401(k) · DOL Form 5500 · 2023

Mirion Technologies, Inc. 401(k) Plan

Data updated 2026-08-25

$172M
Total assets Near avg plan size
30
Participants Small participant base
94th
Percentile by assets National rank
$5.7M
Avg per participant High balance/head
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Official DOL plan name: Mirion Technologies 401(k) Plan · Sponsored by Mirion Technologies, Inc. · Georgia · Manufacturing

$172M in assets, 30 participants

Mirion Technologies, Inc.'s Mirion Technologies 401(k) Plan reported $172M in total assets and 30 participants in its 2023 DOL Form 5500 filing, ranking in the 94th 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.

  • #17,038 in Manufacturing (18,722 peers)

Where Mirion Technologies 401(k) Plan sits by assets

Mirion Technologies 401(k) Plan sits in the top 10% of all filed plans by assets, $172M for 30 participants (~$5.7M/participant), up 5.3% in 2023.

#17,038
in Manufacturing (18,722 peers)
+5.3%
assets growth YoY
1.7×
vs typical plan assets (national mean)

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

Mirion Technologies 401(k) Plan vs every filed plan by assets

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

$172,434,870 Top 6% higher than 94% 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

Mirion Technologies 401(k) Plan among smaller filed plans by headcount

Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Mirion Technologies 401(k) Plan is a small filing (30 participants) on this national headcount ladder.

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Mirion Technologies 401(k) Plan reported net income rose from -$24M in the plan year 2022 filing to $28M in the plan year 2023 filing.
  • Mirion Technologies 401(k) Plan reported participants fell from 795 in the plan year 2022 filing to 30 in the plan year 2023 filing.
  • Mirion Technologies 401(k) Plan end-of-year assets rose from $164M in the plan year 2022 filing to $172M in the plan year 2023 filing.

See the national 2022→2023 release diff →

Published 5500 schedule card

Filing strip 203979555 · Mirion Technologies, Inc. PY 2023 · 401(k)

Mirion Technologies 401(k) Plan · $172M · 30 · 94th

  • EBSA $172M
  • EBSA 30
  • EBSA 94th
  • EBSA 401(k)
  • EBSA near Carmeuse Lime, Inc. 401(k) Plan
  • EBSA ind #17038

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 Manufacturing retirement plans → · Plans in Georgia →

Mirion Technologies 401(k) Plan in the asset neighbourhood

Carmeuse Lime, Inc. 401(k) PlanCarmeuse Lime, Inc. 401(k) P…$172MT-Systems North America, Inc. 401(k) Retirement PlanT-Systems North America, Inc…$173MMirion Technologies 401(k) PlanMirion Technologies 401(k) P…$172MBlackhawk Network 401(k) Plan$172MFirst American Bank Corporation Profit Sharing PlanFirst American Bank Corporat…$172M
End-of-year total assets ($M) among Mirion Technologies 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

Scale-class filing particulars (2023)

Total Assets (Beginning of Year)$164M
Net Assets (End of Year)$172M
Net Income$28M
Employer EIN203979555
Plan Effective Date2004-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Mirion Technologies, Inc.)

Sponsor-wide plan assets over time

All Mirion Technologies, Inc. plans reported in each filing year

Latest sponsor-wide plan assets
$201M 22.904571024892114% vs 2022
2024 filing year
$160M$180M$200M$220M 202220232024 $164M $201M ▲ +22.9%
Year Plans Participants Total Assets
2022 1 795 $164M
2023 1 30 $172M
2024 1 2,218 $201M

Nearby 401(k) Plans in Georgia

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

Mirion Technologies 401(k) Plan vs. nearby 401(k) plans in Georgia, assets vs. participants Scatter plot of 6 data points. -2000000200000400000600000 -505101520 Total assets ($B) Participants Mirion Technologies 401(k) Plan, Total assets ($B): 0.17243487 · Participants: 30Mirion Technologies 401(k) PlanThe Teamster - UPS National 401(k) Tax Deferred Savings Plan, Total assets ($B): 17.183099452 · Participants: 510511The Teamster - UPS National 401(k) Tax Deferred Savings PlanDelta 401(k) Retirement Plan, Total assets ($B): 16.184491444 · Participants: 83136Delta 401(k) Retirement PlanDelta 401(k) Retirement Plan for Pilots, Total assets ($B): 13.670948783 · Participants: 13283Delta 401(k) Retirement Plan for PilotsUPS 401(k) Savings Plan, Total assets ($B): 13.111089897 · Participants: 102231UPS 401(k) Savings PlanThe Home Depot Futurebuilder, Total assets ($B): 12.585718117 · Participants: 413365The Home Depot Futurebuilder
Mirion Technologies 401(k) Plan vs. nearby 401(k) plans in Georgia, assets vs. participants
Compare Mirion Technologies 401(k) Plan side-by-side with 3 peers →

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

Outside Georgia, the nearest 401(k) by assets is Carmeuse Lime, Inc. 401(k) Plan in PA ($172M); by covered participants it is Hanna Plumbing & Supply Co Profit Sharing Plan in CA (30 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($172M here).

Similar participant headcount

Nearest other-state filings by covered participants (30 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 Mirion Technologies 401(k) Plan assets move in 2023? ▼
Mirion Technologies 401(k) Plan grew at a solid clip - up 5.3% during 2023, from $164M to $172M. Reported net income was $28M.
How have Mirion Technologies, Inc. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Mirion Technologies, Inc.'s sponsor-wide assets grew 22.9%, from $164M to $201M.
Where does Mirion Technologies 401(k) Plan rank by assets among Form 5500 filers? ▼
Mirion Technologies 401(k) Plan ranks in the 94th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (in the top 10% of all filed plans by assets).
Which 401(k) plans are similar in size to Mirion Technologies 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Carmeuse Lime, Inc. 401(k) Plan in PA ($172M, 968 participants).
Which 401(k) plans cover a similar participant headcount to Mirion Technologies 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Hanna Plumbing & Supply Co Profit Sharing Plan in CA (30 participants, $4M 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 203979555.

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.