Defined Benefit (Pension) · DOL Form 5500 · 2023

Trustees of SEIU Local 1 & Participating Employers Pension Trust Pension Plan

Data updated 2026-08-25

$716M
Total assets Above avg plan size
8,890
Participants Very large workforce
98th
Percentile by assets National rank
$80,574
Avg per participant Below avg balance/head
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Official DOL plan name: SEIU Local 1 & Participating Employers Pension Trust · Sponsored by Trustees of SEIU Local 1 & Participating Employers Pension Trust · Illinois · Administrative & Support Services

$716M in assets, 8,890 participants

Trustees of SEIU Local 1 & Participating Employers Pension Trust's SEIU Local 1 & Participating Employers Pension Trust reported $716M in total assets and 8,890 participants in its 2023 DOL Form 5500 filing, ranking in the 98th 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.

  • #4,345 in Administrative & Support Services (4,372 peers)

Coverage in Illinois

SEIU Local 1 & Participating Employers Pension Trust covers 8,890 participants in Illinois, 11x the typical Illinois plan (state average ~779 per filing). Assets: $716M.

#4,345
in Administrative & Support Services (4,372 peers)
+19.1%
assets growth YoY
7.2×
vs typical plan assets (national mean)

SEIU Local 1 & Participating Employers Pension Trust's outsized position by total assets

SEIU Local 1 & Participating Employers Pension Trust vs every filed plan by assets

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

$716,299,963 Top 2% higher than 98% 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

SEIU Local 1 & Participating Employers Pension Trust'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. SEIU Local 1 & Participating Employers Pension Trust lands in the large band (8,890 participants).

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • SEIU Local 1 & Participating Employers Pension Trust reported net income rose from $49M in the plan year 2022 filing to $111M in the plan year 2023 filing.
  • SEIU Local 1 & Participating Employers Pension Trust end-of-year assets rose from $602M in the plan year 2022 filing to $716M in the plan year 2023 filing.
  • SEIU Local 1 & Participating Employers Pension Trust reported participants rose from 8,445 in the plan year 2022 filing to 8,890 in the plan year 2023 filing.

See the national 2022→2023 release diff →

EBSA filing schedule strip

Filing strip 366486542 · Trustees of SEIU Local 1 & Participating Employers Pension Trust PY 2023 · Defined Benefit (Pension)

SEIU Local 1 & Participating Employers Pension Trust · $716M · 8,890 · 98th

  • EIN $716M
  • EIN 8,890
  • EIN 98th
  • EIN Defined Benefit (Pension)
  • EIN near Regions Financial Corporation Retirement Plan for Associates
  • EIN ind #4345

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 Administrative & Support Services retirement plans → · Plans in Illinois →

SEIU Local 1 & Participating Employers Pension Trust in the asset neighbourhood

Carpenters' Pension Trust Fund - Detroit and VicinityCarpenters' Pension Trust Fu…$719MSEIU Local 1 & Participating Employers Pension TrustSEIU Local 1 & Participating…$716MRegions Financial Corporation Retirement Plan for AssociatesRegions Financial Corporatio…$716MAFL-CIO Staff Retirement Plan$713MCement Masons Pension Trust Fund for Northern CaliforniaCement Masons Pension Trust …$713M
End-of-year total assets ($M) among SEIU Local 1 & Participating Employers Pension Trust and nearest nationwide Defined Benefit (Pension) peers. Source: DOL Form 5500 plan year 2023.

Illinois filing particulars

Total Assets (Beginning of Year)$602M
Net Assets (End of Year)$712M
Net Income$111M
Employer EIN366486542
Plan Effective Date1968-12-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Trustees of SEIU Local 1 & Participating Employers Pension Trust)

Sponsor-wide plan assets over time

All Trustees of SEIU Local 1 & Participating Employers Pension Trust plans reported in each filing year

Latest sponsor-wide plan assets
$774M 28.71091839675642% vs 2022
2024 filing year
$500M$600M$700M$800M 202220232024 $602M $774M ▲ +28.7%
Year Plans Participants Total Assets
2022 1 8,445 $602M
2023 1 8,890 $716M
2024 1 8,986 $774M

Nearby Defined Benefit (Pension) Plans in Illinois

Peer Defined Benefit (Pension) plans, same state, same plan type, ranked by total assets.

