Civic Intelligence

Altair Engineering Inc

Plan context: Altair Salary Reduction Profit Sharing Plan

EIN 38-2591828 • Troy, MI • 52 filings • 8 plans

1820 E. Big Beaver Rd.Troy, MI 48083
Current Snapshot

Latest Year

2025

2025 Participants

920

2025 Assets

$262,809,004

2025 Contributions

$18,783,160

Historical Graphs

Total Assets Over Time

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

$262,809,004$131,404,502$0200020122024YearValue
$262,809,004Latest year 2024

Participants Over Time

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

1,4647320199920122025YearValue
920Latest 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
20251920$0$0-
Altair Engineering Inc Cafeteria Plan-920---
202421,006$262,809,004$18,783,160$18,671iApproximate average salary by contribution assumption: employee only about $466,778 at 4% or $311,186 at 6%; with 50% employer match about $311,186 at 4% or $207,457 at 6%; with 100% employer match about $233,389 at 4% or $155,593 at 6%.
Altair Salary Reduction Profit Sharing Plan-1,006$262,809,004$18,783,160$18,671iApproximate average salary by contribution assumption: employee only about $466,778 at 4% or $311,186 at 6%; with 50% employer match about $311,186 at 4% or $207,457 at 6%; with 100% employer match about $233,389 at 4% or $155,593 at 6%.
Altair Engineering Inc Cafeteria Plan-928---
202321,020$231,742,186$15,349,607$15,049iApproximate average salary by contribution assumption: employee only about $376,216 at 4% or $250,811 at 6%; with 50% employer match about $250,811 at 4% or $167,207 at 6%; with 100% employer match about $188,108 at 4% or $125,405 at 6%.
Altair Salary Reduction Profit Sharing Plan-1,020$231,742,186$15,349,607$15,049iApproximate average salary by contribution assumption: employee only about $376,216 at 4% or $250,811 at 6%; with 50% employer match about $250,811 at 4% or $167,207 at 6%; with 100% employer match about $188,108 at 4% or $125,405 at 6%.
Altair Engineering Inc Cafeteria Plan-991---
202221,023$186,254,160$14,390,427$14,067iApproximate average salary by contribution assumption: employee only about $351,672 at 4% or $234,448 at 6%; with 50% employer match about $234,448 at 4% or $156,299 at 6%; with 100% employer match about $175,836 at 4% or $117,224 at 6%.
Altair Salary Reduction Profit Sharing Plan-1,023$186,254,160$14,390,427$14,067iApproximate average salary by contribution assumption: employee only about $351,672 at 4% or $234,448 at 6%; with 50% employer match about $234,448 at 4% or $156,299 at 6%; with 100% employer match about $175,836 at 4% or $117,224 at 6%.
Altair Engineering Inc Cafeteria Plan-1,006---
202121,064$219,742,865$15,890,360$14,935iApproximate average salary by contribution assumption: employee only about $373,364 at 4% or $248,909 at 6%; with 50% employer match about $248,909 at 4% or $165,939 at 6%; with 100% employer match about $186,682 at 4% or $124,455 at 6%.
Altair Salary Reduction Profit Sharing Plan-1,064$219,742,865$15,890,360$14,935iApproximate average salary by contribution assumption: employee only about $373,364 at 4% or $248,909 at 6%; with 50% employer match about $248,909 at 4% or $165,939 at 6%; with 100% employer match about $186,682 at 4% or $124,455 at 6%.
Altair Engineering Inc Cafeteria Plan-1,037---
202021,243$185,404,792$13,316,024$10,713iApproximate average salary by contribution assumption: employee only about $267,820 at 4% or $178,547 at 6%; with 50% employer match about $178,547 at 4% or $119,031 at 6%; with 100% employer match about $133,910 at 4% or $89,273 at 6%.
Altair Salary Reduction Profit Sharing Plan-1,243$185,404,792$13,316,024$10,713iApproximate average salary by contribution assumption: employee only about $267,820 at 4% or $178,547 at 6%; with 50% employer match about $178,547 at 4% or $119,031 at 6%; with 100% employer match about $133,910 at 4% or $89,273 at 6%.
Altair Engineering Inc Cafeteria Plan-1,197---
201921,464$152,470,186$12,407,357$8,475iApproximate average salary by contribution assumption: employee only about $211,874 at 4% or $141,250 at 6%; with 50% employer match about $141,250 at 4% or $94,166 at 6%; with 100% employer match about $105,937 at 4% or $70,625 at 6%.
