401(k) · DOL Form 5500 · 2023

Mmcs, LLC 401(k) Plan

Data updated 2026-08-25

$6M
Total assets Small plan by assets
275
Participants Below avg headcount
48th
Percentile by assets National rank
$22,323
Avg per participant Low balance/head
PlainRetire home → About this data RSS: change history

Official DOL plan name: Mm Comfort Systems 401(k) Plan · Sponsored by Mmcs, LLC · Washington · Construction

$6M in assets, 275 participants

Mmcs, LLC's Mm Comfort Systems 401(k) Plan reported $6M in total assets and 275 participants in its 2023 DOL Form 5500 filing, ranking in the 48th 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.

  • #4,205 in Construction (9,030 peers)

Coverage in Washington

Mm Comfort Systems 401(k) Plan covers 275 participants in Washington, about 19% of the average Washington filer (state average ~1,476 per filing). Assets: $6M.

#4,205
in Construction (9,030 peers)
+32.8%
assets growth YoY

Mm Comfort Systems 401(k) Plan's mid-pack asset rank among Construction and all filers

Mm Comfort Systems 401(k) Plan vs every filed plan by assets

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

$6,138,693 48th percentile higher than 48% of 127,068 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 2023

Mm Comfort Systems 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. Mm Comfort Systems 401(k) Plan sits mid-pack in the medium band (275 participants).

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Mm Comfort Systems 401(k) Plan reported net income rose from $449K in the plan year 2022 filing to $2M in the plan year 2023 filing.
  • Mm Comfort Systems 401(k) Plan reported participants rose from 161 in the plan year 2022 filing to 275 in the plan year 2023 filing.
  • Mm Comfort Systems 401(k) Plan end-of-year assets rose from $5M in the plan year 2022 filing to $6M in the plan year 2023 filing.

See the national 2022→2023 release diff →

EBSA filing schedule strip

Filing strip 474982612 · Mmcs, LLC PY 2023 · 401(k)

Mm Comfort Systems 401(k) Plan · $6M · 275 · 48th

  • RANK $6M
  • RANK 275
  • RANK 48th
  • RANK 401(k)
  • RANK near Penna Powers, Inc. 401(k) Plan
  • RANK ind #4205

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 Construction retirement plans → · Plans in Washington →

Mm Comfort Systems 401(k) Plan in the asset neighbourhood

Mm Comfort Systems 401(k) PlanMm Comfort Systems 401(k) Pl…$6MPenna Powers, Inc. 401(k) PlanPenna Powers, Inc. 401(k) Pl…$6MAviation Security Management, LLC 401(k) PlanAviation Security Management…$6MProletariat 401(k) Plan$6MThorne Associates, Inc. 401(k) PlanThorne Associates, Inc. 401(…$6M
End-of-year total assets ($M) among Mm Comfort Systems 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

Washington filing particulars

Total Assets (Beginning of Year)$5M
Net Assets (End of Year)$6M
Net Income$2M
Employer EIN474982612
Plan Effective Date2001-05-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Mmcs, LLC)

Sponsor-wide plan assets over time

All Mmcs, LLC plans reported in each filing year

Latest sponsor-wide plan assets
$7M 57.25004701323664% vs 2022
2024 filing year
$4M$5M$6M$7M$8M 202220232024 $4.62M $7.27M ▲ +57.4%
Year Plans Participants Total Assets
2022 1 161 $5M
2023 1 275 $6M
2024 1 208 $7M

Nearby 401(k) Plans in Washington

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

Mm Comfort Systems 401(k) Plan vs. nearby 401(k) plans in Washington, assets vs. participants Scatter plot of 6 data points. -50000050000100000150000200000250000 -20020406080 Total assets ($B) Participants Mm Comfort Systems 401(k) Plan, Total assets ($B): 0.006138693 · Participants: 275Mm Comfort Systems 401(k) PlanThe Boeing Company 401(k) Retirement Plan, Total assets ($B): 72.246135158 · Participants: 128910The Boeing Company 401(k) Retirement PlanMicrosoft Corporation Savings Plus 401(k) Plan, Total assets ($B): 53.225853429 · Participants: 123296Microsoft Corporation Savings Plus 401(k) PlanCostco 401(k) Retirement Plan, Total assets ($B): 33.384845813 · Participants: 192744Costco 401(k) Retirement PlanT-Mobile USA, Inc. 401(k) Retirement Savings Plan & Trust, Total assets ($B): 8.338937292 · Participants: 71538T-Mobile USA, Inc. 401(k) Retirement Savings Plan & Trust401(k) Savings Plan, Total assets ($B): 8.118808679 · Participants: 87590401(k) Savings Plan
Mm Comfort Systems 401(k) Plan vs. nearby 401(k) plans in Washington, assets vs. participants
Compare Mm Comfort Systems 401(k) Plan side-by-side with 3 peers →

Mm Comfort Systems 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside Washington, the nearest 401(k) by assets is Penna Powers, Inc. 401(k) Plan in UT ($6M); by covered participants it is Centrus Savings Program in MD (275 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($6M here).

Similar participant headcount

Nearest other-state filings by covered participants (275 participants); asset peers above are excluded.

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 Mm Comfort Systems 401(k) Plan assets move in 2023? ▼
Mm Comfort Systems 401(k) Plan surged - up 32.8% during 2023, from $5M to $6M. Reported net income was $2M.
How have Mmcs, LLC plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Mmcs, LLC's sponsor-wide assets grew 57.3%, from $5M to $7M.
Which 401(k) plans are similar in size to Mm Comfort Systems 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Penna Powers, Inc. 401(k) Plan in UT ($6M, 49 participants).
Which 401(k) plans cover a similar participant headcount to Mm Comfort Systems 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Centrus Savings Program in MD (275 participants, $198M 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 474982612.

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.