401(k) · DOL Form 5500 · 2024

Builders Firstsource, Inc. 401(k) Plan

Data updated 2026-08-25

$1.7B
Total assets Very large vs avg
29,871
Participants Very large workforce
99th
Percentile by assets National rank
$57,795
Avg per participant Low balance/head
PlainRetire home → About this data RSS: change history

Official DOL plan name: Builders Firstsource 401(k) Savings Plan · Sponsored by Builders Firstsource, Inc. · Massachusetts · Wholesale Trade

$1.7B in assets, 29,871 participants

Builders Firstsource, Inc.'s Builders Firstsource 401(k) Savings Plan reported $1.7B in total assets and 29,871 participants in its 2024 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.

  • #6,050 in Wholesale Trade (6,080 peers)

Coverage in Massachusetts

Builders Firstsource 401(k) Savings Plan covers 29,871 participants in Massachusetts, 45x the typical Massachusetts plan (state average ~659 per filing). Assets: $1.7B.

#6,050
in Wholesale Trade (6,080 peers)
+10.3%
assets growth YoY
17×
vs typical plan assets (national mean)

Builders Firstsource 401(k) Savings Plan's outsized position by total assets

Builders Firstsource 401(k) Savings Plan vs every filed plan by assets

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

$1,726,390,792 Top 1% higher than 99% 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

Builders Firstsource 401(k) Savings Plan's mega-plan peer group by participant headcount

Plan-year 2024 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Builders Firstsource 401(k) Savings Plan is a mega filing (29,871 participants), the rightmost band on the breakdown.

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Builders Firstsource 401(k) Savings Plan reported net income fell from $212M in the plan year 2023 filing to $159M in the plan year 2024 filing.
  • Builders Firstsource 401(k) Savings Plan end-of-year assets rose from $1.6B in the plan year 2023 filing to $1.7B in the plan year 2024 filing.
  • Builders Firstsource 401(k) Savings Plan reported participants fell from 30,742 in the plan year 2023 filing to 29,871 in the plan year 2024 filing.

See the national 2023→2024 release diff →

EBSA filing schedule strip

Filing strip 522084569 · Builders Firstsource, Inc. PY 2024 · 401(k)

Builders Firstsource 401(k) Savings Plan · $1.7B · 29,871 · 99th

  • EIN $1.7B
  • EIN 29,871
  • EIN 99th
  • EIN 401(k)
  • EIN near Encompass Health Corporation 401(k) Retirement Plan
  • EIN ind #6050

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 Wholesale Trade retirement plans → · Plans in Massachusetts →

Builders Firstsource 401(k) Savings Plan in the asset neighbourhood

Builders Firstsource 401(k) Savings PlanBuilders Firstsource 401(k) …$1.7BSyensqo USA 401(k)Plan$1.7BEmcor Group, Inc. 401(k) Savings PlanEmcor Group, Inc. 401(k) Sav…$1.7BEncompass Health Corporation 401(k) Retirement PlanEncompass Health Corporation…$1.7BThrivent 401(k) Plan$1.7B
End-of-year total assets ($B) among Builders Firstsource 401(k) Savings Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

Massachusetts filing particulars

Total Assets (Beginning of Year)$1.6B
Net Assets (End of Year)$1.7B
Net Income$159M
Employer EIN522084569
Plan Effective Date1998-07-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Builders Firstsource, Inc.)

Sponsor-wide plan assets over time

All Builders Firstsource, Inc. plans reported in each filing year

Latest sponsor-wide plan assets
$1.7B 29.316985999103935% vs 2022
2024 filing year
$1.2B$1.4B$1.6B$1.8B 202220232024 $1.34B $1.73B ▲ +29.1%
Year Plans Participants Total Assets
2022 1 17,325 $1.3B
2023 1 30,742 $1.6B
2024 1 29,871 $1.7B

Nearby 401(k) Plans in Massachusetts

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

Builders Firstsource 401(k) Savings Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants Scatter plot of 6 data points. 020000400006000080000 010203040 Total assets ($B) Participants Builders Firstsource 401(k) Savings Plan, Total assets ($B): 1.726390792 · Participants: 29871Builders Firstsource 401(k) Savings PlanFidelity Retirement Savings Plan, Total assets ($B): 34.201609937 · Participants: 66907Fidelity Retirement Savings PlanLiberty Mutual 401(k) Plan, Total assets ($B): 11.352606499 · Participants: 34618Liberty Mutual 401(k) PlanMassachusetts Institute of Technology Supplemental 401(k) Plan, Total assets ($B): 7.720373045 · Participants: 14762Massachusetts Institute of Technology Supplemental 401(k) PlanBoston Scientific Corporation 401(k) Retirement Savings Plan, Total assets ($B): 6.775289067 · Participants: 20639Boston Scientific Corporation 401(k) Retirement Savings PlanState Street Salary Savings Program, Total assets ($B): 6.532301643 · Participants: 12777State Street Salary Savings Program
Builders Firstsource 401(k) Savings Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants
Compare Builders Firstsource 401(k) Savings Plan side-by-side with 3 peers →

Scale composition for Builders Firstsource 401(k) Savings Plan

Builders Firstsource 401(k) Savings Plan reports $1.7B in end-of-year assets across 29,871 participants (0.014% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.032% of 93,925,755 covered participants) - about $57,795 per participant (42% of the national average assets-per-participant) . Net income for plan year 2024 was $159M.

This plan identity (EIN 522084569, plan #001) has 3 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $1.3B to $1.7B (+29.3%) while covered participants moved from 17,325 to 29,871 . Single-year sparse filers cannot show that trail.

Plan year Participants EOY assets Filing
2022 17,325 $1.3B Open filing
2023 30,742 $1.6B Open filing
2024 · index core 29,871 $1.7B This page

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

Outside Massachusetts, the nearest 401(k) by assets is Encompass Health Corporation 401(k) Retirement Plan in AL ($1.7B); by covered participants it is Hannaford Bros. Co. 401(k) Plan in ME (29,915 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($1.7B here).

Similar participant headcount

Nearest other-state filings by covered participants (29,871 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 Builders Firstsource 401(k) Savings Plan assets move in 2024? ▼
Builders Firstsource 401(k) Savings Plan grew at a solid clip - up 10.3% during 2024, from $1.6B to $1.7B. Reported net income was $159M.
How have Builders Firstsource, Inc. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Builders Firstsource, Inc.'s sponsor-wide assets grew 29.3%, from $1.3B to $1.7B.
Where does Builders Firstsource 401(k) Savings Plan rank by assets among Form 5500 filers? ▼
Builders Firstsource 401(k) Savings Plan ranks in the 99th percentile by end-of-year assets among 123,622 plans that reported assets for plan year 2024 (among the largest 1% of all filed plans).
Which 401(k) plans are similar in size to Builders Firstsource 401(k) Savings Plan? ▼
Among 401(k) plans in other states, the closest by assets is Encompass Health Corporation 401(k) Retirement Plan in AL ($1.7B, 29,454 participants).
Which 401(k) plans cover a similar participant headcount to Builders Firstsource 401(k) Savings Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Hannaford Bros. Co. 401(k) Plan in ME (29,915 participants, $1.1B 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 522084569.

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.