Altair Salary Reduction Profit Sharing Plan-1,301$152,470,186$12,407,357$9,537iApproximate average salary by contribution assumption: employee only about $238,420 at 4% or $158,946 at 6%; with 50% employer match about $158,946 at 4% or $105,964 at 6%; with 100% employer match about $119,210 at 4% or $79,473 at 6%.
Altair Engineering Inc Cafeteria Plan-1,464---
201821,203$113,731,816$10,656,237$8,858iApproximate average salary by contribution assumption: employee only about $221,451 at 4% or $147,634 at 6%; with 50% employer match about $147,634 at 4% or $98,423 at 6%; with 100% employer match about $110,726 at 4% or $73,817 at 6%.
Altair Salary Reduction Profit Sharing Plan-1,203$113,731,816$10,656,237$8,858iApproximate average salary by contribution assumption: employee only about $221,451 at 4% or $147,634 at 6%; with 50% employer match about $147,634 at 4% or $98,423 at 6%; with 100% employer match about $110,726 at 4% or $73,817 at 6%.
Altair Engineering Inc Cafeteria Plan-1,137---
201721,106$117,114,218$9,797,461$8,858iApproximate average salary by contribution assumption: employee only about $221,462 at 4% or $147,641 at 6%; with 50% employer match about $147,641 at 4% or $98,427 at 6%; with 100% employer match about $110,731 at 4% or $73,821 at 6%.
Altair Salary Reduction Profit Sharing Plan-1,106$117,114,218$9,797,461$8,858iApproximate average salary by contribution assumption: employee only about $221,462 at 4% or $147,641 at 6%; with 50% employer match about $147,641 at 4% or $98,427 at 6%; with 100% employer match about $110,731 at 4% or $73,821 at 6%.
Altair Engineering Inc Cafeteria Plan-1,043---
201621,063$95,070,497$8,590,001$8,081iApproximate average salary by contribution assumption: employee only about $202,023 at 4% or $134,682 at 6%; with 50% employer match about $134,682 at 4% or $89,788 at 6%; with 100% employer match about $101,011 at 4% or $67,341 at 6%.
Altair Salary Reduction Profit Sharing Plan-1,063$95,070,497$8,590,001$8,081iApproximate average salary by contribution assumption: employee only about $202,023 at 4% or $134,682 at 6%; with 50% employer match about $134,682 at 4% or $89,788 at 6%; with 100% employer match about $101,011 at 4% or $67,341 at 6%.
Altair Engineering Inc Cafeteria Plan-1,024---
201521,050$81,518,318$7,676,875$7,311iApproximate average salary by contribution assumption: employee only about $182,783 at 4% or $121,855 at 6%; with 50% employer match about $121,855 at 4% or $81,237 at 6%; with 100% employer match about $91,391 at 4% or $60,928 at 6%.
Altair Salary Reduction Profit Sharing Plan-1,050$81,518,318$7,676,875$7,311iApproximate average salary by contribution assumption: employee only about $182,783 at 4% or $121,855 at 6%; with 50% employer match about $121,855 at 4% or $81,237 at 6%; with 100% employer match about $91,391 at 4% or $60,928 at 6%.
Altair Engineering Inc Cafeteria Plan-1,025---
20142992$78,840,108$6,483,312$6,536iApproximate average salary by contribution assumption: employee only about $163,390 at 4% or $108,927 at 6%; with 50% employer match about $108,927 at 4% or $72,618 at 6%; with 100% employer match about $81,695 at 4% or $54,463 at 6%.
Altair Salary Reduction Profit Sharing Plan-992$78,840,108$6,483,312$6,536iApproximate average salary by contribution assumption: employee only about $163,390 at 4% or $108,927 at 6%; with 50% employer match about $108,927 at 4% or $72,618 at 6%; with 100% employer match about $81,695 at 4% or $54,463 at 6%.
Altair Engineering Inc Cafeteria Plan-827---
20132864$73,161,666$5,602,376$6,484iApproximate average salary by contribution assumption: employee only about $162,106 at 4% or $108,071 at 6%; with 50% employer match about $108,071 at 4% or $72,047 at 6%; with 100% employer match about $81,053 at 4% or $54,035 at 6%.
Altair Salary Reduction Profit Sharing Plan-864$73,161,666$5,602,376$6,484iApproximate average salary by contribution assumption: employee only about $162,106 at 4% or $108,071 at 6%; with 50% employer match about $108,071 at 4% or $72,047 at 6%; with 100% employer match about $81,053 at 4% or $54,035 at 6%.
