401(k) · DOL Form 5500 · 2024

Slab Masters, U.S. LLC 401(k) Plan

Data updated 2026-08-25

$8M
Total assets Small plan by assets: 293
Participants Below avg headcount: 51st
Percentile by assets National rank: $26,705
Avg per participant Low balance/head

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Official DOL plan name: Slab Masters Retirement Plan · Sponsored by Slab Masters, U.S. LLC · Illinois · Construction

$8M in assets, 293 participants

Slab Masters, U.S. LLC's Slab Masters Retirement Plan reported $8M in total assets and 293 participants in its 2024 DOL Form 5500 filing, ranking in the 51st 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.

#4,435 in Construction (9,039 peers)

Coverage in Illinois

Slab Masters Retirement Plan covers 293 participants in Illinois, about 38% of the average Illinois filer (state average ~779 per filing). Assets: $8M.

#4,435
in Construction (9,039 peers): -35.3%
assets change YoY

Slab Masters Retirement Plan's mid-pack asset rank among Construction and all filers

Slab Masters Retirement Plan vs every filed plan by assets

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

$7,824,662 Top 49% higher than 51% 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

Slab Masters Retirement 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. Slab Masters Retirement Plan sits mid-pack in the medium band (293 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%)

Slab Masters Retirement Plan end-of-year assets fell from $12M in the plan year 2023 filing to $8M in the plan year 2024 filing.
Slab Masters Retirement Plan reported net income fell from $2M in the plan year 2023 filing to $2M in the plan year 2024 filing.
Slab Masters Retirement Plan reported participants fell from 355 in the plan year 2023 filing to 293 in the plan year 2024 filing.

See the national 2023→2024 release diff →

DOL schedule card

Filing strip 371303237 · Slab Masters, U.S. LLC PY 2024 · 401(k)

Slab Masters Retirement Plan · $8M · 293 · 51st

NET $8M
BOOK 293
VS-ST 51st
BOY 401(k)
SCH near Jrn, Inc. 401(k) Plan
EBSA ind #4435

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 →

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

Illinois filing particulars

Total Assets (Beginning of Year)	$12M
Net Assets (End of Year)	$8M
Net Income	$2M
Employer EIN	371303237
Plan Effective Date	1998-01-01
Filing Status	FILING RECEIVED

Sponsor Plan History (Slab Masters, U.S. LLC)

Latest sponsor-wide plan assets: $8M 19.01239500266779% vs 2022; 2024 filing year

Year	Plans	Participants	Total Assets
2022	1	307	$10M
2023	1	355	$12M
2024	1	293	$8M

Nearby 401(k) Plans in Illinois

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

Slab Masters Retirement Plan vs. nearby 401(k) plans in Illinois, assets vs. participants

Accenture United States 401(k) Match and Savings Plan $21.3B · 66,965
State Farm 401(k) Savings Plan $19.0B · 63,297
United Airlines Pilot Retirement Account Plan $16.8B · 16,659
Abbott Laboratories Stock Retirement Plan $15.8B · 38,229
Walgreens Retirement Savings Plan $14.5B · 233,635

Compare Slab Masters Retirement Plan side-by-side with 3 peers →

Slab Masters Retirement Plan's out-of-state 401(k) peers by assets and headcount

Outside Illinois, the nearest 401(k) by assets is Jrn, Inc. 401(k) Plan in TN ($8M); by covered participants it is The Polo Club of Boca Raton, Poa, Inc. 401(k) Profit Sharing Plan in FL (293 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($8M here).

Jrn, Inc. 401(k) Plan (TN) $8M · 1,472
Inmotion Hosting Inc. 401(k) Plan (VA) $8M · 302
Robson Communities, Inc. Homeowners Associations 401(k) Retirement Plan (AZ) $8M · 718
Nico Corporation 401(k) Plan (IN) $8M · 63

Similar participant headcount

Nearest other-state filings by covered participants (293 participants); asset peers above are excluded.

The Polo Club of Boca Raton, Poa, Inc. 401(k) Profit Sharing Plan (FL) 293 · 0 off
Plexus Worldwide 401(k) Retirement Plan (AZ) 293 · 0 off
Consolidated Waterproofing Contractors, Inc. 401(k) Contribution Profit Sharing (MD) 293 · 0 off
Health Care Logistics, Inc. 401(k) Plan (OH) 293 · 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 Slab Masters Retirement Plan assets move in 2024? ▼

Slab Masters Retirement Plan contracted severely - down 35.3% during 2024, from $12M to $8M. Reported net income was $2M.

How have Slab Masters, U.S. LLC plan assets changed over time? ▼

Across 3 plan years on file (2022-2024), Slab Masters, U.S. LLC's sponsor-wide assets declined 19.0%, from $10M to $8M.

Which 401(k) plans are similar in size to Slab Masters Retirement Plan? ▼

Among 401(k) plans in other states, the closest by assets is Jrn, Inc. 401(k) Plan in TN ($8M, 1,472 participants).

Which 401(k) plans cover a similar participant headcount to Slab Masters Retirement Plan? ▼

Among 401(k) plans in other states, the closest by covered participants is The Polo Club of Boca Raton, Poa, Inc. 401(k) Profit Sharing Plan in FL (293 participants, $11M 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 371303237.