401(k) · DOL Form 5500 · 2024
Mantech International Corporation 401(k) Plan
Data updated 2026-08-25
- $1.7B
- Total assets Very large vs avg
- 9,017
- Participants Very large workforce
- 99th
- Percentile by assets National rank
- $189,042
- 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
$1.7B in assets, 9,017 participants
Mantech International Corporation's Mantech International 401(k) Plan reported $1.7B in total assets and 9,017 participants in its 2024 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.
- #20,056 in Professional & Technical Services (20,173 peers)
Coverage in Virginia
Mantech International 401(k) Plan covers 9,017 participants in Virginia, 12x the typical Virginia plan (state average ~782 per filing). Assets: $1.7B.
- #20,056
- in Professional & Technical Services (20,173 peers)
- +10.9%
- assets growth YoY
- 17×
- 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 2024 · DOL Form 5500
$1,704,591,803 Top 1% higher than 99% of 123,620 filed plans
Dashed line + filled bar = this entry, among filed plans.
Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2024
Mantech International 401(k) Plan's large-plan peer group by participant headcount
Plan-year 2024 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 (9,017 participants).
What changed between DOL Form 5500 filings
plan year 2023 → plan year 2024
- Mantech International 401(k) Plan reported net income fell from $254M in the plan year 2023 filing to $167M in the plan year 2024 filing.
- Mantech International 401(k) Plan end-of-year assets rose from $1.5B in the plan year 2023 filing to $1.7B in the plan year 2024 filing.
- Mantech International 401(k) Plan reported participants fell from 9,454 in the plan year 2023 filing to 9,017 in the plan year 2024 filing.
Published 5500 schedule card
Filing strip 221852179 · Mantech International Corporation PY 2024 · 401(k)
Mantech International 401(k) Plan · $1.7B · 9,017 · 99th
- TYPE $1.7B
- NET 9,017
- BOOK 99th
- VS-ST 401(k)
- BOY near Covington & Burling Retirement Savings Plan
- SCH ind #20056
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) | $1.5B |
|---|---|
| Net Assets (End of Year) | $1.7B |
| Net Income | $167M |
| 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 $39.5B · 104,719
- 401(k) Pension Plan $16.8B · 62,869
- General Dynamics Corporation 401(k) Plan 6.0 $12.4B · 49,414
- Capital One Financial Corporation Associate Savings Plan $12.0B · 44,933
- Leidos, Inc. Retirement Plan $11.8B · 29,734
Scale composition for Mantech International 401(k) Plan
Mantech International 401(k) Plan reports $1.7B in end-of-year assets across 9,017 participants (0.014% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.010% of 93,925,755 covered participants) - about $189,042 per participant (1.4x the national average assets-per-participant) . Net income for plan year 2024 was $167M.
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 | Open filing |
| 2024 · index core | 9,017 | $1.7B | This page |
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 Covington & Burling Retirement Savings Plan in DC ($1.7B); by covered participants it is Southern California Permanente Medical Group Tax Savings Retirement Plan in CA (9,017 participants). Same-state nearby plans are listed separately above.
Closest by plan assets
Nearest other-state filings by tot_assets_eoy ($1.7B here).
- Covington & Burling Retirement Savings Plan (DC) $1.7B · 2,138
- Elevator Constructors Union Local 1 Annuity and 401(k) Fund (NJ) $1.7B · 3,099
- Jm Family Associates' Profit Sharing and 401(k) Plan (FL) $1.7B · 4,043
- City National Bank Profit Sharing Plan (CA) $1.7B · 6,487
Similar participant headcount
Nearest other-state filings by covered participants (9,017 participants); asset peers above are excluded.
- Southern California Permanente Medical Group Tax Savings Retirement Plan (CA) 9,017 · 0 off
- Encore Group (USA) LLC Retirement Savings Plan (IL) 9,014 · 3 off
- Simplot Retirement Savings Plan (ID) 9,012 · 5 off
- Complete Care 401(k) Plan (NJ) 9,024 · 7 off
DOL Form 5500 plan year 2024. Asset totals can differ widely at the same headcount; neither axis is a quality rating.