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NonprofitTruth

Updated April 2026

By Revenue Size

Medium Nonprofits

Medium Nonprofits on NonprofitTruth includes 459 organizations with combined revenue of $20.4B, drawn from IRS Form 990 filings. The average Efficiency Score across the band is 70/100.

Organizations with $10 million to $100 million in annual revenue

459
Nonprofits
$20.4B
Combined Revenue
70/100
Avg Efficiency

What This Revenue Tier Looks Like

Mid-sized nonprofits — $10M to $100M in annual revenue — capture a wide range of established regional and specialized national organizations. The 459 entities in this band typically have full-time professional staff, audited financials, and meaningful reserves. They are also the most heterogeneous group in the dataset; cross-comparison within this tier benefits strongly from filtering further by NTEE category.

Mid-sized nonprofits ($10M–$100M in annual revenue) are typically regional charities, community foundations, mid-tier hospitals, private secondary schools, or large local social-service agencies. Schedule J disclosure of executive compensation is the norm at this scale.

Revenue-tier filters group nonprofits by annual reported revenue from the most recent Form 990. The 459 medium nonprofits in this band give a like-for-like comparison set, since fundraising structure, staffing model, and reporting depth all vary substantially by organizational scale.

The 459 medium nonprofits in this view together report $20.4B in combined annual revenue on their most recent IRS Form 990 filings. Median revenue is $39.1M, and the simple average is $44.3M — a gap that reflects the long-tail distribution typical of the nonprofit sector, where a handful of large organizations account for most aggregate dollars.

Across the 459 medium nonprofits we track, 65 earn an A and 260 earn a B on the Efficiency Score (combined 71% in the top two tiers, with A-grade organizations alone at 14%). Another 134 land at C, 0 at D, and 0 at F — a combined 0% in the bottom two tiers based on program ratio, reserves, growth consistency, and CEO-comp ratio drawn from each organization's most recent Form 990.

Executive compensation detail is reported on Schedule J of the Form 990 and is not always present for every organization in this list — particularly the smaller filers using Form 990-EZ.

