401(k) · DOL Form 5500 · 2023

Instrumentation Laboratory 401(k) Plan

Data updated 2026-08-11

$462M
Total assets: 2,401
Participants: 97th
Percentile by assets: $192,473
Avg per participant

Official DOL plan name: Instrumentation Laboratory Savings Plan · Sponsored by Instrumentation Laboratory · Massachusetts · Manufacturing

$462M in assets, 2,401 participants

Instrumentation Laboratory's Instrumentation Laboratory Savings Plan reported $462M in total assets and 2,401 participants in its 2023 DOL Form 5500 filing, ranking in the 97th 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.

97th percentile by assets (of 127,072 plans)
#17,895 in Manufacturing (18,722 peers)

Coverage in Massachusetts

Instrumentation Laboratory Savings Plan covers 2,401 participants in Massachusetts, 3.6x the typical Massachusetts plan (state average ~659 per filing). Assets: $462M.

$462M
total plan assets (2023 EOY): 2,401
covered participants: 97th
percentile by assets (of 127,072 plans): $192,473
avg assets per participant

Instrumentation Laboratory Savings Plan reported net income rose from -$72M in the plan year 2022 filing to $70M in the plan year 2023 filing.
Instrumentation Laboratory Savings Plan end-of-year assets rose from $359M in the plan year 2022 filing to $462M in the plan year 2023 filing.
Instrumentation Laboratory Savings Plan reported participants rose from 1,946 in the plan year 2022 filing to 2,401 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. Instrumentation Laboratory Savings Plan reports 2,401 participants - 3.6x that state average ($462M EOY assets).

Massachusetts filing particulars

Total Assets (Beginning of Year)	$359M
Net Assets (End of Year)	$462M
Net Income	$70M
Employer EIN	020448199
Plan Effective Date	1991-11-01
Filing Status	FILING RECEIVED

Sponsor Plan History (Instrumentation Laboratory)

Total plan assets by year, all Instrumentation Laboratory plans on file

Year	Plans	Participants	Total Assets
2022	2	2,049	$374M
2023	2	2,498	$477M
2024	2	2,588	$552M

Nearby 401(k) Plans in Massachusetts

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

Instrumentation Laboratory 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 Instrumentation Laboratory Savings Plan side-by-side with 3 peers →

Similar-Sized 401(k) Plans Nationally

401(k) plans in other states closest to Instrumentation Laboratory Savings Plan by total assets, not by location.

Vedder Price P.C. Profit Sharing and Retirement Plan (IL) $462M · 581
Symetra Financial Retirement Savings Plan (WA) $462M · 2,151
Westfield Employee Retirement Savings Plan (OH) $462M · 2,565
Prevea Clinic, Inc. 401(k) and Retirement Plan (WI) $462M · 2,411

Frequently Asked Questions

How did Instrumentation Laboratory Savings Plan assets move in 2023? ▼

Instrumentation Laboratory Savings Plan grew sharply - up 28.8% during 2023, from $359M to $462M. Reported net income was $70M.

How have Instrumentation Laboratory plan assets changed over time? ▼

Across 3 plan years on file (2022-2024), Instrumentation Laboratory's sponsor-wide assets grew 47.5%, from $374M to $552M.

Where does Instrumentation Laboratory Savings Plan rank by assets among Form 5500 filers? ▼

Instrumentation Laboratory Savings Plan ranks in the 97th 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 Instrumentation Laboratory Savings Plan? ▼

Among 401(k) plans in other states, the closest by assets is Vedder Price P.C. Profit Sharing and Retirement Plan in IL ($462M, 581 participants).

Next read for Instrumentation Laboratory Savings Plan

Filing takeaways

Ways to act on Instrumentation Laboratory Savings Plan's numbers.

By total assets, Instrumentation Laboratory 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
Instrumentation Laboratory's sponsor-wide assets have grown 47.5% 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 020448199.