401(k) · DOL Form 5500 · 2024

Unico Mechanical Corp. 401(k) Plan

Data updated 2026-08-25

$14M
Total assets Small plan by assets: 289
Participants Below avg headcount: 64th
Percentile by assets National rank: $49,886
Avg per participant Low balance/head

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Official DOL plan name: Benicia Arsenal 401(k) Plan · Sponsored by Unico Mechanical Corp. · California · Other Services

$14M in assets, 289 participants

Unico Mechanical Corp.'s Benicia Arsenal 401(k) Plan reported $14M in total assets and 289 participants in its 2024 DOL Form 5500 filing, ranking in the 64th 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.

#6,141 in Other Services (7,719 peers)

Coverage in California

Benicia Arsenal 401(k) Plan covers 289 participants in California, about 46% of the average California filer (state average ~630 per filing). Assets: $14M.

#6,141
in Other Services (7,719 peers): +23.0%
assets growth YoY

Benicia Arsenal 401(k) Plan's mid-pack asset rank among Other Services and all filers

Benicia Arsenal 401(k) Plan vs every filed plan by assets

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

$14,416,963 Top 36% higher than 64% of 123,620 filed plans

Dashed line + filled bar = this entry, among filed plans.

Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2024

Benicia Arsenal 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. Benicia Arsenal 401(k) Plan sits mid-pack in the medium band (289 participants).

Micro (1-10) 33,766 filings (27%) Small (11-100) 26,107 filings (21%) Medium (101-1,000) 54,251 filings (43%) Large (1,001-10,000) 10,349 filings (8%) Mega (10,000+) 1,399 filings (1%)

Benicia Arsenal 401(k) Plan end-of-year assets rose from $12M in the plan year 2023 filing to $14M in the plan year 2024 filing.
Benicia Arsenal 401(k) Plan reported net income rose from $2M in the plan year 2023 filing to $3M in the plan year 2024 filing.
Benicia Arsenal 401(k) Plan reported participants rose from 261 in the plan year 2023 filing to 289 in the plan year 2024 filing.

See the national 2023→2024 release diff →

Published 5500 schedule card

Filing strip 204507493 · Unico Mechanical Corp. PY 2024 · 401(k)

Benicia Arsenal 401(k) Plan · $14M · 289 · 64th

ASSETS $14M
ASSETS 289
ASSETS 64th
ASSETS 401(k)
ASSETS near Disys Solutions, Inc. 401(k) Plan
ASSETS ind #6141

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 California →

End-of-year total assets ($M) among Benicia Arsenal 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

California filing particulars

Total Assets (Beginning of Year)	$12M
Net Assets (End of Year)	$14M
Net Income	$3M
Employer EIN	204507493
Plan Effective Date	1973-07-01
Filing Status	FILING RECEIVED

Sponsor Plan History (Unico Mechanical Corp.)

Latest sponsor-wide plan assets: $14M 54.99107592270831% vs 2022; 2024 filing year

Year	Plans	Participants	Total Assets
2022	1	214	$9M
2023	1	261	$12M
2024	1	289	$14M

Nearby 401(k) Plans in California

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

Benicia Arsenal 401(k) Plan vs. nearby 401(k) plans in California, assets vs. participants

Google LLC 401(k) Savings Plan $48.7B · 116,712
Oracle Corporation 401(k) Savings and Investment Plan $31.0B · 58,962
Intel 401(k) Savings Plan $24.9B · 55,298
Apple 401(k) Plan $24.7B · 101,450
Cisco Systems,Inc. 401(k) Plan $22.7B · 40,452

Compare Benicia Arsenal 401(k) Plan side-by-side with 3 peers →

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

Outside California, the nearest 401(k) by assets is Disys Solutions, Inc. 401(k) Plan in VA ($14M); by covered participants it is The Arbor Experts 401(k) Plan in TX (289 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($14M here).

Disys Solutions, Inc. 401(k) Plan (VA) $14M · 95
Multifamily Management Services LLC 401(k) Plan (NY) $14M · 1,106
Riggs, Abney, Neal, Turpen, Orbison & Lewis 401(k) Savings Plan (OK) $14M · 157
Swift & Staley Governmental Services 401(k) Plan (KY) $14M · 158

Similar participant headcount

Nearest other-state filings by covered participants (289 participants); asset peers above are excluded.

The Arbor Experts 401(k) Plan (TX) 289 · 0 off
Comply Technologies, Inc. 401(k) Plan (NY) 289 · 0 off
E. O. Johnson Company, Inc. 401(k) Profit Sharing Plan (WI) 289 · 0 off
Midwestern Mechanical, Inc. 401(k) Profit Sharing Plan (SD) 289 · 0 off

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 Benicia Arsenal 401(k) Plan assets move in 2024? ▼

Benicia Arsenal 401(k) Plan grew sharply - up 23.0% during 2024, from $12M to $14M. Reported net income was $3M.

How have Unico Mechanical Corp. plan assets changed over time? ▼

Across 3 plan years on file (2022-2024), Unico Mechanical Corp.'s sponsor-wide assets grew 55.0%, from $9M to $14M.

Which 401(k) plans are similar in size to Benicia Arsenal 401(k) Plan? ▼

Among 401(k) plans in other states, the closest by assets is Disys Solutions, Inc. 401(k) Plan in VA ($14M, 95 participants).

Which 401(k) plans cover a similar participant headcount to Benicia Arsenal 401(k) Plan? ▼

Among 401(k) plans in other states, the closest by covered participants is The Arbor Experts 401(k) Plan in TX (289 participants, $3M 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 204507493.