| AMGEN SAFETY NET FOUNDATION | $2,729,907,609 | G51 | published | | Thousand Oaks, CA | 2024 |
| ARTHRITIS FOUNDATION INC | $70,127,435 | G51 | published | science: research education | Atlanta, GA | 2025 |
| CHILDHOOD ARTHRITIS & RHEUMATOLOGY RESEARCH ALLIANCE | $9,591,717 | G51 | published | science: research education | Washington, DC | 2024 |
| Arthritis Foundation Great West Region Inc | $7,193,244 | G51 | inferred 0.70 | science: research education | Denver, CO | 2014 |
| ARTHRITIS FOUNDATION SOUTH CENTRAL | $3,275,291 | G51 | inferred 0.85 | | Atlanta, GA | 2015 |
| NORTHWEST AUTISM CENTER | $3,213,811 | G51 | published | | Spokane, WA | 2024 |
| THE KNEE SOCIETY INC | $2,776,072 | G51 | inferred 0.60 | science: research education | Schaumburg, IL | 2025 |
| ARTHRITIS FOUNDATION NORTH CENTRAL CHAPTER | $2,319,583 | G51 | inferred 0.80 | science: research education | St Paul, MN | 2010 |
| Arthritis Foundation Inc | $670,837 | G51 | inferred 0.80 | | San Francisco, CA | 2012 |
| OPERATION WALK CHICAGO | $400,624 | G51 | published | | Buffalo Grove, IL | 2025 |
| RHEUMATOLOGY ALLIANCE OF LOUSIANA INC | $335,375 | G51 | published | | Schaumburg, IL | 2025 |
| RHEUMATOID ARTHRITIS FOUNDATION HELP FIGHT RA INC | $191,852 | G51 | published | | Orlando, FL | 2024 |
| MARYLAND SOCIETY FOR THE RHEUMATIC DISEASES INC | $170,804 | G51 | published | | Harrisburg, PA | 2024 |
| MARGARET HARVEY SCHERING TRUST FOR ARTHRITIS RESEARCH | $144,302 | G51 | inferred 0.60 | | Edina, MN | 2024 |
| ARKANSAS STATE RHEUMATOLOGY ASSOCIATION INC | $138,350 | G51 | published | | Schaumburg, IL | 2025 |
| EMILYS PINK TEAM INC | $133,776 | G51 | published | | Mason, NH | 2025 |
| NORTHWEST ARTHRITIS INSTITUTE | $105,483 | G51 | published | science: research education | Seattle, WA | 2024 |
| ARTHRITIS FOUNDATION INC NORTHEASTERN NY CHAPTER | $77,879 | G51 | inferred 0.70 | | Albany, NY | 2009 |
| SPONDYLOARTHRITIS RESEARCH AND TREATMENT NETWORK | $62,180 | G51 | published | launch: launch | Portland, OR | 2025 |
| CANCER RESEARCH AND TREATMENT INSTITUTE | $61,882 | G51 | published | | Glendale, AZ | 2023 |
| ALS ASSOCIATION UPSTATE NEW YORK | $58,278 | G51 | inferred 0.80 | | Liverpool, NY | 2023 |
| RHEUMATOID ARTHRITIS PROJECT | $53,632 | G51 | published | | Spokane, WA | 2024 |
| JEFFREY GOTTFURCHT CHILDREN'S | $17,657 | G51 | inferred 0.50 | | Beverly Hills, CA | 2015 |
| AMERICAN SOCIETY OF CLINICAL | $14,000 | G51 | inferred 0.70 | | Smithtown, NY | 2020 |
| RHEUMATOLOGY FOR ALL INC | $12,042 | G51 | published | | Philadelphia, PA | 2024 |
| NATIONAL MULTIPLE SCLEROSIS SOCIETY | $0 | G51 | inferred 0.80 | science: research education | Chicago, IL | 2016 |
| FRANCES M HAMBURGER PHD INSTITUTE FOR COMMUNITY RHEUMATOLO | $0 | G51 | published | | Los Angeles, CA | 2024 |
| NEW YORK SPORTS MEDICINE ARTHRITIS RESEARCH AND EDUCATION FOUNDATION | $0 | G51 | published | | New York, NY | 2025 |
| FROM THE HEART SPINAL CORD INJURY | - | G51 | inferred 0.40 | | Hanson, MA | |
