Civic Intelligence

STS Operating, Inc.

Plan context: Sunsource Savings and Investment Plan

EIN 22-3827595 • Addison, IL • 81 filings • 12 plans

2301 Windsor CourtAddison, IL 60101
Current Snapshot

Latest Year

2025

2025 Participants

2,410

2025 Assets

$167,507,483

2025 Contributions

$15,783,304

Historical Graphs

Total Assets Over Time

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

$167,507,483$83,753,742$0200220132024YearValue
$167,507,483Latest year 2024

Participants Over Time

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

2,4101,2050200220142025YearValue
2,410Latest 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
202512,410$0$0-
Sts Operating Inc. Health Protection Plan-2,410---
202431,756$167,507,483$15,783,304$8,988iApproximate average salary by contribution assumption: employee only about $224,705 at 4% or $149,804 at 6%; with 50% employer match about $149,804 at 4% or $99,869 at 6%; with 100% employer match about $112,353 at 4% or $74,902 at 6%.
Sunsource Savings and Investment Plan-1,124$167,507,483$15,783,304$14,042iApproximate average salary by contribution assumption: employee only about $351,052 at 4% or $234,035 at 6%; with 50% employer match about $234,035 at 4% or $156,023 at 6%; with 100% employer match about $175,526 at 4% or $117,017 at 6%.
Sts Operating Inc. Health Protection Plan-1,756---
Sts Operating Inc. Life, Ad & D, Short Term & Long Term Disability-1,070---
202351,623$150,960,999$9,928,223$6,117iApproximate average salary by contribution assumption: employee only about $152,930 at 4% or $101,953 at 6%; with 50% employer match about $101,953 at 4% or $67,969 at 6%; with 100% employer match about $76,465 at 4% or $50,977 at 6%.
Sunsource Savings and Investment Plan-1,040$150,960,999$9,928,223$9,546iApproximate average salary by contribution assumption: employee only about $238,659 at 4% or $159,106 at 6%; with 50% employer match about $159,106 at 4% or $106,071 at 6%; with 100% employer match about $119,330 at 4% or $79,553 at 6%.
Sts Operating Inc. Health Protection Plan-1,623---
Sts Operating Inc. Health Protection Plan-554---
Sts Operating Inc. Section 125 Cafeteria Plan-0---
Sts Operating Inc. Life, Ad & D, Short Term & Long Term Disability-652---
202231,539$122,009,326$7,185,759$4,669iApproximate average salary by contribution assumption: employee only about $116,728 at 4% or $77,818 at 6%; with 50% employer match about $77,818 at 4% or $51,879 at 6%; with 100% employer match about $58,364 at 4% or $38,909 at 6%.
Sunsource Savings and Investment Plan-712$122,009,326$7,185,759$10,092iApproximate average salary by contribution assumption: employee only about $252,309 at 4% or $168,206 at 6%; with 50% employer match about $168,206 at 4% or $112,137 at 6%; with 100% employer match about $126,154 at 4% or $84,103 at 6%.
Sts Operating Inc. Health Protection Plan-1,539---
Sts Operating Inc. Life, Ad & D, Short Term & Long Term Disability-915---
202131,609$151,406,745$6,650,729$4,133iApproximate average salary by contribution assumption: employee only about $103,336 at 4% or $68,891 at 6%; with 50% employer match about $68,891 at 4% or $45,927 at 6%; with 100% employer match about $51,668 at 4% or $34,445 at 6%.
Sunsource Savings and Investment Plan-692$151,406,745$6,650,729$9,611iApproximate average salary by contribution assumption: employee only about $240,272 at 4% or $160,181 at 6%; with 50% employer match about $160,181 at 4% or $106,788 at 6%; with 100% employer match about $120,136 at 4% or $80,091 at 6%.
Sts Operating Inc. Health Protection Plan-1,609---
