401(k) · DOL Form 5500 · 2023

Sonendo, Inc. 401(k) Plan

Data updated 2026-08-25

$13M
Total assets Small plan by assets: 256
Participants Below avg headcount: 64th
Percentile by assets National rank: $51,074
Avg per participant Low balance/head

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Official DOL plan name: Sonendo, Inc. 401(k) Plan · Sponsored by Sonendo, Inc. · California · Manufacturing

$13M in assets, 256 participants

Sonendo, Inc.'s Sonendo, Inc. 401(k) Plan reported $13M in total assets and 256 participants in its 2023 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.

#9,728 in Manufacturing (18,722 peers)

Coverage in California

Sonendo, Inc. 401(k) Plan covers 256 participants in California, about 41% of the average California filer (state average ~630 per filing). Assets: $13M.

#9,728
in Manufacturing (18,722 peers): +21.3%
assets growth YoY

Sonendo, Inc. 401(k) Plan's mid-pack asset rank among Manufacturing and all filers

Sonendo, Inc. 401(k) Plan vs every filed plan by assets

End-of-year total assets · plan year 2023 · DOL Form 5500

$13,074,900 Top 36% higher than 64% of 127,068 filed plans

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

Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2023

Sonendo, Inc. 401(k) Plan among mid-size filed plans by headcount

Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Sonendo, Inc. 401(k) Plan sits mid-pack in the medium band (256 participants).

Micro (1-10) 35,718 filings (27%) Small (11-100) 27,089 filings (21%) Medium (101-1,000) 55,445 filings (43%) Large (1,001-10,000) 10,273 filings (8%) Mega (10,000+) 1,374 filings (1%)

Sonendo, Inc. 401(k) Plan reported net income rose from -$433K in the plan year 2022 filing to $2M in the plan year 2023 filing.
Sonendo, Inc. 401(k) Plan end-of-year assets rose from $11M in the plan year 2022 filing to $13M in the plan year 2023 filing.
Sonendo, Inc. 401(k) Plan reported participants rose from 236 in the plan year 2022 filing to 256 in the plan year 2023 filing.

See the national 2022→2023 release diff →

EBSA filing schedule strip

Filing strip 205041718 · Sonendo, Inc. PY 2023 · 401(k)

Sonendo, Inc. 401(k) Plan · $13M · 256 · 64th

EOY $13M
EOY 256
EOY 64th
EOY 401(k)
EOY near Purple Wave, Inc. Retirement Plan
EOY ind #9728

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 Manufacturing retirement plans → · Plans in California →

End-of-year total assets ($M) among Sonendo, Inc. 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

California filing particulars

Total Assets (Beginning of Year)	$11M
Net Assets (End of Year)	$13M
Net Income	$2M
Employer EIN	205041718
Plan Effective Date	2015-01-01
Filing Status	FILING RECEIVED

Sponsor Plan History (Sonendo, Inc.)

Latest sponsor-wide plan assets: $12M 15.083388434460526% vs 2022; 2024 filing year

Year	Plans	Participants	Total Assets
2022	1	236	$11M
2023	1	256	$13M
2024	1	217	$12M

Nearby 401(k) Plans in California

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

Sonendo, Inc. 401(k) Plan vs. nearby 401(k) plans in California, assets vs. participants

Wells Fargo & Company 401(k) Plan $51.8B · 193,919
Google LLC 401(k) Savings Plan $39.0B · 122,867
Oracle Corporation 401(k) Savings and Investment Plan $26.3B · 63,105
Intel 401(k) Savings Plan $22.2B · 59,863
Apple 401(k) Plan $19.8B · 106,111

Compare Sonendo, Inc. 401(k) Plan side-by-side with 3 peers →

Sonendo, Inc. 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside California, the nearest 401(k) by assets is Purple Wave, Inc. Retirement Plan in KS ($13M); by covered participants it is Nwsl Retirement Plan in IL (256 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($13M here).

Purple Wave, Inc. Retirement Plan (KS) $13M · 216
Beef Northwest Feeders, LLC Employees' Retirement Plan (OR) $13M · 379
Roller Bearing Company of America Nonexempt Section 401(k) Plan (CT) $13M · 242
Independent Pipe & Supply Corp 401(k) Savings Plan (MA) $13M · 103

Similar participant headcount

Nearest other-state filings by covered participants (256 participants); asset peers above are excluded.

Nwsl Retirement Plan (IL) 256 · 0 off
Digital.Ai 401(k) Savings & Investment Plan (MA) 256 · 0 off
Barley Snyder Savings Plan (PA) 256 · 0 off
Maxus Properties, LLC 401(k) Retirement Saving Plan (MO) 256 · 0 off

DOL Form 5500 plan year 2023. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Sonendo, Inc. 401(k) Plan assets move in 2023? ▼

Sonendo, Inc. 401(k) Plan grew sharply - up 21.3% during 2023, from $11M to $13M. Reported net income was $2M.

How have Sonendo, Inc. plan assets changed over time? ▼

Across 3 plan years on file (2022-2024), Sonendo, Inc.'s sponsor-wide assets grew 15.1%, from $11M to $12M.

Which 401(k) plans are similar in size to Sonendo, Inc. 401(k) Plan? ▼

Among 401(k) plans in other states, the closest by assets is Purple Wave, Inc. Retirement Plan in KS ($13M, 216 participants).

Which 401(k) plans cover a similar participant headcount to Sonendo, Inc. 401(k) Plan? ▼

Among 401(k) plans in other states, the closest by covered participants is Nwsl Retirement Plan in IL (256 participants, $2M in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2023.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 205041718.