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Largest 401(k) plan administrators

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Ranked by number of total plan participants

RankCompanyAddressPhone/WebsiteTotal participantsTotal 401(k) staffPrincipal officer
1Hewitt Associates L.L.C.1100 Half Day Road, Lincolnshire, Ill. 60069847-295-5000 www.hewitt.com3,404,1954,000Russ Fradin, chairman/CEO
2ING U.S. Retirement ServicesOne Orange Way, Windsor, Conn. 06095888-639-2798 www.ing-usa.com3,201,4201,390Richard Mason, president-corporate markets
3Principal Financial GroupP.O. Box 9397, Des Moines, Iowa 50306-9397800-986-3343 www.principal.com2,723,4713,217Dan Houston, president-retirement and investor services
4Great-West Retirement Services8515 E. Orchard Road, Greenwood Village, Colo. 80111303-737-3000 www.gwrs.com1,866,9302,217Mitchel Graye, CEO
5Ascensus Inc.200 Dryden Road, Dresher, Pa. 19025800-345-6363 www.ascensus.com1,314,2851,000Bob Guillocheau, president
6Charles Schwab4150 Kinross Lakes Parkway, Richfield, Ohio 44286877-456-0777 www.scrs.schwab.com1,181,309900Steve Anderson, senior vp-retirement plan services
7Paychex Inc. 911 Panorama Trail S., Rochester, N.Y. 14625585-385-6666 www.paychex.com600,0001,200Jonathan J. Judge, president/CEO
8Standard1100 S.W. Sixth Ave., Portland, Ore. 97204971-645-3988 www.retirement.standard.com571,764700Gregory Ness, CEO
9Milliman Inc.1301 Fifth Ave., Suite 3800, Seattle, Wash. 98101206-624-7940 www.milliman.com511,896250Patrick J. Grannan, president/CEO
10Transamerica Retirement Services1150 S. Olive St., Los Angeles, Calif. 90015888-401-5826 www.ta-retirement.com507,503657Stig Nybo, president

  • 1 Aon Corp. has agreed to buy Hewitt Associates Inc. The deal is expected to close in November 2010.

    Source: BI survey

    Researched by Kevin Edison and Karen Tucker

    Entire contents © copyright 2010 by Crain Communications Inc. All rights reserved