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The donor list is updated approximately quarterly.
| A. Straub | Aaron English | Abrantes Araujo Silva Filho |
| Adeline J Wilcox | Agustin Martin Domingo | Alan D. Salewski |
| Alan K. Fox | Alan Wetmore | Alessandro Falaschi |
| Alexander McKenzie (in memory of David Walden) | Allan G Weber | Amaresh R Joshi |
| AmazonSmile | American Mathematical Society | American Online Giving Foundation |
| Anders Källström | Andrew J. Caird | Andrew Rockhill |
| Andy Kopra | Angus Hudson | Anna Pechenina |
| Anonymous | Anthony Panos | Anup Jaltade |
| Arne Strøm | Arthur M Reed | August Fink |
| Bassel Khoury | Benedict G. Archer | Benevity Community Impact Fund |
| Benjamin Janes | Bernhard Simader | Boguslaw Czerniakowski |
| Boris A Veytsman | Brian Dunn | Brian P. Flaherty |
| Cameron H G Wright | Carl Taswell | Charles-Michel Marle |
| Chiraag Nataraj | Christian Heinrich | Christina Anna Thiele |
| Christopher Eliot | Christopher Inacio | Christopher P Silva |
| Colin Day | Conny Andersson | CV Radhakrishnan |
| D Scott Campbell | D Stroock | Daniel H Bauer |
| Daniel Walden (in memory of David Walden) | Daniel Wyckoff | Darin England |
| David A Schlenker | David Burow | David Carter |
| David Casperson | David Dixon | David G Green |
| David M Bowen | David P Goldenberg | David Pardue |
| David Patricio | David Phillips | David Tellet |
| David Topp | De-Wei Yin | Denis Chéniot |
| Dennis Claudio | Dennis Mueller | Donald Patterson |
| Duilio De Carlo | Edmund Crouch | Edward Ajhar |
| Edward Dorrington | Emery Snyder | Emil Volcheck |
| Eric N. Brown | Fidelity Charitable | Francois Faure |
| Francoise Mulhauser | Fred Schleifer | Gabriel Fernandez |
| Geoff Oakley | Geoff Ward | Give Lively |
| Google LLC | Guillaume Belanger | Gunner Gewiss |
| Hanjo Iwanowitsch | Hans-Joerg Timme | Hans-Walter Lorenz |
| Harald Hanche-Olsen | Harry Shapiro | Heinrich Stamerjohanns |
| Henrique Miranda | Herbert Schulz | Hiroaki Kuromiya |
| Hubert Hickman | Ian M Davies | Isaac Sanchez Barrera |
| Itay Furman | J. Loria | Jake Warde |
| James P. Summe | James Scully | Jean Pierre Lardant |
| Jeffrey L Copeland | Jennifer Claudio | Jeremiah Thomas |
| Jim Dolmas | Jim Hefferon | Jochen Guenther |
| Joe Goddard | John C Peterson | John D Hobby |
| John Eddie Kerr | John H Boyd III | John H Lienhard |
| Jonathan Grolleau | Jonathan Snodgrass | Jorge Reyes-Spindola |
| José Luis Olivares | Jose M Andion | Joseph C Várilly |
| Joseph M Ostroy | Joshua Smith | Joshua Tripp |
| Juan L. Varona | Julian Gilbey | Justin C. Walker |
| Justin W Elam | Kathleen Kish (in memory of David Walden) | Kenneth L Marr |
| Kim Nesbitt | Klaus Sutner | Koyo Masore |
| KV Rajeesh | Kyle McAbee | Lale Lovell |
| Lance D Linton | Lee A Shombert | Live United |
| Lloyd Prentice | Loyd Fueston | Lucinda Ebert |
| M A Tieslau | Mahito Nomura | Manuel Castro Avila |
| Marcel Herbst | Mark Madsen | Mark Shure |
| Martin Ruckert | Mary Collins (in memory of David Walden) | Matthew MacLeod |
| Matthew Skala | Mauclair | Merwyn Friedman |
| Micha Hofri | Michael Barr | Michael D Sofka |
| Michael Lewelling | Michael Sharpe | Michael Sokoloff |
| Mooncard | Murray Eisenberg | Naveen Kumar |
| Ned W. Hummel | Nicholas Cole | Oleksandr Baranovskyi |
| Overleaf | P H J Vosbeek | Patrick Gundlach |
| Patrick Weyer | Paul N Danese | Paul R Genssler |
| Paula Gudder | PayPal Giving Fund | Pedro Quaresma Almeida |
| Peter F M Teunis | Peter Flom | Peter Flynn |
| Peter Galko | Peter Pagin | Peter R Wilson |
| Peter Renz | Peter Schmitt | Peter Weinberger |
| Philippe Baril Lecavalier | Pierre V Bulens | Pinaki S Ray |
| Piotr Kielanowski | Rajiv Monsurate | Rakuten Marketing |
| Ramón Casares | Ravi Parimi | Richard Brandt |
| Richard David Sherman | Richard Koch | Richard Pace |
| Richard T Bumby | Rik Kabel | River Valley Technologies |
| Robert D. Edwards | Robert Jones | Robert Love |
| Robert Paul Corbett | Robert Townsend (in memory of David Walden) | Roger A Hess |
| Roger Coe Eddy | Roger Wallen | Romano Giannetti |
| Ron Wickersham | Ryan Stansifer | Schmittbuhl |
| Sean K. Lehman | Sergio Mancioppi | Sharon Kernan |
| Stephen Michael Kellat | Stephen Moye | Stephen Schwarm |
| Steve Grathwohl | Steve Nicholson | Steven R Brenton |
| Susan Cowles (in memory of David Walden) | Susan Huot | Teresita Guzman |
| Therese Bonin | Thomas Bietenhader | Thomas C. Stringfellow |
| Thomas E Price | Thomas Jacobs | Tim Stone |
| Tod Luginbuhl | Tom Borawski | Tom Boye |
| Tomas Hejda | Tyler Ulinskas | Udo Wermuth |
| Ulrich Gumgowski | Ulrik Vieth | Uwe Berger |
| Valentinas Kriauciukas | Victor Ivrii | Walter Tape |
| Werner Lemberg | Wiktor Gromniak | William H Asquith |
| William Rising | William S Bennett | William Thomas |
| Win Treese (in memory of David Walden) | Yakov Peretz | Yokota Tatsuro |
| Yu-Chiang Hsu | Yukitoshi Fujimura | Yusuke Terada |
| Zigang Pan | Zito K Nagata |