Civic Intelligence

Diesel Specialties Inc.

Plan context: Diesel Specialties 401(K) Plan

EIN 26-4356957 • Sioux City, IA • 13 filings • 1 plans

4505 Harbor DrSioux City, IA 51111-1021
Current Snapshot

Latest Year

2025

2025 Participants

15

2025 Assets

$1,224,451

2025 Contributions

$107,054

Historical Graphs

Total Assets Over Time

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

$1,224,451$612,226$0201320192025YearValue
$1,224,451Latest year 2025

Participants Over Time

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

1680201320192025YearValue
15Latest 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
2025115$1,224,451$107,054$7,137iApproximate average salary by contribution assumption: employee only about $178,423 at 4% or $118,949 at 6%; with 50% employer match about $118,949 at 4% or $79,299 at 6%; with 100% employer match about $89,212 at 4% or $59,474 at 6%.
Diesel Specialties 401(K) Plan-15$1,224,451$107,054$7,137iApproximate average salary by contribution assumption: employee only about $178,423 at 4% or $118,949 at 6%; with 50% employer match about $118,949 at 4% or $79,299 at 6%; with 100% employer match about $89,212 at 4% or $59,474 at 6%.
2024113$976,728$107,116$8,240iApproximate average salary by contribution assumption: employee only about $205,992 at 4% or $137,328 at 6%; with 50% employer match about $137,328 at 4% or $91,552 at 6%; with 100% employer match about $102,996 at 4% or $68,664 at 6%.
Diesel Specialties 401(K) Plan-13$976,728$107,116$8,240iApproximate average salary by contribution assumption: employee only about $205,992 at 4% or $137,328 at 6%; with 50% employer match about $137,328 at 4% or $91,552 at 6%; with 100% employer match about $102,996 at 4% or $68,664 at 6%.
2023116$880,021$100,411$6,276iApproximate average salary by contribution assumption: employee only about $156,892 at 4% or $104,595 at 6%; with 50% employer match about $104,595 at 4% or $69,730 at 6%; with 100% employer match about $78,446 at 4% or $52,297 at 6%.
Diesel Specialties 401(K) Plan-16$880,021$100,411$6,276iApproximate average salary by contribution assumption: employee only about $156,892 at 4% or $104,595 at 6%; with 50% employer match about $104,595 at 4% or $69,730 at 6%; with 100% employer match about $78,446 at 4% or $52,297 at 6%.
2022114$676,664$94,988$6,785iApproximate average salary by contribution assumption: employee only about $169,621 at 4% or $113,081 at 6%; with 50% employer match about $113,081 at 4% or $75,387 at 6%; with 100% employer match about $84,811 at 4% or $56,540 at 6%.
Diesel Specialties 401(K) Plan-14$676,664$94,988$6,785iApproximate average salary by contribution assumption: employee only about $169,621 at 4% or $113,081 at 6%; with 50% employer match about $113,081 at 4% or $75,387 at 6%; with 100% employer match about $84,811 at 4% or $56,540 at 6%.
2021114$714,272$75,136$5,367iApproximate average salary by contribution assumption: employee only about $134,171 at 4% or $89,448 at 6%; with 50% employer match about $89,448 at 4% or $59,632 at 6%; with 100% employer match about $67,086 at 4% or $44,724 at 6%.
Diesel Specialties 401(K) Plan-14$714,272$75,136$5,367iApproximate average salary by contribution assumption: employee only about $134,171 at 4% or $89,448 at 6%; with 50% employer match about $89,448 at 4% or $59,632 at 6%; with 100% employer match about $67,086 at 4% or $44,724 at 6%.
2020114$580,195$59,323$4,237iApproximate average salary by contribution assumption: employee only about $105,934 at 4% or $70,623 at 6%; with 50% employer match about $70,623 at 4% or $47,082 at 6%; with 100% employer match about $52,967 at 4% or $35,311 at 6%.
Diesel Specialties 401(K) Plan-14$580,195$59,323$4,237iApproximate average salary by contribution assumption: employee only about $105,934 at 4% or $70,623 at 6%; with 50% employer match about $70,623 at 4% or $47,082 at 6%; with 100% employer match about $52,967 at 4% or $35,311 at 6%.
