Civic Intelligence

Thienes Engineering

Plan context: Thienes Engineering Inc. 401(K) Plan

EIN 95-4719498 • LA Mirada, CA • 23 filings • 4 plans

14349 Firestone BlvdLA Mirada, CA 90638
Current Snapshot

Latest Year

2025

2025 Participants

70

2025 Assets

$12,960,534

2025 Contributions

$836,999

Historical Graphs

Total Assets Over Time

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

$12,960,534$6,480,267$0200320152025YearValue
$12,960,534Latest year 2025

Participants Over Time

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

94470200320142025YearValue
70Latest 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
2025170$12,960,534$836,999$11,957iApproximate average salary by contribution assumption: employee only about $298,928 at 4% or $199,285 at 6%; with 50% employer match about $199,285 at 4% or $132,857 at 6%; with 100% employer match about $149,464 at 4% or $99,643 at 6%.
Thienes Engineering Inc. 401(K) Plan-70$12,960,534$836,999$11,957iApproximate average salary by contribution assumption: employee only about $298,928 at 4% or $199,285 at 6%; with 50% employer match about $199,285 at 4% or $132,857 at 6%; with 100% employer match about $149,464 at 4% or $99,643 at 6%.
2024182$12,235,771$1,058,098$12,904iApproximate average salary by contribution assumption: employee only about $322,591 at 4% or $215,061 at 6%; with 50% employer match about $215,061 at 4% or $143,374 at 6%; with 100% employer match about $161,295 at 4% or $107,530 at 6%.
Thienes Engineering Inc. 401(K) Plan-82$12,235,771$1,058,098$12,904iApproximate average salary by contribution assumption: employee only about $322,591 at 4% or $215,061 at 6%; with 50% employer match about $215,061 at 4% or $143,374 at 6%; with 100% employer match about $161,295 at 4% or $107,530 at 6%.
2023194$11,430,050$1,088,194$11,577iApproximate average salary by contribution assumption: employee only about $289,413 at 4% or $192,942 at 6%; with 50% employer match about $192,942 at 4% or $128,628 at 6%; with 100% employer match about $144,707 at 4% or $96,471 at 6%.
Thienes Engineering Inc. 401(K) Plan-94$11,430,050$1,088,194$11,577iApproximate average salary by contribution assumption: employee only about $289,413 at 4% or $192,942 at 6%; with 50% employer match about $192,942 at 4% or $128,628 at 6%; with 100% employer match about $144,707 at 4% or $96,471 at 6%.
2022190$9,417,998$1,136,771$12,631iApproximate average salary by contribution assumption: employee only about $315,770 at 4% or $210,513 at 6%; with 50% employer match about $210,513 at 4% or $140,342 at 6%; with 100% employer match about $157,885 at 4% or $105,257 at 6%.
Thienes Engineering Inc. 401(K) Plan-90$9,417,998$1,136,771$12,631iApproximate average salary by contribution assumption: employee only about $315,770 at 4% or $210,513 at 6%; with 50% employer match about $210,513 at 4% or $140,342 at 6%; with 100% employer match about $157,885 at 4% or $105,257 at 6%.
2021192$9,609,095$1,079,079$11,729iApproximate average salary by contribution assumption: employee only about $293,228 at 4% or $195,485 at 6%; with 50% employer match about $195,485 at 4% or $130,324 at 6%; with 100% employer match about $146,614 at 4% or $97,743 at 6%.
Thienes Engineering Inc. 401(K) Plan-92$9,609,095$1,079,079$11,729iApproximate average salary by contribution assumption: employee only about $293,228 at 4% or $195,485 at 6%; with 50% employer match about $195,485 at 4% or $130,324 at 6%; with 100% employer match about $146,614 at 4% or $97,743 at 6%.
2020177$8,198,696$867,605$11,268iApproximate average salary by contribution assumption: employee only about $281,690 at 4% or $187,793 at 6%; with 50% employer match about $187,793 at 4% or $125,196 at 6%; with 100% employer match about $140,845 at 4% or $93,897 at 6%.
Thienes Engineering Inc. 401(K) Plan-77$8,198,696$867,605$11,268iApproximate average salary by contribution assumption: employee only about $281,690 at 4% or $187,793 at 6%; with 50% employer match about $187,793 at 4% or $125,196 at 6%; with 100% employer match about $140,845 at 4% or $93,897 at 6%.
2019172$6,817,855$789,370$10,963iApproximate average salary by contribution assumption: employee only about $274,087 at 4% or $182,725 at 6%; with 50% employer match about $182,725 at 4% or $121,816 at 6%; with 100% employer match about $137,043 at 4% or $91,362 at 6%.
