401(k) · DOL Form 5500 · 2023

Slab Masters, Inc. 401(k) Plan

Data updated 2026-08-25

$12M
Total assets Small plan by assets: 355
Participants Below avg headcount: 63rd
Percentile by assets National rank: $34,042
Avg per participant Low balance/head

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

$12M in assets, 355 participants

Slab Masters, Inc.'s Slab Masters Retirement Plan reported $12M in total assets and 355 participants in its 2023 DOL Form 5500 filing, ranking in the 63rd 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.

#5,526 in Construction (9,030 peers)

Coverage in Illinois

Slab Masters Retirement Plan covers 355 participants in Illinois, about 46% of the average Illinois filer (state average ~779 per filing). Assets: $12M.

#5,526
in Construction (9,030 peers): +25.1%
assets growth 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 2023 · DOL Form 5500

$12,084,994 Top 37% higher than 63% 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

Slab Masters Retirement 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. Slab Masters Retirement Plan sits mid-pack in the medium band (355 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%)

Slab Masters Retirement Plan reported net income rose from -$1M in the plan year 2022 filing to $2M in the plan year 2023 filing.
Slab Masters Retirement Plan end-of-year assets rose from $10M in the plan year 2022 filing to $12M in the plan year 2023 filing.
Slab Masters Retirement Plan reported participants rose from 307 in the plan year 2022 filing to 355 in the plan year 2023 filing.

See the national 2022→2023 release diff →

Published 5500 schedule card

Filing strip 371303237 · Slab Masters, Inc. PY 2023 · 401(k)

Slab Masters Retirement Plan · $12M · 355 · 63rd

EIN $12M
EIN 355
EIN 63rd
EIN 401(k)
EIN near C. Davis Electric Co., Inc. 401(k) Profit-Sharing Plan
EIN ind #5526

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 2023.

Illinois filing particulars

Total Assets (Beginning of Year)	$10M
Net Assets (End of Year)	$12M
Net Income	$2M
Employer EIN	371303237
Plan Effective Date	1998-01-01
Filing Status	FILING RECEIVED

Sponsor Plan History (Slab Masters, Inc.)

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 Savings Plan $17.6B · 69,974
State Farm 401(k) Savings Plan $16.9B · 60,246
Abbott Laboratories Stock Retirement Plan $14.5B · 38,012
United Airlines Pilot Retirement Account Plan $14.4B · 14,959
Walgreens Retirement Savings Plan $13.4B · 235,331

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 C. Davis Electric Co., Inc. 401(k) Profit-Sharing Plan in FL ($12M); by covered participants it is Onin Group 401(k) Plan in AL (355 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($12M here).

C. Davis Electric Co., Inc. 401(k) Profit-Sharing Plan (FL) $12M · 182
Curia Rls Union 401(k) Plan (NY) $12M · 119
United Steel, Inc. 401(k) Retirement Plan (CT) $12M · 167
Pch 401(k) Plan (CA) $12M · 43

Similar participant headcount

Nearest other-state filings by covered participants (355 participants); asset peers above are excluded.

Onin Group 401(k) Plan (AL) 355 · 0 off
Schaefer Systems International, Inc. 401(k) Retirement Plan (NC) 355 · 0 off
Go Mortgage, LLC 401(k) Profit Sharing Plan (WI) 355 · 0 off
United Tn Holdings, Inc. 401(k) Plan (TN) 355 · 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 Slab Masters Retirement Plan assets move in 2023? ▼

Slab Masters Retirement Plan grew sharply - up 25.1% during 2023, from $10M to $12M. Reported net income was $2M.

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

Across 3 plan years on file (2022-2024), Slab Masters, Inc.'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 C. Davis Electric Co., Inc. 401(k) Profit-Sharing Plan in FL ($12M, 182 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 Onin Group 401(k) Plan in AL (355 participants, $4M 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 371303237.