Civic Intelligence

Eos Systems Inc

Plan context: Eos Systems 401(K) Plan

EIN 04-3363414 • Boston, MA • 15 filings • 1 plans

101 Federal StreetSuite 1900Boston, MA 02110
Current Snapshot

Latest Year

2025

2025 Participants

8

2025 Assets

$1,998,508

2025 Contributions

$208,480

Historical Graphs

Total Assets Over Time

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

$2,331,861$1,165,931$0201120182025YearValue
$1,998,508Latest year 2025

Participants Over Time

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

1370201120182025YearValue
8Latest 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
202518$1,998,508$208,480$26,060iApproximate average salary by contribution assumption: employee only about $651,500 at 4% or $434,333 at 6%; with 50% employer match about $434,333 at 4% or $289,556 at 6%; with 100% employer match about $325,750 at 4% or $217,167 at 6%.
Eos Systems 401(K) Plan-8$1,998,508$208,480$26,060iApproximate average salary by contribution assumption: employee only about $651,500 at 4% or $434,333 at 6%; with 50% employer match about $434,333 at 4% or $289,556 at 6%; with 100% employer match about $325,750 at 4% or $217,167 at 6%.
2024110$2,331,861$235,431$23,543iApproximate average salary by contribution assumption: employee only about $588,578 at 4% or $392,385 at 6%; with 50% employer match about $392,385 at 4% or $261,590 at 6%; with 100% employer match about $294,289 at 4% or $196,193 at 6%.
Eos Systems 401(K) Plan-10$2,331,861$235,431$23,543iApproximate average salary by contribution assumption: employee only about $588,578 at 4% or $392,385 at 6%; with 50% employer match about $392,385 at 4% or $261,590 at 6%; with 100% employer match about $294,289 at 4% or $196,193 at 6%.
2023110$1,924,080$164,714$16,471iApproximate average salary by contribution assumption: employee only about $411,785 at 4% or $274,523 at 6%; with 50% employer match about $274,523 at 4% or $183,016 at 6%; with 100% employer match about $205,893 at 4% or $137,262 at 6%.
Eos Systems 401(K) Plan-10$1,924,080$164,714$16,471iApproximate average salary by contribution assumption: employee only about $411,785 at 4% or $274,523 at 6%; with 50% employer match about $274,523 at 4% or $183,016 at 6%; with 100% employer match about $205,893 at 4% or $137,262 at 6%.
202219$1,561,412$175,817$19,535iApproximate average salary by contribution assumption: employee only about $488,381 at 4% or $325,587 at 6%; with 50% employer match about $325,587 at 4% or $217,058 at 6%; with 100% employer match about $244,190 at 4% or $162,794 at 6%.
Eos Systems 401(K) Plan-9$1,561,412$175,817$19,535iApproximate average salary by contribution assumption: employee only about $488,381 at 4% or $325,587 at 6%; with 50% employer match about $325,587 at 4% or $217,058 at 6%; with 100% employer match about $244,190 at 4% or $162,794 at 6%.
2021111$1,698,659$171,447$15,586iApproximate average salary by contribution assumption: employee only about $389,652 at 4% or $259,768 at 6%; with 50% employer match about $259,768 at 4% or $173,179 at 6%; with 100% employer match about $194,826 at 4% or $129,884 at 6%.
Eos Systems 401(K) Plan-11$1,698,659$171,447$15,586iApproximate average salary by contribution assumption: employee only about $389,652 at 4% or $259,768 at 6%; with 50% employer match about $259,768 at 4% or $173,179 at 6%; with 100% employer match about $194,826 at 4% or $129,884 at 6%.
2020111$1,386,203$168,169$15,288iApproximate average salary by contribution assumption: employee only about $382,202 at 4% or $254,802 at 6%; with 50% employer match about $254,802 at 4% or $169,868 at 6%; with 100% employer match about $191,101 at 4% or $127,401 at 6%.
Eos Systems 401(K) Plan-11$1,386,203$168,169$15,288iApproximate average salary by contribution assumption: employee only about $382,202 at 4% or $254,802 at 6%; with 50% employer match about $254,802 at 4% or $169,868 at 6%; with 100% employer match about $191,101 at 4% or $127,401 at 6%.
2019110$1,103,905$131,763$13,176iApproximate average salary by contribution assumption: employee only about $329,408 at 4% or $219,605 at 6%; with 50% employer match about $219,605 at 4% or $146,403 at 6%; with 100% employer match about $164,704 at 4% or $109,803 at 6%.
Eos Systems 401(K) Plan-10$1,103,905$131,763$13,176iApproximate average salary by contribution assumption: employee only about $329,408 at 4% or $219,605 at 6%; with 50% employer match about $219,605 at 4% or $146,403 at 6%; with 100% employer match about $164,704 at 4% or $109,803 at 6%.
