- Abraham Lincoln Presidential Library Foundation
- Adler Planetarium & Astronomy Museum
- American Public Media
- Arizona Humane Society
- Art Gallery of Nova Scotia
- Art Gallery of Ontario
- Australian Youth Orchestra
- Barbican
- The Bentway Conservancy
- Bloedel Reserve
- California College of the Arts
- California Institute of the Arts
- Canterbury Shaker Village
- Capitol Center for the Arts
- Caramoor Center for Music and the Arts
- Cheekwood Estate and Gardens
- Chicago Botanic Garden
- Chicago Zoological Society
- The Children’s Museum of Indianapolis
- The Cleveland Orchestra
- College Art Association
- Contemporary Jewish Museum
- Corning Museum of Glass
- Creative Partnerships Australia
- Dallas Museum of Art
- Desert Botanical Garden
- EarthJustice
- Eastman School of Music
- Environmental Defense Fund
- Esplanade Pavilion Association
- The Field Museum
- The Franklin Institute
- The Frost Art Museum
- George Washington’s Mount Vernon
- Grand Canyon Conservancy
- Grant Park Music Festival
- Great Rivers Greenway District
- Great Rivers Greenway Foundation
- Hawaii Opera
- Hawaii Youth Symphony Association
- Hawaiian Humane Society
- Hawaiian Islands Land Trust
- The Henry Ford Museum
- Historic England
- Holden Forests & Gardens
- Honolulu Museum of Art
- Houston Grand Opera
- Jackson Hole Land Trust
- Japanese American National Museum
- The Jewish Museum of Florida – FIU
- John and Mable Ringling Museum of Art
- Kemper Museum of Contemporary Art
- Lake Forest Open Lands Association
- Land Trust of Napa County
- Library of Congress
- Lincoln Center for the Performing Arts, Inc.
- London Symphony Orchestra
- Longwood Gardens
- Los Angeles County Museum of Art
- Los Angeles County, Museum of Natural History Foundation
- Los Angeles Opera
- Los Angeles Philharmonic
- Marin Agricultural Land Trust
- The Menokin Foundation
- The Minneapolis Institute of Arts
- Missouri Botanical Garden
- Moody Center for the Arts at Rice University
- The Morton Arboretum
- Moss Mountain Farm
- Museum of Contemporary Art, Chicago
- Museum of Fine Arts, Boston
- Museum of New Mexico Foundation
- The Museum of Osteopathic Medicine at A.T. Still University
- Nashville Symphony
- National Archives Foundation
- National Park Foundation
- National Recreation and Park Association
- National Trust for Historic Preservation
- Natural History Museum of Utah
- Natural Resources Defense Council
- North House Folk School
- Ojai Music Festival
- PBS Foundation
- Palm Springs Art Museum
- The Perlman Music Program
- The Philadelphia Orchestra
- Phoenix Art Museum
- Poetry in Voice
- Point Blue Conservation Science
- The Power Plant
- Public Radio International
- Queensland Theatre Company
- REI Foundation
- Real Art Ways
- Regent Park School of Music Foundation
- Rhode Island School of Design
- Rochester Philharmonic Orchestra
- Royal Botanic Gardens, Kew
- The Royal Institution
- Royal Ontario Museum Governors
- Royal Parks Foundation
- The Royal Philatelic Society London
- San Diego Symphony
- San Diego Zoo Wildlife Alliance
- San Francisco Symphony
- San Juan Preservation Trust
- Santa Barbara Museum of Art
- Save the Redwoods League
- Science Museum Group
- Smithsonian Astrophysical Observatory
- Smithsonian Institution
- Smithsonian National Air and Space Museum
- Smithsonian National Museum of Natural History
- Southern California Public Radio – KPCC
- Strawbery Banke Museum
- The Strong National Museum of Play
- Tate
- Texas Ballet Theater
- Toledo Museum of Art
- Trinity Park Conservancy
- Troy Savings Bank Music Hall
- The Trust for Public Land
- University of California, Agriculture and Natural Resources
- Vail Valley Foundation
- Victoria and Albert Museum
- Vizcaya Museum and Gardens
- The Washington Ballet
- Wave Hill
- The White House Historical Association
- World Wildlife Fund
- Young People’s Theatre