401(k) · DOL Form 5500 · 2023

Durham School Services, L.P. 401(k) Plan

Data updated 2026-08-25

$125M
Total assets Near avg plan size
20,428
Participants Very large workforce
93rd
Percentile by assets National rank
$6,141
Avg per participant Low balance/head
PlainRetire home → About this data RSS: change history

Official DOL plan name: National Express Safe Harbor 401(k) Plan · Sponsored by Durham School Services, L.P. · Illinois · Transportation & Warehousing

$125M in assets, 20,428 participants

Durham School Services, L.P.'s National Express Safe Harbor 401(k) Plan reported $125M in total assets and 20,428 participants in its 2023 DOL Form 5500 filing, ranking in the 93rd 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.

  • #3,047 in Transportation & Warehousing (3,362 peers)

Coverage in Illinois

National Express Safe Harbor 401(k) Plan covers 20,428 participants in Illinois, 26x the typical Illinois plan (state average ~779 per filing). Assets: $125M.

#3,047
in Transportation & Warehousing (3,362 peers)
+21.3%
assets growth YoY
1.3×
vs typical plan assets (national mean)

National Express Safe Harbor 401(k) Plan's outsized position by total assets

National Express Safe Harbor 401(k) Plan vs every filed plan by assets

End-of-year total assets · plan year 2023 · DOL Form 5500

$125,439,833 Top 7% higher than 93% of 127,068 filed plans

This plan $0 $2,050,000,000 every filed plan with reported assets, bucketed by value

Dashed line + filled bar = this entry, among filed plans.

Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2023

National Express Safe Harbor 401(k) Plan's mega-plan peer group by participant headcount

Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. National Express Safe Harbor 401(k) Plan is a mega filing (20,428 participants), the rightmost band on the breakdown.

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • National Express Safe Harbor 401(k) Plan reported net income rose from -$21M in the plan year 2022 filing to $22M in the plan year 2023 filing.
  • National Express Safe Harbor 401(k) Plan end-of-year assets rose from $103M in the plan year 2022 filing to $125M in the plan year 2023 filing.
  • National Express Safe Harbor 401(k) Plan reported participants rose from 18,623 in the plan year 2022 filing to 20,428 in the plan year 2023 filing.

See the national 2022→2023 release diff →

EBSA filing schedule strip

Filing strip 953320487 · Durham School Services, L.P. PY 2023 · 401(k)

National Express Safe Harbor 401(k) Plan · $125M · 20,428 · 93rd

  • TYPE $125M
  • NET 20,428
  • BOOK 93rd
  • VS-ST 401(k)
  • BOY near The Hackett Group, Inc. 401(k) Plan
  • SCH ind #3047

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 Transportation & Warehousing retirement plans → · Plans in Illinois →

National Express Safe Harbor 401(k) Plan in the asset neighbourhood

Seacorp, LLC 401(k) Profit Sharing PlanSeacorp, LLC 401(k) Profit S…$126MAmerican Petroleum Institute 401(k) Defined Contribution PlanAmerican Petroleum Institute…$125MThe Hackett Group, Inc. 401(k) PlanThe Hackett Group, Inc. 401(…$125MNational Express Safe Harbor 401(k) PlanNational Express Safe Harbor…$125MOak View Group 401(k) Plan$125M
End-of-year total assets ($M) among National Express Safe Harbor 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

Illinois filing particulars

Total Assets (Beginning of Year)$103M
Net Assets (End of Year)$125M
Net Income$22M
Employer EIN953320487
Plan Effective Date2003-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Durham School Services, L.P.)

Sponsor-wide plan assets over time

All Durham School Services, L.P. plans reported in each filing year

Latest sponsor-wide plan assets
$130M 25.59729083617735% vs 2022
2024 filing year
$100M$110M$120M$130M$140M 202220232024 $103M $130M ▲ +25.6%
Year Plans Participants Total Assets
2022 1 18,623 $103M
2023 1 20,428 $125M
2024 1 18,709 $130M

Nearby 401(k) Plans in Illinois

Peer 401(k) plans, same state, same plan type, ranked by total assets.

National Express Safe Harbor 401(k) Plan vs. nearby 401(k) plans in Illinois, assets vs. participants Scatter plot of 6 data points. 050000100000150000200000250000 -505101520 Total assets ($B) Participants National Express Safe Harbor 401(k) Plan, Total assets ($B): 0.125439833 · Participants: 20428National Express Safe Harbor 401(k) PlanAccenture United States 401(k) Match Savings Plan, Total assets ($B): 17.594548115 · Participants: 69974Accenture United States 401(k) Match Savings PlanState Farm 401(k) Savings Plan, Total assets ($B): 16.935002041 · Participants: 60246State Farm 401(k) Savings PlanAbbott Laboratories Stock Retirement Plan, Total assets ($B): 14.496191 · Participants: 38012Abbott Laboratories Stock Retirement PlanUnited Airlines Pilot Retirement Account Plan, Total assets ($B): 14.367975914 · Participants: 14959United Airlines Pilot Retirement Account PlanWalgreens Retirement Savings Plan, Total assets ($B): 13.444551767 · Participants: 235331Walgreens Retirement Savings Plan
National Express Safe Harbor 401(k) Plan vs. nearby 401(k) plans in Illinois, assets vs. participants
Compare National Express Safe Harbor 401(k) Plan side-by-side with 3 peers →

Scale composition for National Express Safe Harbor 401(k) Plan

National Express Safe Harbor 401(k) Plan reports $125M in end-of-year assets across 20,428 participants (0.001% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.022% of 93,925,755 covered participants) - about $6,141 per participant (4% of the national average assets-per-participant) . Net income for plan year 2023 was $22M.

This plan identity (EIN 953320487, plan #003) has 3 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $103M to $130M (+25.6%) while covered participants moved from 18,623 to 18,709 . Single-year sparse filers cannot show that trail.

Plan year Participants EOY assets Filing
2022 18,623 $103M Open filing
2023 20,428 $125M This page
2024 · index core 18,709 $130M Open filing

The same sponsor also keeps 1 other index-core plan on PlainRetire:

National Express Safe Harbor 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside Illinois, the nearest 401(k) by assets is The Hackett Group, Inc. 401(k) Plan in FL ($125M); by covered participants it is Eighth District Electrical Pension Fund Annuity Plan in NV (20,426 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($125M here).

Similar participant headcount

Nearest other-state filings by covered participants (20,428 participants); asset peers above are excluded.

DOL Form 5500 plan year 2023. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did National Express Safe Harbor 401(k) Plan assets move in 2023? ▼
National Express Safe Harbor 401(k) Plan grew sharply - up 21.3% during 2023, from $103M to $125M. Reported net income was $22M.
How have Durham School Services, L.P. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Durham School Services, L.P.'s sponsor-wide assets grew 25.6%, from $103M to $130M.
Where does National Express Safe Harbor 401(k) Plan rank by assets among Form 5500 filers? ▼
National Express Safe Harbor 401(k) Plan ranks in the 93rd percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (in the top 10% of all filed plans by assets).
Which 401(k) plans are similar in size to National Express Safe Harbor 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is The Hackett Group, Inc. 401(k) Plan in FL ($125M, 662 participants).
Which 401(k) plans cover a similar participant headcount to National Express Safe Harbor 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Eighth District Electrical Pension Fund Annuity Plan in NV (20,426 participants, $981M in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2023.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 953320487.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from U.S. Department of Labor Form 5500 filings (EBSA). See our methodology for details.