Civic Intelligence

Mainline Information Systems, Inc.

Plan context: Mainline Information Systems 401(K) Plan

EIN 59-2960721 • 51 filings • 7 plans

Current Snapshot

Latest Year

2025

2025 Participants

402

2025 Assets

$123,733,348

2025 Contributions

$9,660,898

Historical Graphs

Total Assets Over Time

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

$123,733,348$61,866,674$0200120132024YearValue
$123,733,348Latest year 2024

Participants Over Time

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

7043520200020132025YearValue
402Latest 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
20251402$0$0-
Mainline Information Systems Inc. Premium Only Plan-402---
20242449$123,733,348$9,660,898$21,516iApproximate average salary by contribution assumption: employee only about $537,912 at 4% or $358,608 at 6%; with 50% employer match about $358,608 at 4% or $239,072 at 6%; with 100% employer match about $268,956 at 4% or $179,304 at 6%.
Mainline Information Systems 401(K) Plan-449$123,733,348$9,660,898$21,516iApproximate average salary by contribution assumption: employee only about $537,912 at 4% or $358,608 at 6%; with 50% employer match about $358,608 at 4% or $239,072 at 6%; with 100% employer match about $268,956 at 4% or $179,304 at 6%.
Mainline Information Systems Inc. Premium Only Plan-443---
20232375$109,400,038$7,126,351$19,004iApproximate average salary by contribution assumption: employee only about $475,090 at 4% or $316,727 at 6%; with 50% employer match about $316,727 at 4% or $211,151 at 6%; with 100% employer match about $237,545 at 4% or $158,363 at 6%.
Mainline Information Systems 401(K) Plan-375$109,400,038$7,126,351$19,004iApproximate average salary by contribution assumption: employee only about $475,090 at 4% or $316,727 at 6%; with 50% employer match about $316,727 at 4% or $211,151 at 6%; with 100% employer match about $237,545 at 4% or $158,363 at 6%.
Mainline Information Systems Inc. Premium Only Plan-368---
20222349$93,412,945$6,748,637$19,337iApproximate average salary by contribution assumption: employee only about $483,427 at 4% or $322,284 at 6%; with 50% employer match about $322,284 at 4% or $214,856 at 6%; with 100% employer match about $241,713 at 4% or $161,142 at 6%.
Mainline Information Systems 401(K) Plan-349$93,412,945$6,748,637$19,337iApproximate average salary by contribution assumption: employee only about $483,427 at 4% or $322,284 at 6%; with 50% employer match about $322,284 at 4% or $214,856 at 6%; with 100% employer match about $241,713 at 4% or $161,142 at 6%.
Mainline Information Systems Inc. Premium Only Plan-337---
20212367$116,102,573$6,206,257$16,911iApproximate average salary by contribution assumption: employee only about $422,770 at 4% or $281,846 at 6%; with 50% employer match about $281,846 at 4% or $187,898 at 6%; with 100% employer match about $211,385 at 4% or $140,923 at 6%.
Mainline Information Systems 401(K) Plan-367$116,102,573$6,206,257$16,911iApproximate average salary by contribution assumption: employee only about $422,770 at 4% or $281,846 at 6%; with 50% employer match about $281,846 at 4% or $187,898 at 6%; with 100% employer match about $211,385 at 4% or $140,923 at 6%.
Mainline Information Systems Inc. Premium Only Plan-355---
20202380$106,950,018$6,426,784$16,913iApproximate average salary by contribution assumption: employee only about $422,815 at 4% or $281,876 at 6%; with 50% employer match about $281,876 at 4% or $187,918 at 6%; with 100% employer match about $211,407 at 4% or $140,938 at 6%.
Mainline Information Systems 401(K) Plan-380$106,950,018$6,426,784$16,913iApproximate average salary by contribution assumption: employee only about $422,815 at 4% or $281,876 at 6%; with 50% employer match about $281,876 at 4% or $187,918 at 6%; with 100% employer match about $211,407 at 4% or $140,938 at 6%.
Mainline Information Systems Inc. Premium Only Plan-371---
