401(k) · DOL Form 5500 · 2023
Mantech International Corporation 401(k) Plan
Data updated 2026-08-25
- $1.5B
- Total assets Very large vs avg
- 9,454
- Participants Very large workforce
- 99th
- Percentile by assets National rank
- $162,650
- Avg per participant Above avg balance/head
Official DOL plan name: Mantech International 401(k) Plan · Sponsored by Mantech International Corporation · Virginia · Professional & Technical Services
$1.5B in assets, 9,454 participants
Mantech International Corporation's Mantech International 401(k) Plan reported $1.5B in total assets and 9,454 participants in its 2023 DOL Form 5500 filing, ranking in the 99th 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.
- #20,208 in Professional & Technical Services (20,321 peers)
Coverage in Virginia
Mantech International 401(k) Plan covers 9,454 participants in Virginia, 12x the typical Virginia plan (state average ~782 per filing). Assets: $1.5B.
- #20,208
- in Professional & Technical Services (20,321 peers)
- +21.9%
- assets growth YoY
- 15×
- vs typical plan assets (national mean)
Mantech International 401(k) Plan's outsized position by total assets
Mantech International 401(k) Plan vs every filed plan by assets
End-of-year total assets · plan year 2023 · DOL Form 5500
$1,537,693,211 Top 1% higher than 99% of 127,068 filed plans
Dashed line + filled bar = this entry, among filed plans.
Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2023
Mantech International 401(k) Plan's large-plan peer group by participant headcount
Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Mantech International 401(k) Plan lands in the large band (9,454 participants).
What changed between DOL Form 5500 filings
plan year 2022 → plan year 2023
- Mantech International 401(k) Plan reported net income rose from -$304M in the plan year 2022 filing to $254M in the plan year 2023 filing.
- Mantech International 401(k) Plan end-of-year assets rose from $1.3B in the plan year 2022 filing to $1.5B in the plan year 2023 filing.
- Mantech International 401(k) Plan reported participants fell from 10,057 in the plan year 2022 filing to 9,454 in the plan year 2023 filing.
Form 5500 schedule snapshot
Filing strip 221852179 · Mantech International Corporation PY 2023 · 401(k)
Mantech International 401(k) Plan · $1.5B · 9,454 · 99th
- PCT $1.5B
- EIN 9,454
- RANK 99th
- PHOTO 401(k)
- IND near Infineon Technologies Savings Plan
- EOY ind #20208
Stamps derive from this plan's Form 5500 line items (assets, participants, type, EIN, cohort placement) - not a quality rating of the sponsor. Read with Professional & Technical Services retirement plans → · Plans in Virginia →
Mantech International 401(k) Plan in the asset neighbourhood
Virginia filing particulars
| Total Assets (Beginning of Year) | $1.3B |
|---|---|
| Net Assets (End of Year) | $1.5B |
| Net Income | $254M |
| Employer EIN | 221852179 |
| Plan Effective Date | 1978-06-01 |
| Filing Status | FILING RECEIVED |
Sponsor Plan History (Mantech International Corporation)
Sponsor-wide plan assets over time
All Mantech International Corporation plans reported in each filing year
- Latest sponsor-wide plan assets
- $1.7B 34.57764958622625% vs 2022
- 2024 filing year
| Year | Plans | Participants | Total Assets |
|---|---|---|---|
| 2022 | 2 | 12,937 | $1.3B |
| 2023 | 2 | 9,464 | $1.5B |
| 2024 | 1 | 9,017 | $1.7B |
Nearby 401(k) Plans in Virginia
Peer 401(k) plans, same state, same plan type, ranked by total assets.
- Northrop Grumman Savings Plan $36.2B · 97,987
- 401(k) Pension Plan $15.0B · 62,467
- General Dynamics Corporation 401(k) Plan 6.0 $11.2B · 48,860
- Leidos, Inc. Retirement Plan $10.6B · 27,043
- Bae Systems Employees' Savings and Investment Plan $9.4B · 31,681
Scale composition for Mantech International 401(k) Plan
Mantech International 401(k) Plan reports $1.5B in end-of-year assets across 9,454 participants (0.012% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.010% of 93,925,755 covered participants) - about $162,650 per participant (1.2x the national average assets-per-participant) . Net income for plan year 2023 was $254M.
This plan identity (EIN 221852179, plan #002) has 3 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $1.3B to $1.7B (+35.1%) while covered participants moved from 10,057 to 9,017 . Single-year sparse filers cannot show that trail.
| Plan year | Participants | EOY assets | Filing |
|---|---|---|---|
| 2022 | 10,057 | $1.3B | Open filing |
| 2023 | 9,454 | $1.5B | This page |
| 2024 · index core | 9,017 | $1.7B | Open filing |
The same sponsor also keeps 1 other index-core plan on PlainRetire:
- Mantech International 401(k) Plan (401(k), $1.7B, 9,017 participants)
Mantech International 401(k) Plan's out-of-state 401(k) peers by assets and headcount
Outside Virginia, the nearest 401(k) by assets is Infineon Technologies Savings Plan in CA ($1.5B); by covered participants it is Savaseniorcare Savings Plan in TX (9,441 participants). Same-state nearby plans are listed separately above.
Closest by plan assets
Nearest other-state filings by tot_assets_eoy ($1.5B here).
- Infineon Technologies Savings Plan (CA) $1.5B · 3,991
- Aptiv Salaried 401(k) Plan (MI) $1.5B · 2,557
- Advance 401(k) Plan (NY) $1.5B · 7,004
- Jm Family Associates' Profit Sharing and 401(k) Plan (FL) $1.5B · 3,902
Similar participant headcount
Nearest other-state filings by covered participants (9,454 participants); asset peers above are excluded.
- Savaseniorcare Savings Plan (TX) 9,441 · 13 off
- Centerpoint Energy Savings Plan (TX) 9,430 · 24 off
- Krispy Kreme Doughnut Corporation Retirement Savings Plan (NC) 9,483 · 29 off
- Vulcan 401(k) Plan (AL) 9,487 · 33 off
DOL Form 5500 plan year 2023. Asset totals can differ widely at the same headcount; neither axis is a quality rating.