| 1 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | — |  | Making Sense with Sam Harris | Sam Harris | |
| 3 | 2 |  | Radiolab | WNYC Studios | |
| 4 | 2 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 5 | 2 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 6 | 2 |  | Ologies with Alie Ward | Alie Ward | |
| 7 | 17 |  | ScienceStuff | iHeartPodcasts | |
| 8 | 1 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 9 | 5 |  | More or Less | BBC Radio 4 | |
| 10 | 2 |  | The Psychology Podcast | iHeartPodcasts | |
| 11 | 76 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 12 | 39 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 13 | 62 |  | BBC Inside Science | BBC Radio 4 | |
| 14 | 2 |  | Science Vs | Spotify Studios | |
| 15 | 4 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 16 | 112 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 17 | 8 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 18 | 3 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 19 | — |  | Crime Pays But Botany Doesn't | Tony Santore | |
| 20 | — |  | MinuteEarth | Minute Earth | |
| 21 | 68 |  | Science Friday | Science Friday and WNYC Studios | |
| 22 | 3 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 23 | 5 |  | Curious Cases | BBC Radio 4 | |
| 24 | 14 |  | Overheard at National Geographic | National Geographic | |
| 25 | 21 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 26 | 9 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 27 | 34 |  | Discovery | BBC World Service | |
| 28 | 6 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 29 | 14 |  | Unexplainable | Vox | |
| 30 | 16 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 31 | 157 |  | Wild Times: Wildlife Education | Wildlife Educator - Forrest Galante | |
| 32 | 61 |  | Get Out Alive | Ashley Bray | |
| 33 | 94 |  | Songs 4 FRCR: Radiology FRCR 2A Revision | FRCR Revision | |
| 34 | 134 |  | SciShow Tangents | Complexly | |
| 35 | 22 |  | Living Planet | DW | |
| 36 | 133 |  | Nephilim Death Squad | TopLobsta Productions | |
| 37 | 75 | P | Physics Chemistry Math 🔥❤️ | Sumit Sahu | |
| 38 | 18 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 39 | 92 |  | Outside/In | NHPR | |
| 40 | 9 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 41 | 5 |  | Science Weekly | The Guardian | |
| 42 | — | F | Fire Science Show | Wojciech Wegrzynski | |
| 43 | — | T | The Psychology of Criminal and Antisocial Behaviour | WP | |
| 44 | — |  | Bionic Planet: Reversing Climate Change by Restoring Nature | Steve Zwick | |
| 45 | — |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 46 | — | T | The Best of Making Sense with Sam Harris | Sam Harris | |
| 47 | — |  | iLukuluku | All Ears FM | |
| 48 | — | T | The Real Worldwide Problem of Bycatch | Valerie Ramirez | |
| 49 | — |  | I Was Prey | Animal Planet | |
| 50 | — |  | The Mushroom Hour Podcast | Mushroom Hour | |
| 51 | — |  | My Big TOE by Thomas Campbell - Unifying Mind and Matter | Thomas Campbell together with the MBT Volunteers | |
| 52 | — | R | Radiology AI Podcast | RSNA | Radiological Society of North America (RSNA) | |
| 53 | — | B | BAKED in Science | BAKED In Science | |
| 54 | — |  | Clinical Conversations | Royal College of Physicians of Edinburgh | |
| 55 | 24 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 56 | 28 |  | Ancient Aliens | PodcastOne | |
| 57 | 34 |  | Science In Action | BBC World Service | |
| 58 | 3 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 59 | 33 | T | The Germs and Jargon Podcast | Dr. Mark Miller and Mr. Jonathan Hope | |
| 60 | 31 |  | Robinson's Podcast | Robinson Erhardt | |
| 61 | 27 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 62 | 35 | S | Safari Stories | Trunks and Tracks | |
| 63 | 33 |  | The Astrophysics Podcast | Paul Duffell | |
| 64 | 39 |  | The Climate Question | BBC World Service | |
| 65 | 33 |  | Choiceology with Katy Milkman | Charles Schwab | |
| 66 | 9 |  | HOLOSKY PODCAST | Holosky Podcast | |
| 67 | 34 |  | CrowdScience | BBC World Service | |
| 68 | 33 |  | Votre cerveau | France Culture | |
| 69 | 29 | F | Fresh Thinking by Snowden Optiro | Snowden Optiro | |
| 70 | 33 |  | The Medbullets Step 1 Podcast | Medbullets | |
| 71 | 19 |  | Multiverse 5D @ M5D | Multiverse 5D Network | |
| 72 | 16 |  | BrainStuff | iHeartPodcasts | |
| 73 | 35 |  | I Know Dino: The Big Dinosaur Podcast | I KNOW DINO, LLC | |
| 74 | 35 |  | Sciences et Ecologie | France Inter | |
| 75 | 30 |  | That UFO Podcast | That UFO Podcast | |
| 76 | 34 | E | Educational Psychology for Everyone! | Katja Upadyaya (University of Helsinki) | |
| 77 | 36 | A | Animals at Home Network | AAHN | |
| 78 | 35 | I | IFA Podcasts | The International Fertilizer Association (IFA) | |
| 79 | 35 | J | JAXA Space Education Center Podcast | JAXA | |
| 80 | 21 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 81 | 27 |  | Jung Chicago Radio | C. G. Jung Institute of Chicago | |
| 82 | — |  | The Life Scientific | BBC Radio 4 | |
| 83 | 35 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 84 | 24 |  | Planetary Radio: Space Exploration, Astronomy and Science | The Planetary Society | |
| 85 | 38 |  | The Quanta Podcast | Quanta Magazine | |
| 86 | 24 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 87 | 37 |  | The Nature Of with Willow Defebaugh | Atmos | |
| 88 | 4 | T | The Human Behavior Podcast | The Human Behavior Podcast | |
| 89 | 22 |  | EverydaySpy Podcast | Andrew Bustamante | |
| 90 | 33 |  | Real Ghost Stories Online | Real Ghost Stories Online | Paranormal, Supernatural & Horror Radio | |
| 91 | 9 | S | Students of Surgery | Martin Brand | |
| 92 | 29 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 93 | 35 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 94 | 35 |  | Rewilding the World with Ben Goldsmith | Ben Goldsmith | |
| 95 | 42 |  | Mysterious Universe | 8th Kind | |
| 96 | 27 |  | Behavioral Grooves Podcast | Kurt Nelson, PhD and Tim Houlihan | |
| 97 | 31 |  | Science Rules! with Bill Nye | Stitcher & Bill Nye | |
| 98 | 34 |  | Need To Know | Bryce Zabel | |
| 99 | 61 |  | How We're Wired | The Bertarelli Foundation | |
| 100 | 26 | A | Ask the Naked Scientists | Dr Chris Smith | |