Altair Engineering Inc Cafeteria Plan-862---
20122859$57,224,648$5,130,180$5,972iApproximate average salary by contribution assumption: employee only about $149,307 at 4% or $99,538 at 6%; with 50% employer match about $99,538 at 4% or $66,359 at 6%; with 100% employer match about $74,653 at 4% or $49,769 at 6%.
Altair Salary Reduction Profit Sharing Plan-859$57,224,648$5,130,180$5,972iApproximate average salary by contribution assumption: employee only about $149,307 at 4% or $99,538 at 6%; with 50% employer match about $99,538 at 4% or $66,359 at 6%; with 100% employer match about $74,653 at 4% or $49,769 at 6%.
Altair Engineering Inc Cafeteria Plan-669---
20112808$47,879,999$4,524,926$5,600iApproximate average salary by contribution assumption: employee only about $140,004 at 4% or $93,336 at 6%; with 50% employer match about $93,336 at 4% or $62,224 at 6%; with 100% employer match about $70,002 at 4% or $46,668 at 6%.
Altair Salary Reduction Profit Sharing Plan-808$47,879,999$4,524,926$5,600iApproximate average salary by contribution assumption: employee only about $140,004 at 4% or $93,336 at 6%; with 50% employer match about $93,336 at 4% or $62,224 at 6%; with 100% employer match about $70,002 at 4% or $46,668 at 6%.
Altair Engineering Inc Cafeteria Plan-710---
20102755$47,094,056$3,431,498$4,545iApproximate average salary by contribution assumption: employee only about $113,626 at 4% or $75,751 at 6%; with 50% employer match about $75,751 at 4% or $50,500 at 6%; with 100% employer match about $56,813 at 4% or $37,875 at 6%.
Altair Salary Reduction Profit Sharing Plan-755$47,094,056$3,431,498$4,545iApproximate average salary by contribution assumption: employee only about $113,626 at 4% or $75,751 at 6%; with 50% employer match about $75,751 at 4% or $50,500 at 6%; with 100% employer match about $56,813 at 4% or $37,875 at 6%.
Altair Engineering Inc Cafeteria Plan-603---
20092586$38,901,890$4,000,896$6,827iApproximate average salary by contribution assumption: employee only about $170,687 at 4% or $113,791 at 6%; with 50% employer match about $113,791 at 4% or $75,861 at 6%; with 100% employer match about $85,343 at 4% or $56,896 at 6%.
Altair Salary Reduction Profit Sharing Plan-586$38,901,890$4,000,896$6,827iApproximate average salary by contribution assumption: employee only about $170,687 at 4% or $113,791 at 6%; with 50% employer match about $113,791 at 4% or $75,861 at 6%; with 100% employer match about $85,343 at 4% or $56,896 at 6%.
Altair Engineering Inc Cafeteria Plan-445---
20082578$27,659,158$4,602,967$7,964iApproximate average salary by contribution assumption: employee only about $199,090 at 4% or $132,727 at 6%; with 50% employer match about $132,727 at 4% or $88,485 at 6%; with 100% employer match about $99,545 at 4% or $66,363 at 6%.
Altair Salary Reduction Profit Sharing Plan-578$27,659,158$4,602,967$7,964iApproximate average salary by contribution assumption: employee only about $199,090 at 4% or $132,727 at 6%; with 50% employer match about $132,727 at 4% or $88,485 at 6%; with 100% employer match about $99,545 at 4% or $66,363 at 6%.
Altair Engineering Inc Cafeteria Plan-496---
20072567$39,642,396$4,121,764$7,269iApproximate average salary by contribution assumption: employee only about $181,736 at 4% or $121,157 at 6%; with 50% employer match about $121,157 at 4% or $80,771 at 6%; with 100% employer match about $90,868 at 4% or $60,579 at 6%.
Altair Salary Reduction Profit Sharing Plan-567$39,642,396$4,121,764$7,269iApproximate average salary by contribution assumption: employee only about $181,736 at 4% or $121,157 at 6%; with 50% employer match about $121,157 at 4% or $80,771 at 6%; with 100% employer match about $90,868 at 4% or $60,579 at 6%.
Altair Engineering Inc Cafeteria Plan-516---
20062560$32,985,624$4,093,636$7,310iApproximate average salary by contribution assumption: employee only about $182,752 at 4% or $121,834 at 6%; with 50% employer match about $121,834 at 4% or $81,223 at 6%; with 100% employer match about $91,376 at 4% or $60,917 at 6%.