Robert W Woodruff Arts Center Inc

Arts, Culture & HumanitiesGeorgia
$99.8M
C

Museum Of Fine Arts

Arts, Culture & HumanitiesMassachusetts
$99.6M
C

National Arbor Day Foundation

Environment & AnimalsNebraska
$99.1M
A

Playhouse Square Foundation

Arts, Culture & HumanitiesOhio
$97.2M
C

University Impact

EducationUtah
$97.1M
B

Philharmonic Symphony Society Of New York Inc

Arts, Culture & HumanitiesNew York
$96.9M
C

Culver Educational Foundation

EducationIndiana
$96.4M
C

Urban Land Institute

Environment & AnimalsDistrict of Columbia
$95.6M
A

Harvard Private Capital Holdings Inc

EducationMassachusetts
$95.1M
C

Washington College

EducationMaryland
$94.4M
C

Robert W Woodruff Health Sciences Center Fund Inc

EducationGeorgia
$94.3M
C

Chicago Zoological Society

Environment & AnimalsIllinois
$94.3M
C

Boston Symphony Orchestra Inc

Arts, Culture & HumanitiesMassachusetts
$93.2M
B

Shedd Aquarium Society

Environment & AnimalsIllinois
$93.0M
C

San Diego Symphony Orchestra Association

Arts, Culture & HumanitiesCalifornia
$93.0M
B

The Animal Medical Center

Environment & AnimalsNew York
$91.9M
B

Interlochen Center For The Arts

Arts, Culture & HumanitiesMichigan
$91.8M
C

Woodward Academy Inc

EducationGeorgia
$91.6M
C

Minnesota Historical Society

Arts, Culture & HumanitiesMinnesota
$91.5M
B

National September 11 Memorial And Museum At The World Trade Center

Arts, Culture & HumanitiesNew York
$90.3M
B

Pittsburgh Cultural Trust

Arts, Culture & HumanitiesPennsylvania
$89.9M
C

Sierra Club Foundation

Environment & AnimalsCalifornia
$89.1M
B

Opas Foundation

Arts, Culture & HumanitiesNebraska
$88.7M
B

Social And Environmental Entrepreneurs Inc

Environment & AnimalsCalifornia
$87.5M
A

Columbus Zoological Park Association

Environment & AnimalsOhio
$87.3M
C

Indiana Institute Of Technology Inc

EducationIndiana
$87.2M
B

New York Botanical Garden

Environment & AnimalsNew York
$87.2M
B

Hood College Of Frederick Md

EducationMaryland
$86.9M
B

Royal Shakespeare

Arts, Culture & HumanitiesUnknown
$86.4M
B

San Francisco Opera Association

Arts, Culture & HumanitiesCalifornia
$85.3M
B

Natl Sept 11 Memorial And Museum At The World Trade Center Fdn Inc

Arts, Culture & HumanitiesNew York
$84.5M
B

National Trust For Historic Preservation In The United States

Arts, Culture & HumanitiesDistrict of Columbia
$83.6M
B

Solomon R Guggenheim Foundation

Arts, Culture & HumanitiesNew York
$82.6M
B

Houston Zoo Inc

Environment & AnimalsTexas
$82.5M
C

Houston Museum Of Natural Science

Arts, Culture & HumanitiesTexas
$82.1M
B

Great Lakes Fishery Commission

Environment & AnimalsMichigan
$82.1M
A

The Edison Institute Inc

Arts, Culture & HumanitiesMichigan
$81.9M
C

National World War Ii Museum Inc

Arts, Culture & HumanitiesLouisiana
$81.8M
C

Los Angeles County Museum Of Natural History Foundation

Arts, Culture & HumanitiesCalifornia
$81.6M
B

Spencer Foundation

EducationIllinois
$81.5M
C

Chicago Symphony Orchestra

Arts, Culture & HumanitiesIllinois
$80.8M
C

New Jersey Performing Arts Center Corporation

Arts, Culture & HumanitiesNew Jersey
$80.4M
B

Fayetteville Performing Arts Center At Trilith

Arts, Culture & HumanitiesGeorgia
$80.2M
C

Alliance To End Plastic Waste Inc

Environment & AnimalsTexas
$80.1M
A

Stony Brook Foundation Inc

EducationNew York
$79.5M
C

World Trade Center Performing Arts Center Inc

Arts, Culture & HumanitiesNew York
$79.4M
C

Academy Museum Foundation

Arts, Culture & HumanitiesCalifornia
$79.2M
B

Paintcare Inc

Environment & AnimalsDistrict of Columbia
$78.8M
A

Academy Foundation

Arts, Culture & HumanitiesCalifornia
$78.7M
B

California Science Center Foundation

Arts, Culture & HumanitiesCalifornia
$77.5M
C

New York City Ballet Inc

Arts, Culture & HumanitiesNew York
$77.4M
C

Chicago Horticultural Society

Environment & AnimalsIllinois
$76.9M
B

The Musical Arts Association

Arts, Culture & HumanitiesOhio
$76.8M
B

Seattle Theatre Group

Arts, Culture & HumanitiesWashington
$75.6M
B

Manhattan School Of Music

Arts, Culture & HumanitiesNew York
$75.5M
A

Milwaukee World Festival Inc

Arts, Culture & HumanitiesWisconsin
$75.4M
B

Multiplier

Environment & AnimalsCalifornia
$75.0M
A

Open Space Institute Land Trust Inc

Environment & AnimalsNew York
$74.8M
B

The Colburn School

Arts, Culture & HumanitiesCalifornia
$74.2M
B

Academy Of Mathematics & Science South Inc

Arts, Culture & HumanitiesArizona
$73.8M
A

New York Public Radio

Arts, Culture & HumanitiesNew York
$73.7M
B

Massachusetts Audubon Society Inc

Environment & AnimalsMassachusetts
$73.7M
B

Carnegie Institute

Arts, Culture & HumanitiesPennsylvania
$73.2M
C

The Carnegie Hall Corporation

Arts, Culture & HumanitiesNew York
$72.8M
C

Southwestern Medical Foundation

EducationTexas
$72.8M
C

Wolf Trap Foundation For The Performing Arts

Arts, Culture & HumanitiesVirginia
$72.6M
A

Museum Of Science

Arts, Culture & HumanitiesMassachusetts
$72.5M
B

California Academy Of Sciences

Arts, Culture & HumanitiesCalifornia
$71.5M
C

The Detroit Institute Of Arts

Arts, Culture & HumanitiesMichigan
$71.2M
C

San Francisco Symphony

Arts, Culture & HumanitiesCalifornia
$71.1M
C

Omaha Zoological Society Inc

Environment & AnimalsNebraska
$70.8M
B

Roundabout Theatre Company Inc

Arts, Culture & HumanitiesNew York
$69.9M
B

People For The Ethical Treatment Of Animals Inc

Environment & AnimalsVirginia
$69.9M
