401(k) · DOL Form 5500 · 2024

Service Employees International Union 401(k) Plan

Data updated 2026-08-25

$108M
Total assets Near avg plan size
1,248
Participants Near avg headcount
91st
Percentile by assets National rank
$86,799
Avg per participant Below avg balance/head
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Official DOL plan name: SEIU Affiliates' Officers and Employees Supplemental Retirement Savings 401(k) Plan · Sponsored by Service Employees International Union · District of Columbia · Other Services

$108M in assets, 1,248 participants

Service Employees International Union's SEIU Affiliates' Officers and Employees Supplemental Retirement Savings 401(k) Plan reported $108M in total assets and 1,248 participants in its 2024 DOL Form 5500 filing, ranking in the 91st 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.

  • #7,471 in Other Services (7,719 peers)

Where SEIU Affiliates' Officers and Employees Supplemental Retirement Savings 401(k) Plan sits by assets

SEIU Affiliates' Officers and Employees Supplemental Retirement Savings 401(k) Plan sits in the top 10% of all filed plans by assets, $108M for 1,248 participants (~$86,799/participant), up 16.8% in 2024.

#7,471
in Other Services (7,719 peers)
+16.8%
assets growth YoY
1.1×
vs typical plan assets (national mean)

SEIU Affiliates' Officers and Employees Supplemental Retirement Savings 401(k) Plan's outsized position by total assets

SEIU Affiliates' Officers and Employees Supplemental Retirement Savings 401(k) Plan vs every filed plan by assets

End-of-year total assets · plan year 2024 · DOL Form 5500

$108,325,418 Top 9% higher than 91% of 123,620 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 2024

SEIU Affiliates' Officers and Employees Supplemental Retirement Savings 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. SEIU Affiliates' Officers and Employees Supplemental Retirement Savings 401(k) Plan lands in the large band (1,248 participants).

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • SEIU Affiliates' Officers and Employees Supplemental Retirement Savings 401(k) Plan end-of-year assets rose from $93M in the plan year 2023 filing to $108M in the plan year 2024 filing.
  • SEIU Affiliates' Officers and Employees Supplemental Retirement Savings 401(k) Plan reported net income fell from $18M in the plan year 2023 filing to $16M in the plan year 2024 filing.
  • SEIU Affiliates' Officers and Employees Supplemental Retirement Savings 401(k) Plan reported participants rose from 1,193 in the plan year 2023 filing to 1,248 in the plan year 2024 filing.

See the national 2023→2024 release diff →

Plan-year Form 5500 strip

Filing strip 360852885 · Service Employees International Union PY 2024 · 401(k)

SEIU Affiliates' Officers and Employees Supplemental Retirement Savings 401(k) Plan · $108M · 1,248 · 91st

  • VS-ST $108M
  • BOY 1,248
  • SCH 91st
  • EBSA 401(k)
  • PART near R J. O'brien & Associates, LLC Profit Sharing and Savings Plan
  • TYPE ind #7471

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 Other Services retirement plans → · Plans in District of Columbia →

SEIU Affiliates' Officers and Employees Supplemental Retirement Savings 401(k) Plan in the asset neighbourhood

Ichor Systems, Inc. Retirement Savings PlanIchor Systems, Inc. Retireme…$108MWenger Corporation Retirement Savings PlanWenger Corporation Retiremen…$108MSEIU Affiliates' Officers and Employees Supplemental Retirement Savings 401(k) PlanSEIU Affiliates' Officers an…$108MR J. O'brien & Associates, LLC Profit Sharing and Savings PlanR J. O'brien & Associates, L…$108MPerformance Trust Retirement PlanPerformance Trust Retirement…$108M
End-of-year total assets ($M) among SEIU Affiliates' Officers and Employees Supplemental Retirement Savings 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

Scale-class filing particulars (2024)

