $171,026 at 4% or $114,017 at 6%; with 100% employer match about $128,270 at 4% or $85,513 at 6%.
2024123$4,032,484$191,913$8,344iApproximate average salary by contribution assumption: employee only about $208,601 at 4% or $139,067 at 6%; with 50% employer match about $139,067 at 4% or $92,712 at 6%; with 100% employer match about $104,301 at 4% or $69,534 at 6%.
Mainstream 401(K) Plan-23$4,032,484$191,913$8,344iApproximate average salary by contribution assumption: employee only about $208,601 at 4% or $139,067 at 6%; with 50% employer match about $139,067 at 4% or $92,712 at 6%; with 100% employer match about $104,301 at 4% or $69,534 at 6%.
2023123$3,805,815$207,083$9,004iApproximate average salary by contribution assumption: employee only about $225,090 at 4% or $150,060 at 6%; with 50% employer match about $150,060 at 4% or $100,040 at 6%; with 100% employer match about $112,545 at 4% or $75,030 at 6%.
Mainstream 401(K) Plan-23$3,805,815$207,083$9,004iApproximate average salary by contribution assumption: employee only about $225,090 at 4% or $150,060 at 6%; with 50% employer match about $150,060 at 4% or $100,040 at 6%; with 100% employer match about $112,545 at 4% or $75,030 at 6%.
2022125$2,991,691$231,230$9,249iApproximate average salary by contribution assumption: employee only about $231,230 at 4% or $154,153 at 6%; with 50% employer match about $154,153 at 4% or $102,769 at 6%; with 100% employer match about $115,615 at 4% or $77,077 at 6%.
Mainstream 401(K) Plan-25$2,991,691$231,230$9,249iApproximate average salary by contribution assumption: employee only about $231,230 at 4% or $154,153 at 6%; with 50% employer match about $154,153 at 4% or $102,769 at 6%; with 100% employer match about $115,615 at 4% or $77,077 at 6%.
2021124$3,423,666$196,481$8,187iApproximate average salary by contribution assumption: employee only about $204,668 at 4% or $136,445 at 6%; with 50% employer match about $136,445 at 4% or $90,963 at 6%; with 100% employer match about $102,334 at 4% or $68,223 at 6%.
Mainstream 401(K) Plan-24$3,423,666$196,481$8,187iApproximate average salary by contribution assumption: employee only about $204,668 at 4% or $136,445 at 6%; with 50% employer match about $136,445 at 4% or $90,963 at 6%; with 100% employer match about $102,334 at 4% or $68,223 at 6%.
2020125$3,064,391$139,520$5,581iApproximate average salary by contribution assumption: employee only about $139,520 at 4% or $93,013 at 6%; with 50% employer match about $93,013 at 4% or $62,009 at 6%; with 100% employer match about $69,760 at 4% or $46,507 at 6%.
Mainstream 401(K) Plan-25$3,064,391$139,520$5,581iApproximate average salary by contribution assumption: employee only about $139,520 at 4% or $93,013 at 6%; with 50% employer match about $93,013 at 4% or $62,009 at 6%; with 100% employer match about $69,760 at 4% or $46,507 at 6%.
2019129$2,588,782$163,358$5,633iApproximate average salary by contribution assumption: employee only about $140,826 at 4% or $93,884 at 6%; with 50% employer match about $93,884 at 4% or $62,589 at 6%; with 100% employer match about $70,413 at 4% or $46,942 at 6%.
Mainstream 401(K) Plan-29$2,588,782$163,358$5,633iApproximate average salary by contribution assumption: employee only about $140,826 at 4% or $93,884 at 6%; with 50% employer match about $93,884 at 4% or $62,589 at 6%; with 100% employer match about $70,413 at 4% or $46,942 at 6%.
2018126$2,403,772$171,862$6,610iApproximate average salary by contribution assumption: employee only about $165,252 at 4% or $110,168 at 6%; with 50% employer match about $110,168 at 4% or $73,445 at 6%; with 100% employer match about $82,626 at 4% or $55,084 at 6%.
Mainstream 401(K) Plan-26$2,403,772$171,862$6,610iApproximate average salary by contribution assumption: employee only about $165,252 at 4% or $110,168 at 6%; with 50% employer match about $110,168 at 4% or $73,445 at 6%; with 100% employer match about $82,626 at 4% or $55,084 at 6%.
2017132$2,720,322$219,693$6,865iApproximate average salary by contribution assumption: employee only about $171,635 at 4% or $114,423 at 6%; with 50% employer match about $114,423 at 4% or $76,282 at 6%; with 100% employer match about $85,818 at 4% or $57,212 at 6%.