A

Alamo Trust Inc

Arts, Culture & HumanitiesTexas
$69.6M
B

Dr Phillips Center For The Performing Arts Inc

Arts, Culture & HumanitiesFlorida
$67.6M
B

San Diego Humane Society And S P C A

Environment & AnimalsCalifornia
$67.2M
A

Music And Event Management Inc

Arts, Culture & HumanitiesOhio
$66.9M
B

Navy Pier Inc

Arts, Culture & HumanitiesIllinois
$66.9M
B

Denver Center For The Performing Arts

Arts, Culture & HumanitiesColorado
$66.8M
B

Florida West Coast Symphony Inc

Arts, Culture & HumanitiesFlorida
$66.5M
C

Mount Vernon Ladies Association Of The Union

Arts, Culture & HumanitiesVirginia
$66.1M
C

Rocky Mountain Elk Foundation Inc

Environment & AnimalsMontana
$66.0M
B

New England Aquarium Corporation

Environment & AnimalsMassachusetts
$65.4M
B

Museum Of Flight Foundation

Arts, Culture & HumanitiesWashington
$65.3M
B

Performing Arts Center Of Los Angeles County

Arts, Culture & HumanitiesCalifornia
$65.3M
B

Atlanta Botanical Garden Inc

Environment & AnimalsGeorgia
$65.3M
B

Governors Island Corporation

Environment & AnimalsNew York
$65.2M
B

Woodland Park Zoological Society

Environment & AnimalsWashington
$64.7M
A

Radio Free Asia

Arts, Culture & HumanitiesDistrict of Columbia
$64.6M
B

Kenneth C Griffin Museum Of Science And Industry

Arts, Culture & HumanitiesIllinois
$64.4M
C

North Carolina State University Foundation Inc

EducationNorth Carolina
$64.3M
B

Minneapolis Society Of Fine Arts

Arts, Culture & HumanitiesMinnesota
$63.9M
B

San Antonio Zoological Society Inc

Environment & AnimalsTexas
$63.8M
B

The Saint Louis Zoo Foundation

Environment & AnimalsMissouri
$63.3M
B

Consortium For Energy Environment And Demilitarization

Environment & AnimalsDistrict of Columbia
$63.0M
C

Trout Unlimited Inc

Environment & AnimalsVirginia
$62.7M
B

Friends Of The Zoo Inc Of Kansas City Mo

Environment & AnimalsMissouri
$62.5M
B

Indianapolis Museum Of Art Inc

Arts, Culture & HumanitiesIndiana
$62.0M
B

San Antonio Valley Ranch Llc

Arts, Culture & HumanitiesCalifornia
$61.9M
B

Petsmart Charities Inc

Environment & AnimalsArizona
$61.9M
A

Denver Zoological Foundation Inc

Environment & AnimalsColorado
$61.8M
B

San Francisco Museum Of Modern Art

Arts, Culture & HumanitiesCalifornia
$61.2M
C

The Exploratorium

Arts, Culture & HumanitiesCalifornia
$61.0M
C

The Barn Group Land Trust Inc

Environment & AnimalsGeorgia
$60.9M
B

Walker Art Center Inc

Arts, Culture & HumanitiesMinnesota
$60.7M
B

Royal Ontario Museum

Arts, Culture & HumanitiesUnknown
$60.7M
B

Shed Nyc Inc

Arts, Culture & HumanitiesNew York
$60.6M
C

Norton Museum Of Art Inc

Arts, Culture & HumanitiesFlorida
$60.3M
B

Kimbell Art Foundation

Arts, Culture & HumanitiesTexas
$59.9M
C

San Francisco Ballet Association

Arts, Culture & HumanitiesCalifornia
$59.8M
B

Lyric Opera Of Chicago

Arts, Culture & HumanitiesIllinois
$59.7M
C

Ducks Unlimited Inc

Environment & AnimalsTennessee
$59.3M
C

Stand Together Trust

EducationVirginia
$58.7M
B

Polynesian Cultural Center

Arts, Culture & HumanitiesHawaii
$58.2M
A

Ressler Gertz Foundation

EducationCalifornia
$58.2M
A

Pro Publica Inc

Arts, Culture & HumanitiesNew York
$58.0M
A

Twin Cities Public Television Inc

Arts, Culture & HumanitiesMinnesota
$57.8M
B

Country Music Foundation Inc

Arts, Culture & HumanitiesTennessee
$57.1M
B

Aquarium Of The Pacific

Environment & AnimalsCalifornia
$57.0M
B

Oregon Public Broadcasting

Arts, Culture & HumanitiesOregon
$56.8M
B

The Colorado Museum Of Natural History

Arts, Culture & HumanitiesColorado
$55.7M
B

National Aquarium Inc

Environment & AnimalsMaryland
$55.6M
B

Missouri Botanical Garden Board Of Trustees

Environment & AnimalsMissouri
$55.5M
C

Philadelphia Orchestra Association

Arts, Culture & HumanitiesPennsylvania
$55.2M
C

Ahimsa Foundation

Environment & AnimalsColorado
$55.1M
B

Rock And Roll Hall Of Fame And Museum Inc

Arts, Culture & HumanitiesOhio
$54.8M
C

Detroit Zoological Society

Environment & AnimalsMichigan
$54.3M
A

Corporation Of The Fine Arts Museums

Arts, Culture & HumanitiesCalifornia
$54.3M
B

National Wild Turkey Federation Inc

Environment & AnimalsSouth Carolina
$54.1M
B

New York Historical Society

Arts, Culture & HumanitiesNew York
$54.0M
B

Ravinia Festival Association

Arts, Culture & HumanitiesIllinois
$53.5M
C

Seattle Aquarium Society Seas

Environment & AnimalsWashington
$53.3M
B

Rewild

Environment & AnimalsTexas
$53.3M
B

New Orleans Jazz & Heritage Foundation Inc

Arts, Culture & HumanitiesLouisiana
$53.2M
B

Adrienne Arsht Center Trust Inc

Arts, Culture & HumanitiesFlorida
$53.1M
B

Fort Worth Zoological Association Inc

Environment & AnimalsTexas
$53.1M
A

Golden Gate National Parks Conservancy

Environment & AnimalsCalifornia
$52.9M
B

Kaizen Educational Foundation

Arts, Culture & HumanitiesArizona
$52.6M
A

Wildlife Conservation Network Inc

Environment & AnimalsCalifornia
$52.5M
A

Walton Arts Center Council Inc

Arts, Culture & HumanitiesArkansas
$52.3M
B

Saint Louis Symphony Orchestra

Arts, Culture & HumanitiesMissouri
$52.2M
B

Carnegie Hall Society Inc

Arts, Culture & HumanitiesNew York
$51.8M
C

Shen Yun Performing Arts Inc

Arts, Culture & HumanitiesNew York
$51.5M
B

League Of Conservation Voters Education Fund

Environment & AnimalsDistrict of Columbia
$51.5M
B

Cincinnati Symphony Orchestra

Arts, Culture & HumanitiesOhio
$51.1M
C

Brooklyn Institute Of Arts And Sciences

