| 1 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | 3 |  | Ologies with Alie Ward | Alie Ward | |
| 3 | 1 |  | Making Sense with Sam Harris | Sam Harris | |
| 4 | 1 |  | Unexplainable | Vox | |
| 5 | 3 | S | Students of Surgery | Martin Brand | |
| 6 | 4 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 7 | 1 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 8 | 1 |  | Curious Cases | BBC Radio 4 | |
| 9 | 6 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 10 | — |  | Proxy with Yowei Shaw | Y3 Productions | |
| 11 | 11 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 12 | 11 |  | Blurry Creatures | Blurry Creatures | |
| 13 | 21 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 14 | — |  | ScienceStuff | iHeartPodcasts | |
| 15 | 11 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 16 | 7 |  | More or Less | BBC Radio 4 | |
| 17 | 4 |  | Science Vs | Spotify Studios | |
| 18 | 7 |  | Regenerative Agriculture Podcast | John Kempf | |
| 19 | 2 |  | Science Weekly | The Guardian | |
| 20 | — |  | Radiolab | WNYC Studios | |
| 21 | 9 |  | The Psychology Podcast | iHeartPodcasts | |
| 22 | 30 |  | The Nature Of with Willow Defebaugh | Atmos | |
| 23 | 5 |  | SAPIENS: A Podcast for Everything Human | SAPIENS | |
| 24 | — |  | Science Friday | Science Friday and WNYC Studios | |
| 25 | 6 |  | Ancient Aliens | PodcastOne | |
| 26 | 7 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 27 | 44 | T | The Birding Life Podcast Network | The Birding Life Podcast Network | |
| 28 | 3 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 29 | 8 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 30 | 54 | T | The Skeptic Zone | Richard Saunders | |
| 31 | — |  | Big Brains | University of Chicago Podcast Network | |
| 32 | 67 |  | New Books in Critical Theory | Marshall Poe | |
| 33 | — |  | Mongabay Newscast | Mongabay.com | |
| 34 | 17 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 35 | 8 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 36 | — |  | When Science Finds a Way | Wellcome | |
| 37 | 21 |  | CrowdScience | BBC World Service | |
| 38 | — |  | The Life Scientific | BBC Radio 4 | |
| 39 | — | P | Photobiomodulation: A New Approach to Retinal Disease Description | Texere Publishing | |
| 40 | — | A | ASPEN Podcasts | ASPEN Podcasts | |
| 41 | — | A | Authentic Biochemistry | Dr Daniel J. Guerra | |
| 42 | — |  | Statistics Made Simple | Brad R. Fulton, PhD | |
| 43 | — |  | This Week in Neuroscience | Vincent Racaniello | |
| 44 | — | T | The Poultry Nutrition Blackbelt Podcast | Wisenetix | |
| 45 | — | N | Not So Random Facts | Storyteller Entertainment | |
| 46 | — | D | Data Book | Inside Digital Health™ | |
| 47 | — |  | AuSPEN - Insights in Clinical Nutrition | AuSPEN | |
| 48 | — |  | Care More Be Better: A Podcast For Sustainable Social Impact and Regeneration | Corinna Bellizzi | |
| 49 | — | P | Project Oncology® | ReachMD | |
| 50 | 25 |  | Astrum Space | Astrum | |
| 51 | 23 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 52 | 35 | B | BJA Education Podcasts | BJA Education | |
| 53 | 23 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 54 | 25 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 55 | 3 |  | The Michael Shermer Show | Michael Shermer | |
| 56 | 24 |  | Neuroscience: Amateur Hour | Neuroscience: Amateur Hour | |
| 57 | 7 |  | Invisibilia | NPR | |
| 58 | 22 |  | You Are Not So Smart | You Are Not So Smart | |
| 59 | 2 |  | Relebogile Mabotja hosts The Naked Scientist | Radio 702 | |
| 60 | 25 | T | The Human Behavior Podcast | The Human Behavior Podcast | |
| 61 | 24 |  | The Warblers by Birds Canada | Birds Canada | |
| 62 | 7 |  | Discovery | BBC World Service | |
| 63 | 21 |  | The Science of Everything Podcast | James Fodor | |
| 64 | 14 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 65 | 22 |  | De Universiteit van Nederland Podcast | Universiteit van Nederland | |
| 66 | 27 | V | Video and Lectures - CTisus.com | Elliot K. Fishman, MD, FACR | |
| 67 | 27 |  | The MapScaping Podcast - GIS, Geospatial, Remote Sensing, earth observation and digital geography | MapScaping | |
| 68 | 27 | W | Wildlife Health Talks | WDA Communications Committee | |
| 69 | 25 |  | Where Is My Mind? | Mark Gober and Blue Duck Media | |
| 70 | 25 | B | BJA: British Journal of Anaesthesia | Rik Thomas, Podcast Editor | |
| 71 | 25 | T | The Amp Hour Electronics Podcast | The Amp Hour (Chris Gammell and David L Jones) | |
| 72 | 25 | H | Hannah and Erik Go Birding | Hannah Buschert and Erik Ostrander | |
| 73 | 25 | T | The Integration Station | Michael Crisci, Eleanor White | |
| 74 | 25 | P | Psychology - Video | Paul Bloom | |
| 75 | 21 |  | Speaking of Psychology | American Psychological Association | |
| 76 | 38 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 77 | 17 |  | Das Wissen | SWR | SWR | |
| 78 | 43 |  | HOLOSKY PODCAST | Holosky Podcast | |
| 79 | 26 |  | Science In Action | BBC World Service | |
| 80 | 12 |  | Overheard at National Geographic | National Geographic | |
| 81 | 9 |  | Real Ghost Stories Online | Real Ghost Stories Online | Paranormal, Supernatural & Horror Radio | |
| 82 | 6 |  | Intelligent Design the Future | Discovery Institute | |
| 83 | 10 |  | This Week in Cardiology | Medscape | |
| 84 | 5 |  | Short Wave | NPR | |
| 85 | 26 |  | Robinson's Podcast | Robinson Erhardt | |
| 86 | 24 |  | Scotland Outdoors | BBC Radio Scotland | |
| 87 | 31 |  | Oceans: Life Under Water | Crowd Network | Greenpeace UK | |
| 88 | 23 |  | The Medbullets Step 2 & 3 Podcast | Medbullets | |
| 89 | 76 |  | Nature Podcast | Springer Nature Limited | |
| 90 | 29 |  | Gut Check Project | KBMD | |
| 91 | 34 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 92 | 29 |  | Brave New Planet | Pushkin Industries | |
| 93 | 27 | P | Paediatric Emergencies | Dr Christopher Flannigan | |
| 94 | 27 | A | Action Design Radio | Action Design Network | |
| 95 | 41 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 96 | 79 |  | Safety Third | Safety Third | |
| 97 | 27 |  | Mysterious Universe | 8th Kind | |
| 98 | 23 |  | Choiceology with Katy Milkman | Charles Schwab | |
| 99 | 1 |  | Nephilim Death Squad | TopLobsta Productions | |
| 100 | 2 |  | That UFO Podcast | That UFO Podcast | |