Mainstream 401(K) Plan-32$2,720,322$219,693$6,865iApproximate average salary by contribution assumption: employee only about $171,635 at 4% or $114,423 at 6%; with 50% employer match about $114,423 at 4% or $76,282 at 6%; with 100% employer match about $85,818 at 4% or $57,212 at 6%.
2016140$2,292,175$236,446$5,911iApproximate average salary by contribution assumption: employee only about $147,779 at 4% or $98,519 at 6%; with 50% employer match about $98,519 at 4% or $65,679 at 6%; with 100% employer match about $73,889 at 4% or $49,260 at 6%.
Mainstream 401(K) Plan-40$2,292,175$236,446$5,911iApproximate average salary by contribution assumption: employee only about $147,779 at 4% or $98,519 at 6%; with 50% employer match about $98,519 at 4% or $65,679 at 6%; with 100% employer match about $73,889 at 4% or $49,260 at 6%.
2015139$1,935,202$212,221$5,442iApproximate average salary by contribution assumption: employee only about $136,039 at 4% or $90,693 at 6%; with 50% employer match about $90,693 at 4% or $60,462 at 6%; with 100% employer match about $68,020 at 4% or $45,346 at 6%.
Mainstream 401(K) Plan-39$1,935,202$212,221$5,442iApproximate average salary by contribution assumption: employee only about $136,039 at 4% or $90,693 at 6%; with 50% employer match about $90,693 at 4% or $60,462 at 6%; with 100% employer match about $68,020 at 4% or $45,346 at 6%.
2014143$2,139,313$212,608$4,944iApproximate average salary by contribution assumption: employee only about $123,609 at 4% or $82,406 at 6%; with 50% employer match about $82,406 at 4% or $54,937 at 6%; with 100% employer match about $61,805 at 4% or $41,203 at 6%.
Mainstream 401(K) Plan-43$2,139,313$212,608$4,944iApproximate average salary by contribution assumption: employee only about $123,609 at 4% or $82,406 at 6%; with 50% employer match about $82,406 at 4% or $54,937 at 6%; with 100% employer match about $61,805 at 4% or $41,203 at 6%.
2013148$1,968,073$55,643$1,159iApproximate average salary by contribution assumption: employee only about $28,981 at 4% or $19,320 at 6%; with 50% employer match about $19,320 at 4% or $12,880 at 6%; with 100% employer match about $14,490 at 4% or $9,660 at 6%.
Mainstream 401(K) Plan-48$1,968,073$55,643$1,159iApproximate average salary by contribution assumption: employee only about $28,981 at 4% or $19,320 at 6%; with 50% employer match about $19,320 at 4% or $12,880 at 6%; with 100% employer match about $14,490 at 4% or $9,660 at 6%.
2012154$1,561,472$188,444$3,490iApproximate average salary by contribution assumption: employee only about $87,243 at 4% or $58,162 at 6%; with 50% employer match about $58,162 at 4% or $38,774 at 6%; with 100% employer match about $43,621 at 4% or $29,081 at 6%.
Mainstream 401(K) Plan-54$1,561,472$188,444$3,490iApproximate average salary by contribution assumption: employee only about $87,243 at 4% or $58,162 at 6%; with 50% employer match about $58,162 at 4% or $38,774 at 6%; with 100% employer match about $43,621 at 4% or $29,081 at 6%.
2011155$1,281,343$186,312$3,387iApproximate average salary by contribution assumption: employee only about $84,687 at 4% or $56,458 at 6%; with 50% employer match about $56,458 at 4% or $37,639 at 6%; with 100% employer match about $42,344 at 4% or $28,229 at 6%.
Mainstream 401(K) Plan-55$1,281,343$186,312$3,387iApproximate average salary by contribution assumption: employee only about $84,687 at 4% or $56,458 at 6%; with 50% employer match about $56,458 at 4% or $37,639 at 6%; with 100% employer match about $42,344 at 4% or $28,229 at 6%.
2010159$1,340,253$163,225$2,767iApproximate average salary by contribution assumption: employee only about $69,163 at 4% or $46,109 at 6%; with 50% employer match about $46,109 at 4% or $30,739 at 6%; with 100% employer match about $34,582 at 4% or $23,054 at 6%.
Mainstream 401(K) Plan-59$1,340,253$163,225$2,767iApproximate average salary by contribution assumption: employee only about $69,163 at 4% or $46,109 at 6%; with 50% employer match about $46,109 at 4% or $30,739 at 6%; with 100% employer match about $34,582 at 4% or $23,054 at 6%.
