DGI principals

Founded in 1989 by Ken Duberstein and Michael Berman, the DGI team provides our clients with experienced counsel, guidance and insight based on years of leadership service within the White House, major cabinet agencies, Fortune 50 corporations and Capitol Hill.

  • Brian J. Griffin

    Managing Partner

    Brian J. Griffin is a Managing Partner at The Duberstein Group.  He was previously Vice President of Government Relations for Honeywell International, representing global corporate interests in transportation and energy markets and managin...

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  • David Schiappa

    Managing Partner

    David Schiappa, Managing Partner, joined the Duberstein Group after retiring in 2013 from the United States Senate after almost 29 years of service.  David served under Republican Leaders Bob Dole, Trent Lott, Bill Frist, and the current M...

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  • Kate Winkler Keating

    Partner

    Kate Winkler Keating, Partner, joined the Duberstein Group after working in a variety of senior-level Capitol Hill positions. Most recently, she served as the Chief of Staff to Congressman Joseph Crowley, who was Chairman of the House Democ...

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  • Ben Howard

    Partner

    Ben Howard, Partner, joined the Duberstein Group after a more than a decade of service in key roles in both the White House and the House of Representatives. Most recently, Ben served as Deputy Assistant to the President for Legislative Aff...

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  • Elizabeth Kelley

    Vice President

    Elizabeth Kelley is a Vice President at The Duberstein Group, having joined the firm from the Urban Institute where she served as Vice President of Philanthropic Partnerships. During the Obama-Biden Administration, Elizabeth served as Speci...

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  • Kenneth M. Duberstein

    Founder

    Ken Duberstein passed away on March 2, 2022.   Ken was many things to many people; a caring father, a loving husband, a loyal friend, a trusted advisor, a thoughtful listener, and a strategic leader. His storied career brought him from the...

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  • Michael S. Berman

    Founder

    Mike Berman is President Emeritus and one of the founders of The Duberstein Group, Inc., a government affairs consulting firm, established in 1989 and based in Washington, DC.  Previous to that he was a Partner in the Washington office of ...

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