Sdi, Inc. 401(k) Plan: Login, Facts & Contact Information

Sdi, Inc. 401(k) Plan Facts

Plan name
SDI, INC. RETIREMENT SAVINGS PLAN
Plan type
401(k) with employer contributions and profit sharing
Plan sponsor
SDI, INC.
Participants
476 (309 active employees)
Former employees with a balance
115
Plan assets
$14,635,350 at Dec 31, 2024
Average account balance
$35,097 across 417 accounts
Employer contributions
$299,239 in plan year 2024 (15% of all contributions)
Recordkeeper
Adp, Inc.
Plan year
Jan 1, 2024 – Dec 31, 2024
Plan established
Jul 9, 1990
✓ 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 Oct 10, 2025. Public filing with the U.S. Department of Labor.

Money in and out in plan year 2024

  • $2.00 million went into the plan in contributions, $299,239 of it from the employer (15%).
  • $1.73 million was paid out to participants.
  • Investment and other income added $1.52 million.
  • Administrative expenses were $93,466, about $224 per account.

How the Sdi, Inc. 401(k) changed, 2019–2024

Plan yearParticipantsPlan assetsEmployer contributionsBenefits paid
2019349$11.7 million$220,000$1.65 million
2020380$11.0 million$0$3.64 million
2021401$12.8 million$76,194$1.20 million
2022453$11.0 million$406,835$1.58 million
2023412$12.9 million$306,856$1.51 million
2024476$14.6 million$299,239$1.73 million

Sdi, Inc. 401(k) Contact Information

Phone
571-438-0822
Mailing address
1414 RADCLIFFE STREET, SUITE 300, BRISTOL PA 19007
Plan sponsor
SDI, INC.
Employer identification number (EIN)
23-1737774
Plan number
001

Questions about the Sdi, Inc. 401(k)

Does Sdi, Inc contribute to the 401(k)?

Yes. The plan reports an employer contribution arrangement. In plan year 2024 the employer contributed $299,239, 15% of all contributions.

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

Yes. The plan reports automatic enrollment of eligible employees.

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

476 participants at the start of plan year 2024, 309 of them active employees, and 115 former employees who still had money in the plan.

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

About $35,097 per account: $14.6 million in plan assets across 417 accounts with a balance at the end of plan year 2024.

Who manages the Sdi, Inc 401(k) accounts?

ADP Retirement Services (listed on the filing as ADP, INC.) is the plan's recordkeeper, which is where participants log in to see their balance.

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

Your account stays with ADP Retirement Services 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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