Sts Operating Inc. Life, Ad & D, Short Term & Long Term Disability-878---
202031,532$138,369,169$10,210,109$6,665iApproximate average salary by contribution assumption: employee only about $166,614 at 4% or $111,076 at 6%; with 50% employer match about $111,076 at 4% or $74,051 at 6%; with 100% employer match about $83,307 at 4% or $55,538 at 6%.
Sunsource Savings and Investment Plan-706$138,369,169$10,210,109$14,462iApproximate average salary by contribution assumption: employee only about $361,548 at 4% or $241,032 at 6%; with 50% employer match about $241,032 at 4% or $160,688 at 6%; with 100% employer match about $180,774 at 4% or $120,516 at 6%.
Sts Operating Inc. Health Protection Plan-1,532---
Sts Operating Inc. Life, Ad & D, Short Term & Long Term Disability-896---
201931,746$116,944,252$9,111,200$5,218iApproximate average salary by contribution assumption: employee only about $130,458 at 4% or $86,972 at 6%; with 50% employer match about $86,972 at 4% or $57,981 at 6%; with 100% employer match about $65,229 at 4% or $43,486 at 6%.
Sunsource Savings and Investment Plan-796$116,944,252$9,111,200$11,446iApproximate average salary by contribution assumption: employee only about $286,156 at 4% or $190,771 at 6%; with 50% employer match about $190,771 at 4% or $127,180 at 6%; with 100% employer match about $143,078 at 4% or $95,385 at 6%.
Sts Operating Inc. Health Protection Plan-1,746---
Sts Operating Inc. Life, Ad & D, Short Term & Long Term Disability-1,029---
20183668$96,135,202$7,372,136$11,036iApproximate average salary by contribution assumption: employee only about $275,903 at 4% or $183,936 at 6%; with 50% employer match about $183,936 at 4% or $122,624 at 6%; with 100% employer match about $137,952 at 4% or $91,968 at 6%.
Sunsource Savings and Investment Plan-668$96,135,202$7,372,136$11,036iApproximate average salary by contribution assumption: employee only about $275,903 at 4% or $183,936 at 6%; with 50% employer match about $183,936 at 4% or $122,624 at 6%; with 100% employer match about $137,952 at 4% or $91,968 at 6%.
Sts Operating Inc. Life, Ad & D, Short Term & Long Term Disability-636---
Sts Operating Inc. Health Protection Plan-646---
20173632$99,009,123$5,226,679$8,270iApproximate average salary by contribution assumption: employee only about $206,752 at 4% or $137,834 at 6%; with 50% employer match about $137,834 at 4% or $91,890 at 6%; with 100% employer match about $103,376 at 4% or $68,917 at 6%.
Sunsource Savings and Investment Plan-632$99,009,123$5,226,679$8,270iApproximate average salary by contribution assumption: employee only about $206,752 at 4% or $137,834 at 6%; with 50% employer match about $137,834 at 4% or $91,890 at 6%; with 100% employer match about $103,376 at 4% or $68,917 at 6%.
Sts Operating Inc. Health Protection Plan-536---
Sts Operating Inc. Life, Ad & D, Short Term & Long Term Disability-611---
20163628$86,432,030$5,317,231$8,467iApproximate average salary by contribution assumption: employee only about $211,673 at 4% or $141,115 at 6%; with 50% employer match about $141,115 at 4% or $94,077 at 6%; with 100% employer match about $105,837 at 4% or $70,558 at 6%.
Sunsource Savings and Investment Plan-628$86,432,030$5,317,231$8,467iApproximate average salary by contribution assumption: employee only about $211,673 at 4% or $141,115 at 6%; with 50% employer match about $141,115 at 4% or $94,077 at 6%; with 100% employer match about $105,837 at 4% or $70,558 at 6%.
Sts Operating Inc. Life, Ad & D, Short Term & Long Term Disability-607---
Sts Operating Inc. Health Protection Plan-528---
