Civic Intelligence

Trillium Staffing

Plan context: Technical Services Retirement Plan

EIN 38-2512681 • Rochester Hills, MI • 64 filings • 8 plans

2055 Crooks Rd.Level ARochester Hills, MI 48309
Current Snapshot

Latest Year

2025

2025 Participants

373

2025 Assets

$29,175,213

2025 Contributions

$3,309,293

Historical Graphs

Total Assets Over Time

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

$29,175,213$14,587,607$0199920122024YearValue
$29,175,213Latest year 2024

Participants Over Time

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

5,0952,5480199920122025YearValue
373Latest 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
20251373$0$0-
The Trillium Companies Welfare Benefit Plan-373---
202422,593$29,175,213$3,309,293$1,276iApproximate average salary by contribution assumption: employee only about $31,906 at 4% or $21,271 at 6%; with 50% employer match about $21,271 at 4% or $14,180 at 6%; with 100% employer match about $15,953 at 4% or $10,635 at 6%.
Technical Services Retirement Plan-2,593$29,175,213$3,309,293$1,276iApproximate average salary by contribution assumption: employee only about $31,906 at 4% or $21,271 at 6%; with 50% employer match about $21,271 at 4% or $14,180 at 6%; with 100% employer match about $15,953 at 4% or $10,635 at 6%.
The Trillium Companies Welfare Benefit Plan-570---
202322,983$27,396,539$3,076,112$1,031iApproximate average salary by contribution assumption: employee only about $25,780 at 4% or $17,187 at 6%; with 50% employer match about $17,187 at 4% or $11,458 at 6%; with 100% employer match about $12,890 at 4% or $8,593 at 6%.
Technical Services Retirement Plan-2,983$27,396,539$3,076,112$1,031iApproximate average salary by contribution assumption: employee only about $25,780 at 4% or $17,187 at 6%; with 50% employer match about $17,187 at 4% or $11,458 at 6%; with 100% employer match about $12,890 at 4% or $8,593 at 6%.
The Trillium Companies Welfare Benefit Plan-563---
202223,178$24,236,715$3,378,907$1,063iApproximate average salary by contribution assumption: employee only about $26,580 at 4% or $17,720 at 6%; with 50% employer match about $17,720 at 4% or $11,814 at 6%; with 100% employer match about $13,290 at 4% or $8,860 at 6%.
Technical Services Retirement Plan-3,178$24,236,715$3,378,907$1,063iApproximate average salary by contribution assumption: employee only about $26,580 at 4% or $17,720 at 6%; with 50% employer match about $17,720 at 4% or $11,814 at 6%; with 100% employer match about $13,290 at 4% or $8,860 at 6%.
The Trillium Companies Welfare Benefit Plan-693---
202123,098$28,025,547$2,972,370$959iApproximate average salary by contribution assumption: employee only about $23,986 at 4% or $15,991 at 6%; with 50% employer match about $15,991 at 4% or $10,661 at 6%; with 100% employer match about $11,993 at 4% or $7,995 at 6%.
Technical Services Retirement Plan-3,098$28,025,547$2,972,370$959iApproximate average salary by contribution assumption: employee only about $23,986 at 4% or $15,991 at 6%; with 50% employer match about $15,991 at 4% or $10,661 at 6%; with 100% employer match about $11,993 at 4% or $7,995 at 6%.
The Trillium Companies Welfare Benefit Plan-962---
202023,208$23,636,431$2,498,927$779iApproximate average salary by contribution assumption: employee only about $19,474 at 4% or $12,983 at 6%; with 50% employer match about $12,983 at 4% or $8,655 at 6%; with 100% employer match about $9,737 at 4% or $6,491 at 6%.
Technical Services Retirement Plan-3,208$23,636,431$2,498,927$779iApproximate average salary by contribution assumption: employee only about $19,474 at 4% or $12,983 at 6%; with 50% employer match about $12,983 at 4% or $8,655 at 6%; with 100% employer match about $9,737 at 4% or $6,491 at 6%.
The Trillium Companies Welfare Benefit Plan-927---
201923,544$19,761,811$3,521,287$994iApproximate average salary by contribution assumption: employee only about $24,840 at 4% or $16,560 at 6%; with 50% employer match about $16,560 at 4% or $11,040 at 6%; with 100% employer match about $12,420 at 4% or $8,280 at 6%.