2009139$1,112,868$173,615$4,452iApproximate average salary by contribution assumption: employee only about $111,292 at 4% or $74,194 at 6%; with 50% employer match about $74,194 at 4% or $49,463 at 6%; with 100% employer match about $55,646 at 4% or $37,097 at 6%.
Mainstream 401(K) Plan-39$1,112,868$173,615$4,452iApproximate average salary by contribution assumption: employee only about $111,292 at 4% or $74,194 at 6%; with 50% employer match about $74,194 at 4% or $49,463 at 6%; with 100% employer match about $55,646 at 4% or $37,097 at 6%.
2008140$748,422$258,476$6,462iApproximate average salary by contribution assumption: employee only about $161,548 at 4% or $107,698 at 6%; with 50% employer match about $107,698 at 4% or $71,799 at 6%; with 100% employer match about $80,774 at 4% or $53,849 at 6%.
Mainstream 401(K) Plan-40$748,422$258,476$6,462iApproximate average salary by contribution assumption: employee only about $161,548 at 4% or $107,698 at 6%; with 50% employer match about $107,698 at 4% or $71,799 at 6%; with 100% employer match about $80,774 at 4% or $53,849 at 6%.
2007139$971,696$150,323$3,854iApproximate average salary by contribution assumption: employee only about $96,361 at 4% or $64,241 at 6%; with 50% employer match about $64,241 at 4% or $42,827 at 6%; with 100% employer match about $48,180 at 4% or $32,120 at 6%.
Mainstream 401(K) Plan-39$971,696$150,323$3,854iApproximate average salary by contribution assumption: employee only about $96,361 at 4% or $64,241 at 6%; with 50% employer match about $64,241 at 4% or $42,827 at 6%; with 100% employer match about $48,180 at 4% or $32,120 at 6%.
2006130$749,652$117,192$3,906iApproximate average salary by contribution assumption: employee only about $97,660 at 4% or $65,107 at 6%; with 50% employer match about $65,107 at 4% or $43,404 at 6%; with 100% employer match about $48,830 at 4% or $32,553 at 6%.
Mainstream 401(K) Plan-30$749,652$117,192$3,906iApproximate average salary by contribution assumption: employee only about $97,660 at 4% or $65,107 at 6%; with 50% employer match about $65,107 at 4% or $43,404 at 6%; with 100% employer match about $48,830 at 4% or $32,553 at 6%.
2005133$635,400$143,831$4,359iApproximate average salary by contribution assumption: employee only about $108,963 at 4% or $72,642 at 6%; with 50% employer match about $72,642 at 4% or $48,428 at 6%; with 100% employer match about $54,481 at 4% or $36,321 at 6%.
Mainstream 401(K) Plan-33$635,400$143,831$4,359iApproximate average salary by contribution assumption: employee only about $108,963 at 4% or $72,642 at 6%; with 50% employer match about $72,642 at 4% or $48,428 at 6%; with 100% employer match about $54,481 at 4% or $36,321 at 6%.
2004139$562,782$171,636$4,401iApproximate average salary by contribution assumption: employee only about $110,023 at 4% or $73,349 at 6%; with 50% employer match about $73,349 at 4% or $48,899 at 6%; with 100% employer match about $55,012 at 4% or $36,674 at 6%.
Mainstream 401(K) Plan-39$562,782$171,636$4,401iApproximate average salary by contribution assumption: employee only about $110,023 at 4% or $73,349 at 6%; with 50% employer match about $73,349 at 4% or $48,899 at 6%; with 100% employer match about $55,012 at 4% or $36,674 at 6%.
2003144$365,868$147,822$3,360iApproximate average salary by contribution assumption: employee only about $83,990 at 4% or $55,993 at 6%; with 50% employer match about $55,993 at 4% or $37,329 at 6%; with 100% employer match about $41,995 at 4% or $27,997 at 6%.
Mainstream 401(K) Plan-44$365,868$147,822$3,360iApproximate average salary by contribution assumption: employee only about $83,990 at 4% or $55,993 at 6%; with 50% employer match about $55,993 at 4% or $37,329 at 6%; with 100% employer match about $41,995 at 4% or $27,997 at 6%.
2002147$178,639$188,335$4,007iApproximate average salary by contribution assumption: employee only about $100,178 at 4% or $66,785 at 6%; with 50% employer match about $66,785 at 4% or $44,524 at 6%; with 100% employer match about $50,089 at 4% or $33,393 at 6%.
Mainstream 401(K) Plan-47$178,639$188,335$4,007iApproximate average salary by contribution assumption: employee only about $100,178 at 4% or $66,785 at 6%; with 50% employer match about $66,785 at 4% or $44,524 at 6%; with 100% employer match about $50,089 at 4% or $33,393 at 6%.