401(k) · DOL Form 5500 · 2023

Terrapower, LLC 401(k) Plan

Data updated 2026-08-11

$72M
Total assets
406
Participants
89th
Percentile by assets
$177,148
Avg per participant
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Official DOL plan name: Terrapower, LLC 401(k) Plan · Sponsored by Terrapower, LLC · Washington · Professional & Technical Services

$72M in assets, 406 participants

Terrapower, LLC's Terrapower, LLC 401(k) Plan reported $72M in total assets and 406 participants in its 2023 DOL Form 5500 filing, ranking in the 89th 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.

  • 89th percentile by assets (of 127,072 plans)
  • #18,296 in Professional & Technical Services (20,321 peers)

Coverage in Washington

Terrapower, LLC 401(k) Plan covers 406 participants in Washington, about 28% of the average Washington filer (state average ~1,476 per filing). Assets: $72M.

$72M
total plan assets (2023 EOY)
406
covered participants
89th
percentile by assets (of 127,072 plans)
$177,148
avg assets per participant

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Terrapower, LLC 401(k) Plan reported net income rose from -$147K in the plan year 2022 filing to $21M in the plan year 2023 filing.
  • Terrapower, LLC 401(k) Plan end-of-year assets rose from $51M in the plan year 2022 filing to $72M in the plan year 2023 filing.
  • Terrapower, LLC 401(k) Plan reported participants rose from 303 in the plan year 2022 filing to 406 in the plan year 2023 filing.

See the national 2022→2023 release diff →

Participants vs Washington filers

In Washington, the average filing covers about 1,476 participants across 2,612 plans. Terrapower, LLC 401(k) Plan reports 406 participants - about 28% of that state average ($72M EOY assets).

Washington filing particulars

Total Assets (Beginning of Year)$51M
Net Assets (End of Year)$72M
Net Income$21M
Employer EIN263743526
Plan Effective Date2013-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Terrapower, LLC)

$40M$60M$80M$100M$120M 202220232024 $50.9M $96.7M ▲ +89.9%
Total plan assets by year, all Terrapower, LLC plans on file
Year Plans Participants Total Assets
2022 1 303 $51M
2023 1 406 $72M
2024 1 550 $97M

Nearby 401(k) Plans in Washington

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

Terrapower, LLC 401(k) Plan vs. nearby 401(k) plans in Washington, assets vs. participants

Terrapower, LLC 401(k) Plan vs. nearby 401(k) plans in Washington, assets vs. participants Scatter plot of 6 data points. -50000050000100000150000200000250000 -20020406080 Total assets ($B) Participants Terrapower, LLC 401(…The Boeing Company 4…Microsoft Corporatio…Costco 401(k) Retire…T-Mobile USA, Inc. 4…401(k) Savings Plan
Terrapower, LLC 401(k) Plan vs. nearby 401(k) plans in Washington, assets vs. participants

Similar-Sized 401(k) Plans Nationally

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

Frequently Asked Questions

How did Terrapower, LLC 401(k) Plan assets move in 2023?
Terrapower, LLC 401(k) Plan surged - up 41.3% during 2023, from $51M to $72M. Reported net income was $21M.
How have Terrapower, LLC plan assets changed over time?
Across 3 plan years on file (2022-2024), Terrapower, LLC's sponsor-wide assets grew 89.9%, from $51M to $97M.
Where does Terrapower, LLC 401(k) Plan rank by assets among Form 5500 filers?
Terrapower, LLC 401(k) Plan ranks in the 89th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (in the top quartile of all filed plans by assets).
Which 401(k) plans are similar in size to Terrapower, LLC 401(k) Plan?
Among 401(k) plans in other states, the closest by assets is Tuv Sud America, Inc. 401(k) Savings Plan in MA ($72M, 541 participants).

Filing takeaways

Ways to act on Terrapower, LLC 401(k) Plan's numbers.