Thienes Engineering Inc. 401(K) Plan-72$6,817,855$789,370$10,963iApproximate average salary by contribution assumption: employee only about $274,087 at 4% or $182,725 at 6%; with 50% employer match about $182,725 at 4% or $121,816 at 6%; with 100% employer match about $137,043 at 4% or $91,362 at 6%.
2018170$5,208,640$746,965$10,671iApproximate average salary by contribution assumption: employee only about $266,773 at 4% or $177,849 at 6%; with 50% employer match about $177,849 at 4% or $118,566 at 6%; with 100% employer match about $133,387 at 4% or $88,924 at 6%.
Thienes Engineering Inc. 401(K) Plan-70$5,208,640$746,965$10,671iApproximate average salary by contribution assumption: employee only about $266,773 at 4% or $177,849 at 6%; with 50% employer match about $177,849 at 4% or $118,566 at 6%; with 100% employer match about $133,387 at 4% or $88,924 at 6%.
2017166$4,905,293$630,483$9,553iApproximate average salary by contribution assumption: employee only about $238,819 at 4% or $159,213 at 6%; with 50% employer match about $159,213 at 4% or $106,142 at 6%; with 100% employer match about $119,410 at 4% or $79,606 at 6%.
Thienes Engineering Inc. 401(K) Plan-66$4,905,293$630,483$9,553iApproximate average salary by contribution assumption: employee only about $238,819 at 4% or $159,213 at 6%; with 50% employer match about $159,213 at 4% or $106,142 at 6%; with 100% employer match about $119,410 at 4% or $79,606 at 6%.
2016161$3,992,855$557,182$9,134iApproximate average salary by contribution assumption: employee only about $228,353 at 4% or $152,236 at 6%; with 50% employer match about $152,236 at 4% or $101,490 at 6%; with 100% employer match about $114,177 at 4% or $76,118 at 6%.
Thienes Engineering Inc. 401(K) Plan-61$3,992,855$557,182$9,134iApproximate average salary by contribution assumption: employee only about $228,353 at 4% or $152,236 at 6%; with 50% employer match about $152,236 at 4% or $101,490 at 6%; with 100% employer match about $114,177 at 4% or $76,118 at 6%.
2015164$3,225,918$480,315$7,505iApproximate average salary by contribution assumption: employee only about $187,623 at 4% or $125,082 at 6%; with 50% employer match about $125,082 at 4% or $83,388 at 6%; with 100% employer match about $93,812 at 4% or $62,541 at 6%.
Thienes Engineering Inc. 401(K) Plan-64$3,225,918$480,315$7,505iApproximate average salary by contribution assumption: employee only about $187,623 at 4% or $125,082 at 6%; with 50% employer match about $125,082 at 4% or $83,388 at 6%; with 100% employer match about $93,812 at 4% or $62,541 at 6%.
2014154$2,814,364$445,486$8,250iApproximate average salary by contribution assumption: employee only about $206,244 at 4% or $137,496 at 6%; with 50% employer match about $137,496 at 4% or $91,664 at 6%; with 100% employer match about $103,122 at 4% or $68,748 at 6%.
Thienes Engineering Inc. 401(K) Plan-54$2,814,364$445,486$8,250iApproximate average salary by contribution assumption: employee only about $206,244 at 4% or $137,496 at 6%; with 50% employer match about $137,496 at 4% or $91,664 at 6%; with 100% employer match about $103,122 at 4% or $68,748 at 6%.
2013148$2,328,051$251,266$5,235iApproximate average salary by contribution assumption: employee only about $130,868 at 4% or $87,245 at 6%; with 50% employer match about $87,245 at 4% or $58,163 at 6%; with 100% employer match about $65,434 at 4% or $43,623 at 6%.
Thienes Engineering Inc. 401(K) Plan-48$2,328,051$251,266$5,235iApproximate average salary by contribution assumption: employee only about $130,868 at 4% or $87,245 at 6%; with 50% employer match about $87,245 at 4% or $58,163 at 6%; with 100% employer match about $65,434 at 4% or $43,623 at 6%.
2012144$1,791,156$158,209$3,596iApproximate average salary by contribution assumption: employee only about $89,891 at 4% or $59,928 at 6%; with 50% employer match about $59,928 at 4% or $39,952 at 6%; with 100% employer match about $44,946 at 4% or $29,964 at 6%.
Thienes Engineering Inc. 401(K) Plan-44$1,791,156$158,209$3,596iApproximate average salary by contribution assumption: employee only about $89,891 at 4% or $59,928 at 6%; with 50% employer match about $59,928 at 4% or $39,952 at 6%; with 100% employer match about $44,946 at 4% or $29,964 at 6%.
2011135$1,479,868$57,254$1,636iApproximate average salary by contribution assumption: employee only about $40,896 at 4% or $27,264 at 6%; with 50% employer match about $27,264 at 4% or $18,176 at 6%; with 100% employer match about $20,448 at 4% or $13,632 at 6%.
