| THE NEW YORK PUBLIC LIBRARY ASTOR LENOX AND TILDEN FOUNDATIONS | $693,176,891 | B70 | published | shelter: homeless | New York, NY | 2024 |
| OCLC INC | $273,340,036 | B70 | published | science: research education | Dublin, OH | 2024 |
| QUEENS BOROUGH PUBLIC LIBRARY | $171,715,860 | B70 | published | | Jamaica, NY | 2024 |
| LYRASIS | $135,959,110 | B70 | published | science: research education | Alpharetta, GA | 2024 |
| THE GEORGE W BUSH FOUNDATION | $55,960,197 | B70 | published | women: issues | Dallas, TX | 2024 |
| PIERPONT MORGAN LIBRARY | $55,087,598 | B70 | published | | New York, NY | 2024 |
| PERMANENT ARCHIVE FUND | $50,978,498 | B70 | published | | Biddeford, ME | 2024 |
| PIERCE COUNTY RURAL LIBRARY DISTRICT | $48,234,968 | B70 | published | | Tacoma, WA | 2024 |
| CARNEGIE LIBRARY OF PITTSBURGH | $48,193,926 | B70 | published | science: research education | Pittsburgh, PA | 2025 |
| PRINCE GEORGES COUNTY MEMORIAL LIBRARY SYSTEM | $41,410,540 | B70 | published | science: research education | Largo, MD | 2024 |
| PUBLIC LIBRARY ASSOCIATION OF ANNAPOLIS AND A A CO INC | $38,621,901 | B70 | inferred 0.95 | | Annapolis, MD | 2024 |
| RICHLAND COUNTY PUBLIC LIBRARY | $37,444,127 | B70 | published | | Columbia, SC | 2024 |
| THE TRUSTEES OF THE NEW YORK SOCIETY LIBRARY | $31,414,155 | B70 | inferred 0.90 | women: issues | New York, NY | 2024 |
| ROCHESTER PUBLIC LIBRARY | $27,969,883 | B70 | published | | Rochester, NY | 2024 |
| REUBEN MCMILLAN FREE LIBRARY ASSOCIATION | $23,234,763 | B70 | published | space: outer | Youngstown, OH | 2024 |
| ANN ARBOR DISTRICT LIBRARY | $22,715,054 | B70 | published | | Ann Arbor, MI | 2024 |
| SUFFOLK COOPERATIVE LIBRARY SYSTEM | $20,148,167 | B70 | published | | Bellport, NY | 2025 |
| LIVE OAK PUBLIC LIBRARIES | $18,589,640 | B70 | published | | Savannah, GA | 2024 |
| SMITHTOWN LIBRARY | $18,108,002 | B70 | inferred 0.95 | | Nesconset, NY | 2025 |
| ROBERT W WOODRUFF LIBRARY OF THE ATLANTA UNIVERSITY CENTER INC | $15,722,109 | B70 | published | | Atlanta, GA | 2024 |
| ALLEGHENY COUNTY LIBRARY ASSOC | $15,610,287 | B70 | published | science: research education | Pittsburgh, PA | 2025 |
| PIONEER LIBRARY SYSTEM | $15,507,691 | B70 | published | | Norman, OK | 2014 |
| MASSACHUSETTS LIBRARY SYSTEM INC | $15,334,761 | B70 | published | | Marlborough, MA | 2024 |
| LAKE COUNTY PUBLIC LIBRARY | $15,260,800 | B70 | published | | Merrillville, IN | 2024 |
| LINDA HALL LIBRARY TRUST | $14,441,154 | B70 | inferred 0.97 | science: research education | Kansas City, MO | 2024 |
| GREENE COUNTY PUBLIC LIBRARY | $14,365,782 | B70 | inferred 0.95 | | Xenia, OH | 2024 |
| PUEBLO CITY-COUNTY LIBRARY DISTRICT | $14,174,700 | B70 | published | | Pueblo, CO | 2021 |
| PUBLISHERS INTERNATIONAL LINKING ASSOCIATION INC | $13,946,312 | B70 | published | science: research education | Lynnfield, MA | 2024 |
| DOLLY PARTONS IMAGINATION LIBRARY OF OHIO | $13,887,661 | B70 | published | | Columbus, OH | 2025 |
| CK12 FOUNDATION | $13,838,472 | B70 | published | | San Jose, CA | 2024 |
| BUFFALO & ERIE COUNTY PUBLIC LIBRARY | $13,768,758 | B70 | published | | Buffalo, NY | 2024 |
| AMIGOS LIBRARY SERVICES | $13,236,096 | B70 | published | | Addison, TX | 2024 |
| WISCONSIN LIBRARY SERVICES | $12,582,429 | B70 | inferred 0.85 | | Madison, WI | 2024 |
