401(k) · DOL Form 5500 · 2024

Thermostat Intermediate Holdings, LLC 401(k) Plan

Data updated 2026-08-25

$53M
Total assets Below avg plan size
1,565
Participants Near avg headcount
85th
Percentile by assets National rank
$34,181
Avg per participant Low balance/head
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Official DOL plan name: Premistar 401(k) Plan · Sponsored by Thermostat Intermediate Holdings, LLC · Illinois · Construction

$53M in assets, 1,565 participants

Thermostat Intermediate Holdings, LLC's Premistar 401(k) Plan reported $53M in total assets and 1,565 participants in its 2024 DOL Form 5500 filing, ranking in the 85th percentile by assets among filed plans. Figures are as reported by the plan sponsor to the Department of Labor, not audited or endorsed by PlainRetire.

  • #7,505 in Construction (9,039 peers)

Coverage in Illinois

Premistar 401(k) Plan covers 1,565 participants in Illinois, 2.0x the typical Illinois plan (state average ~779 per filing). Assets: $53M.

#7,505
in Construction (9,039 peers)
+17.3%
assets growth YoY
0.5×
vs typical plan assets (national mean)

Premistar 401(k) Plan's outsized position by total assets

Premistar 401(k) Plan vs every filed plan by assets

End-of-year total assets · plan year 2024 · DOL Form 5500

$53,493,426 Top 15% higher than 85% of 123,620 filed plans

This plan $0 $2,050,000,000 every filed plan with reported assets, bucketed by value

Dashed line + filled bar = this entry, among filed plans.

Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2024

Premistar 401(k) Plan's large-plan peer group by participant headcount

Plan-year 2024 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Premistar 401(k) Plan lands in the large band (1,565 participants).

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Premistar 401(k) Plan end-of-year assets rose from $46M in the plan year 2023 filing to $53M in the plan year 2024 filing.
  • Premistar 401(k) Plan reported net income fell from $9M in the plan year 2023 filing to $8M in the plan year 2024 filing.
  • Premistar 401(k) Plan reported participants rose from 1,453 in the plan year 2023 filing to 1,565 in the plan year 2024 filing.

See the national 2023→2024 release diff →

Form 5500 schedule snapshot

Filing strip 352655283 · Thermostat Intermediate Holdings, LLC PY 2024 · 401(k)

Premistar 401(k) Plan · $53M · 1,565 · 85th

  • EOY $53M
  • EOY 1,565
  • EOY 85th
  • EOY 401(k)
  • EOY near Pkc Group 401(k) Savings & Profit Sharing Plan
  • EOY ind #7505

Stamps derive from this plan's Form 5500 line items (assets, participants, type, EIN, cohort placement) - not a quality rating of the sponsor. Read with Construction retirement plans → · Plans in Illinois →

Premistar 401(k) Plan in the asset neighbourhood

Oregon Urology Institute, P.C. 401(k) Profit Sharing PlanOregon Urology Institute, P.…$53MGibson Brands, Inc. 401(k) PlanGibson Brands, Inc. 401(k) P…$54MPremistar 401(k) Plan$53MPkc Group 401(k) Savings & Profit Sharing PlanPkc Group 401(k) Savings & P…$53MNorth American Savings Bank, F.S.B. Savings and Retirement PlanNorth American Savings Bank,…$53M
End-of-year total assets ($M) among Premistar 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

Illinois filing particulars

Total Assets (Beginning of Year)$46M
Net Assets (End of Year)$53M
Net Income$8M
Employer EIN352655283
Plan Effective Date1980-11-30
Filing StatusFILING RECEIVED

Sponsor Plan History (Thermostat Intermediate Holdings, LLC)

Sponsor-wide plan assets over time

All Thermostat Intermediate Holdings, LLC plans reported in each filing year

Latest sponsor-wide plan assets
$53M 59.69706132938677% vs 2022
2024 filing year
$30M$40M$50M$60M 202220232024 $33.5M $53.5M ▲ +59.7%
Year Plans Participants Total Assets
2022 1 1,389 $33M
2023 1 1,453 $46M
2024 1 1,565 $53M

Nearby 401(k) Plans in Illinois

Peer 401(k) plans, same state, same plan type, ranked by total assets.

Premistar 401(k) Plan vs. nearby 401(k) plans in Illinois, assets vs. participants Scatter plot of 6 data points. -1000000100000200000300000 -50510152025 Total assets ($B) Participants Premistar 401(k) Plan, Total assets ($B): 0.053493426 · Participants: 1565Premistar 401(k) PlanAccenture United States 401(k) Match and Savings Plan, Total assets ($B): 21.302643276 · Participants: 66965Accenture United States 401(k) Match and Savings PlanState Farm 401(k) Savings Plan, Total assets ($B): 19.010099056 · Participants: 63297State Farm 401(k) Savings PlanUnited Airlines Pilot Retirement Account Plan, Total assets ($B): 16.835964452 · Participants: 16659United Airlines Pilot Retirement Account PlanAbbott Laboratories Stock Retirement Plan, Total assets ($B): 15.755668 · Participants: 38229Abbott Laboratories Stock Retirement PlanWalgreens Retirement Savings Plan, Total assets ($B): 14.535873337 · Participants: 233635Walgreens Retirement Savings Plan
Premistar 401(k) Plan vs. nearby 401(k) plans in Illinois, assets vs. participants
Compare Premistar 401(k) Plan side-by-side with 3 peers →

Premistar 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside Illinois, the nearest 401(k) by assets is Pkc Group 401(k) Savings & Profit Sharing Plan in MI ($53M); by covered participants it is Revelyst, Inc. 401(k) Plan in MN (1,565 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (1,565 participants); asset peers above are excluded.

DOL Form 5500 plan year 2024. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Premistar 401(k) Plan assets move in 2024? ▼
Premistar 401(k) Plan grew sharply - up 17.3% during 2024, from $46M to $53M. Reported net income was $8M.
How have Thermostat Intermediate Holdings, LLC plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Thermostat Intermediate Holdings, LLC's sponsor-wide assets grew 59.7%, from $33M to $53M.
Where does Premistar 401(k) Plan rank by assets among Form 5500 filers? ▼
Premistar 401(k) Plan ranks in the 85th percentile by end-of-year assets among 123,622 plans that reported assets for plan year 2024 (in the top quartile of all filed plans by assets).
Which 401(k) plans are similar in size to Premistar 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Pkc Group 401(k) Savings & Profit Sharing Plan in MI ($53M, 195 participants).
Which 401(k) plans cover a similar participant headcount to Premistar 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Revelyst, Inc. 401(k) Plan in MN (1,565 participants, $95M in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2024.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 352655283.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from U.S. Department of Labor Form 5500 filings (EBSA). See our methodology for details.