Technical Services Retirement Plan-3,544$19,761,811$3,521,287$994iApproximate average salary by contribution assumption: employee only about $24,840 at 4% or $16,560 at 6%; with 50% employer match about $16,560 at 4% or $11,040 at 6%; with 100% employer match about $12,420 at 4% or $8,280 at 6%.
The Trillium Companies Welfare Benefit Plan-1,006---
201825,095$15,571,079$3,072,922$603iApproximate average salary by contribution assumption: employee only about $15,078 at 4% or $10,052 at 6%; with 50% employer match about $10,052 at 4% or $6,701 at 6%; with 100% employer match about $7,539 at 4% or $5,026 at 6%.
Technical Services Retirement Plan-5,095$15,571,079$3,072,922$603iApproximate average salary by contribution assumption: employee only about $15,078 at 4% or $10,052 at 6%; with 50% employer match about $10,052 at 4% or $6,701 at 6%; with 100% employer match about $7,539 at 4% or $5,026 at 6%.
The Trillium Companies Welfare Benefit Plan-892---
201724,890$15,445,863$2,084,573$426iApproximate average salary by contribution assumption: employee only about $10,657 at 4% or $7,105 at 6%; with 50% employer match about $7,105 at 4% or $4,737 at 6%; with 100% employer match about $5,329 at 4% or $3,552 at 6%.
Technical Services Retirement Plan-4,890$15,445,863$2,084,573$426iApproximate average salary by contribution assumption: employee only about $10,657 at 4% or $7,105 at 6%; with 50% employer match about $7,105 at 4% or $4,737 at 6%; with 100% employer match about $5,329 at 4% or $3,552 at 6%.
The Trillium Companies Welfare Benefit Plan-619---
201624,515$12,395,546$1,846,882$409iApproximate average salary by contribution assumption: employee only about $10,226 at 4% or $6,818 at 6%; with 50% employer match about $6,818 at 4% or $4,545 at 6%; with 100% employer match about $5,113 at 4% or $3,409 at 6%.
Technical Services Retirement Plan-4,515$12,395,546$1,846,882$409iApproximate average salary by contribution assumption: employee only about $10,226 at 4% or $6,818 at 6%; with 50% employer match about $6,818 at 4% or $4,545 at 6%; with 100% employer match about $5,113 at 4% or $3,409 at 6%.
The Trillium Companies Welfare Benefit Plan-764---
201524,451$11,511,256$1,876,428$422iApproximate average salary by contribution assumption: employee only about $10,539 at 4% or $7,026 at 6%; with 50% employer match about $7,026 at 4% or $4,684 at 6%; with 100% employer match about $5,270 at 4% or $3,513 at 6%.
Technical Services Retirement Plan-4,451$11,511,256$1,876,428$422iApproximate average salary by contribution assumption: employee only about $10,539 at 4% or $7,026 at 6%; with 50% employer match about $7,026 at 4% or $4,684 at 6%; with 100% employer match about $5,270 at 4% or $3,513 at 6%.
The Trillium Companies Welfare Benefit Plan-529---
201424,912$10,756,198$1,344,626$274iApproximate average salary by contribution assumption: employee only about $6,844 at 4% or $4,562 at 6%; with 50% employer match about $4,562 at 4% or $3,042 at 6%; with 100% employer match about $3,422 at 4% or $2,281 at 6%.
Technical Services Retirement Plan-4,912$10,756,198$1,344,626$274iApproximate average salary by contribution assumption: employee only about $6,844 at 4% or $4,562 at 6%; with 50% employer match about $4,562 at 4% or $3,042 at 6%; with 100% employer match about $3,422 at 4% or $2,281 at 6%.
The Trillium Companies Welfare Benefit Plan-511---
201334,128$10,156,567$1,289,249$312iApproximate average salary by contribution assumption: employee only about $7,808 at 4% or $5,205 at 6%; with 50% employer match about $5,205 at 4% or $3,470 at 6%; with 100% employer match about $3,904 at 4% or $2,603 at 6%.
Technical Services Retirement Plan-4,128$10,156,567$1,289,249$312iApproximate average salary by contribution assumption: employee only about $7,808 at 4% or $5,205 at 6%; with 50% employer match about $5,205 at 4% or $3,470 at 6%; with 100% employer match about $3,904 at 4% or $2,603 at 6%.
Computer & Engineering Services Inc. Cafeteria Plan-0---
The Trillium Companies Welfare Benefit Plan-452---
201233,983$8,448,256$1,367,237$343iApproximate average salary by contribution assumption: employee only about $8,582 at 4% or $5,721 at 6%; with 50% employer match about $5,721 at 4% or $3,814 at 6%; with 100% employer match about $4,291 at 4% or $2,861 at 6%.