Arts, Culture & HumanitiesNew York
$50.9M
C

Elevate Energy

Environment & AnimalsIllinois
$50.9M
B

Trustees Of Reservations

Environment & AnimalsMassachusetts
$50.5M
C

Our Rescue

Arts, Culture & HumanitiesUtah
$50.4M
B

New York Shakespeare Festival

Arts, Culture & HumanitiesNew York
$50.4M
B

Stanford Health Care Advantage

Environment & AnimalsCalifornia
$50.2M
B

Indianapolis Zoological Society Inc

Environment & AnimalsIndiana
$50.1M
C

Childrens Museum Of Indianapolis Incorporated

Arts, Culture & HumanitiesIndiana
$49.8M
C

National Cable Satellite Corporation

Arts, Culture & HumanitiesDistrict of Columbia
$49.4M
C

Chautauqua Institution

Arts, Culture & HumanitiesNew York
$49.3M
C

National Inventors Hall Of Fame Inc

Arts, Culture & HumanitiesOhio
$49.3M
A

Ocean Conservancy Inc

Environment & AnimalsDistrict of Columbia
$48.6M
A

Lincoln Park Zoological Society

Environment & AnimalsIllinois
$48.4M
C

Napa County Land Trust

Environment & AnimalsCalifornia
$48.1M
C

Whyy Inc

Arts, Culture & HumanitiesPennsylvania
$48.1M
B

Toledo Zoological Society

Environment & AnimalsOhio
$47.5M
B

Nashville Zoo Inc

Environment & AnimalsTennessee
$47.4M
C

Woodlands Center For The Performing Arts

Arts, Culture & HumanitiesTexas
$47.4M
B

The Studio Museum In Harlem

Arts, Culture & HumanitiesNew York
$47.2M
C

C40 Cities Climate Leadership Group Inc

Environment & AnimalsNew York
$47.2M
B

Arizona Center For Nature Conservation

Environment & AnimalsArizona
$46.7M
B

Atlanta Fulton County Zoo Inc

Environment & AnimalsGeorgia
$46.5M
B

Oceana Inc

Environment & AnimalsDistrict of Columbia
$46.5M
A

Clean Air Task Force Inc

Environment & AnimalsMassachusetts
$46.3M
B

National Trust For Local News

Arts, Culture & HumanitiesColorado
$46.1M
A

Appalachian Mountain Club

Environment & AnimalsMassachusetts
$46.0M
C

Denver Botanic Garden Inc

Environment & AnimalsColorado
$46.0M
B

San Francisco Society For The Prevention Of Cruelty To Animals

Environment & AnimalsCalifornia
$46.0M
B

Slipstream Group Inc

Environment & AnimalsWisconsin
$45.8M
B

North Carolina Performing Arts Center At Charlotte Foundation

Arts, Culture & HumanitiesNorth Carolina
$45.7M
B

Center Theatre Group Of Los Angeles

Arts, Culture & HumanitiesCalifornia
$45.6M
B

Birdlife International

Environment & AnimalsUnknown
$45.6M
B

American Theatre Guild

Arts, Culture & HumanitiesMissouri
$45.4M
B

Morton Arboretum

Environment & AnimalsIllinois
$45.1M
C

Hennepin Theatre Tr

Arts, Culture & HumanitiesMinnesota
$45.1M
B

North Shore Animal League America Inc

Environment & AnimalsNew York
$45.1M
A

Minnesota Orchestral Association

Arts, Culture & HumanitiesMinnesota
$45.0M
C

Sundance Institute

Arts, Culture & HumanitiesUtah
$45.0M
B

Sustainable Energy Utility Inc

Environment & AnimalsDelaware
$45.0M
B

The Smith Center For The Performing Arts

Arts, Culture & HumanitiesNevada
$44.8M
C

Denver Art Museum Inc

Arts, Culture & HumanitiesColorado
$44.7M
C

National Outdoor Leadership School

Environment & AnimalsWyoming
$44.7M
B

International Centre For Research In Agroforestry

Environment & AnimalsUnknown
$44.4M
B

Memphis Brooks Museum Of Art Inc

Arts, Culture & HumanitiesTennessee
$44.3M
C

Great Basin Institute

Environment & AnimalsNevada
$44.2M
B

American Printing House For The Blind Inc

Arts, Culture & HumanitiesKentucky
$43.9M
B

Grid Alternatives

Environment & AnimalsCalifornia
$43.8M
B

Ceres Inc

Environment & AnimalsMassachusetts
$43.5M
B

Zoological Society Of Philadelphia

Environment & AnimalsPennsylvania
$43.4M
B

Boston Ballet Inc

Arts, Culture & HumanitiesMassachusetts
$43.1M
B

Hale Centre Theatre

Arts, Culture & HumanitiesUtah
$43.0M
C

Dallas Symphony Association Inc

Arts, Culture & HumanitiesTexas
$42.8M
B

Peace Center Foundation

Arts, Culture & HumanitiesSouth Carolina
$42.8M
B

Global Greengrants Fund Inc

Environment & AnimalsColorado
$42.6M
B

Buffalo Bayou Partnership

Environment & AnimalsTexas
$42.6M
B

Mattress Recycling Council

Environment & AnimalsVirginia
$42.2M
B

Audubon Nature Institute Inc

Environment & AnimalsLouisiana
$42.1M
B

Mann Center For The Performing Arts

Arts, Culture & HumanitiesPennsylvania
$41.7M
A

Navy Seal Foundation Inc

Arts, Culture & HumanitiesVirginia
$41.5M
B

Fox Theatre Inc

Arts, Culture & HumanitiesGeorgia
$41.4M
C

Jorge M Perez Art Museum Of Miami Dade County Inc

Arts, Culture & HumanitiesFlorida
$41.3M
C

U S Green Building Council Inc

Environment & AnimalsDistrict of Columbia
$41.2M
B

Partnership Project Inc

Environment & AnimalsDistrict of Columbia
$41.1M
A

Palladium Foundation

Environment & AnimalsUtah
$41.1M
B

Close Up Foundation

Arts, Culture & HumanitiesVirginia
$41.1M
B

William & Mary Foundation

EducationVirginia
$41.1M
C

American Conservation

Environment & AnimalsArizona
$41.0M
B

Arizona Humane Society

Environment & AnimalsArizona
$40.9M
B

Florida Aquarium Inc

Environment & AnimalsFlorida
$40.7M
A

Volgenau Foundation

Environment & AnimalsVirginia
$40.6M
C

Fresnos Chaffee Zoo Corporation

Environment & AnimalsCalifornia
$40.4M
B

Thanksgiving Point Institute Inc

Environment & AnimalsUtah
$40.0M
C

Fractured Atlas Inc

Arts, Culture & HumanitiesNew York
$39.9M
B

The Hobby Center Foundation

Arts, Culture & HumanitiesTexas
$39.8M
B

Uss Midway Museum

Arts, Culture & HumanitiesCalifornia
$39.8M
B

American Film Institute Inc

