401(k) · DOL Form 5500 · 2023

Mission Support and Test Services LLC 401(k) Plan

Data updated 2026-08-25

$530M
Total assets Above avg plan size
2,104
Participants Near avg headcount
98th
Percentile by assets National rank
$251,987
Avg per participant Above avg balance/head
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Official DOL plan name: Mission Support and Test Services LLC (Msts) Employee 401(k) Plan · Sponsored by Mission Support and Test Services LLC · Nevada · Professional & Technical Services

$530M in assets, 2,104 participants

Mission Support and Test Services LLC's Mission Support and Test Services LLC (Msts) Employee 401(k) Plan reported $530M in total assets and 2,104 participants in its 2023 DOL Form 5500 filing, ranking in the 98th 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.

  • #19,977 in Professional & Technical Services (20,321 peers)

Coverage in Nevada

Mission Support and Test Services LLC (Msts) Employee 401(k) Plan covers 2,104 participants in Nevada, 3.3x the typical Nevada plan (state average ~636 per filing). Assets: $530M.

#19,977
in Professional & Technical Services (20,321 peers)
+24.1%
assets growth YoY
5.3×
vs typical plan assets (national mean)

Mission Support and Test Services LLC (Msts) Employee 401(k) Plan's outsized position by total assets

Mission Support and Test Services LLC (Msts) Employee 401(k) Plan vs every filed plan by assets

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

$530,180,994 Top 2% higher than 98% 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

Mission Support and Test Services LLC (Msts) Employee 401(k) Plan's large-plan peer group by participant headcount

Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Mission Support and Test Services LLC (Msts) Employee 401(k) Plan lands in the large band (2,104 participants).

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Mission Support and Test Services LLC (Msts) Employee 401(k) Plan reported net income rose from -$112M in the plan year 2022 filing to $103M in the plan year 2023 filing.
  • Mission Support and Test Services LLC (Msts) Employee 401(k) Plan end-of-year assets rose from $427M in the plan year 2022 filing to $530M in the plan year 2023 filing.
  • Mission Support and Test Services LLC (Msts) Employee 401(k) Plan reported participants rose from 2,010 in the plan year 2022 filing to 2,104 in the plan year 2023 filing.

See the national 2022→2023 release diff →

DOL schedule card

Filing strip 810705502 · Mission Support and Test Services LLC PY 2023 · 401(k)

Mission Support and Test Services LLC (Msts) Employee 401(k) Plan · $530M · 2,104 · 98th

  • BOY $530M
  • BOY 2,104
  • BOY 98th
  • BOY 401(k)
  • BOY near Coca-Cola Bottling Company United, Inc. 401(k) Plan
  • BOY ind #19977

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 Nevada →

Mission Support and Test Services LLC (Msts) Employee 401(k) Plan in the asset neighbourhood

Mission Support and Test Services LLC (Msts) Employee 401(k) PlanMission Support and Test Ser…$530MCoca-Cola Bottling Company United, Inc. 401(k) PlanCoca-Cola Bottling Company U…$530MThe Daikin 401(k) Plan$530MBrotherhood of Locomotive Engineers and Trainmen Svgs401 for Employees of Norfolk Southern CarriersBrotherhood of Locomotive En…$530MVinson & Elkins L. L. P. Retirement Plan aVinson & Elkins L. L. P. Ret…$529M
End-of-year total assets ($M) among Mission Support and Test Services LLC (Msts) Employee 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

Nevada filing particulars

Total Assets (Beginning of Year)$427M
Net Assets (End of Year)$530M
Net Income$103M
Employer EIN810705502
Plan Effective Date1972-07-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Mission Support and Test Services LLC)

Sponsor-wide plan assets over time

All Mission Support and Test Services LLC plans reported in each filing year

Latest sponsor-wide plan assets
$1.2B 23.00076903468601% vs 2022
2024 filing year
$0.9B$1B$1.1B$1.2B$1.3B 202220232024 $0.97B $1.2B ▲ +23.7%
Year Plans Participants Total Assets
2022 3 4,560 $974M
2023 4 4,838 $1.2B
2024 3 5,756 $1.2B

Nearby 401(k) Plans in Nevada

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

Mission Support and Test Services LLC (Msts) Employee 401(k) Plan vs. nearby 401(k) plans in Nevada, assets vs. participants Scatter plot of 6 data points. 010000200003000040000 00.511.522.5 Total assets ($B) Participants Mission Support and Test Services LLC (Msts) Employee 401(k) Plan, Total assets ($B): 0.530180994 · Participants: 2104Mission Support and Test Services LLC (Msts) Employee 401(k) PlanThe Mgm Resorts 401(k) Savings Plan, Total assets ($B): 2.01117919 · Participants: 28142The Mgm Resorts 401(k) Savings PlanCaesars Entertainment, Inc 401(k) Plan, Total assets ($B): 1.82487518 · Participants: 29628Caesars Entertainment, Inc 401(k) PlanBarrick Retirement Plan, Total assets ($B): 1.19282548 · Participants: 6964Barrick Retirement PlanNv Energy 401(k) Plan, Total assets ($B): 0.999258908 · Participants: 2475Nv Energy 401(k) PlanEighth District Electrical Pension Fund Annuity Plan, Total assets ($B): 0.98131609 · Participants: 20426Eighth District Electrical Pension Fund Annuity Plan
Mission Support and Test Services LLC (Msts) Employee 401(k) Plan vs. nearby 401(k) plans in Nevada, assets vs. participants

Mission Support and Test Services LLC (Msts) Employee 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside Nevada, the nearest 401(k) by assets is Coca-Cola Bottling Company United, Inc. 401(k) Plan in AL ($530M); by covered participants it is Jack Cooper 401(k) Plan in MO (2,104 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (2,104 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 Mission Support and Test Services LLC (Msts) Employee 401(k) Plan assets move in 2023? ▼
Mission Support and Test Services LLC (Msts) Employee 401(k) Plan grew sharply - up 24.1% during 2023, from $427M to $530M. Reported net income was $103M.
How have Mission Support and Test Services LLC plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Mission Support and Test Services LLC's sponsor-wide assets grew 23.0%, from $974M to $1.2B.
Where does Mission Support and Test Services LLC (Msts) Employee 401(k) Plan rank by assets among Form 5500 filers? ▼
Mission Support and Test Services LLC (Msts) Employee 401(k) Plan ranks in the 98th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (in the top 5% of all filed plans by assets).
Which 401(k) plans are similar in size to Mission Support and Test Services LLC (Msts) Employee 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Coca-Cola Bottling Company United, Inc. 401(k) Plan in AL ($530M, 9,248 participants).
Which 401(k) plans cover a similar participant headcount to Mission Support and Test Services LLC (Msts) Employee 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Jack Cooper 401(k) Plan in MO (2,104 participants, $82M in assets).