Current Partners- click the logo to go to the partner's website

Granite Partners


Consigli Construction Co., Inc.

1250 H Street, NW

Suite 975

Washington, DC 20005

202.800.2800


Lorton Stone, LLC

7544 Fullerton Ct.

Springfield, VA 22153

703.923.9440


Marble Partners

SGH - Performance Beyond Expectation

Simpson Gumpertz & Heger (SGH)

1625 I Street NW

Suite 900

Washington, DC 20006

202.239.4199


WJE Announces 2018 Senior Staff Promotions | News | WJE

Wiss, Janney, Elstner Associates, Inc.


2941 Fairview Park Drive

Suite 300

Falls Church, VA 22042

703.641.4601



Christman

22560 Glenn Drive, Suite 108
Sterling, VA 20164
703.740.5645


GWWO Inc./Architects

800 Wyman Park Drive
Baltimore, MD 21211
410.332.1009

Sandstone Partners

Home - Vertical Access

Vertical Access

P.O. Box 4135

Ithica, NY 14850

607.257.4049


The Gilders' Studio Inc.

17636 Prince Edward Drive
Olney, MD 20832
301.929.9450

Aeon Preservation Services LLC

Aeon Preservation Services, LLC


4703 Annapolis Road

Bladensburg, MD 20710

301.563.9308



Building Conservation Associates Inc.

4075 Wilson Boulevard
8th Floor
Arlington, VA 22203
703.650.7591


Evergreene Architectural Arts

3009 Kaverton Rd

District Heights, MD

20747

866.895.2079


Limestone Partners


Historic Plaster Conservation Services

330 Belleville Turnpike

North Arlington, NJ 07031

201.988.1820

Washington National Cathedral

Washington National Cathedral


3101 Wisconsin Ave NW

Washington, DC 20016

202.537.6200


Grunley Construction Company, Inc.

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

Contracting Specialists Incorporated (CSI) | LinkedIn

Contracting Specialists, Inc.


5127 Berwyn Road

College Park, MD 20740

301.513.5226

Quinn Evans

Quinn Evans


2121 Ward Place, NW

4th Floor

Washington, DC 20037

202.298.6700



Springpoint Structural

113 4th Street Northeast
Charlottesville, VA 22902
434.260.8181

BarnesVanze Architects

BarnesVanze Architects, Inc

1000 Potomac Street NW

Suite L-2

Washington, DC 20007

202.337.7255



Cintec

200 International Circle Suite 5100
Hunt Valley, MD 21030
410.761.0765

Washington DC charter bus

     National Charter Bus DC

     1801 Columbia RD NW

     Suite 205

     Washington DC 20009

     202.250.3441


Logo

    Ally Charter Bus DC

     2141 P Street NW

     Suite 103

     Washington DC 20037

     703.286.7418


Special thanks to our Individual APT DC Friend members: 

  • William Brenner
  • Tobin Tracey
  • Tom Vitanza, AIA, NCARB & Rebecca Stevens, AIA, NCARB

© 2021 The Association for Preservation Technology, Washington DC Chapter.
P.O. Box 9813 Washington, DC 20016
APT DC is a 501(c)3 non-profit organization based in Washington, DC. ~ All rights reserved.

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