SEIU Local 1 & Participating Employers Pension Trust vs. nearby Defined Benefit (Pension) plans in Illinois, assets vs. participants Scatter plot of 6 data points. 0100002000030000400005000060000 -200204060 Total assets ($B) Participants SEIU Local 1 & Participating Employers Pension Trust, Total assets ($B): 0.716299963 · Participants: 8890SEIU Local 1 & Participating Employers Pension TrustCentral States, Southeast & Southwest Areas Pension Plan, Total assets ($B): 49.680270595 · Participants: 48538Central States, Southeast & Southwest Areas Pension PlanState Farm Insurance Companies Retirement Plan for United States Employees, Total assets ($B): 35.242945747 · Participants: 45001State Farm Insurance Companies Retirement Plan for United States EmployeesUnited Food & Commercial Workers Intl Union - Industry Pension Fund, Total assets ($B): 7.965094339 · Participants: 20680United Food & Commercial Workers Intl Union - Industry Pension FundJohn Deere Pension Plan for Salaried Employees, Total assets ($B): 7.960744597 · Participants: 16346John Deere Pension Plan for Salaried EmployeesAbbott Laboratories Annuity Retirement Plan, Total assets ($B): 7.819798504 · Participants: 17382Abbott Laboratories Annuity Retirement Plan
SEIU Local 1 & Participating Employers Pension Trust vs. nearby Defined Benefit (Pension) plans in Illinois, assets vs. participants
Compare SEIU Local 1 & Participating Employers Pension Trust side-by-side with 3 peers →

Scale composition for SEIU Local 1 & Participating Employers Pension Trust

SEIU Local 1 & Participating Employers Pension Trust reports $716M in end-of-year assets across 8,890 participants (0.006% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.009% of 93,925,755 covered participants) - about $80,574 per participant (58% of the national average assets-per-participant) . Net income for plan year 2023 was $111M.

This plan identity (EIN 366486542, plan #001) has 3 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $602M to $774M (+28.7%) while covered participants moved from 8,445 to 8,986 . Single-year sparse filers cannot show that trail.

Plan year Participants EOY assets Filing
2022 8,445 $602M Open filing
2023 8,890 $716M This page
2024 · index core 8,986 $774M Open filing

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

SEIU Local 1 & Participating Employers Pension Trust's out-of-state Defined Benefit (Pension) peers by assets and headcount

Outside Illinois, the nearest Defined Benefit (Pension) by assets is Regions Financial Corporation Retirement Plan for Associates in AL ($716M); by covered participants it is Mason Tenders' District Council Pension Fund in NY (8,895 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (8,890 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 SEIU Local 1 & Participating Employers Pension Trust assets move in 2023? ▼
SEIU Local 1 & Participating Employers Pension Trust grew sharply - up 19.1% during 2023, from $602M to $716M. Reported net income was $111M.
How have Trustees of SEIU Local 1 & Participating Employers Pension Trust plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Trustees of SEIU Local 1 & Participating Employers Pension Trust's sponsor-wide assets grew 28.7%, from $602M to $774M.
Where does SEIU Local 1 & Participating Employers Pension Trust rank by assets among Form 5500 filers? ▼
SEIU Local 1 & Participating Employers Pension Trust ranks in the 98th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (in the top 5% of all filed plans by assets).
Which Defined Benefit (Pension) plans are similar in size to SEIU Local 1 & Participating Employers Pension Trust? ▼
Among Defined Benefit (Pension) plans in other states, the closest by assets is Regions Financial Corporation Retirement Plan for Associates in AL ($716M, 2,395 participants).
Which Defined Benefit (Pension) plans cover a similar participant headcount to SEIU Local 1 & Participating Employers Pension Trust? ▼
Among Defined Benefit (Pension) plans in other states, the closest by covered participants is Mason Tenders' District Council Pension Fund in NY (8,895 participants, $1.8B 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 366486542.

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.