Technical Services Retirement Plan-3,983$8,448,256$1,367,237$343iApproximate average salary by contribution assumption: employee only about $8,582 at 4% or $5,721 at 6%; with 50% employer match about $5,721 at 4% or $3,814 at 6%; with 100% employer match about $4,291 at 4% or $2,861 at 6%.
The Trillium Companies Welfare Benefit Plan-510---
Computer & Engineering Services Inc. Cafeteria Plan-377---
201133,399$7,474,259$1,144,564$337iApproximate average salary by contribution assumption: employee only about $8,418 at 4% or $5,612 at 6%; with 50% employer match about $5,612 at 4% or $3,742 at 6%; with 100% employer match about $4,209 at 4% or $2,806 at 6%.
Technical Services Retirement Plan-3,399$7,474,259$1,144,564$337iApproximate average salary by contribution assumption: employee only about $8,418 at 4% or $5,612 at 6%; with 50% employer match about $5,612 at 4% or $3,742 at 6%; with 100% employer match about $4,209 at 4% or $2,806 at 6%.
The Trillium Companies Welfare Benefit Plan-480---
Computer & Engineering Services Inc. Cafeteria Plan-365---
201033,387$7,618,919$891,863$263iApproximate average salary by contribution assumption: employee only about $6,583 at 4% or $4,389 at 6%; with 50% employer match about $4,389 at 4% or $2,926 at 6%; with 100% employer match about $3,291 at 4% or $2,194 at 6%.
Technical Services Retirement Plan-3,387$7,618,919$891,863$263iApproximate average salary by contribution assumption: employee only about $6,583 at 4% or $4,389 at 6%; with 50% employer match about $4,389 at 4% or $2,926 at 6%; with 100% employer match about $3,291 at 4% or $2,194 at 6%.
Computer & Engineering Services Inc. Cafeteria Plan-302---
The Trillium Companies Welfare Benefit Plan-412---
200933,275$6,689,920$476,163$145iApproximate average salary by contribution assumption: employee only about $3,635 at 4% or $2,423 at 6%; with 50% employer match about $2,423 at 4% or $1,615 at 6%; with 100% employer match about $1,817 at 4% or $1,212 at 6%.
Technical Services Retirement Plan-3,275$6,689,920$476,163$145iApproximate average salary by contribution assumption: employee only about $3,635 at 4% or $2,423 at 6%; with 50% employer match about $2,423 at 4% or $1,615 at 6%; with 100% employer match about $1,817 at 4% or $1,212 at 6%.
Computer & Engineering Services Inc. Cafeteria Plan-247---
The Trillium Companies Welfare Benefit Plan-287---
200821,502$5,525,310$951,868$634iApproximate average salary by contribution assumption: employee only about $15,843 at 4% or $10,562 at 6%; with 50% employer match about $10,562 at 4% or $7,041 at 6%; with 100% employer match about $7,922 at 4% or $5,281 at 6%.
Technical Services Retirement Plan-1,502$5,525,310$951,868$634iApproximate average salary by contribution assumption: employee only about $15,843 at 4% or $10,562 at 6%; with 50% employer match about $10,562 at 4% or $7,041 at 6%; with 100% employer match about $7,922 at 4% or $5,281 at 6%.
Computer & Engineering Services Inc. Cafeteria Plan-615---
200731,447$8,502,589$1,043,892$721iApproximate average salary by contribution assumption: employee only about $18,035 at 4% or $12,024 at 6%; with 50% employer match about $12,024 at 4% or $8,016 at 6%; with 100% employer match about $9,018 at 4% or $6,012 at 6%.
Technical Services Retirement Plan-1,447$8,502,589$1,043,892$721iApproximate average salary by contribution assumption: employee only about $18,035 at 4% or $12,024 at 6%; with 50% employer match about $12,024 at 4% or $8,016 at 6%; with 100% employer match about $9,018 at 4% or $6,012 at 6%.
Computer & Engineering Services Inc. Cafeteria Plan-362---
The Trillium Companies Welfare Benefit Plan-362---
20063696$8,474,160$752,210$1,081iApproximate average salary by contribution assumption: employee only about $27,019 at 4% or $18,013 at 6%; with 50% employer match about $18,013 at 4% or $12,008 at 6%; with 100% employer match about $13,510 at 4% or $9,006 at 6%.
Technical Services Retirement Plan-696$8,474,160$752,210$1,081iApproximate average salary by contribution assumption: employee only about $27,019 at 4% or $18,013 at 6%; with 50% employer match about $18,013 at 4% or $12,008 at 6%; with 100% employer match about $13,510 at 4% or $9,006 at 6%.
