• Clarion University of Pennsylvania
• Edinboro (PA) University Foundation
• Juniata College

• George Zamias, Developer
• John E. Holtzinger, Developer
• John Fogarty Custom Built Homes, Inc.
• Lake Raystown Resort and Lodge
• THF Realty
• Tri-County Housing and Redevelopment Authorities

• A.D. Marble & Company, Inc.
• Bassett Engineering
• Benatec Associates, Inc.
• Buchart-Horn, Inc.
• CET Engineering, Inc.
• Dawood Engineering
• Dana Boob Engineering
• EADS Architects
• The EADS Group, Inc.
• Environmental Consulting and Technology, Inc.
• Erdman, Anthony, Associates, Inc.
• Frederick R. Harris, Inc.
• Frens and Frens, LLC
• GAI Consultants, Inc.
• Gannett Fleming, Inc.
• Gibson-Thomas Engineering
• Greenhorne & O'Mara, Inc.
• Gwin, Dobson, & Foreman, Inc.
• Herbert, Rowland and Grubic, Inc.
• Innovative Consulting Group, Inc.
• John Bowie Associates
• Johnson, Mirraman & Thompson
• KCI Technologies, Inc.
• Keller Engineers, Inc.
• L. Robert Kimball & Associates
• Larson Design Group
• Lee-Simpson Associates, Inc.
• Leonard J. Facciani & Associates
• McCormick, Taylor & Associates, Inc.
• ms consultants
• New Enterprise Stone and Lime Co., Inc.
• Northwest Engineering
• P. Joseph Lehman, Inc., Consulting
• Pellegrini Engineers, Inc.
• PennTerra Engineering, Inc.
• SAI Consulting Engineers, Inc.
• Sheladia Associates, Inc.
• TriLine Associates, Inc.
• STV, Incorporated
• Uni-Tec Consulting Engineers, Inc.
• Widmer Engineering, Inc.
• Wilbur Smith Associates

Media and Entertainment

• Discovery Communications, Inc.
• Society for Science and the Public

Museums and Cultural Agencies

• Boulder (CO) Historical Society
• Center for Science Teaching and Learning
• Colorado Springs (CO) Fine Arts Center
• Erie (PA) Coalition of Historical Organizations
• Erie County Historical Society and Museums
• Goodell Gardens and Homestead
• Heritage Development Group, Inc. (KS)
• Huntingdon (PA) County Historical Society
• Key West Tropical Forest and Botanical Garden
• Kansas Council on the Humanities
• Longmont (CO) Museum
• Old Island Restoration Foundation (FL)
• Rosemount Museum (CO)
• Sanborn (NY) Area Historical Society
• Wichita-Sedgwick County (KS) Historical Museum

• Arizona State Parks Department
• Borough of Downingtown, PA
• City of Dodge City, KS
• City of Thornton, CO
• Colorado Historical Society
• Erie County (PA) Planning Department and Coastal Zone Management Agency
• Ford County, KS
• Maryland State Highway Administration
• Northern Blair County Regional Sewer Authority
• Oil Creek Railway Historical Society, PA
• Oil Region Alliance of Business, Industry and Tourism, PA
• Pennsylvania Bureau of Abandoned Mine Reclamation
• Pennsylvania Department of Conservation and Natural Resources
• Pennsylvania Department of Environmental Protection
• Pennsylvania Department of General Services
• Pennsylvania Department of Transportation
• Pennsylvania Fish and Boat Commission
• Pennsylvania Historical and Museum Commission
• Pennsylvania Turnpike Commission
• Pittsburgh (PA) Department of City Planning
• Potter County (PA) Housing and Redevelopment Authorities
• Town of Lewiston, NY
• U.S. Army Corps of Engineers
• U.S. Department of the Interior, National Park Service
• U.S. Forest Service

• Columbia Gas Transmission Corporation
• Sprint PCI