Peraton Technology Services 401(k) and pension plans

Peraton Technology Services Inc., Chantilly, VA. EIN 90-0622583. Annual reports 2010–2025. Also filed as The Si Organization, Inc.; Vencore, Inc.; Perspecta Inc.; Perspecta Inc.

Peraton Technology Services Inc. has one active retirement plan on file, the Vencore, Inc. Pension Plan, with 1,540 participants and $330 million in assets in 2025.

Active plans: 1
Participants: 1,540
Plan assets: $330 million
Plans on file: 2
Industry: Professional services

All 2 plans

Active plans first

Vencore, Inc. Pension Plan

Cash balance pensionActive

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

Plan number: 002Employer EIN 90-0622583
Participants (2025): 1,540
Net assets (2025): $330 million
Last listed administrator: AlightEarlier: Aon (2015–2016), Alight (2012–2014)
Plan administrator: Peraton Technology Services Inc.
15050 Conference Center Drive
Chantilly, VA 20151
(571) 313-6000As filed for 2025
In effect since: November 22, 2010

Earlier sponsors: The Si Organization, Inc. (2010–2013); Vencore, Inc. (2014–2017); Perspecta Inc. (2018–2020).

Earlier plan names: The Si Organization, Inc. Pension Plan.

Year by year, 2010 to 2025

Plan year	Participants	Net assets	Recordkeeper
2025	1,540	$330 million	not listed
2024	1,693	$321 million	not listed
2023	1,739	$333 million	not listed
2022	1,841	$330 million	Alight
2021	1,925	$423 million	Alight
2020	1,991	$424 million	Alight
2019	1,996	$402 million	not listed
2018	2,072	$374 million	not listed
2017	2,211	$412 million	not listed
2016	2,337	$393 million	Aon
2015	2,827	$395 million	Aon
2014	2,381	$416 million	Alight
2013	1,417	$405 million	Alight
2012	1,418	$379 million	Alight
2011	1,438	$348 million	not listed
2010	1,427	$348 million	not listed

Vencore 401(k) Plan

401(k)Merged

Merged. In 2019 its assets moved to the Enterprise Services 401 K Plan, sponsored by Perspecta Enterprise Solutions LLC. (EIN 75-2548221, plan 001). Accounts moved with them, so that plan is the one to contact.

Plan number: 001Employer EIN 90-0622583
Participants (2018): 6,287
Net assets (2018): $814 million
Recordkeeper: Voya2014–2019
Plan administrator: Vencore, Inc.
15052 Conference Center DR
Chantilly, VA 20151
(571) 313-6000As filed for 2019
In effect since: November 22, 2010

Earlier sponsor: The Si Organization, Inc. (2010–2013).

Earlier plan names: The Si Organization, Inc. Retirement Savings Plan; Vencore, Inc. Retirement Savings Plan.

Year by year, 2010 to 2019

Plan year	Participants	Net assets	Recordkeeper
2019	0	$0	Voya
2018	6,287	$814 million	Voya
2017	6,382	$877 million	Voya
2016	6,379	$750 million	Voya
2015	4,200	$592 million	Voya
2014	2,356	$274 million	Voya
2013	2,241	$246 million	not listed
2012	2,276	$193 million	not listed
2011	2,153	$142 million	not listed
2010	1,886	$2.0 million	not listed

If you had money in one of these plans

Or call the plan administrator listed on the plan below ((571) 313-6000). 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

Vencore, Inc. Pension Plan

Vencore 401(k) Plan

If you had money in one of these plans

What these numbers are

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