Thienes Engineering Inc. 401(K) Plan-35$1,479,868$57,254$1,636iApproximate average salary by contribution assumption: employee only about $40,896 at 4% or $27,264 at 6%; with 50% employer match about $27,264 at 4% or $18,176 at 6%; with 100% employer match about $20,448 at 4% or $13,632 at 6%.
2010135$1,686,588$50,640$1,447iApproximate average salary by contribution assumption: employee only about $36,171 at 4% or $24,114 at 6%; with 50% employer match about $24,114 at 4% or $16,076 at 6%; with 100% employer match about $18,086 at 4% or $12,057 at 6%.
Thienes Engineering Inc. 401(K) Plan-35$1,686,588$50,640$1,447iApproximate average salary by contribution assumption: employee only about $36,171 at 4% or $24,114 at 6%; with 50% employer match about $24,114 at 4% or $16,076 at 6%; with 100% employer match about $18,086 at 4% or $12,057 at 6%.
2009126$1,517,627$147,821$5,685iApproximate average salary by contribution assumption: employee only about $142,136 at 4% or $94,757 at 6%; with 50% employer match about $94,757 at 4% or $63,171 at 6%; with 100% employer match about $71,068 at 4% or $47,379 at 6%.
Thienes Engineering Inc. 401(K) Plan-26$1,517,627$147,821$5,685iApproximate average salary by contribution assumption: employee only about $142,136 at 4% or $94,757 at 6%; with 50% employer match about $94,757 at 4% or $63,171 at 6%; with 100% employer match about $71,068 at 4% or $47,379 at 6%.
2008138$1,385,543$306,602$8,068iApproximate average salary by contribution assumption: employee only about $201,712 at 4% or $134,475 at 6%; with 50% employer match about $134,475 at 4% or $89,650 at 6%; with 100% employer match about $100,856 at 4% or $67,237 at 6%.
Thienes Engineering Inc. 401(K) Plan-38$1,385,543$306,602$8,068iApproximate average salary by contribution assumption: employee only about $201,712 at 4% or $134,475 at 6%; with 50% employer match about $134,475 at 4% or $89,650 at 6%; with 100% employer match about $100,856 at 4% or $67,237 at 6%.
2007159$0$0-
Thienes Engineering Inc. 401(K) Plan-59---
2006157$1,391,595$311,020$5,456iApproximate average salary by contribution assumption: employee only about $136,412 at 4% or $90,942 at 6%; with 50% employer match about $90,942 at 4% or $60,628 at 6%; with 100% employer match about $68,206 at 4% or $45,471 at 6%.
Thienes Engineering Inc. 401(K) Plan-57$1,391,595$311,020$5,456iApproximate average salary by contribution assumption: employee only about $136,412 at 4% or $90,942 at 6%; with 50% employer match about $90,942 at 4% or $60,628 at 6%; with 100% employer match about $68,206 at 4% or $45,471 at 6%.
2005153$1,053,161$279,860$5,280iApproximate average salary by contribution assumption: employee only about $132,009 at 4% or $88,006 at 6%; with 50% employer match about $88,006 at 4% or $58,671 at 6%; with 100% employer match about $66,005 at 4% or $44,003 at 6%.
Thienes Engineering Inc. 401(K) Plan-53$1,053,161$279,860$5,280iApproximate average salary by contribution assumption: employee only about $132,009 at 4% or $88,006 at 6%; with 50% employer match about $88,006 at 4% or $58,671 at 6%; with 100% employer match about $66,005 at 4% or $44,003 at 6%.
2004138$735,122$200,522$5,277iApproximate average salary by contribution assumption: employee only about $131,922 at 4% or $87,948 at 6%; with 50% employer match about $87,948 at 4% or $58,632 at 6%; with 100% employer match about $65,961 at 4% or $43,974 at 6%.
Thienes Engineering Inc. 401(K) Plan-38$735,122$200,522$5,277iApproximate average salary by contribution assumption: employee only about $131,922 at 4% or $87,948 at 6%; with 50% employer match about $87,948 at 4% or $58,632 at 6%; with 100% employer match about $65,961 at 4% or $43,974 at 6%.
2003139$497,920$448,244$11,493iApproximate average salary by contribution assumption: employee only about $287,336 at 4% or $191,557 at 6%; with 50% employer match about $191,557 at 4% or $127,705 at 6%; with 100% employer match about $143,668 at 4% or $95,779 at 6%.
Thienes Engineering Inc. 401(K) Plan-39$497,920$448,244$11,493iApproximate average salary by contribution assumption: employee only about $287,336 at 4% or $191,557 at 6%; with 50% employer match about $191,557 at 4% or $127,705 at 6%; with 100% employer match about $143,668 at 4% or $95,779 at 6%.