20192431$91,669,656$5,894,878$13,677iApproximate average salary by contribution assumption: employee only about $341,930 at 4% or $227,954 at 6%; with 50% employer match about $227,954 at 4% or $151,969 at 6%; with 100% employer match about $170,965 at 4% or $113,977 at 6%.
Mainline Information Systems 401(K) Plan-431$91,669,656$5,894,878$13,677iApproximate average salary by contribution assumption: employee only about $341,930 at 4% or $227,954 at 6%; with 50% employer match about $227,954 at 4% or $151,969 at 6%; with 100% employer match about $170,965 at 4% or $113,977 at 6%.
Mainline Information Systems Inc. Premium Only Plan-372---
20182432$78,207,472$6,152,496$14,242iApproximate average salary by contribution assumption: employee only about $356,047 at 4% or $237,365 at 6%; with 50% employer match about $237,365 at 4% or $158,243 at 6%; with 100% employer match about $178,024 at 4% or $118,682 at 6%.
Mainline Information Systems 401(K) Plan-432$78,207,472$6,152,496$14,242iApproximate average salary by contribution assumption: employee only about $356,047 at 4% or $237,365 at 6%; with 50% employer match about $237,365 at 4% or $158,243 at 6%; with 100% employer match about $178,024 at 4% or $118,682 at 6%.
Mainline Information Systems Inc. Premium Only Plan-375---
20172459$82,984,315$6,220,029$13,551iApproximate average salary by contribution assumption: employee only about $338,782 at 4% or $225,854 at 6%; with 50% employer match about $225,854 at 4% or $150,570 at 6%; with 100% employer match about $169,391 at 4% or $112,927 at 6%.
Mainline Information Systems 401(K) Plan-459$82,984,315$6,220,029$13,551iApproximate average salary by contribution assumption: employee only about $338,782 at 4% or $225,854 at 6%; with 50% employer match about $225,854 at 4% or $150,570 at 6%; with 100% employer match about $169,391 at 4% or $112,927 at 6%.
Mainline Information Systems Inc. Premium Only Plan-400---
20162470$70,685,058$6,257,230$13,313iApproximate average salary by contribution assumption: employee only about $332,831 at 4% or $221,888 at 6%; with 50% employer match about $221,888 at 4% or $147,925 at 6%; with 100% employer match about $166,416 at 4% or $110,944 at 6%.
Mainline Information Systems 401(K) Plan-470$70,685,058$6,257,230$13,313iApproximate average salary by contribution assumption: employee only about $332,831 at 4% or $221,888 at 6%; with 50% employer match about $221,888 at 4% or $147,925 at 6%; with 100% employer match about $166,416 at 4% or $110,944 at 6%.
Mainline Information Systems Inc. Premium Only Plan-423---
20153479$65,146,677$6,954,451$14,519iApproximate average salary by contribution assumption: employee only about $362,967 at 4% or $241,978 at 6%; with 50% employer match about $241,978 at 4% or $161,319 at 6%; with 100% employer match about $181,484 at 4% or $120,989 at 6%.
Mainline Information Systems 401(K) Plan-479$65,146,677$6,954,451$14,519iApproximate average salary by contribution assumption: employee only about $362,967 at 4% or $241,978 at 6%; with 50% employer match about $241,978 at 4% or $161,319 at 6%; with 100% employer match about $181,484 at 4% or $120,989 at 6%.
Mainline Information Systems Inc. Premium Only Plan-118---
Mainline Information Systems Inc. Premium Only Plan-458---
20142469$64,505,275$6,828,977$14,561iApproximate average salary by contribution assumption: employee only about $364,018 at 4% or $242,679 at 6%; with 50% employer match about $242,679 at 4% or $161,786 at 6%; with 100% employer match about $182,009 at 4% or $121,339 at 6%.
Mainline Information Systems 401(K) Plan-469$64,505,275$6,828,977$14,561iApproximate average salary by contribution assumption: employee only about $364,018 at 4% or $242,679 at 6%; with 50% employer match about $242,679 at 4% or $161,786 at 6%; with 100% employer match about $182,009 at 4% or $121,339 at 6%.
Mainline Information Systems Inc. Premium Only Plan-411---
20132506$59,580,791$6,902,088$13,640iApproximate average salary by contribution assumption: employee only about $341,012 at 4% or $227,342 at 6%; with 50% employer match about $227,342 at 4% or $151,561 at 6%; with 100% employer match about $170,506 at 4% or $113,671 at 6%.
