401(k) · DOL Form 5500 · 2023

Zoll Medical Corporation 401(k) Plan

Data updated 2026-08-25

$648M
Total assets Above avg plan size
4,904
Participants Above avg headcount
98th
Percentile by assets National rank
$132,228
Avg per participant Near avg balance/head
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Official DOL plan name: Zoll Medical Corporation Employee Savings Plan · Sponsored by Zoll Medical Corporation · Massachusetts · Manufacturing

$648M in assets, 4,904 participants

Zoll Medical Corporation's Zoll Medical Corporation Employee Savings Plan reported $648M in total assets and 4,904 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.

  • #18,086 in Manufacturing (18,722 peers)

Coverage in Massachusetts

Zoll Medical Corporation Employee Savings Plan covers 4,904 participants in Massachusetts, 7.4x the typical Massachusetts plan (state average ~659 per filing). Assets: $648M.

#18,086
in Manufacturing (18,722 peers)
+25.0%
assets growth YoY
6.5×
vs typical plan assets (national mean)

Zoll Medical Corporation Employee Savings Plan's outsized position by total assets

Zoll Medical Corporation Employee Savings Plan vs every filed plan by assets

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

$648,443,676 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

Zoll Medical Corporation Employee Savings 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. Zoll Medical Corporation Employee Savings Plan lands in the large band (4,904 participants).

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Zoll Medical Corporation Employee Savings Plan reported net income rose from -$68M in the plan year 2022 filing to $130M in the plan year 2023 filing.
  • Zoll Medical Corporation Employee Savings Plan end-of-year assets rose from $519M in the plan year 2022 filing to $648M in the plan year 2023 filing.
  • Zoll Medical Corporation Employee Savings Plan reported participants rose from 4,830 in the plan year 2022 filing to 4,904 in the plan year 2023 filing.

See the national 2022→2023 release diff →

DOL schedule card

Filing strip 042711626 · Zoll Medical Corporation PY 2023 · 401(k)

Zoll Medical Corporation Employee Savings Plan · $648M · 4,904 · 98th

  • PART $648M
  • TYPE 4,904
  • NET 98th
  • BOOK 401(k)
  • VS-ST near Mitsubishi Chemical America Employees' Savings Plan
  • BOY ind #18086

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 Massachusetts →

Zoll Medical Corporation Employee Savings Plan in the asset neighbourhood

Sinclair, Inc. 401(k) Retirement Savings PlanSinclair, Inc. 401(k) Retire…$649MZoll Medical Corporation Employee Savings PlanZoll Medical Corporation Emp…$648MMitsubishi Chemical America Employees' Savings PlanMitsubishi Chemical America …$648MKaleida Health Savings Investment 403(b) PlanKaleida Health Savings Inves…$648MEbsco Savings and Profit Sharing PlanEbsco Savings and Profit Sha…$648M
End-of-year total assets ($M) among Zoll Medical Corporation Employee Savings Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

Massachusetts filing particulars

Total Assets (Beginning of Year)$519M
Net Assets (End of Year)$648M
Net Income$130M
Employer EIN042711626
Plan Effective Date1992-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Zoll Medical Corporation)

Sponsor-wide plan assets over time

All Zoll Medical Corporation plans reported in each filing year

Latest sponsor-wide plan assets
$782M 50.797650372914894% vs 2022
2024 filing year
$400M$500M$600M$700M$800M$900M 202220232024 $519M $782M ▲ +50.8%
Year Plans Participants Total Assets
2022 1 4,830 $519M
2023 1 4,904 $648M
2024 1 5,124 $782M

Nearby 401(k) Plans in Massachusetts

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

Zoll Medical Corporation Employee Savings Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants Scatter plot of 6 data points. 020000400006000080000 -10010203040 Total assets ($B) Participants Zoll Medical Corporation Employee Savings Plan, Total assets ($B): 0.648443676 · Participants: 4904Zoll Medical Corporation Employee Savings PlanFidelity Retirement Savings Plan, Total assets ($B): 28.649852331 · Participants: 62289Fidelity Retirement Savings PlanLiberty Mutual 401(k) Plan, Total assets ($B): 10.556596852 · Participants: 37052Liberty Mutual 401(k) PlanMassachusetts Institute of Technology Supplemental 401(k) Plan, Total assets ($B): 6.829912863 · Participants: 14094Massachusetts Institute of Technology Supplemental 401(k) PlanBoston Scientific Corporation 401(k) Retirement Savings Plan, Total assets ($B): 5.786107181 · Participants: 19881Boston Scientific Corporation 401(k) Retirement Savings PlanPhilips North America 401(k) Plan, Total assets ($B): 5.779286156 · Participants: 19120Philips North America 401(k) Plan
Zoll Medical Corporation Employee Savings Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants
Compare Zoll Medical Corporation Employee Savings Plan side-by-side with 3 peers →

Zoll Medical Corporation Employee Savings Plan's out-of-state 401(k) peers by assets and headcount

Outside Massachusetts, the nearest 401(k) by assets is Mitsubishi Chemical America Employees' Savings Plan in NC ($648M); by covered participants it is Community Health Services of Georgia Profit Sharing Plan in GA (4,901 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($648M here).

Similar participant headcount

Nearest other-state filings by covered participants (4,904 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 Zoll Medical Corporation Employee Savings Plan assets move in 2023? ▼
Zoll Medical Corporation Employee Savings Plan grew sharply - up 25.0% during 2023, from $519M to $648M. Reported net income was $130M.
How have Zoll Medical Corporation plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Zoll Medical Corporation's sponsor-wide assets grew 50.8%, from $519M to $782M.
Where does Zoll Medical Corporation Employee Savings Plan rank by assets among Form 5500 filers? ▼
Zoll Medical Corporation Employee Savings 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 Zoll Medical Corporation Employee Savings Plan? ▼
Among 401(k) plans in other states, the closest by assets is Mitsubishi Chemical America Employees' Savings Plan in NC ($648M, 3,318 participants).
Which 401(k) plans cover a similar participant headcount to Zoll Medical Corporation Employee Savings Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Community Health Services of Georgia Profit Sharing Plan in GA (4,901 participants, $133M 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 042711626.

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.