Miller Insulation Co., Inc. 401(k) Plan: Login, Facts & Contact Information

Miller Insulation Co., Inc. 401(k) Plan Facts

Plan name
MILLER INSULATION CO., INC. 401(K) PLAN
Plan type
401(k) with employer contributions and profit sharing
Plan sponsor
MILLER INSULATION CO., INC.
Participants
349 (326 active employees)
Former employees with a balance
32
Plan assets
$23,988,639 at Dec 31, 2024
Average account balance
$127,599 across 188 accounts
Employer contributions
$672,050 in plan year 2024 (34% of all contributions)
Recordkeeper
Principal Life Insurance Company
Plan year
Jan 1, 2024 – Dec 31, 2024
Plan established
Jan 1, 1990
✓ 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 Oct 8, 2025. Public filing with the U.S. Department of Labor.

Money in and out in plan year 2024

  • $1.95 million went into the plan in contributions, $672,050 of it from the employer (34%).
  • $2.05 million was paid out to participants.
  • Investment and other income added $2.49 million.
  • Administrative expenses were $9,504, about $51 per account.

How the Miller Insulation Co., Inc. 401(k) changed, 2019–2024

Plan yearParticipantsPlan assetsEmployer contributionsBenefits paid
2019301$19.0 million$574,003$4.17 million
2020347$21.1 million$514,226$2.37 million
2021313$24.4 million$492,695$1.25 million
2022296$17.8 million$488,624$4.28 million
2023312$21.6 million$572,213$902,195
2024349$24.0 million$672,050$2.05 million

Miller Insulation Co., Inc. 401(k) Contact Information

Phone
701-258-4523
Mailing address
3520 EAST CENTURY AVE, BISMARCK ND 585030739
Plan sponsor
MILLER INSULATION CO., INC.
Employer identification number (EIN)
45-0376527
Plan number
001

Questions about the Miller Insulation Co., Inc. 401(k)

Does Miller Insulation Co., Inc contribute to the 401(k)?

Yes. The plan reports an employer contribution arrangement. In plan year 2024 the employer contributed $672,050, 34% of all contributions.

Does the Miller Insulation Co., Inc 401(k) have automatic enrollment?

No. The plan does not report automatic enrollment; employees enroll themselves.

How many people are in the Miller Insulation Co., Inc 401(k) plan?

349 participants at the start of plan year 2024, 326 of them active employees, and 32 former employees who still had money in the plan.

What is the average 401(k) balance at Miller Insulation Co., Inc?

About $127,599 per account: $24.0 million in plan assets across 188 accounts with a balance at the end of plan year 2024.

Who manages the Miller Insulation Co., Inc 401(k) accounts?

Principal (listed on the filing as PRINCIPAL LIFE INSURANCE COMPANY) is the plan's recordkeeper, which is where participants log in to see their balance.

I no longer work at Miller Insulation Co., Inc. How do I access my 401(k)?

Your account stays with Principal 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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