Here's a list of the top independent, nonprofit photography centers in the U.S., ranked according to their total annual revenues.
International Center of Photography (New York, NY) – $15,275,484
George Eastman House (Rochester, NY) – $7,540,403
Aperture Foundation (New York, NY) – $5,159,228
Museum of Photographic Arts (San Diego, CA) – $2,190,755
Houston Center for Photography (Houston, TX) – $846,341
Visual Studies Workshop (Rochester, NY) – $494,777
Light Factory (Charlotte, NC) – $450,696
Photo Center Northwest (Seattle, WA) – $435,807
Newspace Center for Photography (Portland, OR) – $410,241
Florida Museum of Photographic Arts (Tampa, FL) – $341,001
Chicago Photography Center (Chicago, IL) – $336,697
Center for Photography at Woodstock (Woodstock, NY) – $334,496
Photographic Resource Center (Boston, MA) – $286,078*
Baxter Street at the Camera Club of New York (New York, NY) – $281,142
Center for Fine Art Photography (Ft Collins, CO) – $277,558
Center (Santa Fe, NM) – $277,341
San Francisco Camerawork (San Francisco, CA) – $247,743
Griffin Museum of Photography (Winchester, MA) – $232,322
Blue Sky Gallery/Oregon Center for Photographic Arts (Portland, OR) – $186,341
Center for Photographic Art (Carmel, CA) – $184,869
Philadelphia Photo Arts Center (Philadelphia, PA) – $171,743
International Photography Hall of Fame and Museum (St Louis, MO) – $160,191
Colorado Photographic Arts Center (Denver, CO) - $142,397
* Although the Photographic Resource Center is located on the campus of Boston University, it is an independent organization.
The caveats for this list are:
These are completely independent organizations that provide educational and community services such as classes, an exhibition space, library or outreach services. There are other large organizations that are not independent, like the Center for Creative Photography, or that are focused on promoting the work of a specific photographer, like the Robert Maplethorpe Foundation. I did not include those types of organizations in this list.
The revenue amounts are for fiscal year 2013. That's the most recent year in which the 990 tax forms are readily available online for all of these organizations. Some organizations report their financial information based on a calendar year, and some report on a July-to-June fiscal year. I've intermingled both here for the sake of simplicity.
I've included only those organizations with revenues of at least $100,000.
I use GuideStar to review the 990s and compile this information. I'll update this list annually as new tax returns are available online.