2018110$815,705$99,698$9,970iApproximate average salary by contribution assumption: employee only about $249,245 at 4% or $166,163 at 6%; with 50% employer match about $166,163 at 4% or $110,776 at 6%; with 100% employer match about $124,622 at 4% or $83,082 at 6%.
Eos Systems 401(K) Plan-10$815,705$99,698$9,970iApproximate average salary by contribution assumption: employee only about $249,245 at 4% or $166,163 at 6%; with 50% employer match about $166,163 at 4% or $110,776 at 6%; with 100% employer match about $124,622 at 4% or $83,082 at 6%.
2017110$780,174$92,941$9,294iApproximate average salary by contribution assumption: employee only about $232,353 at 4% or $154,902 at 6%; with 50% employer match about $154,902 at 4% or $103,268 at 6%; with 100% employer match about $116,176 at 4% or $77,451 at 6%.
Eos Systems 401(K) Plan-10$780,174$92,941$9,294iApproximate average salary by contribution assumption: employee only about $232,353 at 4% or $154,902 at 6%; with 50% employer match about $154,902 at 4% or $103,268 at 6%; with 100% employer match about $116,176 at 4% or $77,451 at 6%.
2016110$588,544$85,205$8,521iApproximate average salary by contribution assumption: employee only about $213,013 at 4% or $142,008 at 6%; with 50% employer match about $142,008 at 4% or $94,672 at 6%; with 100% employer match about $106,506 at 4% or $71,004 at 6%.
Eos Systems 401(K) Plan-10$588,544$85,205$8,521iApproximate average salary by contribution assumption: employee only about $213,013 at 4% or $142,008 at 6%; with 50% employer match about $142,008 at 4% or $94,672 at 6%; with 100% employer match about $106,506 at 4% or $71,004 at 6%.
2015111$479,141$81,556$7,414iApproximate average salary by contribution assumption: employee only about $185,355 at 4% or $123,570 at 6%; with 50% employer match about $123,570 at 4% or $82,380 at 6%; with 100% employer match about $92,677 at 4% or $61,785 at 6%.
Eos Systems 401(K) Plan-11$479,141$81,556$7,414iApproximate average salary by contribution assumption: employee only about $185,355 at 4% or $123,570 at 6%; with 50% employer match about $123,570 at 4% or $82,380 at 6%; with 100% employer match about $92,677 at 4% or $61,785 at 6%.
2014112$418,595$85,583$7,132iApproximate average salary by contribution assumption: employee only about $178,298 at 4% or $118,865 at 6%; with 50% employer match about $118,865 at 4% or $79,244 at 6%; with 100% employer match about $89,149 at 4% or $59,433 at 6%.
Eos Systems 401(K) Plan-12$418,595$85,583$7,132iApproximate average salary by contribution assumption: employee only about $178,298 at 4% or $118,865 at 6%; with 50% employer match about $118,865 at 4% or $79,244 at 6%; with 100% employer match about $89,149 at 4% or $59,433 at 6%.
2013113$361,742$100,933$7,764iApproximate average salary by contribution assumption: employee only about $194,102 at 4% or $129,401 at 6%; with 50% employer match about $129,401 at 4% or $86,268 at 6%; with 100% employer match about $97,051 at 4% or $64,701 at 6%.
Eos Systems 401(K) Plan-13$361,742$100,933$7,764iApproximate average salary by contribution assumption: employee only about $194,102 at 4% or $129,401 at 6%; with 50% employer match about $129,401 at 4% or $86,268 at 6%; with 100% employer match about $97,051 at 4% or $64,701 at 6%.
2012113$233,592$105,918$8,148iApproximate average salary by contribution assumption: employee only about $203,688 at 4% or $135,792 at 6%; with 50% employer match about $135,792 at 4% or $90,528 at 6%; with 100% employer match about $101,844 at 4% or $67,896 at 6%.
Eos Systems 401(K) Plan-13$233,592$105,918$8,148iApproximate average salary by contribution assumption: employee only about $203,688 at 4% or $135,792 at 6%; with 50% employer match about $135,792 at 4% or $90,528 at 6%; with 100% employer match about $101,844 at 4% or $67,896 at 6%.
2011113$111,815$116,149$8,935iApproximate average salary by contribution assumption: employee only about $223,363 at 4% or $148,909 at 6%; with 50% employer match about $148,909 at 4% or $99,273 at 6%; with 100% employer match about $111,682 at 4% or $74,454 at 6%.
Eos Systems 401(K) Plan-13$111,815$116,149$8,935iApproximate average salary by contribution assumption: employee only about $223,363 at 4% or $148,909 at 6%; with 50% employer match about $148,909 at 4% or $99,273 at 6%; with 100% employer match about $111,682 at 4% or $74,454 at 6%.