Arts, Culture & HumanitiesCalifornia
$39.7M
B

Los Angeles Opera Company

Arts, Culture & HumanitiesCalifornia
$39.7M
B

Franklin Institute

Arts, Culture & HumanitiesPennsylvania
$39.6M
B

Milwaukee Repertory Theater Inc

Arts, Culture & HumanitiesWisconsin
$39.6M
C

Lowry Park Zoological Society Of Tampa Inc

Environment & AnimalsFlorida
$39.4M
B

Borealis Philanthropy

Arts, Culture & HumanitiesMinnesota
$39.4M
B

Detroit Symphony Orchestra Hall Inc

Arts, Culture & HumanitiesMichigan
$39.2M
B

Wilderness Society

Environment & AnimalsDistrict of Columbia
$39.2M
B

Sustainable Markets Foundation

Environment & AnimalsNew York
$39.2M
B

Window To The World Communications Inc

Arts, Culture & HumanitiesIllinois
$39.1M
B

Climate And Clean Energy Equity Fund

Environment & AnimalsDistrict of Columbia
$39.1M
C

Houston Ballet Foundation

Arts, Culture & HumanitiesTexas
$38.8M
B

Save The Redwoods League

Environment & AnimalsCalifornia
$38.8M
B

Jserra Catholic High School

Arts, Culture & HumanitiesCalifornia
$38.6M
B

Cascade Public Media

Arts, Culture & HumanitiesWashington
$38.6M
C

Cdp North America Inc

Environment & AnimalsNew York
$38.4M
B

Open Technology Fund

Arts, Culture & HumanitiesDistrict of Columbia
$38.0M
A

Montana Land Reliance

Environment & AnimalsMontana
$37.9M
B

Pennsylvania Horticultural Society

Environment & AnimalsPennsylvania
$37.8M
B

Guthrie Theatre Foundation

Arts, Culture & HumanitiesMinnesota
$37.4M
B

Jacksonville Zoological Society Inc

Environment & AnimalsFlorida
$37.3M
B

The Santa Fe Opera

Arts, Culture & HumanitiesNew Mexico
$37.3M
C

Crosswater Canyon Inc

Arts, Culture & HumanitiesKentucky
$37.3M
B

Dia Center For The Arts Inc

Arts, Culture & HumanitiesNew York
$37.2M
C

Alvin Ailey Dance Foundation Inc

Arts, Culture & HumanitiesNew York
$37.2M
C

The Recycling Partnership Inc

Environment & AnimalsDistrict of Columbia
$37.1M
A

Public Media Group Of Southern California

Arts, Culture & HumanitiesCalifornia
$37.1M
B

Artis Naples Inc

Arts, Culture & HumanitiesFlorida
$36.9M
C

International Sustainable Energy Foundation

Environment & AnimalsTexas
$36.9M
A

Robert Rauschenberg Foundation

Arts, Culture & HumanitiesNew York
$36.5M
B

Center For International Forestry Research

Environment & AnimalsUnknown
$35.9M
B

Defenders Of Wildlife

Environment & AnimalsDistrict of Columbia
$35.9M
A

Ballet Theatre Foundation Inc

Arts, Culture & HumanitiesNew York
$35.9M
B

Oregon Shakespeare Festival Association

Arts, Culture & HumanitiesOregon
$35.8M
B

Elemental Excelerator Inc

Environment & AnimalsHawaii
$35.7M
A

Medal Of Honor Museum Foundation

Arts, Culture & HumanitiesTexas
$35.6M
C

Northwest Energy Efficiency Alliance Inc

Environment & AnimalsOregon
$35.5M
B

International Fund For Animal Welfare Inc

Environment & AnimalsMassachusetts
$35.2M
A

National Parks Conservation Association

Environment & AnimalsDistrict of Columbia
$35.1M
B

Science Museum Of Minnesota

Arts, Culture & HumanitiesMinnesota
$35.1M
B

Thomas Jefferson Foundation Inc

Arts, Culture & HumanitiesVirginia
$35.0M
C

Earth Island Institute Inc

Environment & AnimalsCalifornia
$34.9M
A

National Society Of The Daughters Of The American Revolution

Arts, Culture & HumanitiesDistrict of Columbia
$34.8M
B

Jazz At Lincoln Center Inc

Arts, Culture & HumanitiesNew York
$34.6M
C

Karuna Foundation

Environment & AnimalsColorado
$34.5M
B

Center For Biological Diversity Inc

Environment & AnimalsArizona
$34.5M
A

Western Pennsylvania Conservancy

Environment & AnimalsPennsylvania
$34.5M
C

Southern California Public Radio

Arts, Culture & HumanitiesCalifornia
$34.2M
B

Common Sense Media

Arts, Culture & HumanitiesCalifornia
$34.0M
B

The Wild Animal Sanctuary A Colorado Non Profit Corporation

Environment & AnimalsColorado
$33.9M
A

White House Historical Association

Arts, Culture & HumanitiesDistrict of Columbia
$33.8M
B

Chicago Public Media Inc

Arts, Culture & HumanitiesIllinois
$33.8M
C

African Wildlife Foundation

Environment & AnimalsDistrict of Columbia
$33.7M
A

Health Education Learning Project H E L P

Arts, Culture & HumanitiesTexas
$33.6M
A

Marine Stewardship Council

Environment & AnimalsUnknown
$33.6M
A

Statue Of Liberty Ellis Island Foundation Inc

Arts, Culture & HumanitiesNew York
$33.5M
C

Wang Theatre Inc

Arts, Culture & HumanitiesMassachusetts
$33.5M
B

Hope Media Group

Arts, Culture & HumanitiesTexas
$33.4M
B

Houston Symphony Society

Arts, Culture & HumanitiesTexas
$33.4M
B

Sunrise Project Inc

Environment & AnimalsDelaware
$33.3M
B

Virginia Museum Of Fine Arts Foundation

Arts, Culture & HumanitiesVirginia
$33.3M
C

Serc Reliability Corporation

Environment & AnimalsNorth Carolina
$33.2M
B

Helen Marie Taylor Charitable Foundation Inc

Arts, Culture & HumanitiesVirginia
$33.2M
C

Colorado Open Lands

Environment & AnimalsColorado
$33.1M
B

Product Care Association

Environment & AnimalsUnknown
$32.8M
A

American Battlefield Tr

Arts, Culture & HumanitiesDistrict of Columbia
$32.7M
C

Sea Research Foundation Inc

Environment & AnimalsConnecticut
$32.6M
B

American Council Of Learned Societies

Arts, Culture & HumanitiesNew York
$32.5M
C

Paper Mill Playhouse

Arts, Culture & HumanitiesNew Jersey
$32.5M
B

Cheyenne Mountain Zoological Society

Environment & AnimalsColorado
$32.5M
B

National Football Museum Inc

Arts, Culture & HumanitiesOhio
$32.5M
A

