Dassault Systemes Americas 401(k) and pension plans

Dassault Systemes Americas Corp., Waltham, MA. EIN 51-0379588. Annual reports 2009–2025.

Dassault Systemes Americas Corp. has one active retirement plan on file, the Dassault Systemes Employee Savings Plan Plus, with 7,926 participants and $2.4 billion in assets in 2025. Fidelity has been its recordkeeper since 2009.

Active plans: 1
Participants: 7,926
Plan assets: $2.4 billion
401(k) recordkeeper: Fidelity
Plans on file: 2
Industry: Professional services

All 2 plans

Active plans first

Dassault Systemes Employee Savings Plan Plus

401(k)Active

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

Plan number: 001Employer EIN 51-0379588
Participants (2025): 7,926
Net assets (2025): $2.4 billion
Recordkeeper: Fidelity2009–2025
Plan administrator: Dassault Systemes Americas Corp.
175 Wyman Street, Mail Stop DS 45
Waltham, MA 02451
(781) 810-5589As filed for 2025
In effect since: June 29, 1992

Plans merged into this one: Dassault Systemes Americas Corp. Employee Retirement Plan (2019); Medidata Solutions, Inc. 401(k) Retirement Savings Plan (2020).

Year by year, 2009 to 2025

Plan year	Participants	Net assets	Recordkeeper
2025	7,926	$2.4 billion	Fidelity
2024	8,262	$2.1 billion	Fidelity
2023	8,208	$1.8 billion	Fidelity
2022	8,089	$1.5 billion	Fidelity
2021	7,579	$1.7 billion	Fidelity
2020	5,367	$1.5 billion	Fidelity
2019	4,652	$1.1 billion	Fidelity
2018	4,381	$808 million	Fidelity
2017	4,128	$804 million	Fidelity
2016	4,015	$642 million	Fidelity
2015	3,976	$565 million	Fidelity
2014	3,653	$542 million	Fidelity
2013	3,226	$459 million	Fidelity
2012	3,300	$353 million	Fidelity
2011	2,465	$217 million	Fidelity
2010	2,384	$201 million	Fidelity
2009	2,163	$164 million	Fidelity

Dassault Systemes Americas Corp. Employee Retirement Plan

Pension (defined benefit), frozenMerged

Merged. In 2019 its assets moved to the Dassault Systemes Employee Savings Plan Plus, sponsored by Dassault Systemes Americas Corp. (EIN 51-0379588, plan 001). Accounts moved with them, so that plan is the one to contact.

Plan number: 002Employer EIN 51-0379588
Participants (2018): 448
Net assets (2018): $57.4 million
Plan administrator: Dassault Systemes Americas Corp.
175 Wyman Street
Waltham, MA 02451
(781) 810-3000As filed for 2019
In effect since: June 29, 1992

Year by year, 2009 to 2019

Plan year	Participants	Net assets	Recordkeeper
2019	0	$0	not listed
2018	448	$57.4 million	not listed
2017	449	$58.2 million	not listed
2016	450	$45.9 million	not listed
2015	452	$43.2 million	not listed
2014	623	$49.8 million	not listed
2013	623	$45.3 million	not listed
2012	623	$38.9 million	not listed
2011	627	$33.3 million	not listed
2010	628	$27.9 million	not listed
2009	714	$24.4 million	not listed

If you had money in one of these plans

Call Fidelity (fidelity.com), which runs the Dassault Systemes Employee Savings Plan Plus. 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 ((781) 810-5589). That number was filed for 2025; ask for the benefits or retirement plan office.
If your plan was merged, your account moved with it. Follow the link on the plan to the plan it went into, and contact that 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

Dassault Systemes Employee Savings Plan Plus

Dassault Systemes Americas Corp. Employee Retirement Plan

If you had money in one of these plans

What these numbers are

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