# Milliman
Source: https://planprovider.pro/provider/milliman

> Recordkeeping and retirement plan administration are core services at this independent actuarial and consulting firm. Founded in 1947, it works with employer…

Third-Party Administrator

Seattle, WA

## About Milliman

<p>Recordkeeping and retirement plan administration are core services at this independent actuarial and consulting firm. Founded in 1947, it works with employers and plan sponsors on day-to-day plan operations and participant recordkeeping.</p>

<p>Milliman is headquartered in Seattle in the Puget Sound region and supports plans across the U.S. As of 2025, the firm reports 1,059 clients and $140.5B in AUM.</p>

<p>With a staff of about 3,500 employees, Milliman combines plan administration with actuarial and consulting depth, which can be useful for sponsors that want recordkeeping backed by in-house technical resources rather than a pure-play provider.</p>

<ul>
<li>Retirement plan recordkeeping</li>
<li>Plan administration support</li>
<li>Actuarial and consulting services tied to retirement plans</li>
<li>Works alongside other <a href="/retirement-plans">retirement plan providers</a> as needed</li>
</ul>

Website: [https://milliman.com](https://milliman.com)

Founded: 1947

Employees: 3500

## Office Locations

- Seattle, WA (Headquarters)

## Services Offered

- Recordkeeping

## Client Statistics (2025)

- Total Clients: 1,463

- Total AUM: $140.5B

- Total Participants: 1,969,305

## Other Third-Party Administrators in WA

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

- [Sharebuilder 401k](https://planprovider.pro/provider/sharebuilder-401k) - Seattle, WA

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