National Board Of Osteopathic Medical Examiners Inc

Arts, Culture & HumanitiesIllinois
$32.4M
B

Dallas Zoo Management Inc

Environment & AnimalsTexas
$32.4M
B

Paws Chicago

Environment & AnimalsIllinois
$32.4M
B

Chesapeake Bay Foundation Inc

Environment & AnimalsMaryland
$32.2M
C

Catskill Watershed Corporation

Environment & AnimalsNew York
$31.9M
B

Omaha Zoo Foundation

Environment & AnimalsNebraska
$31.9M
B

Ruth Eckerd Hall Inc

Arts, Culture & HumanitiesFlorida
$31.9M
B

Securing Assets For Education

EducationSouth Carolina
$31.7M
B

Tennessee Aquarium

Environment & AnimalsTennessee
$31.5M
B

Commonwealth Zoological Corporation

Environment & AnimalsMassachusetts
$31.5M
B

Real Life Ministry

Arts, Culture & HumanitiesCalifornia
$31.4M
B

Preservation Society Of Newport County

Arts, Culture & HumanitiesRhode Island
$31.3M
B

Seattle Symphony Orchestra Inc

Arts, Culture & HumanitiesWashington
$31.3M
B

Broad Art Foundation

Arts, Culture & HumanitiesCalifornia
$31.1M
C

Climate Lead Inc

Environment & AnimalsCalifornia
$31.0M
B

Simon Wiesenthal Center Inc

Arts, Culture & HumanitiesCalifornia
$31.0M
B

Artsquest

Arts, Culture & HumanitiesPennsylvania
$30.9M
B

Conservation Society Of California

Environment & AnimalsCalifornia
$30.9M
B

Rare Inc

Environment & AnimalsVirginia
$30.9M
B

French American School Of New York Inc

Arts, Culture & HumanitiesNew York
$30.9M
B

Pittsburgh Symphony Inc

Arts, Culture & HumanitiesPennsylvania
$30.8M
C

Intrepid Museum Foundation Inc

Arts, Culture & HumanitiesNew York
$30.8M
B

Humane Society Of Missouri

Environment & AnimalsMissouri
$30.8M
B

Omaha Performing Arts Society

Arts, Culture & HumanitiesNebraska
$30.7M
B

Asian Art Museum Foundation Of San Francisco

Arts, Culture & HumanitiesCalifornia
$30.7M
C

Prx Incorporated

Arts, Culture & HumanitiesMassachusetts
$30.6M
B

The Living Desert

Environment & AnimalsCalifornia
$30.6M
B

Brooklyn Botanic Garden Corporation

Environment & AnimalsNew York
$30.5M
C

Menil Foundation Inc

Arts, Culture & HumanitiesTexas
$30.5M
C

Houston Grand Opera Association Inc

Arts, Culture & HumanitiesTexas
$30.4M
B

Tennessee Performing Arts Center Management Corporation

Arts, Culture & HumanitiesTennessee
$30.4M
A

Council On The Environment Inc

Environment & AnimalsNew York
$30.3M
B

West Michigan Horticultural Society Inc

Environment & AnimalsMichigan
$30.1M
B

Seattle Art Museum

Arts, Culture & HumanitiesWashington
$30.0M
C

Ohio Historical Society

Arts, Culture & HumanitiesOhio
$29.9M
B

Columbus Association For The Performing Arts Inc

Arts, Culture & HumanitiesOhio
$29.9M
C

Perot Museum Of Nature And Science

Arts, Culture & HumanitiesTexas
$29.9M
B

Iowa Natural Heritage Foundation

Environment & AnimalsIowa
$29.8M
C

Verra

Environment & AnimalsDistrict of Columbia
$29.8M
B

Dove Lewis Emergency Animal Hospital Inc

Environment & AnimalsOregon
$29.8M
B

Washington Drama Society Inc

Arts, Culture & HumanitiesDistrict of Columbia
$29.8M
C

Portland Art Museum

Arts, Culture & HumanitiesOregon
$29.7M
C

Animal Care And Control Of New York City Inc

Environment & AnimalsNew York
$29.3M
B

East Coast Zoological Society Of Florida Inc

Environment & AnimalsFlorida
$29.3M
B

Artspace Projects Inc

Arts, Culture & HumanitiesMinnesota
$29.1M
C

International Spy Museum

Arts, Culture & HumanitiesDistrict of Columbia
$29.0M
B

Humane World For Animals International

Environment & AnimalsDistrict of Columbia
$29.0M
B

Oregon Humane Society

Environment & AnimalsOregon
$28.9M
B

Overture Center Foundation Inc

Arts, Culture & HumanitiesWisconsin
$28.9M
A

Acapita Education Finance Corporation

EducationTexas
$28.9M
C

Armand Hammer Museum Of Art And Cultural Center Inc

Arts, Culture & HumanitiesCalifornia
$28.7M
C

River Partners

Environment & AnimalsCalifornia
$28.1M
B

Art Bridges Inc

Arts, Culture & HumanitiesArkansas
$28.0M
C

American Bird Conservancy

Environment & AnimalsVirginia
$27.9M
B

Municipal Theatre Association Of St Louis

Arts, Culture & HumanitiesMissouri
$27.8M
C

Dallas Arboretum & Botanical

Environment & AnimalsTexas
$27.8M
B

Dallas Museum Of Art

Arts, Culture & HumanitiesTexas
$27.8M
C

Broadway Dallas Inc

Arts, Culture & HumanitiesTexas
$27.8M
B

Michigan Humane Society

Environment & AnimalsMichigan
$27.8M
A

Old Globe Theatre

Arts, Culture & HumanitiesCalifornia
$27.7M
B

Zoological Society Of Pittsburgh

Environment & AnimalsPennsylvania
$27.6M
B

Austin Theatre Alliance

Arts, Culture & HumanitiesTexas
$27.5M
A

Jane Goodall Institute For Wildlife Research Education & Conservation

Environment & AnimalsDistrict of Columbia
$27.4M
A

Music Associates Of Aspen Inc

Arts, Culture & HumanitiesColorado
$27.3M
C

National Minority Supplier Development Council Inc

Arts, Culture & HumanitiesNew York
$27.3M
B

California Waterfowl Association

Environment & AnimalsCalifornia
$27.0M
A

Baltimore Symphony Orchestra Inc

Arts, Culture & HumanitiesMaryland
$26.9M
B

Cincinnati Museum Center

Arts, Culture & HumanitiesOhio
$26.9M
C

North Texas Public Broadcasting Inc

Arts, Culture & HumanitiesTexas
$26.9M
B

Chicago Theatre Group Inc

Arts, Culture & HumanitiesIllinois
$26.8M
B

Water Environment Federation

Environment & AnimalsVirginia
$26.8M
A

Desert Botanical Garden

Environment & AnimalsArizona
$26.7M
C

Historic Haymarket Milwaukee I Inc

Arts, Culture & HumanitiesWisconsin
$26.6M
B