| GEMMA-JOHN MULTIPLE SCLEROSIS | - | G51 | inferred 0.40 | | Washington, DC | |
| QUEENS LUPUS ERYTHEMATUSUS | - | G51 | inferred 0.60 | | Fresh Meadows, NY | |
| ARTHRITIS INFORMATION CENTER | - | G51 | inferred 0.70 | | Hewlett, NY | |
| CHILDEN & ADULT ARTHRITIS & | - | G51 | inferred 0.80 | | Montgomery, AL | |
| JUVENILE ARTHRITIS FUND FOR | - | G51 | inferred 0.80 | | Dallas, TX | |
| CURE ARTHRITIS NOW | - | G51 | inferred 0.80 | | Sacramento, CA | |
| NORTH CAROLINA OSTEOPOROSIS FOUNDATION | - | G51 | inferred 0.60 | | Oak Island, NC | |
| DIANE LAMOTTE ALS FOUNDATION CORP | - | G51 | inferred 0.40 | | Mililani, HI | |
| RHEUMATOLOGY SOCIETY OF DELAWARE | - | G51 | inferred 0.50 | | Lewes, DE | |
| ARTHRITIS FOUNDATION INC | - | G51 | inferred 0.90 | | Harrisburg, PA | |
| SANGABRIEL VALLEY ARTHRITIS | - | G51 | inferred 0.80 | | Arcadia, CA | |
| ARTHRITIS SOCIETY OF ST JOSEPH COUNTY INC | - | G51 | inferred 0.85 | | Granger, IN | |
| SCLERODERMA FOUNDATION WESTERN | - | G51 | inferred 0.45 | | Pittsburgh, PA | |
| ARTHRITIS INTROSPECTIVE | - | G51 | inferred 0.70 | | Avoca, PA | |
| RHEUMATOLOGY ARTHRITIS CENTER INC | - | G51 | inferred 0.80 | | Peachtree City, GA | |
| WESTSIDE ARTHRITIS & METABOLISM | - | G51 | inferred 0.60 | | Santa Monica, CA | |
| OSTEOPOROSIS PREVENTION FOUNDATION | - | G51 | inferred 0.55 | | Rllng Hls Est, CA | |
| ARTHRITIC HIP KNEE & SHOULDER | - | G51 | inferred 0.60 | | San Diego, CA | |
| ARTHRITISINSIGHT COM INC | - | G51 | inferred 0.55 | | Indianapolis, IN | |
| ADVOCATES FOR FIBROMYALGIA FUNDING TREATMENTS EDUCATION AND RESEARCH | - | G51 | inferred 0.60 | | Libertyville, IL | |
| DANE COUNTY EASTER SEAL SOCIETY FOR | - | G51 | inferred 0.60 | | Madison, WI | |
| MS WHEELCHAIR IOWA INC | - | G51 | inferred 0.70 | | Des Moines, IA | |
| SKATE SUPPORT | - | G51 | published | | Chula Vista, CA | |
| JANINE SARCOIDOSIS OUTREACH FOUNDATION JSOF | - | G51 | published | | Alief, TX | |
| BLACK HILLS ARTHRITIS ASSOCIATION | - | G51 | inferred 0.80 | | Rapid City, SD | |
| HIT EM HARD FOR MS- THE CLIVE BURR FOUNDATION | - | G51 | inferred 0.40 | | Seymour, CT | |
| STRUGGLE IS OVER LUPUS FOUNDATION | - | G51 | inferred 0.45 | | Jacksonville, FL | |
| PROJECT WALK PARALYSIS RECOVERY FOUNDATION | - | G51 | inferred 0.40 | | Carlsbad, CA | |
| SISTER 2 SISTER LUPUS FOUNDATION | - | G51 | inferred 0.45 | | Jackson, MS | |
| SUPPORT AND AWARENESS FOR RHEUMATOID ARTHRITIS | - | G51 | inferred 0.80 | | Hattiesburg, MS | |
| LOWCOUNTRY ARTHRITIS FOUNDATION | - | G51 | inferred 0.80 | | Mt Pleasant, SC | |
| DEAD SEA PSORIASIS & ARTHRITIS TREATMENT FOUNDATION OF AMERICA | - | G51 | inferred 0.60 | | Wichita, KS | |
| AMERICAN DIABETES ASSOCIATION | - | G51 | inferred 0.50 | | Wilmington, DE | |
| NORTHWEST ARTHRITIS FOUNDATION | - | G51 | inferred 0.85 | | Seattle, WA | |
| ARTHRITIS ASSN FOR RESEARCH AND | - | G51 | inferred 0.80 | | Dover, DE | |
| LUPUS SELF-HELP INCORPORATED | - | G51 | inferred 0.50 | | Washington, DC | |
