401(k) · DOL Form 5500 · 2023

Zoll Medical Corporation 401(k) Plan

Data updated 2026-08-11

$648M
Total assets: 4,904
Participants: 98th
Percentile by assets: $132,228
Avg per participant

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.

98th percentile by assets (of 127,072 plans)
#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.

$648M
total plan assets (2023 EOY): 4,904
covered participants: 98th
percentile by assets (of 127,072 plans): $132,228
avg assets per participant

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 →

State

Massachusetts

Industry

Manufacturing

Participants vs Massachusetts filers

In Massachusetts, the average filing covers about 659 participants across 4,265 plans. Zoll Medical Corporation Employee Savings Plan reports 4,904 participants - 7.4x that state average ($648M EOY assets).

Massachusetts filing particulars

Total Assets (Beginning of Year)	$519M
Net Assets (End of Year)	$648M
Net Income	$130M
Employer EIN	042711626
Plan Effective Date	1992-01-01
Filing Status	FILING RECEIVED

Sponsor Plan History (Zoll Medical Corporation)

Total plan assets by year, all Zoll Medical Corporation plans on file

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

Fidelity Retirement Savings Plan $28.6B · 62,289
Liberty Mutual 401(k) Plan $10.6B · 37,052
Massachusetts Institute of Technology Supplemental 401(k) Plan $6.8B · 14,094
Boston Scientific Corporation 401(k) Retirement Savings Plan $5.8B · 19,881
Philips North America 401(k) Plan $5.8B · 19,120

Compare Zoll Medical Corporation Employee Saving… side-by-side with 3 peers →

Similar-Sized 401(k) Plans Nationally

401(k) plans in other states closest to Zoll Medical Corporation Employee Savings Plan by total assets, not by location.

Mitsubishi Chemical America Employees' Savings Plan (NC) $648M · 3,318
Kaleida Health Savings Investment 403(b) Plan (NY) $648M · 8,221
Sinclair, Inc. 401(k) Retirement Savings Plan (MD) $649M · 8,447
Ebsco Savings and Profit Sharing Plan (AL) $648M · 3,554

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).

Next read for Zoll Medical Corporation Employee Saving…

Filing takeaways

Ways to act on Zoll Medical Corporation Employee Savings Plan's numbers.

By total assets, Zoll Medical Corporation Employee Savings Plan ranks in the top 5% of all filed plans by assets. See the largest plans
Compare it side-by-side against 3 similar 401(k) plans in Massachusetts. Compare plans
Zoll Medical Corporation's sponsor-wide assets have grown 50.8% since 2022 across 3 plan years on file. More Manufacturing plans

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.