Coastal Conservation Association

Environment & AnimalsTexas
$26.5M
B

Wvc

Environment & AnimalsNevada
$26.5M
A

Clasp

Environment & AnimalsDistrict of Columbia
$26.3M
A

Johnny Morris Wonders Of Wildlife Foundation

Arts, Culture & HumanitiesMissouri
$26.2M
C

Facing History & Ourselves Inc

Arts, Culture & HumanitiesMassachusetts
$26.2M
B

Nia Tero Foundation

Environment & AnimalsWashington
$26.2M
A

Fairmount Park Conservancy

Environment & AnimalsPennsylvania
$26.1M
B

Horace Bushnell Memorial Hall Corporation

Arts, Culture & HumanitiesConnecticut
$26.1M
B

American Humane Association

Environment & AnimalsDistrict of Columbia
$25.9M
A

Memphis Zoo Inc

Environment & AnimalsTennessee
$25.9M
B

Johnny Morris Ozarks Heritage Preserve

Environment & AnimalsMissouri
$25.7M
C

Pacific Northwest Ballet Association

Arts, Culture & HumanitiesWashington
$25.5M
B

Denver Dumb Friends League

Environment & AnimalsColorado
$25.2M
B

American Prairie Foundation

Environment & AnimalsMontana
$25.0M
B

Rivian Foundation

Environment & AnimalsCalifornia
$25.0M
B

World Wildlife Fund Canada

Environment & AnimalsUnknown
$25.0M
B

Florida Veterinary Medicine Faculty Association Inc

Environment & AnimalsFlorida
$24.9M
B

Emancipet

Environment & AnimalsTexas
$24.9M
B

Peninsula Open Space Trust

Environment & AnimalsCalifornia
$24.8M
C

Center For Energy And Environment

Environment & AnimalsMinnesota
$24.5M
B

American Journalism Project Inc

Arts, Culture & HumanitiesDistrict of Columbia
$24.4M
B

American Forests

Environment & AnimalsDistrict of Columbia
$24.3M
A

John Ball Zoo

Environment & AnimalsMichigan
$24.2M
B

Bethel Woods Center For The Arts Inc

Arts, Culture & HumanitiesNew York
$24.1M
B

Commemorative Air Force

Arts, Culture & HumanitiesTexas
$23.9M
A

Akron Zoological Park

Environment & AnimalsOhio
$23.9M
B

Vivian Beaumont Theater Inc

Arts, Culture & HumanitiesNew York
$23.7M
C

New York City Center Inc

Arts, Culture & HumanitiesNew York
$23.7M
B

Highlander Research & Education Center Inc

Environment & AnimalsTennessee
$23.7M
A

Providence Performing Arts Center

Arts, Culture & HumanitiesRhode Island
$23.4M
B

Grid Alternatives

Environment & AnimalsCalifornia
$23.1M
B

Cox Science Center And Aquarium Inc

Arts, Culture & HumanitiesFlorida
$23.1M
B

New Museum Of Contemporary Art

Arts, Culture & HumanitiesNew York
$22.8M
C

Groton Hill Music Inc

Arts, Culture & HumanitiesMassachusetts
$22.7M
C

Neighborhood Recycling Corporation

Environment & AnimalsMinnesota
$22.7M
A

San Francisco Zoological Society

Environment & AnimalsCalifornia
$22.5M
B

Forest Park Forever Inc

Environment & AnimalsMissouri
$22.5M
C

Missouri Historical Society Jefferson Memorial Building

Arts, Culture & HumanitiesMissouri
$22.4M
C

Greenacres Foundation

Environment & AnimalsOhio
$22.3M
C

Society For The Preservation Of New England Antiquities Inc

Arts, Culture & HumanitiesMassachusetts
$22.2M
B

Bonneville Environmental Foundation

Environment & AnimalsOregon
$22.1M
A

Greenpeace Fund Inc

Environment & AnimalsDistrict of Columbia
$22.0M
B

Nashville Symphony Association

Arts, Culture & HumanitiesTennessee
$22.0M
C

American Rivers Inc

Environment & AnimalsDistrict of Columbia
$21.8M
B

National Constitution Center

Arts, Culture & HumanitiesPennsylvania
$21.6M
C

The Maryland Zoological Society Inc

Environment & AnimalsMaryland
$21.6M
B

National Marine Sanctuary Foundation

Environment & AnimalsMaryland
$21.6M
B

Yellowstone Forever

Environment & AnimalsMontana
$21.3M
B

Jazz At Aspen Snowmass

Arts, Culture & HumanitiesColorado
$21.2M
A

Montgomery County Green Bank Corp

Environment & AnimalsMaryland
$20.8M
B

Point Reyes Bird Observatory

Environment & AnimalsCalifornia
$20.7M
A

Legacy Foundation

Arts, Culture & HumanitiesAlabama
$20.1M
C

National Association Of Conservation Districts Inc

Environment & AnimalsDistrict of Columbia
$20.0M
B

Peninsula Humane Society & Spca

Environment & AnimalsCalifornia
$19.8M
B

Radiant Life Ministries

Arts, Culture & HumanitiesIllinois
$19.7M
B

St Louis Art Museum Foundation

Arts, Culture & HumanitiesMissouri
$19.6M
B

Fish & Wildlife Foundation Of Florida Inc

Environment & AnimalsFlorida
$19.4M
B

Coastal Maine Botanical Gardens Inc

Environment & AnimalsMaine
$19.4M
C

Lifeline Animal Project Inc

Environment & AnimalsGeorgia
$19.2M
B

Western Reserve Land Conservancy

Environment & AnimalsOhio
$19.2M
A

New England Interstate Water Pollution Control Commission

Environment & AnimalsMassachusetts
$19.2M
A

Minnesota Land Trust

Environment & AnimalsMinnesota
$18.9M
B

Atlanta Historical Society Inc

Arts, Culture & HumanitiesGeorgia
$18.7M
C

Society Of The Four Arts

Arts, Culture & HumanitiesFlorida
$18.5M
B

The Humane League

Environment & AnimalsMaryland
$18.5M
B

Kvie Inc

Arts, Culture & HumanitiesCalifornia
$18.4M
B

Triangle Land Conservancy Inc

Environment & AnimalsNorth Carolina
$18.2M
B

Brandywine Conservancy & Museum Of Art

Arts, Culture & HumanitiesPennsylvania
$17.9M
C

Pbs Foundation

Arts, Culture & HumanitiesVirginia
$17.7M
B

Tate Americas Foundation

Arts, Culture & HumanitiesNew York
$17.5M
B

Kauffman Center For The Performing Arts

Arts, Culture & HumanitiesMissouri
$17.5M
C

Peconic Land Trust Incorporated

Environment & AnimalsNew York
$17.4M
C

Henry Francis Du Pont Winterthur Museum Inc

Arts, Culture & HumanitiesDelaware
$17.4M
C