| ARTHRITIS RESEARCH INSTUTUTE INC | - | G51 | inferred 0.80 | | Laytonsville, MD | |
| BRISTOL EVENING LIONS SIGHT AND HEARING FUND | - | G51 | inferred 0.50 | | Bristol, VA | |
| NATIONAL RHEUMATOID ARTHRITIS FOUNDATION INC | - | G51 | published | | Mechanicsvlle, VA | |
| SCOLIOSIS ASSOCIATION INC | - | G51 | inferred 0.50 | | Boca Raton, FL | |
| BLUERIDGE LUPUS CHAPTER INC | - | G51 | inferred 0.55 | | Hickory, NC | |
| MOUNTAIN EMPIRE ARTHRITIS | - | G51 | inferred 0.75 | | Greeneville, TN | |
| ARTHRITIS ASSOCIATION OF INDIAN | - | G51 | inferred 0.80 | | Vero Beach, FL | |
| THE LUPUS FOUNDATION OF AMERICA INC | - | G51 | inferred 0.55 | | Daytona Beach, FL | |
| WINTER HAVEN LIONS EYESIGHT CONSERVATION FOUNDATION INC | - | G51 | inferred 0.60 | | Winter Haven, FL | |
| FIBROMYALGIA ASSISTANCE FOUNDATION | - | G51 | inferred 0.60 | | Monument, CO | |
| ARTHRITIS CHILDREN TRIUMPH INC | - | G51 | inferred 0.80 | | Tulsa, OK | |
| ARTHRITIS ENDOWMENT FUND INC | - | G51 | inferred 0.70 | | San Antonio, TX | |
| TUCSON ARTHRITIS SUPPORT LEAGUE | - | G51 | inferred 0.70 | | Tucson, AZ | |
| SAVE OUR ERS EDUCATION AND RESEARCH | - | G51 | inferred 0.40 | | Houston, TX | |
| ARTHRITIS ASSOCIATION OF LOUISIANA | - | G51 | inferred 0.85 | | Baton Rouge, LA | |
| BLINDED VETERANS ASSOCIATION | - | G51 | inferred 0.35 | | Nashua, NH | |
| HELENA ARTHRITIS SELF-HELP GROUP | - | G51 | inferred 0.85 | | Helena, MT | |
| AMELIA FORDYCE LEUKEMIA FUND | - | G51 | inferred 0.30 | | Norwalk, CT | |
| SICKLE CELL ASSOCIATION OF HAMPTON ROADS INC | - | G51 | inferred 0.45 | | Hampton, VA | |
| WALK AS ONE INC | - | G51 | published | | Augusta, ME | |
| ARTHRITIS ALLIANCE OF PENNSYLVANIA | - | G51 | published | | Enola, PA | |
| IDAHO ARTHRITIS WALK | - | G51 | published | | Meridian, ID | |
| INTERNATIONAL ARTHRITIS FOUNDATION OF AMERICA INC | - | G51 | inferred 0.85 | | New York, NY | |
| ALBANY COUNTY ARTHRITIS AGENCY | - | G51 | inferred 0.80 | | Laramie, WY | |
| HEALTHY SPINES FOUNDATION INC | - | G51 | inferred 0.80 | | Plymouth, NE | |
| THE INTERNATIONAL CARTILAGE JOINT PRESERVATION FOUNDATION INC | - | G51 | published | | New York, NY | |
| ARTHRITIS SERVICES GROUP INC | - | G51 | inferred 0.85 | | Sierra Vista, AZ | |
| SOCIETY FOR ADVANCEMENT IN NEUROLOGIC ETIOLOGY AND REMEDIATIO | - | G51 | inferred 0.45 | | Salisbury, MA | |
| KIDNEY DISEASE SUPPORT GROUP FOR AFRICAN AMERICAN MEN INC | - | G51 | inferred 0.35 | | Harrisburg, PA | |
| TEAMFRANKIE LUPUS FOUNDATION | - | G51 | inferred 0.30 | | Stockton, CA | |
| IMMUNE BOOST CAPITAL | - | G51 | published | | Irvine, CA | |
| THE EARLENE PHILBERT LUPUS | - | G51 | inferred 0.35 | | Van Nuys, CA | |
| MEMBERS OF ARTHRITIS FOR SELF HELP | - | G51 | inferred 0.80 | | San Pedro, CA | |
| FIBROMYALGIA TREATMENT CENTER | - | G51 | inferred 0.50 | | Santa Monica, CA | |
| FUND FOR ARTHITIS AND INFLAMMATORY | - | G51 | inferred 0.80 | | Canoga Park, CA | |