401(k) · DOL Form 5500 · 2024

System1 Opco, LLC 401(k) Plan

Data updated 2026-08-25

$42M
Total assets Below avg plan size
256
Participants Below avg headcount
82nd
Percentile by assets National rank
$162,657
Avg per participant Above avg balance/head
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Official DOL plan name: System1 LLC 401(k) Plan · Sponsored by System1 Opco, LLC · California · Professional & Technical Services

$42M in assets, 256 participants

System1 Opco, LLC's System1 LLC 401(k) Plan reported $42M in total assets and 256 participants in its 2024 DOL Form 5500 filing, ranking in the 82nd 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.

  • #16,631 in Professional & Technical Services (20,173 peers)

Coverage in California

System1 LLC 401(k) Plan covers 256 participants in California, about 41% of the average California filer (state average ~630 per filing). Assets: $42M.

#16,631
in Professional & Technical Services (20,173 peers)
+32.3%
assets growth YoY
0.4×
vs typical plan assets (national mean)

System1 LLC 401(k) Plan's outsized position by total assets

System1 LLC 401(k) Plan vs every filed plan by assets

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

$41,640,239 Top 18% higher than 82% 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

System1 LLC 401(k) Plan among mid-size filed plans by headcount

Plan-year 2024 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. System1 LLC 401(k) Plan sits mid-pack in the medium band (256 participants).

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • System1 LLC 401(k) Plan reported net income rose from $6M in the plan year 2023 filing to $10M in the plan year 2024 filing.
  • System1 LLC 401(k) Plan end-of-year assets rose from $31M in the plan year 2023 filing to $42M in the plan year 2024 filing.
  • System1 LLC 401(k) Plan reported participants fell from 325 in the plan year 2023 filing to 256 in the plan year 2024 filing.

See the national 2023→2024 release diff →

DOL schedule card

Filing strip 822387353 · System1 Opco, LLC PY 2024 · 401(k)

System1 LLC 401(k) Plan · $42M · 256 · 82nd

  • ASSETS $42M
  • PCT 256
  • EIN 82nd
  • RANK 401(k)
  • PHOTO near Astrazeneca Savings and Security Plan for Puerto Rico Employees
  • IND ind #16631

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 California →

System1 LLC 401(k) Plan in the asset neighbourhood

System1 LLC 401(k) Plan$42MAstrazeneca Savings and Security Plan for Puerto Rico EmployeesAstrazeneca Savings and Secu…$42MKyocera Sgs Precision Tools 401(k) Profit Sharing PlanKyocera Sgs Precision Tools …$42MLge Community Credit Union 401(k) Plan and TrustLge Community Credit Union 4…$42MRain Cii Carbon LLC Salaried Employees 401(k) PlanRain Cii Carbon LLC Salaried…$42M
End-of-year total assets ($M) among System1 LLC 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

California filing particulars

Total Assets (Beginning of Year)$31M
Net Assets (End of Year)$42M
Net Income$10M
Employer EIN822387353
Plan Effective Date2015-04-01
Filing StatusFILING RECEIVED

Sponsor Plan History (System1 Opco, LLC)

Sponsor-wide plan assets over time

All System1 Opco, LLC plans reported in each filing year

Latest sponsor-wide plan assets
$42M 66.05903261039313% vs 2022
2024 filing year
$20M$25M$30M$35M$40M$45M 202220232024 $25.1M $41.6M ▲ +66.0%
Year Plans Participants Total Assets
2022 1 278 $25M
2023 1 325 $31M
2024 1 256 $42M

Nearby 401(k) Plans in California

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

System1 LLC 401(k) Plan vs. nearby 401(k) plans in California, assets vs. participants Scatter plot of 6 data points. -50000050000100000150000 -200204060 Total assets ($B) Participants System1 LLC 401(k) Plan, Total assets ($B): 0.041640239 · Participants: 256System1 LLC 401(k) PlanGoogle LLC 401(k) Savings Plan, Total assets ($B): 48.738057415 · Participants: 116712Google LLC 401(k) Savings PlanOracle Corporation 401(k) Savings and Investment Plan, Total assets ($B): 31.02646504 · Participants: 58962Oracle Corporation 401(k) Savings and Investment PlanIntel 401(k) Savings Plan, Total assets ($B): 24.850880304 · Participants: 55298Intel 401(k) Savings PlanApple 401(k) Plan, Total assets ($B): 24.714519387 · Participants: 101450Apple 401(k) PlanCisco Systems,Inc. 401(k) Plan, Total assets ($B): 22.728425546 · Participants: 40452Cisco Systems,Inc. 401(k) Plan
System1 LLC 401(k) Plan vs. nearby 401(k) plans in California, assets vs. participants
Compare System1 LLC 401(k) Plan side-by-side with 3 peers →

System1 LLC 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside California, the nearest 401(k) by assets is Astrazeneca Savings and Security Plan for Puerto Rico Employees in DE ($42M); by covered participants it is The Architect 401(k) Plan the Printer, Inc. in IA (256 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (256 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 System1 LLC 401(k) Plan assets move in 2024? ▼
System1 LLC 401(k) Plan surged - up 32.3% during 2024, from $31M to $42M. Reported net income was $10M.
How have System1 Opco, LLC plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), System1 Opco, LLC's sponsor-wide assets grew 66.1%, from $25M to $42M.
Where does System1 LLC 401(k) Plan rank by assets among Form 5500 filers? ▼
System1 LLC 401(k) Plan ranks in the 82nd percentile by end-of-year assets among 123,622 plans that reported assets for plan year 2024 (in the top quartile of all filed plans by assets).
Which 401(k) plans are similar in size to System1 LLC 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Astrazeneca Savings and Security Plan for Puerto Rico Employees in DE ($42M, 53 participants).
Which 401(k) plans cover a similar participant headcount to System1 LLC 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is The Architect 401(k) Plan the Printer, Inc. in IA (256 participants, N/A in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2024.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 822387353.

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.