| HOUSTON ACADEMY OF MEDICINE | $11,441,338 | B70 | published | science: research education | Houston, TX | 2024 |
| FERGUSON LIBRARY | $11,348,380 | B70 | published | | Stamford, CT | 2024 |
| BUCKS COUNTY FREE LIBRARY | $11,258,320 | B70 | inferred 0.90 | | Doylestown, PA | 2025 |
| PENNSYLVANIA ACADEMIC LIBRARY CONSORTIUM INC | $11,232,205 | B70 | published | | Drexel Hill, PA | 2024 |
| NASSAU LIBRARY SYSTEM | $10,663,450 | B70 | published | | Uniondale, NY | 2025 |
| COMMUNITY INFORMATION TRUST | $10,591,933 | B70 | published | | Omaha, NE | 2024 |
| SPRINGFIELD MUSEUMS CORPORATION | $10,425,508 | B70 | published | space: outer | Springfield, MA | 2024 |
| MOBIUS | $10,376,430 | B70 | published | science: research education | Columbia, MO | 2024 |
| NEWBERRY LIBRARY | $9,913,275 | B70 | published | | Chicago, IL | 2024 |
| PROPRIETORS OF THE BOSTON ATHENAEUM | $9,747,313 | B70 | published | | Boston, MA | 2024 |
| STAR LIBRARY FOUNDATION | $9,429,231 | B70 | published | | Biddeford, ME | 2024 |
| DAUPHIN COUNTY LIBRARY SYSTEM | $9,390,259 | B70 | published | science: research education | Harrisburg, PA | 2024 |
| WASHINGTON COUNTY FREE LIBRARY | $8,862,698 | B70 | published | | Hagerstown, MD | 2024 |
| CENTER FOR RESEARCH LIBRARIES | $8,848,692 | B70 | inferred 0.90 | science: research education | Chicago, IL | 2024 |
| AMERICAN THEOLOGICAL LIBRARY ASSOC | $8,769,919 | B70 | inferred 0.75 | | Chicago, IL | 2024 |
| PROVIDENCE PUBLIC LIBRARY | $8,355,632 | B70 | published | space: outer | Providence, RI | 2024 |
| JOHN FITZGERALD KENNEDY LIBRARY FOUNDATION INCORPORATED | $7,830,685 | B70 | published | violence: community | Boston, MA | 2025 |
| AMERICAN ANTIQUARIAN SOCIETY | $7,798,791 | B70 | published | | Worcester, MA | 2024 |
| AUXILIARY SERVICES SAN MATEO COUNTY | $7,643,946 | B70 | inferred 0.50 | | San Mateo, CA | 2012 |
| FRIENDS OF THE ELISHA D SMITH PUBLIC LIBRARY INC | $7,613,454 | B70 | published | | Menasha, WI | 2024 |
| BOSTON PUBLIC LIBRARY FUND INC | $7,541,977 | B70 | published | science: research education | Boston, MA | 2024 |
| MONTGOMERY COUNTY NORRISTOWN PUBLIC LIBRARY | $7,410,338 | B70 | published | | Norristown, PA | 2025 |
| WESTCHESTER LIBRARY SYSTEM | $7,272,252 | B70 | inferred 0.85 | | Elmsford, NY | 2025 |
| CASS DISTRICT LIBRARY | $7,070,817 | B70 | published | | Cassopolis, MI | 2024 |
| ROSENBERG LIBRARY ASSOCIATION | $7,041,753 | B70 | published | | Galveston, TX | 2024 |
| PROPRIETORS OF THE SOCIAL LAW LIBRARY | $7,012,857 | B70 | inferred 0.90 | | Boston, MA | 2024 |
| KENNETT LIBRARY | $6,767,254 | B70 | inferred 0.95 | | Kennett Sq, PA | 2024 |
| COMMUNITY LIBRARIES OF PROVIDENCE | $6,490,384 | B70 | published | | Providence, RI | 2024 |
| COLORADO LIBRARY CONSORTIUM | $6,416,169 | B70 | inferred 0.80 | | Centennial, CO | 2024 |
| NEW CITY LIBRARY | $6,356,291 | B70 | inferred 0.95 | | New City, NY | 2024 |
| OHIONET | $6,294,693 | B70 | published | | Westerville, OH | 2024 |
| ROGERS MEMORIAL LIBRARY CO | $6,242,350 | B70 | published | | Southampton, NY | 2025 |
| WASHINGTON RESEARCH LIBRARY CONSORTIUM | $6,163,145 | B70 | published | | Uppr Marlboro, MD | 2024 |
| DETROIT SCIENCE CENTER | $6,156,382 | B70 | inferred 0.50 | space: outer | Detroit, MI | 2010 |
