| 1 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | 1 |  | Ologies with Alie Ward | Alie Ward | |
| 3 | 1 |  | Unexplainable | Vox | |
| 4 | — |  | StarTalk Radio | Neil deGrasse Tyson | |
| 5 | 1 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 6 | 1 |  | Radiolab | WNYC Studios | |
| 7 | — |  | Making Sense with Sam Harris | Sam Harris | |
| 8 | — |  | The Naked Scientists Podcast | The Naked Scientists | |
| 9 | 1 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 10 | 1 |  | Science Vs | Spotify Studios | |
| 11 | 22 |  | Blurry Creatures | Blurry Creatures | |
| 12 | 3 |  | The Psychology Podcast | iHeartPodcasts | |
| 13 | — |  | Multiverse 5D @ M5D | Multiverse 5D Network | |
| 14 | 56 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 15 | 23 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 16 | 26 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 17 | 93 |  | The Orthobullets Podcast | Orthobullets | |
| 18 | 55 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 19 | 3 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 20 | 51 |  | Nature Podcast | Springer Nature Limited | |
| 21 | 2 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 22 | 10 | M | Mathematics Simplified | Anjali Sharma | |
| 23 | 1 |  | Science Weekly | The Guardian | |
| 24 | 10 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 25 | 53 |  | The Climate Question | BBC World Service | |
| 26 | 1 |  | More or Less | BBC Radio 4 | |
| 27 | 87 |  | Regenerative Agriculture Podcast | John Kempf | |
| 28 | 3 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 29 | 6 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 30 | 9 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 31 | 147 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 32 | 17 |  | CrowdScience | BBC World Service | |
| 33 | 26 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 34 | 16 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 35 | 22 |  | Relebogile Mabotja hosts The Naked Scientist | Radio 702 | |
| 36 | 16 |  | Opinionated History of Mathematics | Intellectual Mathematics | |
| 37 | 5 | S | Students of Surgery | Martin Brand | |
| 38 | 16 |  | Curious Cases | BBC Radio 4 | |
| 39 | — | B | Blood Podcast | American Society of Hematology | |
| 40 | 151 | A | Ask the Naked Scientists | Dr Chris Smith | |
| 41 | 154 |  | Big Brains | University of Chicago Podcast Network | |
| 42 | — | L | Let's Talk Micro | Luis Plaza | |
| 43 | 109 |  | EverydaySpy Podcast | Andrew Bustamante | |
| 44 | 18 | T | The Human Behavior Podcast | The Human Behavior Podcast | |
| 45 | — | M | Marine Tech Talk | Teledyne Marine | |
| 46 | 18 |  | Science In Action | BBC World Service | |
| 47 | — |  | Planetary Radio: Space Exploration, Astronomy and Science | The Planetary Society | |
| 48 | — | T | THE PSYCHOLOGY WORLD PODCAST | Connor Whiteley | |
| 49 | — |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 50 | — |  | Infectious Disease Puscast | Vincent Racaniello | |
| 51 | — | T | This Week in Science – The Kickass Science Podcast | Dr. Kirsten Sanford Science Media | |
| 52 | — | P | PHEMCAST | Tim Nutbeam and Clare Bosanko | |
| 53 | — | N | National Geographic Magazine | Radio Eye | |
| 54 | — | G | Generation Anthropocene | Generation Anthropocene | |
| 55 | — |  | iLukuluku | All Ears FM | |
| 56 | — | N | Naked Neuroscience, from the Naked Scientists | James Tytko | |
| 57 | — | N | Naked Scientists, In Short Special Editions Podcast | The Naked Scientists | |
| 58 | — |  | Naked Astronomy, from the Naked Scientists | The Naked Scientists | |
| 59 | — | E | Economics In Ten | Economics In Ten | |
| 60 | — | J | Journal of Hand Surgery | ASSH | |
| 61 | — | H | Hematopoiesis: An ASH Trainee Council Production | American Society of Hematology | |
| 62 | — | S | STEMz Perspectives | Young Scientists Journal | |
| 63 | — | H | HMSC Connects! Podcast | Harvard Museums of Science & Culture | |
| 64 | 27 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 65 | 17 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 66 | 37 |  | So Cultured Podcast | Liv Grant & Taz Shipley | |
| 67 | 37 |  | Freakonomics, M.D. | Freakonomics Radio + Stitcher | |
| 68 | 37 |  | Speaking of Psychology | American Psychological Association | |
| 69 | 64 |  | 5 Live Science Podcast | BBC Radio 5 Live | |
| 70 | 53 |  | Discovery | BBC World Service | |
| 71 | 30 |  | TheThinkingAtheist | The Thinking Atheist | |
| 72 | 36 |  | Living Planet | DW | |
| 73 | 19 | P | Paediatric Emergencies | Dr Christopher Flannigan | |
| 74 | 34 | T | The Birding Life Podcast Network | The Birding Life Podcast Network | |
| 75 | 41 |  | Grazing Grass Podcast sharing Regenerative Ag Stories | Grazing Grass | |
| 76 | 41 | N | New Books in Sex, Sexuality, and Sex Work | New Books Network | |
| 77 | 42 |  | Science Friday | Science Friday and WNYC Studios | |
| 78 | 39 | M | Mind & Life Europe Podcast | Mind & Life Europe | |
| 79 | 3 |  | Short Wave | NPR | |
| 80 | 37 | R | Richard Wiseman's On Your Mind | Podimo & TellTale | |
| 81 | 29 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 82 | 29 |  | Great Mysteries of Physics | The Conversation | |
| 83 | 2 |  | Universe Today Podcast | Fraser Cain | |
| 84 | 44 | S | Stanford Psychology Podcast | Stanford Psychology | |
| 85 | 22 |  | The Michael Shermer Show | Michael Shermer | |
| 86 | 42 |  | The Best of Coast to Coast AM | iHeartPodcasts and Coast to Coast AM | |
| 87 | 15 |  | Houston We Have a Podcast | National Aeronautics and Space Administration (NASA) | |
| 88 | 32 |  | Science Magazine Podcast | Science Magazine | |
| 89 | 17 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 90 | 32 | S | Song and Plants | Carmen Porter | |
| 91 | 46 | T | This Wild Life Conservation Podcast | Amy Turner | |
| 92 | 44 | I | INCLUSIVE URBAN FUTURES | Orna Rosenfeld | |
| 93 | 46 |  | Head Shepherd | Mark Ferguson | |
| 94 | 48 |  | Unexpected Elements | BBC World Service | |
| 95 | 40 |  | The Common Descent Podcast | Common Descent | |
| 96 | 47 |  | The Behavioral Design Podcast | Samuel Salzer and Aline Holzwarth | |
| 97 | 47 |  | Raising Health | Andreessen Horowitz, a16z Bio + Health | |
| 98 | 47 | T | The Upper Hand: Chuck & Chris Talk Hand Surgery | Chuck and Chris | |
| 99 | 5 |  | BBC Inside Science | BBC Radio 4 | |
| 100 | 40 |  | Science Rules! with Bill Nye | Stitcher & Bill Nye | |