Total Assets (Beginning of Year)$93M
Net Assets (End of Year)$108M
Net Income$16M
Employer EIN360852885
Plan Effective Date1999-08-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Service Employees International Union)

Sponsor-wide plan assets over time

All Service Employees International Union plans reported in each filing year

Latest sponsor-wide plan assets
$535M 25.260884200860534% vs 2022
2024 filing year
$400M$450M$500M$550M 202220232024 $427M $535M ▲ +25.3%
Year Plans Participants Total Assets
2022 3 4,436 $427M
2023 3 4,437 $482M
2024 3 4,559 $535M

Nearby 401(k) Plans in District of Columbia

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

SEIU Affiliates' Officers and Employees Supplemental Retirement Savings 401(k) Plan vs. nearby 401(k) plans in District of Columbia, assets vs. participants Scatter plot of 6 data points. -10000010000200003000040000 -202468 Total assets ($B) Participants SEIU Affiliates' Officers and Employees Supplemental Retirement Savings 401(k) Plan, Total assets ($B): 0.108325418 · Participants: 1248SEIU Affiliates' Officers and Employees Supplemental Retirement Savings 401(k) PlanDanaher Corporation & Subsidiaries Savings Plan, Total assets ($B): 6.46217777 · Participants: 23090Danaher Corporation & Subsidiaries Savings PlanGeico 401(k) Savings Plan, Total assets ($B): 6.227697332 · Participants: 30641Geico 401(k) Savings PlanFederal National Mortgage Association Retirement Savings Plan for Employees, Total assets ($B): 4.602350192 · Participants: 8108Federal National Mortgage Association Retirement Savings Plan for EmployeesFinra Savings Plus Plan, Total assets ($B): 2.487396082 · Participants: 4201Finra Savings Plus PlanHogan Lovells US LLP Retirement Savings Plan, Total assets ($B): 1.905912868 · Participants: 1973Hogan Lovells US LLP Retirement Savings Plan
SEIU Affiliates' Officers and Employees Supplemental Retirement Savings 401(k) Plan vs. nearby 401(k) plans in District of Columbia, assets vs. participants

SEIU Affiliates' Officers and Employees Supplemental Retirement Savings 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside District of Columbia, the nearest 401(k) by assets is R J. O'brien & Associates, LLC Profit Sharing and Savings Plan in IL ($108M); by covered participants it is Coupa Software, Inc. Retirement Trust in CA (1,248 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (1,248 participants); asset peers above are excluded.

DOL Form 5500 plan year 2024. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did SEIU Affiliates' Officers and Employees Supplemental Retirement Savings 401(k) Plan assets move in 2024?
SEIU Affiliates' Officers and Employees Supplemental Retirement Savings 401(k) Plan grew sharply - up 16.8% during 2024, from $93M to $108M. Reported net income was $16M.
How have Service Employees International Union plan assets changed over time?
Across 3 plan years on file (2022-2024), Service Employees International Union's sponsor-wide assets grew 25.3%, from $427M to $535M.
Where does SEIU Affiliates' Officers and Employees Supplemental Retirement Savings 401(k) Plan rank by assets among Form 5500 filers?
SEIU Affiliates' Officers and Employees Supplemental Retirement Savings 401(k) Plan ranks in the 91st percentile by end-of-year assets among 123,622 plans that reported assets for plan year 2024 (in the top 10% of all filed plans by assets).
Which 401(k) plans are similar in size to SEIU Affiliates' Officers and Employees Supplemental Retirement Savings 401(k) Plan?
Among 401(k) plans in other states, the closest by assets is R J. O'brien & Associates, LLC Profit Sharing and Savings Plan in IL ($108M, 373 participants).
Which 401(k) plans cover a similar participant headcount to SEIU Affiliates' Officers and Employees Supplemental Retirement Savings 401(k) Plan?
Among 401(k) plans in other states, the closest by covered participants is Coupa Software, Inc. Retirement Trust in CA (1,248 participants, $215M in assets).