20153679$79,595,424$5,471,902$8,059iApproximate average salary by contribution assumption: employee only about $201,469 at 4% or $134,313 at 6%; with 50% employer match about $134,313 at 4% or $89,542 at 6%; with 100% employer match about $100,735 at 4% or $67,156 at 6%.
Sunsource Savings and Investment Plan-679$79,595,424$5,471,902$8,059iApproximate average salary by contribution assumption: employee only about $201,469 at 4% or $134,313 at 6%; with 50% employer match about $134,313 at 4% or $89,542 at 6%; with 100% employer match about $100,735 at 4% or $67,156 at 6%.
Sts Operating Inc. Health Protection Plan-554---
Sts Operating Inc. Life, Ad & D, Short Term & Long Term Disability-652---
20143713$78,372,947$5,406,551$7,583iApproximate average salary by contribution assumption: employee only about $189,571 at 4% or $126,380 at 6%; with 50% employer match about $126,380 at 4% or $84,254 at 6%; with 100% employer match about $94,785 at 4% or $63,190 at 6%.
Sunsource Savings and Investment Plan-713$78,372,947$5,406,551$7,583iApproximate average salary by contribution assumption: employee only about $189,571 at 4% or $126,380 at 6%; with 50% employer match about $126,380 at 4% or $84,254 at 6%; with 100% employer match about $94,785 at 4% or $63,190 at 6%.
Sts Operating Inc. Health Protection Plan-617---
Sts Operating Inc. Life, Ad & D, Short Term & Long Term Disability-704---
20134702$71,630,593$5,994,712$8,539iApproximate average salary by contribution assumption: employee only about $213,487 at 4% or $142,325 at 6%; with 50% employer match about $142,325 at 4% or $94,883 at 6%; with 100% employer match about $106,743 at 4% or $71,162 at 6%.
Sunsource Savings and Investment Plan-702$71,630,593$5,994,712$8,539iApproximate average salary by contribution assumption: employee only about $213,487 at 4% or $142,325 at 6%; with 50% employer match about $142,325 at 4% or $94,883 at 6%; with 100% employer match about $106,743 at 4% or $71,162 at 6%.
Sts Operating Inc. Section 125 Cafeteria Plan-243---
Sts Operating Inc. Health Protection Plan-616---
Sts Operating Inc. Life, Ad & D, Short Term & Long Term Disability-686---
20124688$56,119,800$5,401,967$7,852iApproximate average salary by contribution assumption: employee only about $196,292 at 4% or $130,862 at 6%; with 50% employer match about $130,862 at 4% or $87,241 at 6%; with 100% employer match about $98,146 at 4% or $65,431 at 6%.
Sunsource Savings and Investment Plan-688$56,119,800$5,401,967$7,852iApproximate average salary by contribution assumption: employee only about $196,292 at 4% or $130,862 at 6%; with 50% employer match about $130,862 at 4% or $87,241 at 6%; with 100% employer match about $98,146 at 4% or $65,431 at 6%.
Sts Operating Inc. Section 125 Cafeteria Plan-242---
Sts Operating Inc. Health Protection Plan-596---
Sts Operating Inc. Life, Ad & D, Short Term & Long Term Disability-681---
20114615$46,765,632$3,407,990$5,541iApproximate average salary by contribution assumption: employee only about $138,536 at 4% or $92,357 at 6%; with 50% employer match about $92,357 at 4% or $61,572 at 6%; with 100% employer match about $69,268 at 4% or $46,179 at 6%.
Sunsource Savings and Investment Plan-615$46,765,632$3,407,990$5,541iApproximate average salary by contribution assumption: employee only about $138,536 at 4% or $92,357 at 6%; with 50% employer match about $92,357 at 4% or $61,572 at 6%; with 100% employer match about $69,268 at 4% or $46,179 at 6%.
Sts Operating Inc. Section 125 Cafeteria Plan-215---
Sts Operating Inc. Health Protection Plan-545---