Mainline Information Systems 401(K) Plan-506$59,580,791$6,902,088$13,640iApproximate average salary by contribution assumption: employee only about $341,012 at 4% or $227,342 at 6%; with 50% employer match about $227,342 at 4% or $151,561 at 6%; with 100% employer match about $170,506 at 4% or $113,671 at 6%.
Mainline Information Systems Inc. Premium Only Plan-488---
20122602$48,734,442$7,003,532$11,634iApproximate average salary by contribution assumption: employee only about $290,844 at 4% or $193,896 at 6%; with 50% employer match about $193,896 at 4% or $129,264 at 6%; with 100% employer match about $145,422 at 4% or $96,948 at 6%.
Mainline Information Systems 401(K) Plan-602$48,734,442$7,003,532$11,634iApproximate average salary by contribution assumption: employee only about $290,844 at 4% or $193,896 at 6%; with 50% employer match about $193,896 at 4% or $129,264 at 6%; with 100% employer match about $145,422 at 4% or $96,948 at 6%.
Mainline Information Systems Inc. Premium Only Plan-508---
20112580$42,042,006$6,394,320$11,025iApproximate average salary by contribution assumption: employee only about $275,617 at 4% or $183,745 at 6%; with 50% employer match about $183,745 at 4% or $122,497 at 6%; with 100% employer match about $137,809 at 4% or $91,872 at 6%.
Mainline Information Systems 401(K) Plan-580$42,042,006$6,394,320$11,025iApproximate average salary by contribution assumption: employee only about $275,617 at 4% or $183,745 at 6%; with 50% employer match about $183,745 at 4% or $122,497 at 6%; with 100% employer match about $137,809 at 4% or $91,872 at 6%.
Mainline Information Systems Inc. Premium Only Plan-541---
20102624$41,905,787$6,175,360$9,896iApproximate average salary by contribution assumption: employee only about $247,410 at 4% or $164,940 at 6%; with 50% employer match about $164,940 at 4% or $109,960 at 6%; with 100% employer match about $123,705 at 4% or $82,470 at 6%.
Mainline Information Systems 401(K) Plan-624$41,905,787$6,175,360$9,896iApproximate average salary by contribution assumption: employee only about $247,410 at 4% or $164,940 at 6%; with 50% employer match about $164,940 at 4% or $109,960 at 6%; with 100% employer match about $123,705 at 4% or $82,470 at 6%.
Mainline Information Systems Inc. Premium Only Plan-574---
20092650$33,947,223$6,821,716$10,495iApproximate average salary by contribution assumption: employee only about $262,374 at 4% or $174,916 at 6%; with 50% employer match about $174,916 at 4% or $116,611 at 6%; with 100% employer match about $131,187 at 4% or $87,458 at 6%.
Mainline Information Systems 401(K) Plan-650$33,947,223$6,821,716$10,495iApproximate average salary by contribution assumption: employee only about $262,374 at 4% or $174,916 at 6%; with 50% employer match about $174,916 at 4% or $116,611 at 6%; with 100% employer match about $131,187 at 4% or $87,458 at 6%.
Mainline Information Systems Inc. Premium Only Plan-585---
20082704$22,569,286$6,482,025$9,207iApproximate average salary by contribution assumption: employee only about $230,186 at 4% or $153,457 at 6%; with 50% employer match about $153,457 at 4% or $102,305 at 6%; with 100% employer match about $115,093 at 4% or $76,729 at 6%.
Mainline Information Systems 401(K) Plan-704$22,569,286$6,482,025$9,207iApproximate average salary by contribution assumption: employee only about $230,186 at 4% or $153,457 at 6%; with 50% employer match about $153,457 at 4% or $102,305 at 6%; with 100% employer match about $115,093 at 4% or $76,729 at 6%.
Mainline Information Systems Inc. Premium Only Plan-614---
20072534$25,967,344$5,562,954$10,418iApproximate average salary by contribution assumption: employee only about $260,438 at 4% or $173,625 at 6%; with 50% employer match about $173,625 at 4% or $115,750 at 6%; with 100% employer match about $130,219 at 4% or $86,813 at 6%.
Mainline Information Systems 401(K) Plan-534$25,967,344$5,562,954$10,418iApproximate average salary by contribution assumption: employee only about $260,438 at 4% or $173,625 at 6%; with 50% employer match about $173,625 at 4% or $115,750 at 6%; with 100% employer match about $130,219 at 4% or $86,813 at 6%.
