Esco Technologies 401(k) and pension plans

Esco Technologies Inc., ST. Louis, MO. EIN 43-1554045. Annual reports 2009–2025.

Esco Technologies Inc. has one active retirement plan on file, the Esco Employee Savings Investment Plan, with 3,620 participants and $503 million in assets in 2025. Vanguard has been its recordkeeper since 2009.

Active plans: 1
Participants: 3,620
Plan assets: $503 million
401(k) recordkeeper: Vanguard
Plans on file: 2
Industry: Manufacturing

All 2 plans

Active plans first

Esco Employee Savings Investment Plan

401(k)Active

Active. The plan filed its annual report for the 2025 plan year.

Plan number: 201Employer EIN 43-1554045
Participants (2025): 3,620
Net assets (2025): $503 million
Recordkeeper: Vanguard2009–2025
Plan administrator: Esco Technologies Inc.
645 Maryville Centre DR., Suite 300
ST. Louis, MO 63141
(314) 213-7200As filed for 2025
In effect since: October 1, 1990

Year by year, 2009 to 2025

Plan year	Participants	Net assets	Recordkeeper
2025	3,620	$503 million	Vanguard
2024	3,796	$508 million	Vanguard
2023	3,703	$448 million	Vanguard
2022	3,461	$389 million	Vanguard
2021	3,343	$475 million	Vanguard
2020	3,221	$419 million	Vanguard
2019	3,457	$368 million	Vanguard
2018	3,261	$296 million	Vanguard
2017	3,205	$309 million	Vanguard
2016	3,004	$247 million	Vanguard
2015	2,612	$226 million	Vanguard
2014	2,560	$224 million	Vanguard
2013	3,145	$258 million	Vanguard
2012	3,017	$215 million	Vanguard
2011	2,935	$187 million	Vanguard
2010	2,736	$171 million	Vanguard
2009	2,573	$148 million	Vanguard

Esco Technologies Inc. Retirement Plan

Pension (defined benefit), frozenClosed

Closed. The plan filed its final annual report for 2020, which means its assets were paid out or moved and it no longer exists.

Plan number: 101Employer EIN 43-1554045
Participants (2018): 1,397
Net assets (2018): $87.2 million
Administered by: WTW2009–2020
Plan administrator: Esco Technologies Inc.
9900A Clayton Road
ST. Louis, MO 63124
(314) 213-7200As filed for 2020
In effect since: October 1, 1990

Year by year, 2009 to 2020

Plan year	Participants	Net assets	Recordkeeper
2020	0	$0	WTW
2019	0	$456,576	WTW
2018	1,397	$87.2 million	WTW
2017	1,409	$75.8 million	WTW
2016	1,426	$73.3 million	WTW
2015	1,445	$62.2 million	WTW
2014	1,576	$62.9 million	WTW
2013	1,905	$73.6 million	WTW
2012	1,913	$68.7 million	WTW
2011	1,921	$63.2 million	WTW
2010	1,929	$53.0 million	WTW
2009	1,945	$51.0 million	WTW

If you had money in one of these plans

Call Vanguard (investor.vanguard.com), which runs the Esco Employee Savings Investment Plan. With your Social Security number and the plan name, it can tell you whether you still have a balance and, if not, where it went.
Or call the plan administrator listed on the plan below ((314) 213-7200). That number was filed for 2025; ask for the benefits or retirement plan office.
If your plan closed, unclaimed balances usually went to an IRA in your name, to the PBGC's missing participants program, or to state unclaimed property. Here is how to check each one.
Still stuck? The Department of Labor's benefits advisers help for free: askebsa.dol.gov or 1-866-444-3272. Never pay anyone to find your own money.

What these numbers are

They come from the Form 5500 annual reports each plan files with the Department of Labor, as the plan filed them. A plan year is usually a calendar year.
Participants counts everyone in the plan at year end: current employees, former employees who still have a balance or a pension coming, and retirees or beneficiaries being paid.
The recordkeeper is the service provider whose Schedule C entry says it keeps the plan's records. Small plans do not file Schedule C, so some plans show none.
We cannot see anyone's account. Only the plan or its recordkeeper can tell you your balance.

Sources: U.S. Department of Labor, Form 5500 datasets and PBGC trusteed plans. How we read them.

All 2 plans

Esco Employee Savings Investment Plan

Esco Technologies Inc. Retirement Plan

If you had money in one of these plans

What these numbers are

Other manufacturing employers in MO