Amentum Services 401(k) plan

Amentum Services, Inc., Chantilly, VA. EIN 27-1628265. Annual reports 2009–2024. Also filed as Urs Federal Technical Services, Inc.; Urs Federal Technical Services, Inc; Urs Federal Services, Inc.; AECOM Global II, LLC.

Amentum Services, Inc. has one active retirement plan on file, the Amentum 401(k) Retirement Plan, with 44,630 participants and $2.5 billion in assets in 2024. Fidelity has been its recordkeeper since 2014. No traditional pension plan appears in Amentum Services's filings since 2009.

Active plans: 1
Participants: 44,630
Plan assets: $2.5 billion
401(k) recordkeeper: Fidelity
Plans on file: 1
Industry: Professional services

The plan

Amentum 401(k) Retirement Plan

401(k)Active

Active. The plan filed its annual report for the 2024 plan year.

Plan number: 001Employer EIN 27-1628265
Participants (2024): 44,630
Net assets (2024): $2.5 billion
Recordkeeper: Fidelity2014–2024
Plan administrator: Amentum Services, Inc.
4800 Westfields BLVD, Suite 400
Chantilly, VA 20151
(301) 944-3100As filed for 2024
In effect since: January 1, 2011

Plans merged into this one: Urs Corporation 401(k) Retirement Plan (2015); Pacific Architects and Engineers, LLC 401(k) Savings Plan (2022); Dyncorp International Savings Plan (2021); Amentum Contract Employee 401(k) Plan (2021); Centra Technology, Inc. 401(k) Plan (2021).

Earlier sponsors: Urs Federal Technical Services, Inc. (2009–2012); Urs Federal Services, Inc. (2013–2016); AECOM Global II, LLC (2014–2017); AECOM E&c Holdings, Inc. (2018–2019).

Earlier plan names: Eg & G Technical Services, Inc. Employees Retirement Plan; Urs Federal Technical Services, Inc. Employees Retirement Plan; Urs Corporation 401(k) Retirement Plan for Specified Contract Employees; Urs Federal Services, Inc. Employees Retirement Plan.

Year by year, 2009 to 2024

Plan year	Participants	Net assets	Recordkeeper
2024	44,630	$2.5 billion	Fidelity
2023	3,478	$250 million	not listed
2022	3,552	$228 million	not listed
2021	3,632	$302 million	not listed
2020	3,672	$286 million	not listed
2019	3,736	$275 million	not listed
2018	3,772	$246 million	not listed
2017	3,804	$279 million	not listed
2016	3,861	$254 million	not listed
2015	14,477	$235 million	Fidelity
2014	13,053	$225 million	Fidelity
2013	4,905	$271 million	not listed
2012	4,954	$242 million	not listed
2011	4,943	$207 million	not listed
2010	5,043	$192 million	not listed
2009	5,197	$151 million	not listed

If you had money in one of these plans

Call Fidelity (fidelity.com), which runs the Amentum 401(k) Retirement 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 ((301) 944-3100). That number was filed for 2024; ask for the benefits or retirement plan office.
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.

The plan

Amentum 401(k) Retirement Plan

If you had money in one of these plans

What these numbers are

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