2019111$455,394$43,562$3,960iApproximate average salary by contribution assumption: employee only about $99,005 at 4% or $66,003 at 6%; with 50% employer match about $66,003 at 4% or $44,002 at 6%; with 100% employer match about $49,502 at 4% or $33,002 at 6%.
Diesel Specialties 401(K) Plan-11$455,394$43,562$3,960iApproximate average salary by contribution assumption: employee only about $99,005 at 4% or $66,003 at 6%; with 50% employer match about $66,003 at 4% or $44,002 at 6%; with 100% employer match about $49,502 at 4% or $33,002 at 6%.
2018111$352,987$45,484$4,135iApproximate average salary by contribution assumption: employee only about $103,373 at 4% or $68,915 at 6%; with 50% employer match about $68,915 at 4% or $45,943 at 6%; with 100% employer match about $51,686 at 4% or $34,458 at 6%.
Diesel Specialties 401(K) Plan-11$352,987$45,484$4,135iApproximate average salary by contribution assumption: employee only about $103,373 at 4% or $68,915 at 6%; with 50% employer match about $68,915 at 4% or $45,943 at 6%; with 100% employer match about $51,686 at 4% or $34,458 at 6%.
2017113$429,095$75,949$5,842iApproximate average salary by contribution assumption: employee only about $146,056 at 4% or $97,371 at 6%; with 50% employer match about $97,371 at 4% or $64,914 at 6%; with 100% employer match about $73,028 at 4% or $48,685 at 6%.
Diesel Specialties 401(K) Plan-13$429,095$75,949$5,842iApproximate average salary by contribution assumption: employee only about $146,056 at 4% or $97,371 at 6%; with 50% employer match about $97,371 at 4% or $64,914 at 6%; with 100% employer match about $73,028 at 4% or $48,685 at 6%.
2016112$305,282$47,215$3,935iApproximate average salary by contribution assumption: employee only about $98,365 at 4% or $65,576 at 6%; with 50% employer match about $65,576 at 4% or $43,718 at 6%; with 100% employer match about $49,182 at 4% or $32,788 at 6%.
Diesel Specialties 401(K) Plan-12$305,282$47,215$3,935iApproximate average salary by contribution assumption: employee only about $98,365 at 4% or $65,576 at 6%; with 50% employer match about $65,576 at 4% or $43,718 at 6%; with 100% employer match about $49,182 at 4% or $32,788 at 6%.
2015112$248,053$46,350$3,863iApproximate average salary by contribution assumption: employee only about $96,563 at 4% or $64,375 at 6%; with 50% employer match about $64,375 at 4% or $42,917 at 6%; with 100% employer match about $48,281 at 4% or $32,188 at 6%.
Diesel Specialties 401(K) Plan-12$248,053$46,350$3,863iApproximate average salary by contribution assumption: employee only about $96,563 at 4% or $64,375 at 6%; with 50% employer match about $64,375 at 4% or $42,917 at 6%; with 100% employer match about $48,281 at 4% or $32,188 at 6%.
2014112$219,009$45,804$3,817iApproximate average salary by contribution assumption: employee only about $95,425 at 4% or $63,617 at 6%; with 50% employer match about $63,617 at 4% or $42,411 at 6%; with 100% employer match about $47,713 at 4% or $31,808 at 6%.
Diesel Specialties 401(K) Plan-12$219,009$45,804$3,817iApproximate average salary by contribution assumption: employee only about $95,425 at 4% or $63,617 at 6%; with 50% employer match about $63,617 at 4% or $42,411 at 6%; with 100% employer match about $47,713 at 4% or $31,808 at 6%.
2013112$165,086$153,387$12,782iApproximate average salary by contribution assumption: employee only about $319,556 at 4% or $213,038 at 6%; with 50% employer match about $213,038 at 4% or $142,025 at 6%; with 100% employer match about $159,778 at 4% or $106,519 at 6%.
Diesel Specialties 401(K) Plan-12$165,086$153,387$12,782iApproximate average salary by contribution assumption: employee only about $319,556 at 4% or $213,038 at 6%; with 50% employer match about $213,038 at 4% or $142,025 at 6%; with 100% employer match about $159,778 at 4% or $106,519 at 6%.