Altair Salary Reduction Profit Sharing Plan-560$32,985,624$4,093,636$7,310iApproximate average salary by contribution assumption: employee only about $182,752 at 4% or $121,834 at 6%; with 50% employer match about $121,834 at 4% or $81,223 at 6%; with 100% employer match about $91,376 at 4% or $60,917 at 6%.
Altair Engineering Inc Cafeteria Plan-494---
20052484$26,896,709$3,755,633$7,760iApproximate average salary by contribution assumption: employee only about $193,989 at 4% or $129,326 at 6%; with 50% employer match about $129,326 at 4% or $86,217 at 6%; with 100% employer match about $96,995 at 4% or $64,663 at 6%.
Altair Salary Reduction Profit Sharing Plan-484$26,896,709$3,755,633$7,760iApproximate average salary by contribution assumption: employee only about $193,989 at 4% or $129,326 at 6%; with 50% employer match about $129,326 at 4% or $86,217 at 6%; with 100% employer match about $96,995 at 4% or $64,663 at 6%.
Altair Engineering Inc Cafeteria Plan-459---
20042473$21,819,195$2,977,053$6,294iApproximate average salary by contribution assumption: employee only about $157,350 at 4% or $104,900 at 6%; with 50% employer match about $104,900 at 4% or $69,933 at 6%; with 100% employer match about $78,675 at 4% or $52,450 at 6%.
Altair Salary Reduction Profit Sharing Plan-473$21,819,195$2,977,053$6,294iApproximate average salary by contribution assumption: employee only about $157,350 at 4% or $104,900 at 6%; with 50% employer match about $104,900 at 4% or $69,933 at 6%; with 100% employer match about $78,675 at 4% or $52,450 at 6%.
Altair Engineering Inc Cafeteria Plan-452---
20032480$17,187,725$2,738,502$5,705iApproximate average salary by contribution assumption: employee only about $142,630 at 4% or $95,087 at 6%; with 50% employer match about $95,087 at 4% or $63,391 at 6%; with 100% employer match about $71,315 at 4% or $47,543 at 6%.
Altair Salary Reduction Profit Sharing Plan-475$17,187,725$2,738,502$5,765iApproximate average salary by contribution assumption: employee only about $144,132 at 4% or $96,088 at 6%; with 50% employer match about $96,088 at 4% or $64,059 at 6%; with 100% employer match about $72,066 at 4% or $48,044 at 6%.
Altair Engineering Inc Cafeteria Plan-480---
20022518$11,409,793$2,452,405$4,734iApproximate average salary by contribution assumption: employee only about $118,359 at 4% or $78,906 at 6%; with 50% employer match about $78,906 at 4% or $52,604 at 6%; with 100% employer match about $59,180 at 4% or $39,453 at 6%.
Altair Salary Reduction Profit Sharing Plan-487$11,409,793$2,452,405$5,036iApproximate average salary by contribution assumption: employee only about $125,893 at 4% or $83,929 at 6%; with 50% employer match about $83,929 at 4% or $55,953 at 6%; with 100% employer match about $62,947 at 4% or $41,964 at 6%.
Altair Engineering Inc Cafeteria Plan-518---
20012512$11,735,893$2,299,257$4,491iApproximate average salary by contribution assumption: employee only about $112,268 at 4% or $74,846 at 6%; with 50% employer match about $74,846 at 4% or $49,897 at 6%; with 100% employer match about $56,134 at 4% or $37,423 at 6%.
Altair Salary Reduction Profit Sharing Plan-478$11,735,893$2,299,257$4,810iApproximate average salary by contribution assumption: employee only about $120,254 at 4% or $80,169 at 6%; with 50% employer match about $80,169 at 4% or $53,446 at 6%; with 100% employer match about $60,127 at 4% or $40,085 at 6%.
Altair Engineering Inc Cafeteria Plan-512---
20002528$11,070,384$2,401,778$4,549iApproximate average salary by contribution assumption: employee only about $113,721 at 4% or $75,814 at 6%; with 50% employer match about $75,814 at 4% or $50,542 at 6%; with 100% employer match about $56,860 at 4% or $37,907 at 6%.
Altair Salary Reduction Profit Sharing Plan-484$11,070,384$2,401,778$4,962iApproximate average salary by contribution assumption: employee only about $124,059 at 4% or $82,706 at 6%; with 50% employer match about $82,706 at 4% or $55,137 at 6%; with 100% employer match about $62,029 at 4% or $41,353 at 6%.
Altair Engineering Inc Cafeteria Plan-528---
19991453$0$0-
Altair Engineering Inc Cafeteria Plan-453---