Sts Operating Inc. Life, Ad & D, Short Term & Long Term Disability-545---
20104563$46,005,231$3,018,911$5,362iApproximate average salary by contribution assumption: employee only about $134,055 at 4% or $89,370 at 6%; with 50% employer match about $89,370 at 4% or $59,580 at 6%; with 100% employer match about $67,027 at 4% or $44,685 at 6%.
Sunsource Savings and Investment Plan-563$46,005,231$3,018,911$5,362iApproximate average salary by contribution assumption: employee only about $134,055 at 4% or $89,370 at 6%; with 50% employer match about $89,370 at 4% or $59,580 at 6%; with 100% employer match about $67,027 at 4% or $44,685 at 6%.
Sts Operating Inc. Section 125 Cafeteria Plan-229---
Sts Operating Inc. Health Protection Plan-488---
Sts Operating Inc. Life, Ad & D, Short Term & Long Term Disability-553---
20094556$40,551,931$3,064,210$5,511iApproximate average salary by contribution assumption: employee only about $137,779 at 4% or $91,853 at 6%; with 50% employer match about $91,853 at 4% or $61,235 at 6%; with 100% employer match about $68,890 at 4% or $45,926 at 6%.
Sunsource Savings and Investment Plan-556$40,551,931$3,064,210$5,511iApproximate average salary by contribution assumption: employee only about $137,779 at 4% or $91,853 at 6%; with 50% employer match about $91,853 at 4% or $61,235 at 6%; with 100% employer match about $68,890 at 4% or $45,926 at 6%.
Sts Operating Inc. Section 125 Cafeteria Plan-249---
Sts Operating Inc. Life, Ad & D, Short Term & Long Term Disability-551---
Sts Operating Inc. Health Protection Plan-517---
20084662$31,780,619$4,187,356$6,325iApproximate average salary by contribution assumption: employee only about $158,133 at 4% or $105,422 at 6%; with 50% employer match about $105,422 at 4% or $70,281 at 6%; with 100% employer match about $79,066 at 4% or $52,711 at 6%.
Sunsource Savings and Investment Plan-662$31,780,619$4,187,356$6,325iApproximate average salary by contribution assumption: employee only about $158,133 at 4% or $105,422 at 6%; with 50% employer match about $105,422 at 4% or $70,281 at 6%; with 100% employer match about $79,066 at 4% or $52,711 at 6%.
Sts Operating Inc. Section 125 Cafeteria Plan-272---
Sts Operating Inc. Health Protection Plan-592---
Sts Operating Inc. Life, Ad & D, Short Term & Long Term Disability-646---
20074659$41,627,726$4,489,262$6,812iApproximate average salary by contribution assumption: employee only about $170,306 at 4% or $113,537 at 6%; with 50% employer match about $113,537 at 4% or $75,691 at 6%; with 100% employer match about $85,153 at 4% or $56,769 at 6%.
Sunsource Savings and Investment Plan-659$41,627,726$4,489,262$6,812iApproximate average salary by contribution assumption: employee only about $170,306 at 4% or $113,537 at 6%; with 50% employer match about $113,537 at 4% or $75,691 at 6%; with 100% employer match about $85,153 at 4% or $56,769 at 6%.
Sts Operating Inc. Health Protection Plan-553---
Sts Operating Inc. Life, Ad & D, Short Term & Long Term Disability-605---
Sts Operating Inc. Section 125 Cafeteria Plan-280---
20064617$36,223,403$3,593,608$5,824iApproximate average salary by contribution assumption: employee only about $145,608 at 4% or $97,072 at 6%; with 50% employer match about $97,072 at 4% or $64,715 at 6%; with 100% employer match about $72,804 at 4% or $48,536 at 6%.
Sunsource Savings and Investment Plan-617$36,223,403$3,593,608$5,824iApproximate average salary by contribution assumption: employee only about $145,608 at 4% or $97,072 at 6%; with 50% employer match about $97,072 at 4% or $64,715 at 6%; with 100% employer match about $72,804 at 4% or $48,536 at 6%.
