Stewards of the iconic buildings and grounds of Capitol Hill since 1793.

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U.S. Capitol Dome was constructed with 8,909,200 pounds of ironwork bolted together in a masterpiece of American will and ingenuity.
Capitol Dome
The U.S. Capitol’s dome made of cast iron was designed by Thomas U. Walter and...
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Screenshot of Google Maps image of United States Capitol and surrounding areas.
Getting Here
Located at the center of Washington, D.C., the U.S. Capitol Building and other...
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AOC members holding the Historic Preservation Award that they received
Awards
The Architect of the Capitol strives to perform all work at a high level of...
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Band Photo
Live Seasonal Music
Evenings at the Conservatory are magical! Join us Tuesdays and Thursdays...
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Organizational Directory

Organizational Directory

People

Stephen T. Ayers, FAIA, LEED AP
Architect of the Capitol
Photo portrait of Christine A. Merdon, PE, CCM
Christine A. Merdon, PE, CCM
Chief Operating Officer
Photographic portrait of Anna Franz
Anna Franz
Director, Planning and Project Management
Photographic portrait of Ari Novy, Ph.D.
Ari Novy, Ph.D.
Executive Director, U.S. Botanic Garden
Photographic portrait of Beth Plemmons
Beth Plemmons
Chief Executive Officer for Visitor Services
Photographic portrait of Carlos G. Elias
Carlos G. Elias
Superintendent, Capitol Building
Photographic portrait of Christopher Potter
Christopher Potter
Director, Utilities and Power Plant Operations
Photographic portrait of David W. Ferguson
David W. Ferguson
Chief Administrative Officer
A photographic portrait of Jason Baltimore
Jason Baltimore
General Counsel
A photographic portrait of Kenneth A. Eads
Kenneth A. Eads
Director, Office of Security Programs
A photographic portrait of Kevin Mulshine
Kevin Mulshine
Inspector General
A photographic portrait of Larry Brown, Superintendent of Library Buildings and Grounds
Larry D. Brown
Superintendent, Library Buildings and Grounds
A photographic portrait of Mamie Bittner.
Mamie Bittner
Director Communications and Congressional Relations
A photographic portrait of Michael G. Turnbull
Michael G. Turnbull
Assistant Architect of the Capitol
A photographic portrait of Susan Adams
Susan Adams
Director, Safety, Fire and Environmental Programs
A photographic portrait of Takis Tzamaras
Takis Tzamaras
Superintendent, Senate Office Buildings
A photographic portrait of Theodore R. Bechtol
Theodore R. Bechtol
Superintendent, Capitol Grounds
A photographic portrait of Tom Carroll
Tom Carroll
Chief Financial Officer
A photographic portrait of Trent Wolfersberger
Trent Wolfersberger
Facility Manager, Supreme Court Building and Grounds
A photographic portrait of William M. Weidemeyer
William M. Weidemeyer
Superintendent, House Office Buildings

Divisions

Image of a few members of Acquisition and Material Management Division

Acquisition and Material Management Division

AOC Gardener at the U.S. Botanic Gardener handling some orchids

Botanic Garden

Employees at the Capitol Power Plant working on a project

Capitol Power Plant

AOC staff from the Capitol Sheet Metal Shop make repairs on the roof of the Capitol.

Capitol Superintendent's Office

A Visitor Guide helps a child at the Capitol Visitor Center

Capitol Visitor Center

Employees of the AOC's House Carpentry Branch make a mold of an intricate seal

House Superintendent's Office

Human Capital Management Division employee making a phone call

Human Capital Management Division

A photographic portrait of Jay Wiegmann

Information Technology Division

Skilled tradespersons work behind the scenes providing services to the Library that include: ensuring a safe and comfortable indoor environment; preserving historic structures; maintenance, repair, and construction; and landscape design, planting, and grounds maintenance.

Library Buildings and Grounds Superintendent's...

Image of the U.S. Capitol Dome against a blue sky

Office of Chief Financial Officer

U.S. Capitol

Office of General Counsel

Office of Inspector General

Office of Inspector General

West Front of the U.S. Capitol with a clear blue sky in the background

Office of Security Programs

A couple of curators working in the Archives office of the AOC Curator

Office of the Curator

Workers working on a project for the Planning and Project Management organization

Planning and Project Management

Close up detail of a Fire of an AOC fire extinguisher

Safety, Fire and Environmental Programs

Senate Superintendent's Office

Senate Superintendent's Office

Capitol Grounds

Superintendent Capitol Grounds

Supreme Court Building with a fountain out front

Supreme Court Building and Grounds