401(k) · DOL Form 5500 · 2024

Black Diamond Plumbing & Mechani 401(k) Plan

Data updated 2026-08-25

$7M
Total assets Small plan by assets
110
Participants Small participant base
49th
Percentile by assets National rank
$66,244
Avg per participant Below avg balance/head
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Official DOL plan name: Black Diamond Plumbing & Mechanical Inc 401(k) Plan · Sponsored by Black Diamond Plumbing & Mechani · Illinois · Construction

$7M in assets, 110 participants

Black Diamond Plumbing & Mechani's Black Diamond Plumbing & Mechanical Inc 401(k) Plan reported $7M in total assets and 110 participants in its 2024 DOL Form 5500 filing, ranking in the 49th 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.

  • #4,316 in Construction (9,039 peers)

Coverage in Illinois

Black Diamond Plumbing & Mechanical Inc 401(k) Plan covers 110 participants in Illinois, about 14% of the average Illinois filer (state average ~779 per filing). Assets: $7M.

#4,316
in Construction (9,039 peers)
+17.9%
assets growth YoY

Black Diamond Plumbing & Mechanical Inc 401(k) Plan's mid-pack asset rank among Construction and all filers

Black Diamond Plumbing & Mechanical Inc 401(k) Plan vs every filed plan by assets

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

$7,286,880 49th percentile higher than 49% 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

Black Diamond Plumbing & Mechanical Inc 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. Black Diamond Plumbing & Mechanical Inc 401(k) Plan sits mid-pack in the medium band (110 participants).

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Black Diamond Plumbing & Mechanical Inc 401(k) Plan end-of-year assets rose from $6M in the plan year 2023 filing to $7M in the plan year 2024 filing.
  • Black Diamond Plumbing & Mechanical Inc 401(k) Plan reported net income fell from $1M in the plan year 2023 filing to $1M in the plan year 2024 filing.
  • Black Diamond Plumbing & Mechanical Inc 401(k) Plan reported participants rose from 108 in the plan year 2023 filing to 110 in the plan year 2024 filing.

See the national 2023→2024 release diff →

Plan-year Form 5500 strip

Filing strip 371381904 · Black Diamond Plumbing & Mechani PY 2024 · 401(k)

Black Diamond Plumbing & Mechanical Inc 401(k) Plan · $7M · 110 · 49th

  • SCH $7M
  • SCH 110
  • SCH 49th
  • SCH 401(k)
  • SCH near Confluence Outdoor, Inc. 401(k) Plan
  • SCH ind #4316

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 Illinois →

Black Diamond Plumbing & Mechanical Inc 401(k) Plan in the asset neighbourhood

Black Diamond Plumbing & Mechanical Inc 401(k) PlanBlack Diamond Plumbing & Mec…$7MConfluence Outdoor, Inc. 401(k) PlanConfluence Outdoor, Inc. 401…$7MMission Pools of Escondido 401(k) PlanMission Pools of Escondido 4…$7MVacuum Truck Rentals, LLC 401(k) PlanVacuum Truck Rentals, LLC 40…$7MBright and Brown Employees Savings PlanBright and Brown Employees S…$7M
End-of-year total assets ($M) among Black Diamond Plumbing & Mechanical Inc 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

Illinois filing particulars

Total Assets (Beginning of Year)$6M
Net Assets (End of Year)$7M
Net Income$1M
Employer EIN371381904
Plan Effective Date2004-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Black Diamond Plumbing & Mechani)

Sponsor-wide plan assets over time

All Black Diamond Plumbing & Mechani plans reported in each filing year

Latest sponsor-wide plan assets
$7M 50.27286512401582% vs 2022
2024 filing year
$4M$5M$6M$7M$8M 202220232024 $4.85M $7.29M ▲ +50.3%
Year Plans Participants Total Assets
2022 1 110 $5M
2023 1 108 $6M
2024 1 110 $7M

Nearby 401(k) Plans in Illinois

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

Black Diamond Plumbing & Mechanical Inc 401(k) Plan vs. nearby 401(k) plans in Illinois, assets vs. participants Scatter plot of 6 data points. -1000000100000200000300000 -50510152025 Total assets ($B) Participants Black Diamond Plumbing & Mechanical Inc 401(k) Plan, Total assets ($B): 0.00728688 · Participants: 110Black Diamond Plumbing & Mechanical Inc 401(k) PlanAccenture United States 401(k) Match and Savings Plan, Total assets ($B): 21.302643276 · Participants: 66965Accenture United States 401(k) Match and Savings PlanState Farm 401(k) Savings Plan, Total assets ($B): 19.010099056 · Participants: 63297State Farm 401(k) Savings PlanUnited Airlines Pilot Retirement Account Plan, Total assets ($B): 16.835964452 · Participants: 16659United Airlines Pilot Retirement Account PlanAbbott Laboratories Stock Retirement Plan, Total assets ($B): 15.755668 · Participants: 38229Abbott Laboratories Stock Retirement PlanWalgreens Retirement Savings Plan, Total assets ($B): 14.535873337 · Participants: 233635Walgreens Retirement Savings Plan
Black Diamond Plumbing & Mechanical Inc 401(k) Plan vs. nearby 401(k) plans in Illinois, assets vs. participants
Compare Black Diamond Plumbing & Mechanical Inc 401(k) Plan side-by-side with 3 peers →

Black Diamond Plumbing & Mechanical Inc 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside Illinois, the nearest 401(k) by assets is Confluence Outdoor, Inc. 401(k) Plan in SC ($7M); by covered participants it is Baymeadows Animal Hospital LLC 401(k) Profit Sharing Plan & Trust in FL (110 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($7M here).

Similar participant headcount

Nearest other-state filings by covered participants (110 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 Black Diamond Plumbing & Mechanical Inc 401(k) Plan assets move in 2024? ▼
Black Diamond Plumbing & Mechanical Inc 401(k) Plan grew sharply - up 17.9% during 2024, from $6M to $7M. Reported net income was $1M.
How have Black Diamond Plumbing & Mechani plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Black Diamond Plumbing & Mechani's sponsor-wide assets grew 50.3%, from $5M to $7M.
Which 401(k) plans are similar in size to Black Diamond Plumbing & Mechanical Inc 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Confluence Outdoor, Inc. 401(k) Plan in SC ($7M, 362 participants).
Which 401(k) plans cover a similar participant headcount to Black Diamond Plumbing & Mechanical Inc 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Baymeadows Animal Hospital LLC 401(k) Profit Sharing Plan & Trust in FL (110 participants, N/A 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 371381904.

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.