Sts Operating Inc. Section 125 Cafeteria Plan-256---
Sts Operating Inc. Health Protection Plan-538---
Sts Operating Inc. Life, Ad & D, Short Term & Long Term Disability-598---
20054610$30,279,903$3,189,148$5,228iApproximate average salary by contribution assumption: employee only about $130,703 at 4% or $87,135 at 6%; with 50% employer match about $87,135 at 4% or $58,090 at 6%; with 100% employer match about $65,351 at 4% or $43,568 at 6%.
Sunsource Savings and Investment Plan-610$30,279,903$3,189,148$5,228iApproximate average salary by contribution assumption: employee only about $130,703 at 4% or $87,135 at 6%; with 50% employer match about $87,135 at 4% or $58,090 at 6%; with 100% employer match about $65,351 at 4% or $43,568 at 6%.
Sts Operating Inc. Health Protection Plan-526---
Sts Operating Inc. Life, Ad & D, Short Term & Long Term Disability-585---
Sts Operating Inc. Section 125 Cafeteria Plan-196---
20044580$27,829,732$2,427,834$4,186iApproximate average salary by contribution assumption: employee only about $104,648 at 4% or $69,765 at 6%; with 50% employer match about $69,765 at 4% or $46,510 at 6%; with 100% employer match about $52,324 at 4% or $34,883 at 6%.
Sunsource Savings and Investment Plan-580$27,829,732$2,427,834$4,186iApproximate average salary by contribution assumption: employee only about $104,648 at 4% or $69,765 at 6%; with 50% employer match about $69,765 at 4% or $46,510 at 6%; with 100% employer match about $52,324 at 4% or $34,883 at 6%.
Sts Operating Inc. Life, Ad & D, Short Term & Long Term Disability-551---
Sts Operating Inc. Section 125 Cafeteria Plan-248---
Sts Operating Inc. Health Protection Plan-510---
20033587$24,785,592$7,003,240$11,931iApproximate average salary by contribution assumption: employee only about $298,264 at 4% or $198,843 at 6%; with 50% employer match about $198,843 at 4% or $132,562 at 6%; with 100% employer match about $149,132 at 4% or $99,421 at 6%.
Sunsource Savings and Investment Plan-583$24,317,519$2,556,255$4,385iApproximate average salary by contribution assumption: employee only about $109,616 at 4% or $73,078 at 6%; with 50% employer match about $73,078 at 4% or $48,718 at 6%; with 100% employer match about $54,808 at 4% or $36,539 at 6%.
Sts Operating Inc. Health Protection Plan-587$468,073$4,446,985$7,576iApproximate average salary by contribution assumption: employee only about $189,395 at 4% or $126,263 at 6%; with 50% employer match about $126,263 at 4% or $84,175 at 6%; with 100% employer match about $94,697 at 4% or $63,132 at 6%.
Sts Operating Inc. Life, Ad & D, Short Term & Long Term Disability-577---
200221,597$20,618,700$8,434,830$5,282iApproximate average salary by contribution assumption: employee only about $132,042 at 4% or $88,028 at 6%; with 50% employer match about $88,028 at 4% or $58,685 at 6%; with 100% employer match about $66,021 at 4% or $44,014 at 6%.
Sunsource Savings and Investment Plan-1,597$19,839,602$4,479,518$2,805iApproximate average salary by contribution assumption: employee only about $70,124 at 4% or $46,749 at 6%; with 50% employer match about $46,749 at 4% or $31,166 at 6%; with 100% employer match about $35,062 at 4% or $23,375 at 6%.
Sts Operating Inc. Health Protection Plan-600$779,098$3,955,312$6,592iApproximate average salary by contribution assumption: employee only about $164,805 at 4% or $109,870 at 6%; with 50% employer match about $109,870 at 4% or $73,247 at 6%; with 100% employer match about $82,402 at 4% or $54,935 at 6%.