Builders Firstsource, Inc 401(k) Plan: Login, Facts & Contact Information

Builders Firstsource, Inc 401(k) Plan Facts

Plan name
BUILDERS FIRSTSOURCE 401(K) SAVINGS PLAN
Plan type
401(k) with employer contributions and profit sharing
Plan sponsor
BUILDERS FIRSTSOURCE, INC.
Participants
36,033 (31,456 active employees)
Former employees with a balance
5,763
Plan assets
$1,726,390,792 at Dec 31, 2024
Average account balance
$53,762 across 32,112 accounts
Employer contributions
$34,597,087 in plan year 2024 (23% of all contributions)
Recordkeeper
Empower Annuity Insurance Company O
Plan year
Jan 1, 2024 – Dec 31, 2024
Plan established
Jul 1, 1998
✓ Employer contributions✓ Automatic enrollment✓ Default investment for undecided participants✓ Participants choose their own investments— Self-directed brokerage window✓ Profit sharing— Company stock (ESOP)

Source: Form 5500 for plan year 2024 (Jan 1, 2024 – Dec 31, 2024), filed Jul 24, 2025. Public filing with the U.S. Department of Labor.

Money in and out in plan year 2024

  • $149.3 million went into the plan in contributions, $34.6 million of it from the employer (23%).
  • $164.7 million was paid out to participants.
  • Investment and other income added $180.0 million.
  • Administrative expenses were $1.47 million, about $46 per account.

How the Builders Firstsource, Inc 401(k) changed, 2019–2024

Plan yearParticipantsPlan assetsEmployer contributionsBenefits paid
201917,643$813.8 million$7.20 million$68.7 million
202019,221$915.5 million$8.30 million$73.5 million
202119,849$1.48 billion$15.7 million$131.3 million
202222,440$1.34 billion$32.7 million$134.1 million
202337,967$1.57 billion$33.1 million$136.5 million
202436,033$1.73 billion$34.6 million$164.7 million

Builders Firstsource, Inc 401(k) Contact Information

Phone
303-531-3120
Mailing address
7 SHATTUCK ROAD, ANDOVER MA 01810
Plan sponsor
BUILDERS FIRSTSOURCE, INC.
Employer identification number (EIN)
52-2084569
Plan number
001

Questions about the Builders Firstsource, Inc 401(k)

Does Builders Firstsource, Inc contribute to the 401(k)?

Yes. The plan reports an employer contribution arrangement. In plan year 2024 the employer contributed $34.6 million, 23% of all contributions.

Does the Builders Firstsource, Inc 401(k) have automatic enrollment?

Yes. The plan reports automatic enrollment of eligible employees.

How many people are in the Builders Firstsource, Inc 401(k) plan?

36,033 participants at the start of plan year 2024, 31,456 of them active employees, and 5,763 former employees who still had money in the plan.

What is the average 401(k) balance at Builders Firstsource, Inc?

About $53,762 per account: $1.73 billion in plan assets across 32,112 accounts with a balance at the end of plan year 2024.

Who manages the Builders Firstsource, Inc 401(k) accounts?

Empower (listed on the filing as EMPOWER ANNUITY INSURANCE COMPANY O) is the plan's recordkeeper, which is where participants log in to see their balance.

I no longer work at Builders Firstsource, Inc. How do I access my 401(k)?

Your account stays with Empower after you leave, so you can log in with the same credentials. If your balance was small, the plan may have rolled it into an IRA in your name. If you can't find it, Beagle can locate it for you.

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