CURRENT PARTNERS- click the logo to go to the partner's website

Granite Partners


Whiting Turner

6305 Ivy Lane, Suite 800

Greenbelt, MD 20770

301.656.7800


Historic Plaster Conservation Services

330 Belleville Turnpike

North Arlington, NJ 07031

201.988.1820


Consigli Construction Co., Inc.

1250 H Street, NW

Suite 975

Washington, DC 20005

202.800.2800


Simpson Gumpertz & Heger (SGH)

1625 I Street NW

Suite 900

Washington, DC 20006

202.239.4199



Lorton Stone, LLC

7544 Fullerton Ct.

Springfield, VA 22153

703.923.9440


Marble Partners


GWWO Inc./Architects

800 Wyman Park Drive
Baltimore, MD 21211
410.332.1009


EHT Traceries, Inc.

440 Massachusetts Avenue, NW
Washington, DC 20001
202.393.1199


Sandstone Partners


Historic Preservation Training Center

4801A Urbana Pike
Frederick, MD 21704
301.663.0856


Citadel DCA LLC

4201 Massachusetts Avenue, NW, 1000E
Washington, DC 20016
202.820.3605


The Gilders' Studio Inc.

17636 Prince Edward Drive
Olney, MD 20832
301.929.9450


Davis Buckley Architects and Planners

1612 K Street NW

Suite 900

Washington, DC 20006
202.223.1234

Limestone Partners


Building Conservation Associates Inc.

4075 Wilson Boulevard
8th Floor
Arlington, VA 22203
703.650.7591


Springpoint Structural

113 4th Street Northeast
Charlottesville, VA 22902
434.260.8181


Architect of the Capitol

SB-15 U.S. Capitol

US Capitol Building

Washington, DC 20515
202.228.1793



Grunley Construction Company, Inc.

15020 Shady Grove Road, Suite 500
Rockville, MD 20850
240.399.2000


Summer Consultants, Inc.

7900 Westpark Drive, Suite A405

McLean, VA 22102
703.556.8820


Rugo Stone

7953 Angleton Court 
Lorton, VA 22079
571.520.641


Cintec

200 International Circle Suite 5100
Hunt Valley, MD 21030
410.761.0765

Special thanks to our Individual APT DC Friend members: 

  • William Brenner
  • Megan Brown
  • Robert J. Hotes, AIA
  • Thomas Jester, AIA
  • Mary Oehrlein, FAIA
  • Christopher Sullivan
  • Ken Kealey
  • Larry Burkhardt
  • Shannon Cohalan
  • Daria Gasparini
  • Tobin Tracey

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APT DC is a 501(c)3 non-profit organization based in Washington, DC.

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