144 Spring Street LLC


Abington Friends School
Adobe, Inc.
Albert Einstein Medical Center
Allegheny District
American Red Cross
American Society for Testing and Materials
American Telephone & Telegraph
Apple Inc.
Aristech Corporation
Army Corps of Engineers
Association for the Help of Retarded Children
Avenue of the Arts, Inc.


Bard College at Simon’s Rock
Bensalem Township, Pennsylvania
Bev-O-Matic Corporation
Blair Academy
Bloomsburg University
Blue Bottle Coffee Company
Board of Park Commissioners
Bohlin Cywinski Jackson
Borough of Conshohocken, Pennsylvania
Brooklyn, New York
Bryn Athyn College
Bucknell University
Bucks County Free Library
Buena Vista Land Corporation
Burroughs Corporation


California Institute of Technology
Capitol Commercial Corporation
Carnegie Mellon University
Catholic University of America
Cell-Bio Group Pharmaceuticals
Central Office, Washington, DC
Century Federal
Cerdec Corporation
CertainTeed/St. Gobain Corporation
Chatham College
Chestnut Hill Hospital
China Vanke Co.
City of Camden, New Jersey
City of Huntington, West Virginia
City of Johnstown, Pennsylvania
City of Newport Beach, California
City of Paterson, New Jersey
City of Philadelphia, Pennsylvania
City of Pittsburgh, Pennsylvania
City of Pottsville, Pennsylvania
City of Seattle, Washington
City of Wilkes-Barre, Pennsylvania
Clarion University
Clarkson University
Colby College
Colorado School of Mines
Columbia Catholic Housing, Incorporated
Commonwealth of Pennsylvania
Community College of Allegheny County
Contour Packaging Corporation
Coppin State College
Cornell Iron Works
Cornell University
Corning Museum of Glass
Corning, Inc.
Corporation of the Roman Catholic Clergymen
County of Bucks, Pennsylvania
County of Cumberland, Pennsylvania
County of Luzerne, Pennsylvania
County of Wyoming, Pennsylvania


Dartmouth College
Delaware County Community College
Delaware River and Bay Authority
Department of City Planning
Department of Engineering and Construction
Department of Housing and Urban Development
Department of Public Property
Department of Recreation
Department of Transportation
Department of the Air Force
Digital Video Productions, Incorporated
Dorr-Oliver, Incorporated
Drexel University
Duke University
Dwight Englewood School


East Carolina University, School of Dental Medicine
Elan Communications
Elmira College
Emma Willard School
Expedia, Inc.


FMJ Corp
Fagersta Steels Corporation
Fast Retailing
Finger Lakes Museum
First Eastern Bank
First Pennsylvania Bank
First Valley Bank
Florida State University
Franklin First Federal
Franklin Institute
Friends of Mountain Lake Park Playground


G100 Companies
Geisinger Medical Center
General Services Administration
George Mason University
Georgia Institute of Technology
Georgian Court University
Germantown Friends School
Gettysburg College
Gialina Restaurant
Gill/St. Bernard’s School
Gimbel’s Department Stores
Girard Bank
Girl Scouts of Greater Philadelphia
Grand Teton National Park Foundation
Greater Pittsburgh International Airport


Hanover Bank of Pennsylvania
Harper and Row
Harrisburg International Airport
Harrisburg Parking Authority
Harry Major Machine Company
Haverford College
Hawk Mountain Sanctuary
Hawley Silk Mill
Hermann Park Conservancy
Historical Society of Western Pennsylvania
Howard Hughes Corporation
Huntsville Golf Club


InterMetro Industries Corporation
International Brotherhood of Electrical Workers


Johns Hopkins University


Kaiser Family Foundation
Keating Development Corporation
King County Library System
King’s College


La Petite Boulangerie
La Salle University
Lafayette College
Lehigh University
Liberty Property Trust
Liquid Carbonic Corporation
Long Island Jewish Hospital
Loyola University Maryland
Luzerne County Community College


M. Berger Company
MacLean Grove and Company
Marywood University
Mellon Bank
Mercantile Stores, Incorporated
Mercy Hospital
Midwood Investment & Development
Mills College
Misericordia University
Montgomery County Community College
Mount Saint Mary’s College
Mountainside Northstar


National Park Service
NeXT Computer Corporation
Nordic Choice Hotels
Nu Skin Enterprises


Odin Property


Pennsylvania Higher Education Assistance Agency
Penn’s Woods Girl Scout Council
Philadelphia Health Maintenance Corp
Philadelphia Psychiatric Center
Philadelphia Saving Fund Society
Phoenix Manufacturing Company
Picker Chemical Company
Pittsburgh Parks Conservancy
Pixar Animation Studios
Pocono Environmental Education Center/National Park Service
Princeton University


Ramapo College of New Jersey
Reading Real Estate Company
Rensselaer Polytechnic Institute
Rochester & Pittsburgh Coal Company
Rochester Institute of Technology
Rouse Company
Royal Oil and Gas
Royer Foundry and Machine Company
Rutgers, State University of New Jersey


Sacred Heart Hospital
Salisbury School
Salisbury State University
Sandvik Incorporated
Schering Plough Corporation
School of Dental Medicine, University of Pennsylvania
Scranton School District
Seattle Public Library
Sheraton Hotels
Siebel Systems
Sigma Xi, The Scientific Honorary Society
Silver Bay Association
Smith College
Square, Inc.
St. Mary’s College of Maryland
State University of New York
Sterling Industrial Corporation
Stressteel Corporation
Su Development
Sun Petroleum Products Corporation
Susquehanna County Housing Authority
Susquehanna University
Syracuse University


Temple B’nai B’rith Housing
Temple University
The Agnes Irwin School
The Biondo Group, LLC
The Catholic University of America
The Lawrenceville School
The Local Vine
The Ohio State University
The Pennsylvania State University
The Pennsylvania State University, Erie, The Behrend College
The Pennsylvania State University, Harrisburg
The Pennsylvania State University, Hazleton
The Pennsylvania State University, University Park
The Pennsylvania State University, University Park
The Pennsylvania State University, Wilkes-Barre
Thomas Jefferson University and Hospital
Toombs Development Company
Township of Bernards, New Jersey
Towson State University
Tredyffrin Township Administration
Trinity College
Tunkhannock Area School District
Turtle Bay Exploration Park


Under Armour
United States Government
United States Postal Service
University of Arkansas
University of California, Davis
University of California, Los Angeles
University of California, Riverside
University of California, San Diego
University of California, San Francisco
University of California, Santa Cruz
University of Colorado
University of Illinois at Urbana-Champaign
University of Maryland, Baltimore
University of Nevada, Las Vegas
University of North Carolina, Chapel Hill
University of Pennsylvania
University of Pittsburgh
University of Puget Sound
University of Scranton
University of Virginia
University of Washington
University of Wisconsin, Milwaukee


Vermont Institute of Natural Science
Veterans Administration
Voyageur du Temps


WBRE Television
WDAU Television
Waldorf School of Pittsburgh
Washington University in St. Louis
Western Pennsylvania Conservancy
Westinghouse Corporation
Westinghouse Elevator Corporation
Wheeling Jesuit College
Wilkes University
Wilkes-Barre Area School District
Wilkes-Barre Industrial Fund
Wilkes-Barre, Pennsylvania
Williams College
Winchester Thurston School
Women’s Center and Shelter of Greater Pittsburgh
Women’s Shelter of the Delaware Valley
Woodrow Wilson School, Princeton University
Wyoming Historical and Geological Society
Wyoming Seminary
Wyoming Valley West School District


Yale University


Zoological Society of Philadelphia