401(k) · DOL Form 5500 · 2023

Slalom, Inc. 401(k) Plan

Data updated 2026-08-25

$1.3B
Total assets Very large vs avg
11,603
Participants Very large workforce
99th
Percentile by assets National rank
$113,439
Avg per participant Below avg balance/head
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Official DOL plan name: Slalom 401(k) Plan · Sponsored by Slalom, Inc. · Washington · Professional & Technical Services

$1.3B in assets, 11,603 participants

Slalom, Inc.'s Slalom 401(k) Plan reported $1.3B in total assets and 11,603 participants in its 2023 DOL Form 5500 filing, ranking in the 99th 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.

  • #20,187 in Professional & Technical Services (20,321 peers)

Coverage in Washington

Slalom 401(k) Plan covers 11,603 participants in Washington, 7.9x the typical Washington plan (state average ~1,476 per filing). Assets: $1.3B.

#20,187
in Professional & Technical Services (20,321 peers)
+36.7%
assets growth YoY
13×
vs typical plan assets (national mean)

Slalom 401(k) Plan's outsized position by total assets

Slalom 401(k) Plan vs every filed plan by assets

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

$1,316,232,222 Top 1% higher than 99% 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

Slalom 401(k) Plan's mega-plan peer group by participant headcount

Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Slalom 401(k) Plan is a mega filing (11,603 participants), the rightmost band on the breakdown.

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Slalom 401(k) Plan reported net income rose from -$36M in the plan year 2022 filing to $354M in the plan year 2023 filing.
  • Slalom 401(k) Plan end-of-year assets rose from $963M in the plan year 2022 filing to $1.3B in the plan year 2023 filing.
  • Slalom 401(k) Plan reported participants rose from 10,017 in the plan year 2022 filing to 11,603 in the plan year 2023 filing.

See the national 2022→2023 release diff →

DOL schedule card

Filing strip 841246887 · Slalom, Inc. PY 2023 · 401(k)

Slalom 401(k) Plan · $1.3B · 11,603 · 99th

  • BOY $1.3B
  • SCH 11,603
  • EBSA 99th
  • PART 401(k)
  • TYPE near J.B. Hunt Transport Services, Inc. Employee Retirement Plan
  • NET ind #20187

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 Professional & Technical Services retirement plans → · Plans in Washington →

Slalom 401(k) Plan in the asset neighbourhood

Slalom 401(k) Plan$1.3BJ.B. Hunt Transport Services, Inc. Employee Retirement PlanJ.B. Hunt Transport Services…$1.3BClayton Homes, Inc. 401(k) Retirement PlanClayton Homes, Inc. 401(k) R…$1.3BWabtec Savings Plan$1.3BHub International Limited 401(k) Savings PlanHub International Limited 40…$1.3B
End-of-year total assets ($B) among Slalom 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

Washington filing particulars

Total Assets (Beginning of Year)$963M
Net Assets (End of Year)$1.3B
Net Income$354M
Employer EIN841246887
Plan Effective Date1996-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Slalom, Inc.)

Sponsor-wide plan assets over time

All Slalom, Inc. plans reported in each filing year

Latest sponsor-wide plan assets
$1.6B 63.27125593534557% vs 2022
2024 filing year
$0.8B$1B$1.2B$1.4B$1.6B$1.8B 202220232024 $0.96B $1.57B ▲ +63.5%
Year Plans Participants Total Assets
2022 1 10,017 $963M
2023 1 11,603 $1.3B
2024 1 9,679 $1.6B

Nearby 401(k) Plans in Washington

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

Slalom 401(k) Plan vs. nearby 401(k) plans in Washington, assets vs. participants Scatter plot of 6 data points. 050000100000150000200000250000 -20020406080 Total assets ($B) Participants Slalom 401(k) Plan, Total assets ($B): 1.316232222 · Participants: 11603Slalom 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
Slalom 401(k) Plan vs. nearby 401(k) plans in Washington, assets vs. participants
Compare Slalom 401(k) Plan side-by-side with 3 peers →

Scale composition for Slalom 401(k) Plan

Slalom 401(k) Plan reports $1.3B in end-of-year assets across 11,603 participants (0.011% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.012% of 93,925,755 covered participants) - about $113,439 per participant (82% of the national average assets-per-participant) . Net income for plan year 2023 was $354M.

This plan identity (EIN 841246887, plan #001) has 3 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $963M to $1.6B (+63.3%) while covered participants moved from 10,017 to 9,679 . Single-year sparse filers cannot show that trail.

Plan year Participants EOY assets Filing
2022 10,017 $963M Open filing
2023 11,603 $1.3B This page
2024 · index core 9,679 $1.6B Open filing

The same sponsor also keeps 1 other index-core plan on PlainRetire:

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

Outside Washington, the nearest 401(k) by assets is J.B. Hunt Transport Services, Inc. Employee Retirement Plan in AR ($1.3B); by covered participants it is Asurion, LLC 401(k) Plan in TN (11,618 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($1.3B here).

Similar participant headcount

Nearest other-state filings by covered participants (11,603 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 Slalom 401(k) Plan assets move in 2023? ▼
Slalom 401(k) Plan surged - up 36.7% during 2023, from $963M to $1.3B. Reported net income was $354M.
How have Slalom, Inc. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Slalom, Inc.'s sponsor-wide assets grew 63.3%, from $963M to $1.6B.
Where does Slalom 401(k) Plan rank by assets among Form 5500 filers? ▼
Slalom 401(k) Plan ranks in the 99th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (among the largest 1% of all filed plans).
Which 401(k) plans are similar in size to Slalom 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is J.B. Hunt Transport Services, Inc. Employee Retirement Plan in AR ($1.3B, 39,077 participants).
Which 401(k) plans cover a similar participant headcount to Slalom 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Asurion, LLC 401(k) Plan in TN (11,618 participants, $650M 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 841246887.

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.