401(k) · DOL Form 5500 · 2024

Thermostat Intermediate Holdings, LLC 401(k) Plan

Data updated 2026-08-11

$53M
Total assets
1,565
Participants
85th
Percentile by assets
$34,181
Avg per participant
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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.

  • 85th percentile by assets (of 123,622 plans)
  • #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.

$53M
total plan assets (2024 EOY)
1,565
covered participants
85th
percentile by assets (of 123,622 plans)
$34,181
avg assets per participant

Where Premistar 401(k) Plan sits 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 $2,010,000,000 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

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 →

State
Illinois
Industry
Construction

Participants vs Illinois filers

In Illinois, the average filing covers about 779 participants across 5,745 plans. Premistar 401(k) Plan reports 1,565 participants - 2.0x that state average ($53M EOY assets).

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)

$30M$40M$50M$60M 202220232024 $33.5M $53.5M ▲ +59.7%
Total plan assets by year, all Thermostat Intermediate Holdings, LLC plans on file
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 Sta…, Total assets ($B): 21.302643276 · Participants: 66965Accenture United Sta…State Farm 401(k) Sa…, Total assets ($B): 19.010099056 · Participants: 63297State Farm 401(k) Sa…United Airlines Pilo…, Total assets ($B): 16.835964452 · Participants: 16659United Airlines Pilo…Abbott Laboratories …, Total assets ($B): 15.755668 · Participants: 38229Abbott Laboratories …Walgreens Retirement…, Total assets ($B): 14.535873337 · Participants: 233635Walgreens Retirement…
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 →

Similar-Sized 401(k) Plans Nationally

401(k) plans in other states closest to Premistar 401(k) Plan by total assets, not by location.

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).

Next read for Premistar 401(k) Plan

Filing takeaways

Ways to act on Premistar 401(k) Plan's numbers.

  • By total assets, Premistar 401(k) Plan ranks in the top quartile of all filed plans by assets. See the largest plans
  • Compare it side-by-side against 3 similar 401(k) plans in Illinois. Compare plans
  • Thermostat Intermediate Holdings, LLC's sponsor-wide assets have grown 59.7% since 2022 across 3 plan years on file. More Construction plans

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.