Through its Professional Circle, the Landmarks Conservancy offers individuals and firms working in architecture, construction, design, engineering, preservation, real estate, and related fields a variety of networking, promotional, and educational activities.

Professional Circle listings are a benefit of membership and do not constitute an endorsement. The list is updated monthly. For further information or to join us, contact Scott Leurquin at or at 212.995.5260.


Professional Circle Members



Acheson Doyle Partners Architects

West New York Restoration of CT, Inc.


Dajia US


Walter B. Melvin Architects, LLC


Beyer Blinder Belle Architects & Planners, LLP

Boy Graham Construction, Ltd.

CetraRuddy, Inc.

John Doremus

E.W. Howell Construction Group

Gilsanz Murray Steficek, LLP

gormanschweyer architects llp

Lichten Architects

James Polshek

Superstructures Engineers + Architects

The Brooklyn Studio

Zubatkin Owner Representation


AARCO Contracting

A.R. Walker & Company, Inc.

Architectural Preservation Studio, D.P.C.


Aurora Lampworks, Inc.

Ottavino Corporation

Marissa Accardi

ALSA Architecture 

Altieri Sebor Wieber, LLC

AYON Studio

Barbara A. Campagna Architecture + Planning, PLLC

Penelope Bareau

Baxt Ingui Architects

Belisle Architectural Windows and Doors

Donald Berg

Bertolini Architectural Works, D.P.C.

Blair + Mui Dowd Architects, PC

George Bianco

Francoise A. Bollack Architects

Megan Brady

Building Conservation Associates, Inc.

Building Studio Architects LLP

Burda Construction Corporation

Genevieve Carter

Central Construction Management, LLC

Clagnan Stained Glass Studio

Coastal Waterproofing LLC

COVAX Ornamental & Architectural Metal Design

Daniel Gale Sotheby’s International Realty

Daniella Peltz Stained Glass

David Grider Architect

David L. Scharf & Co., Inc.

David Scott Parker Architects

Deerpath Construction Corporation

DG Historical Restoration

di Domenico + Partners, LLP

Domingo Gonzalez Associates

Echem Consultants LLC

Edward Kamper Associates

Excellent Contracting, LLC

Facade MD Architecture and Engineering, PC

Femenella & Associates, Inc.

Thomas A. Fenniman

Fifty Three Restorations, Inc.

Steve Fisher

Fred Basch Architect, PLLC

Glass & Glass, Architects

Gregory Dietrich Preservation Consulting

Charles H. Henkels, Architect

Higgins Quasebarth & Partners, LLC

Josiah Hobson

Holly Kaye Planning and Development Consultant

Howard L. Zimmerman Architects, DPC

Francisco Ipina

Jablonski Building Conservation, Inc.

Leslie J. Jabs

Jeffrey Jacobson

J. E. O’Donnell Construction Company, LLC

Jenkins Architecture, PLLC

John G. Waite Associates Architects, PLLC

Kalam – Alejandro Garcia

Kamil Grzybowski

Emma Kalimian

Kathryn Scott Design Studio

Mary Kay Judy

Justin Kopa

Kaese Architecture PLLC

Kamen Tall Architects

Kevin Wolfe Architect, PC

Gene Keyser

Kliment Halsband Architects

Lamb Studios, Inc.

Jennifer Landau-Carter

Lexicon Communications Corporation

Li/Saltzman Architects, PC

Liberty Stained Glass Consulting

Linda M. Yowell Architects

Alden Maddry

Mary B. Dierickx Historic Preservation Consulting

Masonry Solutions International

Richard Massa

David M. McAlpin

Metropolitan Construction Corp.

Method Restoration LLC

Ralph Morea

Morris-Jumel Mansion

Moss Preservation Works

MVN Architect, LLC

New Roc Contracting

Newman Design

Nicholson & Galloway, Inc

Norfast Engineering, PLLC

Old Structures Engineering, PC

John Peachy

Esin Pektas

Jacqueline Peu-Duvallon

PBDW Architects, LLP

Philip Toscano Architect

Porter Clapp Architects PC

Rachel Eynan-Shargal

Rachel Frankel Architecture

Renfro Design Group, Inc.

Zach Rice

Richbrook Conservation

Brett Rugo

Russel Watsky, Inc.

S.W. Management, LLC

Saenrra Brownstone Inc.

Steven Kratchman Architect, P.C.

Marie Sansone Taylor

Kara Shypula

Debbie Sklar

Stephen Tilly, Architect

Sunlites Stained Glass

Thomas Phifer and Partners Architects and Designers, LLP

Thornton Tomasetti

Tiger Koehn

Timothy Shea Architecture + Design

Traditional Cut Stone

Traditional Line, Ltd

Vertical Access, LLC

Christopher Wall

Walter Sedovic Architects

Sarah Westley

K. Kennedy Whiters

Wiss, Janney, Elstner Associates, Inc.

Yamada Architecture & Design, PLLC

Zaskorski & Associates Architect