Mainline Information Systems Inc. Premium Only Plan-520---
20062485$20,294,340$5,398,975$11,132iApproximate average salary by contribution assumption: employee only about $278,298 at 4% or $185,532 at 6%; with 50% employer match about $185,532 at 4% or $123,688 at 6%; with 100% employer match about $139,149 at 4% or $92,766 at 6%.
Mainline Information Systems 401(K) Plan-485$20,294,340$5,398,975$11,132iApproximate average salary by contribution assumption: employee only about $278,298 at 4% or $185,532 at 6%; with 50% employer match about $185,532 at 4% or $123,688 at 6%; with 100% employer match about $139,149 at 4% or $92,766 at 6%.
Mainline Information Systems Inc. Premium Only Plan-480---
20052390$13,727,901$4,182,995$10,726iApproximate average salary by contribution assumption: employee only about $268,141 at 4% or $178,760 at 6%; with 50% employer match about $178,760 at 4% or $119,174 at 6%; with 100% employer match about $134,070 at 4% or $89,380 at 6%.
Mainline Information Systems 401(K) Plan-384$13,727,901$4,182,995$10,893iApproximate average salary by contribution assumption: employee only about $272,330 at 4% or $181,554 at 6%; with 50% employer match about $181,554 at 4% or $121,036 at 6%; with 100% employer match about $136,165 at 4% or $90,777 at 6%.
Mainline Information Systems Inc. Premium Only Plan-390---
20042320$9,621,821$2,719,611$8,499iApproximate average salary by contribution assumption: employee only about $212,470 at 4% or $141,646 at 6%; with 50% employer match about $141,646 at 4% or $94,431 at 6%; with 100% employer match about $106,235 at 4% or $70,823 at 6%.
Mainline Information Systems 401(K) Plan-299$9,621,821$2,719,611$9,096iApproximate average salary by contribution assumption: employee only about $227,392 at 4% or $151,595 at 6%; with 50% employer match about $151,595 at 4% or $101,063 at 6%; with 100% employer match about $113,696 at 4% or $75,797 at 6%.
Mainline Information Systems Inc. Premium Only Plan-320---
20032336$6,782,686$2,370,652$7,056iApproximate average salary by contribution assumption: employee only about $176,388 at 4% or $117,592 at 6%; with 50% employer match about $117,592 at 4% or $78,395 at 6%; with 100% employer match about $88,194 at 4% or $58,796 at 6%.
Mainline Information Systems 401(K) Plan-314$6,782,686$2,370,652$7,550iApproximate average salary by contribution assumption: employee only about $188,746 at 4% or $125,831 at 6%; with 50% employer match about $125,831 at 4% or $83,887 at 6%; with 100% employer match about $94,373 at 4% or $62,915 at 6%.
Mainline Information Systems Inc. Premium Only Plan-336---
20022256$3,761,235$1,828,785$7,144iApproximate average salary by contribution assumption: employee only about $178,592 at 4% or $119,062 at 6%; with 50% employer match about $119,062 at 4% or $79,374 at 6%; with 100% employer match about $89,296 at 4% or $59,531 at 6%.
Mainline Information Systems 401(K) Plan-256$3,761,235$1,828,785$7,144iApproximate average salary by contribution assumption: employee only about $178,592 at 4% or $119,062 at 6%; with 50% employer match about $119,062 at 4% or $79,374 at 6%; with 100% employer match about $89,296 at 4% or $59,531 at 6%.
Mainline Information Systems Inc. Premium Only Plan-162---
20012210$2,955,796$1,596,359$7,602iApproximate average salary by contribution assumption: employee only about $190,043 at 4% or $126,695 at 6%; with 50% employer match about $126,695 at 4% or $84,463 at 6%; with 100% employer match about $95,021 at 4% or $63,348 at 6%.
Mainline Information Systems 401(K) Plan-210$2,955,796$1,596,359$7,602iApproximate average salary by contribution assumption: employee only about $190,043 at 4% or $126,695 at 6%; with 50% employer match about $126,695 at 4% or $84,463 at 6%; with 100% employer match about $95,021 at 4% or $63,348 at 6%.
Mainline Information Systems Inc. Premium Only Plan-182---
20001128$0$0-
Mainline Information Systems 401(K) Plan-128---