Simpson Manufacturing Co., Inc. 401(k) Plan: Login, Facts & Contact Information

Simpson Manufacturing Co., Inc. 401(k) Plan Facts

Plan name
SIMPSON MANUFACTURING CO. , INC. 401(K) PROFIT SHARING PLAN
Plan type
401(k) and profit sharing
Plan sponsor
SIMPSON MANUFACTURING CO., INC
Participants
3,370 (2,922 active employees)
Former employees with a balance
711
Plan assets
$442,228,910 at Dec 31, 2024
Average account balance
$122,196 across 3,619 accounts
Employer contributions
$22,565,540 in plan year 2024 (53% of all contributions)
Recordkeeper
The Vanguard Group, Inc.
Plan year
Jan 1, 2024 – Dec 31, 2024
Plan established
Oct 1, 1956
— 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 28, 2025. Public filing with the U.S. Department of Labor.

Money in and out in plan year 2024

  • $42.5 million went into the plan in contributions, $22.6 million of it from the employer (53%).
  • $26.3 million was paid out to participants.
  • Investment and other income added $43.5 million.
  • Administrative expenses were $17,013, about $5 per account.

How the Simpson Manufacturing Co., Inc. 401(k) changed, 2019–2024

Plan yearParticipantsPlan assetsEmployer contributionsBenefits paid
20192,626$230.0 million$11.8 million$12.6 million
20202,773$272.0 million$13.3 million$15.5 million
20212,364$331.1 million$14.7 million$10.8 million
20222,939$294.0 million$17.2 million$11.6 million
20233,189$382.6 million$20.2 million$14.8 million
20243,370$442.2 million$22.6 million$26.3 million

Simpson Manufacturing Co., Inc. 401(k) Contact Information

Phone
925-560-9000
Mailing address
5956 WEST LAS POSITAS BLVD., PLEASANTON CA 94588
Plan sponsor
SIMPSON MANUFACTURING CO., INC
Employer identification number (EIN)
94-3196943
Plan number
001

Questions about the Simpson Manufacturing Co., Inc. 401(k)

Does Simpson Manufacturing Co., Inc contribute to the 401(k)?

The plan does not report an employer matching arrangement on its Form 5500. It did report $22.6 million in employer contributions for plan year 2024.

Does the Simpson Manufacturing Co., Inc 401(k) have automatic enrollment?

Yes. The plan reports automatic enrollment of eligible employees.

How many people are in the Simpson Manufacturing Co., Inc 401(k) plan?

3,370 participants at the start of plan year 2024, 2,922 of them active employees, and 711 former employees who still had money in the plan.

What is the average 401(k) balance at Simpson Manufacturing Co., Inc?

About $122,196 per account: $442.2 million in plan assets across 3,619 accounts with a balance at the end of plan year 2024.

Who manages the Simpson Manufacturing Co., Inc 401(k) accounts?

Vanguard (listed on the filing as THE VANGUARD GROUP, INC.) is the plan's recordkeeper, which is where participants log in to see their balance.

I no longer work at Simpson Manufacturing Co., Inc. How do I access my 401(k)?

Your account stays with Vanguard 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.

Related Companies
Headquarter: 1301 FIFTH AVE SUITE 2700, SEATTLE, WA, 98101
Headquarter: 150 MONUMENT ROAD, SUITE 202, BALA CYNWYD, PA, 19004
Headquarter: 1 RIVERSIDE PLAZA, COLUMBUS, OH, 43215
Headquarter: 900 METRO CENTER BLVD., FOSTER CITY, CA, 94404
Headquarter: 1111 PASQUINELLI DRIVE, WESTMONT, IL, 60559