401(k) · DOL Form 5500 · 2024

Westlake Services Holding Company 401(k) Plan

Data updated 2026-08-25

$507M
Total assets Above avg plan size
1,772
Participants Near avg headcount
97th
Percentile by assets National rank
$286,276
Avg per participant High balance/head
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Official DOL plan name: Westlake Services Holding Company Employee Stock Ownership Plan · Sponsored by Westlake Services Holding Company · California · Management of Enterprises

$507M in assets, 1,772 participants

Westlake Services Holding Company's Westlake Services Holding Company Employee Stock Ownership Plan reported $507M in total assets and 1,772 participants in its 2024 DOL Form 5500 filing, ranking in the 97th 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.

  • #1,033 in Management of Enterprises (1,133 peers)

Coverage in California

Westlake Services Holding Company Employee Stock Ownership Plan covers 1,772 participants in California, 2.8x the typical California plan (state average ~630 per filing). Assets: $507M.

#1,033
in Management of Enterprises (1,133 peers)
+2.7%
assets growth YoY
5.1×
vs typical plan assets (national mean)

Westlake Services Holding Company Employee Stock Ownership Plan's outsized position by total assets

Westlake Services Holding Company Employee Stock Ownership Plan vs every filed plan by assets

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

$507,281,805 Top 3% higher than 97% 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

Westlake Services Holding Company Employee Stock Ownership 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. Westlake Services Holding Company Employee Stock Ownership Plan lands in the large band (1,772 participants).

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Westlake Services Holding Company Employee Stock Ownership Plan reported net income rose from -$12M in the plan year 2023 filing to $13M in the plan year 2024 filing.
  • Westlake Services Holding Company Employee Stock Ownership Plan reported participants fell from 1,928 in the plan year 2023 filing to 1,772 in the plan year 2024 filing.
  • Westlake Services Holding Company Employee Stock Ownership Plan end-of-year assets rose from $494M in the plan year 2023 filing to $507M in the plan year 2024 filing.

See the national 2023→2024 release diff →

Plan-year Form 5500 strip

Filing strip 611636987 · Westlake Services Holding Company PY 2024 · 401(k)

Westlake Services Holding Company Employee Stock Ownership Plan · $507M · 1,772 · 97th

  • VS-ST $507M
  • BOY 1,772
  • SCH 97th
  • EBSA 401(k)
  • PART near Pilot Travel Centers LLC 401(k) Plan
  • TYPE ind #1033

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 Management of Enterprises retirement plans → · Plans in California →

Westlake Services Holding Company Employee Stock Ownership Plan in the asset neighbourhood

Capital Blue Cross Employee Savings PlanCapital Blue Cross Employee …$508MWestlake Services Holding Company Employee Stock Ownership PlanWestlake Services Holding Co…$507MPilot Travel Centers LLC 401(k) PlanPilot Travel Centers LLC 401…$507MK&l Gates 401(k) Plan Beta$507MJones Day Supplemental Savings PlanJones Day Supplemental Savin…$507M
End-of-year total assets ($M) among Westlake Services Holding Company Employee Stock Ownership Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

California filing particulars

Total Assets (Beginning of Year)$494M
Net Assets (End of Year)$504M
Net Income$13M
Employer EIN611636987
Plan Effective Date2001-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Westlake Services Holding Company)

Sponsor-wide plan assets over time

All Westlake Services Holding Company plans reported in each filing year

Latest sponsor-wide plan assets
$507M 0.22813813326144203% vs 2022
2024 filing year
$490M$495M$500M$505M$510M 202220232024 $506M $507M ▲ +0.2%
Year Plans Participants Total Assets
2022 1 1,810 $506M
2023 1 1,928 $494M
2024 1 1,772 $507M

Nearby 401(k) Plans in California

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

Westlake Services Holding Company Employee Stock Ownership Plan vs. nearby 401(k) plans in California, assets vs. participants Scatter plot of 6 data points. -50000050000100000150000 -200204060 Total assets ($B) Participants Westlake Services Holding Company Employee Stock Ownership Plan, Total assets ($B): 0.507281805 · Participants: 1772Westlake Services Holding Company Employee Stock Ownership 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
Westlake Services Holding Company Employee Stock Ownership Plan vs. nearby 401(k) plans in California, assets vs. participants

Westlake Services Holding Company Employee Stock Ownership Plan's out-of-state 401(k) peers by assets and headcount

Outside California, the nearest 401(k) by assets is Pilot Travel Centers LLC 401(k) Plan in TN ($507M); by covered participants it is Cooper Farms Retirement Plan in OH (1,772 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($507M here).

Similar participant headcount

Nearest other-state filings by covered participants (1,772 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 Westlake Services Holding Company Employee Stock Ownership Plan assets move in 2024? ▼
Westlake Services Holding Company Employee Stock Ownership Plan edged up modestly - up 2.7% during 2024, from $494M to $507M. Reported net income was $13M.
How have Westlake Services Holding Company plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Westlake Services Holding Company's sponsor-wide assets grew 0.2%, from $506M to $507M.
Where does Westlake Services Holding Company Employee Stock Ownership Plan rank by assets among Form 5500 filers? ▼
Westlake Services Holding Company Employee Stock Ownership Plan ranks in the 97th percentile by end-of-year assets among 123,622 plans that reported assets for plan year 2024 (in the top 5% of all filed plans by assets).
Which 401(k) plans are similar in size to Westlake Services Holding Company Employee Stock Ownership Plan? ▼
Among 401(k) plans in other states, the closest by assets is Pilot Travel Centers LLC 401(k) Plan in TN ($507M, 28,109 participants).
Which 401(k) plans cover a similar participant headcount to Westlake Services Holding Company Employee Stock Ownership Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Cooper Farms Retirement Plan in OH (1,772 participants, $130M in assets).