Detroit Thermal Systems, Llc 401(k) Plan: Login, Facts & Contact Information

Detroit Thermal Systems, Llc 401(k) Plan Facts

Plan name
DETROIT THERMAL SYSTEMS, LLC HOURLY 401(K) PLAN
Plan type
401(k) with employer contributions and profit sharing
Plan sponsor
DETROIT THERMAL SYSTEMS, LLC
Participants
421 (541 active employees)
Former employees with a balance
57
Plan assets
$6,011,954 at Dec 31, 2024
Average account balance
$13,917 across 432 accounts
Employer contributions
$271,547 in plan year 2024 (31% of all contributions)
Recordkeeper
Fidelity Investments Institutional
Plan year
Jan 1, 2024 – Dec 31, 2024
Plan established
Jan 1, 2013
✓ Employer contributions✓ Automatic enrollment✓ Default investment for undecided participants✓ Participants choose their own investments— Self-directed brokerage window✓ Profit sharing— Company stock (ESOP)

Source: Form 5500 for plan year 2024 (Jan 1, 2024 – Dec 31, 2024), filed Aug 29, 2025. Public filing with the U.S. Department of Labor.

Money in and out in plan year 2024

  • $882,847 went into the plan in contributions, $271,547 of it from the employer (31%).
  • $825,633 was paid out to participants.
  • Investment and other income added $736,517.
  • Administrative expenses were $23,098, about $53 per account.

How the Detroit Thermal Systems, Llc 401(k) changed, 2019–2024

Plan yearParticipantsPlan assetsEmployer contributionsBenefits paid
2019589$3.83 million$241,577$231,650
2020486$4.29 million$243,860$857,338
2021483$5.40 million$288,141$320,302
2022476$4.33 million$216,391$787,609
2023460$5.28 million$250,829$603,187
2024421$6.01 million$271,547$825,633

Detroit Thermal Systems, Llc 401(k) Contact Information

Phone
734-403-6511
Mailing address
6505 COGSWELL ST, STE 100, ROMULUS MI 48174
Plan sponsor
DETROIT THERMAL SYSTEMS, LLC
Employer identification number (EIN)
45-5629784
Plan number
001

Questions about the Detroit Thermal Systems, Llc 401(k)

Does Detroit Thermal Systems, Llc contribute to the 401(k)?

Yes. The plan reports an employer contribution arrangement. In plan year 2024 the employer contributed $271,547, 31% of all contributions.

Does the Detroit Thermal Systems, Llc 401(k) have automatic enrollment?

Yes. The plan reports automatic enrollment of eligible employees.

How many people are in the Detroit Thermal Systems, Llc 401(k) plan?

421 participants at the start of plan year 2024, 541 of them active employees, and 57 former employees who still had money in the plan.

What is the average 401(k) balance at Detroit Thermal Systems, Llc?

About $13,917 per account: $6.01 million in plan assets across 432 accounts with a balance at the end of plan year 2024.

Who manages the Detroit Thermal Systems, Llc 401(k) accounts?

Fidelity NetBenefits (listed on the filing as FIDELITY INVESTMENTS INSTITUTIONAL) is the plan's recordkeeper, which is where participants log in to see their balance.

I no longer work at Detroit Thermal Systems, Llc. How do I access my 401(k)?

Your account stays with Fidelity NetBenefits after you leave, so you can log in with the same credentials. If your balance was small, the plan may have rolled it into an IRA in your name. If you can't find it, Beagle can locate it for you.

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