| EMMA S CLARK MEMORIAL LIBRARY ASSOCIATION | $6,128,574 | B70 | published | | Setauket, NY | 2025 |
| GROLIER CLUB OF THE CITY OF NEW YORK | $6,062,019 | B70 | inferred 0.90 | | New York, NY | 2024 |
| TEXAS RANGERS BASEBALL FOUNDATION | $5,960,341 | B70 | published | | Arlington, TX | 2024 |
| LOUISVILLE FREE PUBLIC LIBRARY FOUNDATION INC | $5,930,741 | B70 | published | | Louisville, KY | 2024 |
| CABELL COUNTY PUBLIC LIBRARY | $5,635,176 | B70 | published | | Huntington, WV | 2024 |
| RESOURCES FOR INDEPENDENT LIVING INC | $5,440,646 | B70 | published | | Burlington, NJ | 2023 |
| LIBRARY SYSTEM OF LANCASTER COUNTY | $5,410,069 | B70 | inferred 0.90 | | Lancaster, PA | 2024 |
| THEODORE F JENKINS MEMORIAL LAW LIBRARY COMPANY | $5,371,568 | B70 | published | domestic violence | Philadelphia, PA | 2024 |
| LOYOLA-NOTRE DAME LIBRARY INC | $5,099,440 | B70 | published | | Baltimore, MD | 2024 |
| NEW CANAAN LIBRARY INC | $5,035,311 | B70 | published | space: outer | New Canaan, CT | 2024 |
| CHEMUNG COUNTY LIBRARY DISTRICT | $4,948,310 | B70 | published | | Elmira, NY | 2024 |
| WINTER PARK LIBRARY ASSN | $4,889,108 | B70 | published | science: research education | Winter Park, FL | 2024 |
| HALL COUNTY LIBRARY SYSTEM | $4,880,368 | B70 | published | | Gainesville, GA | 2024 |
| MOUNT VERNON PUBLIC LIBRARY | $4,839,265 | B70 | published | | Mount Vernon, NY | 2023 |
| STRATFORD LIBRARY ASSOCIATION | $4,839,121 | B70 | inferred 0.90 | | Stratford, CT | 2024 |
| EAST HAMPTON LIBRARY | $4,834,537 | B70 | inferred 0.90 | | East Hampton, NY | 2025 |
| THE NATIONAL PRESS CLUB JOURNALISM INSTITUTE INC | $4,743,040 | B70 | published | | Washington, DC | 2024 |
| NELLCO LAW LIBRARY CONSORTIUM INC | $4,720,235 | B70 | inferred 0.80 | | Albany, NY | 2024 |
| FINGER LAKES COMMUNITY COLLEGE ASSOCIATION INC | $4,665,299 | B70 | inferred 0.50 | | Canandaigua, NY | 2024 |
| DIGITAL PUBLIC LIBRARY OF AMERICA | $4,640,712 | B70 | inferred 0.80 | | Boston, MA | 2024 |
| CAMPBELL COUNTY PUBLIC LIBRARY DISTRICT BOARD OF TRUSTEES INCORPO | $4,577,277 | B70 | published | | Cold Spring, KY | 2010 |
| NATIONAL SPORTING LIBRARY INCORPORATED | $4,535,960 | B70 | published | | Middleburg, VA | 2025 |
| MONROE COUNTY PUBLIC LIBRARY | $4,514,738 | B70 | inferred 0.95 | | Stroudsburg, PA | 2024 |
| CAMBRIDGE ASSESSMENT INC | $4,475,469 | B70 | inferred 0.50 | | New York, NY | 2022 |
| FRIENDS OF THE ST PAUL PUBLIC LIBRARY | $4,428,250 | B70 | inferred 0.90 | science: research education | Saint Paul, MN | 2025 |
| LETTERFORM ARCHIVE | $4,381,456 | B70 | published | | San Francisco, CA | 2024 |
| SABRE FOUNDATION INC | $4,323,339 | B70 | inferred 0.60 | | Newton, MA | 2012 |
| NANTUCKET ATHENEUM | $4,308,812 | B70 | inferred 0.95 | | Nantucket, MA | 2024 |
| JONES LIBRARY INC | $4,297,408 | B70 | published | | Amherst, MA | 2024 |
| HOSTING SOLUTIONS AND LIBRARY CONSULTING | $4,280,912 | B70 | published | science: research education | Philadelphia, PA | 2024 |
| LIBRARY ASSOCIATION OF SANDUSKY OHIO | $4,243,371 | B70 | published | | Sandusky, OH | 2024 |
| LONG NOW FOUNDATION | $4,223,399 | B70 | published | space: outer | San Francisco, CA | 2024 |
| CALIFORNIA LIBRARY ASSOCIATION | $4,200,300 | B70 | inferred 0.70 | | Pasadena, CA | 2024 |