| 1 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | — |  | StarTalk Radio | Neil deGrasse Tyson | |
| 3 | — |  | Ologies with Alie Ward | Alie Ward | |
| 4 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 5 | 2 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 6 | 1 |  | Unexplainable | Vox | |
| 7 | 2 |  | Radiolab | WNYC Studios | |
| 8 | 2 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 9 | 6 |  | Making Sense with Sam Harris | Sam Harris | |
| 10 | — |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 11 | — |  | Where Is My Mind? | Mark Gober and Blue Duck Media | |
| 12 | 4 |  | BBC Inside Science | BBC Radio 4 | |
| 13 | 38 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 14 | 6 |  | CREOGs Over Coffee | CREOGs Over Coffee | |
| 15 | 3 |  | Discovery | BBC World Service | |
| 16 | 50 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 17 | 3 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 18 | 7 |  | Short Wave | NPR | |
| 19 | — |  | CrowdScience | BBC World Service | |
| 20 | 135 |  | HOLOSKY PODCAST | Holosky Podcast | |
| 21 | 42 |  | Deep Insights with Mining Review Africa | Mining Review Africa | |
| 22 | 10 |  | More or Less | BBC Radio 4 | |
| 23 | 58 | T | The Birding Life Podcast Network | The Birding Life Podcast Network | |
| 24 | 13 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 25 | 48 |  | Curious Cases | BBC Radio 4 | |
| 26 | 6 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 27 | — |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 28 | 15 |  | Science Weekly | The Guardian | |
| 29 | — |  | The Geonomics Podcast | Dr Alex Dickinson | |
| 30 | — |  | Jung Chicago Radio | C. G. Jung Institute of Chicago | |
| 31 | — |  | How We're Wired | The Bertarelli Foundation | |
| 32 | — | S | Space | BBC World Service | |
| 33 | — | P | Pharmaceutical Executive | Pharmaceutical Executive Podcast | |
| 34 | — |  | Choiceology with Katy Milkman | Charles Schwab | |
| 35 | — | C | Conversations in Fetal Medicine | Conversations in Fetal Medicine | |
| 36 | — | T | The Royal College of Psychiatrists Podcast | RCPsych | |
| 37 | — | P | Pulse of the Planet Podcast with Jim Metzner | Science | Nature | Environment | Technology | Jim Metzner | |
| 38 | — | I | IQ老友说 | IQVIA艾昆纬 | |
| 39 | — | A | AmphibiCast | Dan Drobates | |
| 40 | — |  | The Center for Medical Simulation | Center for Medical Simulation | |
| 41 | 24 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 42 | 132 |  | Let's Learn Everything! | Maximum Fun | |
| 43 | 24 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 44 | — | A | AfroPop Music 4 D Soul | BlackBoiAmazing | |
| 45 | 10 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 46 | 22 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 47 | 57 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 48 | 5 | S | Students of Surgery | Martin Brand | |
| 49 | 28 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 50 | 21 |  | Overheard at National Geographic | National Geographic | |
| 51 | 2 |  | The Psychology Podcast | iHeartPodcasts | |
| 52 | — |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 53 | 25 |  | ScienceStuff | iHeartPodcasts | |
| 54 | 32 | K | K9 Conservationists | Kayla Fratt | |
| 55 | 32 | S | Surgical Hot Topics | Unknown | |
| 56 | 31 |  | The Weirdest Thing I Learned This Week | Popular Science | |
| 57 | 31 |  | Songs 4 FRCR: Radiology FRCR 2A Revision | FRCR Revision | |
| 58 | 136 |  | The world, the universe and us | New Scientist | |
| 59 | 32 |  | Dr. Chapa’s OBGYN Clinical Pearls | Dr. Chapa’s Clinical Pearls | |
| 60 | 81 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 61 | 30 | T | The Water Scientists | KWR Water Research Institute | |
| 62 | 30 |  | Brave New World | Evening Standard | |
| 63 | 30 | P | Power In Excellence | Dr John | |
| 64 | 30 |  | For Water For Life | JoJo | |
| 65 | 29 | P | Public Health Insight | PHI Media | |
| 66 | 36 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 67 | 29 | U | Urban Radar | Tom Goodfellow and Beth Perry | |
| 68 | 29 | W | WCS Wild Audio | Wildlife Conservation Society | |
| 69 | 29 |  | Wissen Weekly | Spotify Studios | |
| 70 | 29 | T | The Qualitative Open Mic | quahrc | |
| 71 | 29 | C | CrowdScience | BBC World Service | |
| 72 | 25 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 73 | 20 |  | Instant Genius | Our Media | |
| 74 | 20 |  | Speaking of Psychology | American Psychological Association | |
| 75 | 13 |  | Science In Action | BBC World Service | |
| 76 | 11 |  | Relebogile Mabotja hosts The Naked Scientist | Radio 702 | |
| 77 | 31 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 78 | 28 | F | Forschung aktuell | Deutschlandfunk | |
| 79 | 44 |  | You Are Not So Smart | You Are Not So Smart | |
| 80 | 10 |  | Blurry Creatures | Blurry Creatures | |
| 81 | 94 |  | Living Planet | DW | |
| 82 | 23 |  | The Sociology of Everything Podcast | Eric Hsu & Louis Everuss (Lou & the Hsu) | |
| 83 | 37 |  | Regenerative Agriculture Podcast | John Kempf | |
| 84 | 36 |  | Science Friday | Science Friday and WNYC Studios | |
| 85 | 51 |  | Geology Bites | Oliver Strimpel | |
| 86 | — |  | 60-Second Health | Scientific American | |
| 87 | 31 | T | This Wild Life Conservation Podcast | Amy Turner | |
| 88 | 20 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 89 | 34 |  | Astronomy Cast | Fraser Cain and Dr. Pamela Gay | |
| 90 | 32 |  | Meet the Farmers | Ben Eagle, RuralPod Media | |
| 91 | 31 |  | Chemistry Made Simple | Matthew Macariou | |
| 92 | — | S | Shirtloads of Science | Dr Karl Kruszelnicki | |
| 93 | 29 |  | In Defense of Plants Podcast | In Defense of Plants | |
| 94 | 2 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 95 | 50 |  | The Michael Shermer Show | Michael Shermer | |
| 96 | 35 | S | Stanford Psychology Podcast | Stanford Psychology | |
| 97 | 20 |  | Nephilim Death Squad | TopLobsta Productions | |
| 98 | 41 |  | Science Vs | Spotify Studios | |
| 99 | 13 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 100 | 35 | G | Guardians of the River | Wild Bird Trust, NGOWP, House of Pod | |
