401(k) · DOL Form 5500 · 2023

Terrapower, LLC 401(k) Plan

Data updated 2026-08-25

$72M
Total assets Below avg plan size
406
Participants Below avg headcount
89th
Percentile by assets National rank
$177,148
Avg per participant Above avg balance/head
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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.

  • #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.

#18,296
in Professional & Technical Services (20,321 peers)
+41.3%
assets growth YoY
0.7×
vs typical plan assets (national mean)

Terrapower, LLC 401(k) Plan's outsized position by total assets

Terrapower, LLC 401(k) Plan vs every filed plan by assets

End-of-year total assets · plan year 2023 · DOL Form 5500

$71,922,095 Top 11% higher than 89% of 127,068 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 2023

Terrapower, LLC 401(k) Plan among mid-size filed plans by headcount

Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Terrapower, LLC 401(k) Plan sits mid-pack in the medium band (406 participants).

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 →

Plan-year Form 5500 strip

Filing strip 263743526 · Terrapower, LLC PY 2023 · 401(k)

Terrapower, LLC 401(k) Plan · $72M · 406 · 89th

  • BOY $72M
  • BOY 406
  • BOY 89th
  • BOY 401(k)
  • BOY near Tuv Sud America, Inc. 401(k) Savings Plan
  • BOY ind #18296

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 Professional & Technical Services retirement plans → · Plans in Washington →

Terrapower, LLC 401(k) Plan in the asset neighbourhood

Kwri 401(k) Plan$72MTnt 401(k) Plan$72MTerrapower, LLC 401(k) Plan$72MTuv Sud America, Inc. 401(k) Savings PlanTuv Sud America, Inc. 401(k)…$72MLyons & Company, Inc. Multiple Employer PlanLyons & Company, Inc. Multip…$72M
End-of-year total assets ($M) among Terrapower, LLC 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

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)

Sponsor-wide plan assets over time

All Terrapower, LLC plans reported in each filing year

Latest sponsor-wide plan assets
$97M 89.93809342748155% vs 2022
2024 filing year
$40M$60M$80M$100M$120M 202220232024 $50.9M $96.7M ▲ +89.9%
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 Scatter plot of 6 data points. -50000050000100000150000200000250000 -20020406080 Total assets ($B) Participants Terrapower, LLC 401(k) Plan, Total assets ($B): 0.071922095 · Participants: 406Terrapower, LLC 401(k) PlanThe Boeing Company 401(k) Retirement Plan, Total assets ($B): 72.246135158 · Participants: 128910The Boeing Company 401(k) Retirement PlanMicrosoft Corporation Savings Plus 401(k) Plan, Total assets ($B): 53.225853429 · Participants: 123296Microsoft Corporation Savings Plus 401(k) PlanCostco 401(k) Retirement Plan, Total assets ($B): 33.384845813 · Participants: 192744Costco 401(k) Retirement PlanT-Mobile USA, Inc. 401(k) Retirement Savings Plan & Trust, Total assets ($B): 8.338937292 · Participants: 71538T-Mobile USA, Inc. 401(k) Retirement Savings Plan & Trust401(k) Savings Plan, Total assets ($B): 8.118808679 · Participants: 87590401(k) Savings Plan
Terrapower, LLC 401(k) Plan vs. nearby 401(k) plans in Washington, assets vs. participants
Compare Terrapower, LLC 401(k) Plan side-by-side with 3 peers →

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

Outside Washington, the nearest 401(k) by assets is Tuv Sud America, Inc. 401(k) Savings Plan in MA ($72M); by covered participants it is Motion Pt Group, Inc. 401(k) Plan in NJ (406 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($72M here).

Similar participant headcount

Nearest other-state filings by covered participants (406 participants); asset peers above are excluded.

DOL Form 5500 plan year 2023. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

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).
Which 401(k) plans cover a similar participant headcount to Terrapower, LLC 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Motion Pt Group, Inc. 401(k) Plan in NJ (406 participants, N/A in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2023.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 263743526.

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.