#1Diversified, LLC
Based in DE
401(k) TPAs & Recordkeepers in New Castle County, DE
The top-ranked 401(k) TPAs and recordkeepers serving New Castle County, DE are Diversified, LLC, Limestone Pension Associates and Limestone Pension Associates LLC. We list 19 401(k) TPAs and recordkeepers serving New Castle County, DE. 19 of the providers shown match an active record from U.S. Department of Labor, checked on the date shown. Rankings follow our published methodology; sponsored placements never change rank.
401(k) TPAs & Recordkeepers serving New Castle County, DE. 19 providers, 10 of the top 10 verified against federal or state records. Registry records checked on 2026-11-04.
Top 10 ranked 401(k) TPAs and recordkeepers for New Castle County
#2Limestone Pension Associates
Based in DE#3Limestone Pension Associates LLC
Based in DE#4Zenith
Based in DE#5Zenith American Solutions
Based in DE#6Atlantic Pension Services, Inc.
Serves this area from Kennett Square, PA (19 mi)#7Legacy Retirement Solutions, LLC
Serves this area from PA#8Keystone 401(k), LLC
Serves this area from PA#9Delaware Valley Retirement, Inc.
Serves this area from Ridley Park, PA (27 mi)#10Granite Run Tech Solutions LLC
Serves this area from PA
9 more providers serving this area
- The Mandmarblestone Group LLC, PA
- Wellworks For You, PA
- The Vanguard Group, PA
- The Vanguard Group, Inc., PA
- Vanguard Group, Inc., PA
- Creative Planning Holdco, LLC, PA
- Nfp Corporate Services SE Inc., Chesterbrook, PA (35 mi)
- Tycor Benefit Administrators Inc, Chesterbrook, PA (35 mi)
- Oneill Consulting Corp, PA
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Frequently asked questions
How many 401(k) TPAs and recordkeepers serve New Castle County?
We list 19 401(k) TPAs and recordkeepers serving New Castle County, DE: 5 based there and 14 serving it from nearby. 10 of the top 10 match an active federal or state record, checked on 2026-11-04.
Which 401(k) TPAs and recordkeepers serve New Castle County?
The top-ranked 401(k) TPAs and recordkeepers serving New Castle County, DE are Diversified, LLC, Limestone Pension Associates, Limestone Pension Associates LLC, Zenith and Zenith American Solutions. The full ranked list, with the official records each provider matched, is on this page.
Which 401(k) TPAs and recordkeepers serving New Castle County are verified against official records?
10 of the top 10 match an active official record: Diversified, LLC (U.S. Department of Labor), Limestone Pension Associates (U.S. Department of Labor), Limestone Pension Associates LLC (U.S. Department of Labor), Zenith (U.S. Department of Labor) and Zenith American Solutions (U.S. Department of Labor), and 5 more on this page. Each badge links to the official record it matched.
How are these companies ranked?
By our published methodology: verified registrations, documented capabilities, years registered and responsiveness. Sponsored placements are shown separately and never affect rank.
What does "Verified" mean on this page?
"Verified" means we matched the provider to an active official record on the date shown; each badge links to that record. The absence of a badge only means we have not verified that item.
What does a 401(k) TPA do?
A third-party administrator handles plan compliance: nondiscrimination testing, Form 5500 preparation, contribution limits and plan documents. Recordkeepers track participant accounts; some firms do both.
"Verified" means we matched the provider to an active official record on the date shown. The absence of a badge only means we have not verified that item. How we rank and verify. Page updated .
Cities in New Castle County
Communities served
Bear, Glasgow, Brookside, Hockessin, Pike Creek Valley, Claymont, Wilmington Manor, North Star, Pike Creek, Edgemoor, Elsmere, New Castle, Greenville, Townsend, St. Georges, Delaware City, Bellefonte, Newport, Arden, Odessa, Ardentown, Ardencroft, Port Penn