| 1 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | 1 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 3 | 1 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 4 | 2 |  | Making Sense with Sam Harris | Sam Harris | |
| 5 | — |  | Ologies with Alie Ward | Alie Ward | |
| 6 | 2 |  | Radiolab | WNYC Studios | |
| 7 | 9 |  | Curious Cases | BBC Radio 4 | |
| 8 | 2 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 9 | 8 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 10 | 2 |  | Unexplainable | Vox | |
| 11 | 4 |  | Science Vs | Spotify Studios | |
| 12 | 17 |  | Blurry Creatures | Blurry Creatures | |
| 13 | 11 |  | Nature Podcast | Springer Nature Limited | |
| 14 | 1 |  | Living Planet | DW | |
| 15 | 1 |  | New Books in Critical Theory | Marshall Poe | |
| 16 | 2 |  | The Science of Everything Podcast | James Fodor | |
| 17 | 45 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 18 | 13 |  | CrowdScience | BBC World Service | |
| 19 | 10 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 20 | 3 | T | The Best of Making Sense with Sam Harris | Sam Harris | |
| 21 | 68 |  | Short Wave | NPR | |
| 22 | 3 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 23 | 13 |  | Speed & Scale | TED | |
| 24 | 82 | W | Wildest Kruger Stories | Karolina Norée | |
| 25 | 8 |  | The Psychology Podcast | iHeartPodcasts | |
| 26 | 26 |  | BBC Inside Science | BBC Radio 4 | |
| 27 | — | H | Hopkins Biotech Podcast | Hopkins Biotech Podcast | |
| 28 | — |  | The Hamilton Morris Podcast | Hamilton Morris | |
| 29 | 22 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 30 | 37 |  | Your Brain On | Drs. Ayesha and Dean Sherzai | |
| 31 | 56 |  | Das Wissen | SWR | SWR | |
| 32 | 17 |  | The world, the universe and us | New Scientist | |
| 33 | — | S | Simplifying Complexity | Sean Brady from Brady Heywood | |
| 34 | 100 |  | BrainStuff | iHeartPodcasts | |
| 35 | 16 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 36 | 11 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 37 | 16 |  | Discovery | BBC World Service | |
| 38 | 18 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 39 | 7 |  | The Michael Shermer Show | Michael Shermer | |
| 40 | 10 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 41 | 17 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 42 | — |  | Night Science | Itai Yanai & Martin Lercher | |
| 43 | 32 |  | Somewhere in the Skies | SpectreVision Radio | |
| 44 | 20 |  | 5 Live Science Podcast | BBC Radio 5 Live | |
| 45 | 23 |  | TED Talks Science and Medicine | TED | |
| 46 | — |  | Sasquatch Tracks | Micah Hanks, Dakota Waddell and Jeff Smith | |
| 47 | 113 |  | Oceans: Life Under Water | Crowd Network | Greenpeace UK | |
| 48 | — | H | How To Protect The Ocean | Andrew Lewin | |
| 49 | — |  | The Numberphile Podcast | Brady Haran | |
| 50 | — | A | African Cities | African Cities Research Consortium | |
| 51 | — |  | Cosmos In You - Guide to Inner Space | Suzannah Scully | |
| 52 | — | M | Modern Physics: The Theoretical Minimum - Quantum Mechanics | Stanford Continuing Studies Program | |
| 53 | — |  | How We're Wired | The Bertarelli Foundation | |
| 54 | — |  | Pale Blue Pod | Multitude | |
| 55 | — | T | Talks On Psychoanalysis | International Psychoanalytical Association | |
| 56 | — |  | Brave New Planet | Pushkin Industries | |
| 57 | 22 |  | The Story Collider | Story Collider, Inc. | |
| 58 | 32 |  | Green Dreamer: Seeding change towards collective healing, sustainability, regeneration | kaméa chayne | |
| 59 | 32 |  | The Couples Therapist Couch | Shane Birkel | |
| 60 | 32 |  | Overheard at National Geographic | National Geographic | |
| 61 | 25 |  | You Are Not So Smart | You Are Not So Smart | |
| 62 | 41 |  | Unexpected Elements | BBC World Service | |
| 63 | 29 |  | Big Picture Science | Big Picture Science | |
| 64 | 14 |  | Science Weekly | The Guardian | |
| 65 | 26 |  | Science Rules! with Bill Nye | Stitcher & Bill Nye | |
| 66 | 10 |  | Space Boffins, from the Naked Scientists | Richard Hollingham, Sue Nelson | |
| 67 | 76 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 68 | 31 | M | Mathematics Simplified | Anjali Sharma | |
| 69 | 29 |  | Drilled | Pushkin Industries | |
| 70 | 21 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 71 | 33 |  | The Climate Question | BBC World Service | |
| 72 | — |  | Child | BBC Radio 4 | |
| 73 | 32 | T | The Science Behind the Bible | Taylor | Science Behind the Bible | |
| 74 | 32 | T | The Ultra Sports Science Foundation Podcast | Ultra Sports Science Foundation | |
| 75 | 32 |  | For What It’s Earth | Emma Brisdion & Sophie Pavelle | |
| 76 | 32 | B | Biodiversity Speaks | IBioS Collaboratory | |
| 77 | 32 | W | What Science Says | Mahshad Kolahdouzan | |
| 78 | 32 | G | Geosynthetica's GeoTalk | Geosynthetica | |
| 79 | 19 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 80 | 32 |  | Speaking of Psychology | American Psychological Association | |
| 81 | 26 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 82 | 11 |  | Regenerative Agriculture Podcast | John Kempf | |
| 83 | 22 |  | Science Friday | Science Friday and WNYC Studios | |
| 84 | 51 |  | Let's Learn Everything! | Maximum Fun | |
| 85 | 22 |  | Rewilding the World with Ben Goldsmith | Ben Goldsmith | |
| 86 | 35 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 87 | 33 |  | CREOGs Over Coffee | CREOGs Over Coffee | |
| 88 | 3 |  | Most Terrifying Places in America | Travel Channel | |
| 89 | 28 |  | Nephilim Death Squad | TopLobsta Productions | |
| 90 | 31 |  | The Marginal Revolution Podcast | Mercatus Center at George Mason University | |
| 91 | 20 |  | Crime Pays But Botany Doesn't | Tony Santore | |
| 92 | — | J | Jetzt mal ganz in Ruhe | Studio Feynstein | |
| 93 | 32 |  | Freakonomics, M.D. | Freakonomics Radio + Stitcher | |
| 94 | 26 |  | Bite Back with Abbey Sharp | Abbey Sharp / Frequency Podcast Network | |
| 95 | 7 |  | Psychedelics Today | Psychedelics Today | |
| 96 | 23 |  | iLukuluku | All Ears FM | |
| 97 | 31 |  | The Science of Birds | Ivan Phillipsen | |
| 98 | 29 |  | Lost Women of Science | Lost Women of Science | |
| 99 | 34 | P | Prostate Cancer Update | Dr Neil Love | |
| 100 | 30 |  | Nature Guys | Nature Guys | |
