401(k) · DOL Form 5500 · 2022

Marin Sanitary Service, Inc. 401(k) Plan

Data updated 2026-08-25

$30M
Total assets Below avg plan size
178
Participants Small participant base
83rd
Percentile by assets National rank
$171,094
Avg per participant Above avg balance/head
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Official DOL plan name: Sonoma Marin 401(k) Plan · Sponsored by Marin Sanitary Service, Inc. · California · Administrative & Support Services

$30M in assets, 178 participants

Marin Sanitary Service, Inc.'s Sonoma Marin 401(k) Plan reported $30M in total assets and 178 participants in its 2022 DOL Form 5500 filing, ranking in the 83rd 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.

  • #4,542 in Administrative & Support Services (4,927 peers)

Coverage in California

Sonoma Marin 401(k) Plan covers 178 participants in California, about 28% of the average California filer (state average ~630 per filing). Assets: $30M.

#4,542
in Administrative & Support Services (4,927 peers)
-8.6%
assets change YoY
0.3×
vs typical plan assets (national mean)

The plan reported a net loss of $3M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

Sonoma Marin 401(k) Plan's outsized position by total assets

Sonoma Marin 401(k) Plan vs every filed plan by assets

End-of-year total assets · plan year 2022 · DOL Form 5500

$30,454,716 Top 17% higher than 83% of 139,123 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 2022

Sonoma Marin 401(k) Plan among mid-size filed plans by headcount

Plan-year 2022 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Sonoma Marin 401(k) Plan sits mid-pack in the medium band (178 participants).

EBSA filing schedule strip

Filing strip 941520192 · Marin Sanitary Service, Inc. PY 2022 · 401(k)

Sonoma Marin 401(k) Plan · $30M · 178 · 83rd

  • BOY $30M
  • BOY 178
  • BOY 83rd
  • BOY 401(k)
  • BOY near Pioneer Title Company 401(k) Plan
  • BOY ind #4542

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 California →

Sonoma Marin 401(k) Plan in the asset neighbourhood

Pioneer Title Company 401(k) PlanPioneer Title Company 401(k)…$30MKps Global, LLC 401(k) Plan$30MAta 401(k) Retirement Savings PlanAta 401(k) Retirement Saving…$30MSonoma Marin 401(k) Plan$30MSavings Plan for Hourly Employees of the Yokohama Tire Manufacturing in Salem, VirginiaSavings Plan for Hourly Empl…$30M
End-of-year total assets ($M) among Sonoma Marin 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2022.

California filing particulars

Total Assets (Beginning of Year)$33M
Net Assets (End of Year)$30M
Net Income-$3M
Employer EIN941520192
Plan Effective Date1992-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Marin Sanitary Service, Inc.)

Sponsor-wide plan assets over time

All Marin Sanitary Service, Inc. plans reported in each filing year

Latest sponsor-wide plan assets
$41M 33.738735242187126% vs 2022
2024 filing year
$25M$30M$35M$40M$45M 202220232024 $30.5M $40.7M ▲ +33.8%
Year Plans Participants Total Assets
2022 1 178 $30M
2023 1 184 $36M
2024 1 185 $41M

Nearby 401(k) Plans in California

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

Sonoma Marin 401(k) Plan vs. nearby 401(k) plans in California, assets vs. participants Scatter plot of 6 data points. -50000050000100000150000200000250000 -200204060 Total assets ($B) Participants Sonoma Marin 401(k) Plan, Total assets ($B): 0.030454716 · Participants: 178Sonoma Marin 401(k) PlanWells Fargo & Company 401(k) Plan, Total assets ($B): 45.765616608 · Participants: 205865Wells Fargo & Company 401(k) PlanGoogle LLC 401(k) Savings Plan, Total assets ($B): 28.89820221 · Participants: 102963Google LLC 401(k) Savings PlanOracle Corporation 401(k) Savings and Investment Plan, Total assets ($B): 21.851716605 · Participants: 46320Oracle Corporation 401(k) Savings and Investment PlanChevron Employee Savings Investment Plan, Total assets ($B): 18.60989746 · Participants: 19946Chevron Employee Savings Investment PlanIntel 401(k) Savings Plan, Total assets ($B): 18.361585903 · Participants: 54672Intel 401(k) Savings Plan
Sonoma Marin 401(k) Plan vs. nearby 401(k) plans in California, assets vs. participants
Compare Sonoma Marin 401(k) Plan side-by-side with 3 peers →

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

Outside California, the nearest 401(k) by assets is Pioneer Title Company 401(k) Plan in ID ($30M); by covered participants it is Frontier Inc. Retirement Plan in WI (178 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (178 participants); asset peers above are excluded.

DOL Form 5500 plan year 2022. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Sonoma Marin 401(k) Plan assets move in 2022? ▼
Sonoma Marin 401(k) Plan pulled back noticeably - down 8.6% during 2022, from $33M to $30M. Reported net income was -$3M.
How have Marin Sanitary Service, Inc. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Marin Sanitary Service, Inc.'s sponsor-wide assets grew 33.7%, from $30M to $41M.
Where does Sonoma Marin 401(k) Plan rank by assets among Form 5500 filers? ▼
Sonoma Marin 401(k) Plan ranks in the 83rd percentile by end-of-year assets among 139,126 plans that reported assets for plan year 2022 (in the top quartile of all filed plans by assets).
Which 401(k) plans are similar in size to Sonoma Marin 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Pioneer Title Company 401(k) Plan in ID ($30M, 316 participants).
Which 401(k) plans cover a similar participant headcount to Sonoma Marin 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Frontier Inc. Retirement Plan in WI (178 participants, N/A in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2022.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 941520192.

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.