Naples Botanical Garden Inc

Environment & AnimalsFlorida
$17.2M
B

Carbon Mapper Inc

Environment & AnimalsCalifornia
$17.0M
B

Western Rivers Conservancy

Environment & AnimalsOregon
$16.8M
B

Conservation Law Foundation Inc

Environment & AnimalsMassachusetts
$16.5M
A

Sonoma Land Trust

Environment & AnimalsCalifornia
$16.5M
B

Musical Instrument Museum

Arts, Culture & HumanitiesArizona
$15.4M
C

Worcester Art Museum

Arts, Culture & HumanitiesMassachusetts
$15.3M
C

Grand Traverse Regional Land Conservancy

Environment & AnimalsMichigan
$14.5M
C

Columbus Symphony Orchestra Inc

Arts, Culture & HumanitiesOhio
$14.0M
C

Childrens Museum Of Manhattan

Arts, Culture & HumanitiesNew York
$13.4M
B

Kimmel Center Inc

Arts, Culture & HumanitiesPennsylvania
$13.4M
C

Ocean Habitat And Wildlife Rescue Inc

Environment & AnimalsFlorida
$13.2M
B

School Of American Ballet Inc

Arts, Culture & HumanitiesNew York
$13.0M
C

National Tropical Botanical Garden

Environment & AnimalsHawaii
$12.9M
C

Indian Paintbrush Foundation

EducationDistrict of Columbia
$12.5M
B

Wildlands Conservancy

Environment & AnimalsCalifornia
$12.2M
C

Texas Agricultural Land Trust

Environment & AnimalsTexas
$12.1M
B

Southern Appalachian Highlands Conservancy

Environment & AnimalsNorth Carolina
$11.0M
C

Nelson Gallery Foundation

Arts, Culture & HumanitiesMissouri
$10.4M
C

Ubongo International

Arts, Culture & HumanitiesTexas
$10.3M
A

Ncinnovation Inc

EducationNorth Carolina
$10.3M
B

Shelburne Farms

Environment & AnimalsVermont
$10.0M
C

How to Compare Within a Revenue Tier

A revenue tier is the most generous filter on the site — it groups together very different cause areas. Two organizations in the same tier might be a hospital system and a humanitarian aid charity. Both report on the same Form 990 schema, but their cost structures, revenue mixes, and reserve practices differ enough that direct comparisons need additional context. Filtering by NTEE category before comparing within a revenue tier gives the cleanest read.

The NonprofitTruth Efficiency Score is a 0–100 composite that summarizes four signals from the Form 990: program-spending ratio (50% of the score), revenue-growth consistency over multiple years (20%), months of fund reserves on the balance sheet (20%), and CEO compensation as a share of revenue (10%). The grade A–F mapping is purely descriptive — it summarizes the financial structure that the 990 reveals, not the social impact, program quality, or outcomes of the work the organization does. Donors evaluating impact should pair these financial signals with program-level evaluations from sources like Charity Navigator, GiveWell, or the organization's own audited reports.

Source Data and Verification

All financials on this page come from each organization's IRS Form 990 — the federal information return that 501(c)(3) public charities, private foundations, and most other tax-exempt organizations must file annually. The Form 990 is a public document. We ingest it primarily through the ProPublica Nonprofit Explorer feed, which mirrors the IRS Tax-Exempt Organization Search dataset. Original e-file XML and PDF copies of any return can be looked up directly at the IRS, ProPublica, or the Candid (formerly GuideStar) directory.

Each organization in this revenue band has its underlying Form 990 available free of charge from the IRS Tax Exempt Organization Search, the ProPublica Nonprofit Explorer, or the Candid (GuideStar) directory.

Frequently Asked Questions

What counts as a medium nonprofits?

Organizations with $10 million to $100 million in annual revenue. The threshold uses total revenue from the most recent Form 990 we have processed for each organization, so an organization that crosses the threshold mid-cycle may shift between revenue tiers as new filings post.

Why segment nonprofits by revenue size?

Cost structure varies dramatically by scale. A $5M organization with a $200K CEO has a 4% comp-to-revenue ratio; a $500M organization with a $2M CEO has a 0.4% ratio. The same Efficiency Score signals different things at different scales, so within-tier comparisons are usually more useful than cross-tier ones.

What is the Efficiency Score for medium nonprofits?

The average Efficiency Score across the 459 medium nonprofits on this page is 70/100. The composite score weights program-spending ratio (50%), revenue-growth consistency (20%), reserves (20%), and CEO-comp ratio (10%) — all drawn from the most recent Form 990.

Are mega and large nonprofits less efficient than smaller ones?

Not categorically. Larger organizations often post higher absolute CEO compensation but lower comp-to-revenue ratios. They tend to have stronger reserves and steadier revenue growth, which the Efficiency Score rewards. Smaller organizations sometimes post higher program ratios because they have less administrative overhead, but thinner reserves and more revenue volatility can offset that.

Where can I see the original Form 990 for these charities?

Click any organization’s card to open its profile. Each profile cites the source filing year and links onward to the original 990 on the IRS Tax Exempt Organization Search and on ProPublica Nonprofit Explorer.

Medium Nonprofits on NonprofitTruth includes 459 organizations with combined revenue of $20.4B, drawn from IRS Form 990 filings. The average Efficiency Score across the band is 70/100.