Computer & Engineering Services Inc. Cafeteria Plan-378---
The Trillium Companies Welfare Benefit Plan-378---
200531,276$8,337,320$729,038$571iApproximate average salary by contribution assumption: employee only about $14,284 at 4% or $9,522 at 6%; with 50% employer match about $9,522 at 4% or $6,348 at 6%; with 100% employer match about $7,142 at 4% or $4,761 at 6%.
Technical Services Retirement Plan-1,276$8,337,320$729,038$571iApproximate average salary by contribution assumption: employee only about $14,284 at 4% or $9,522 at 6%; with 50% employer match about $9,522 at 4% or $6,348 at 6%; with 100% employer match about $7,142 at 4% or $4,761 at 6%.
Computer & Engineering Services Inc. Cafeteria Plan-380---
The Trillium Companies Welfare Benefit Plan-380---
200431,374$7,979,172$877,063$638iApproximate average salary by contribution assumption: employee only about $15,958 at 4% or $10,639 at 6%; with 50% employer match about $10,639 at 4% or $7,093 at 6%; with 100% employer match about $7,979 at 4% or $5,319 at 6%.
Technical Services Retirement Plan-1,374$7,979,172$877,063$638iApproximate average salary by contribution assumption: employee only about $15,958 at 4% or $10,639 at 6%; with 50% employer match about $10,639 at 4% or $7,093 at 6%; with 100% employer match about $7,979 at 4% or $5,319 at 6%.
The Trillium Companies Welfare Benefit Plan-388---
Computer & Engineering Services Inc. Cafeteria Plan-388---
200321,158$7,849,963$781,787$675iApproximate average salary by contribution assumption: employee only about $16,878 at 4% or $11,252 at 6%; with 50% employer match about $11,252 at 4% or $7,501 at 6%; with 100% employer match about $8,439 at 4% or $5,626 at 6%.
Technical Services Retirement Plan-1,158$7,849,963$781,787$675iApproximate average salary by contribution assumption: employee only about $16,878 at 4% or $11,252 at 6%; with 50% employer match about $11,252 at 4% or $7,501 at 6%; with 100% employer match about $8,439 at 4% or $5,626 at 6%.
The Trillium Companies Welfare Benefit Plan-316---
200221,284$6,607,268$883,746$688iApproximate average salary by contribution assumption: employee only about $17,207 at 4% or $11,471 at 6%; with 50% employer match about $11,471 at 4% or $7,648 at 6%; with 100% employer match about $8,603 at 4% or $5,736 at 6%.
Technical Services Retirement Plan-1,284$6,607,268$883,746$688iApproximate average salary by contribution assumption: employee only about $17,207 at 4% or $11,471 at 6%; with 50% employer match about $11,471 at 4% or $7,648 at 6%; with 100% employer match about $8,603 at 4% or $5,736 at 6%.
The Trillium Companies Welfare Benefit Plan-336---
200121,227$8,266,773$1,590,912$1,297iApproximate average salary by contribution assumption: employee only about $32,415 at 4% or $21,610 at 6%; with 50% employer match about $21,610 at 4% or $14,407 at 6%; with 100% employer match about $16,207 at 4% or $10,805 at 6%.
Technical Services Retirement Plan-1,227$8,266,773$1,590,912$1,297iApproximate average salary by contribution assumption: employee only about $32,415 at 4% or $21,610 at 6%; with 50% employer match about $21,610 at 4% or $14,407 at 6%; with 100% employer match about $16,207 at 4% or $10,805 at 6%.
The Trillium Companies Welfare Benefit Plan-368---
200031,002$0$0-
The Trillium Companies Welfare Benefit Plan-559---
Computer & Engineering Services Inc. Cafeteria Plan-559---
Technical Services Retirement Plan-1,002---
19993736$5,542,007$1,210,518$1,645iApproximate average salary by contribution assumption: employee only about $41,118 at 4% or $27,412 at 6%; with 50% employer match about $27,412 at 4% or $18,275 at 6%; with 100% employer match about $20,559 at 4% or $13,706 at 6%.
Technical Services Retirement Plan-437$5,542,007$1,210,518$2,770iApproximate average salary by contribution assumption: employee only about $69,252 at 4% or $46,168 at 6%; with 50% employer match about $46,168 at 4% or $30,778 at 6%; with 100% employer match about $34,626 at 4% or $23,084 at 6%.
The Trillium Companies Welfare Benefit Plan-736---
Computer & Engineering Services Inc. Cafeteria Plan-344---