# Sharebuilder 401k
Source: https://planprovider.pro/provider/sharebuilder-401k

> ShareBuilder 401k is a retirement plan administrator and recordkeeper focused on 401(k) plans for small and mid-sized businesses, including self-employed own…

Third-Party Administrator

Seattle, WA

## About Sharebuilder 401k

<p>ShareBuilder 401k is a retirement plan administrator and recordkeeper focused on 401(k) plans for small and mid-sized businesses, including self-employed owners. Founded in 2005, the firm is headquartered in Seattle in the Puget Sound region and works with employers nationwide.</p>

<p>ShareBuilder 401k (ShareBuilder Advisors, LLC) is an SEC-registered investment advisor that offers ERISA 3(38) investment management, along with plan design support and participant advice. As of 2026, it reports 6,500 clients and $2.0B in AUM.</p>

<p>One differentiator is its early push into index-based 401(k) lineups, including digital quoting and all-ETF investment rosters. The firm assigns Customer Success Managers and uses an Investment Committee for ongoing investment oversight and service support.</p>

<ul>
<li>401(k) administration and recordkeeping</li>
<li>ERISA 3(38) investment manager services</li>
<li>Plan design and setup for employers</li>
<li>Participant advice and support</li>
</ul>

Website: [https://www.sharebuilder401k.com/](https://www.sharebuilder401k.com/)

Founded: 2005

Employees: 51

## Office Locations

- Seattle, WA (Headquarters)

## Services Offered

- 3(38) Investment Manager

- Plan Design Consulting

- Recordkeeping

- Participant Investment Advice

## Client Statistics (2026)

- Total Clients: 6,500

- Total AUM: $2.0B

- Total Participants: 150,000

## Other Third-Party Administrators in WA

- [Milliman](https://planprovider.pro/provider/milliman) - Seattle, WA

- [NWPS](https://planprovider.pro/provider/nwps) - Seattle, WA

[View full interactive profile on PlanProvider.Pro](https://planprovider.pro/provider/sharebuilder-401k)

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