| 1 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | 3 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 3 | 1 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 4 | 6 |  | Science Vs | Spotify Studios | |
| 5 | 2 |  | Ologies with Alie Ward | Alie Ward | |
| 6 | 2 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 7 | 1 |  | Making Sense with Sam Harris | Sam Harris | |
| 8 | 5 |  | Unexplainable | Vox | |
| 9 | — |  | The Naked Scientists Podcast | The Naked Scientists | |
| 10 | 2 |  | Curious Cases | BBC Radio 4 | |
| 11 | 4 |  | Radiolab | WNYC Studios | |
| 12 | 3 |  | Speaking of Psychology | American Psychological Association | |
| 13 | 7 |  | Most Terrifying Places in America | Travel Channel | |
| 14 | 3 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 15 | 34 |  | The Psychology Podcast | iHeartPodcasts | |
| 16 | 146 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 17 | 48 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 18 | 64 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 19 | — |  | Head Shepherd | Mark Ferguson | |
| 20 | 7 |  | Short Wave | NPR | |
| 21 | 123 | T | Talks On Psychoanalysis | International Psychoanalytical Association | |
| 22 | 40 |  | 5 Live Science Podcast | BBC Radio 5 Live | |
| 23 | 35 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 24 | — |  | Blurry Creatures | Blurry Creatures | |
| 25 | 13 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 26 | 21 |  | How We're Wired | The Bertarelli Foundation | |
| 27 | 1 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 28 | 11 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 29 | 38 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 30 | 1 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 31 | 17 |  | Discovery | BBC World Service | |
| 32 | 88 |  | The Michael Shermer Show | Michael Shermer | |
| 33 | 11 |  | Science Weekly | The Guardian | |
| 34 | 54 |  | Freakonomics, M.D. | Freakonomics Radio + Stitcher | |
| 35 | 17 | W | Wildest Kruger Stories | Karolina Norée | |
| 36 | 40 | S | StarLife | BioAstra | |
| 37 | 86 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 38 | — | L | Let's Talk Micro | Luis Plaza | |
| 39 | 46 | M | Mathematics Simplified | Anjali Sharma | |
| 40 | 62 |  | The Weirdest Thing I Learned This Week | Popular Science | |
| 41 | 16 |  | Science Friday | Science Friday and WNYC Studios | |
| 42 | 8 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 43 | 94 |  | Brave New Planet | Pushkin Industries | |
| 44 | 28 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 45 | 38 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 46 | 113 |  | iLukuluku | All Ears FM | |
| 47 | 27 |  | The Astrophysics Podcast | Paul Duffell | |
| 48 | 140 |  | Bigfoot Eyewitness Radio | Vic Cundiff | |
| 49 | 26 |  | New Books in Critical Theory | Marshall Poe | |
| 50 | — | D | Dive Stories | PADI | |
| 51 | — | T | The Athlete Climate Academy | Kilian Jornet and Huw James | |
| 52 | — | T | The Natural History Podcast | James Mills | |
| 53 | — | M | MDS Podcast | International Parkinson and Movement Disorder Society | |
| 54 | 35 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 55 | 67 |  | Relebogile Mabotja hosts The Naked Scientist | Radio 702 | |
| 56 | 33 |  | More or Less | BBC Radio 4 | |
| 57 | 12 |  | All In The Mind | ABC | |
| 58 | 33 |  | Wild Times: Wildlife Education | Wildlife Educator - Forrest Galante | |
| 59 | 17 |  | Robinson's Podcast | Robinson Erhardt | |
| 60 | 9 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 61 | 73 |  | SciShow Tangents | Complexly | |
| 62 | 41 |  | Oceans: Life Under Water | Crowd Network | Greenpeace UK | |
| 63 | 3 |  | Nature Podcast | Springer Nature Limited | |
| 64 | 88 |  | Science & Futurism with Isaac Arthur | Isaac Arthur | |
| 65 | 37 | T | The Power Shift: Decolonising Development | Kate Bird | |
| 66 | 50 |  | Radiowissen | Bayerischer Rundfunk | |
| 67 | 35 |  | The Science of Everything Podcast | James Fodor | |
| 68 | — |  | Diabetes Care "On Air" | American Diabetes Association | |
| 69 | 21 |  | Living Planet | DW | |
| 70 | 40 |  | Origin Stories | The Leakey Foundation | |
| 71 | 40 | T | The Grazing Game Podcast | Cam Griffin | |
| 72 | 42 |  | That UFO Podcast | That UFO Podcast | |
| 73 | — |  | Completely Arbortrary | Completely Arbortrary | |
| 74 | — |  | Astrum Space | Astrum | |
| 75 | 42 | E | Energized: The Future of Energy | GZERO Media | |
| 76 | 42 | T | The Sociology Show | Matthew Wilkin | |
| 77 | 37 | S | Stanford Psychology Podcast | Stanford Psychology | |
| 78 | 41 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 79 | 44 |  | Razib Khan's Unsupervised Learning | Razib Khan | |
| 80 | 44 |  | Scotland Outdoors | BBC Radio Scotland | |
| 81 | 43 | C | Converging Dialogues | Converging Dialogues | |
| 82 | — | W | World of Sharks | Save Our Seas Foundation | |
| 83 | 44 |  | The Sociology of Everything Podcast | Eric Hsu & Louis Everuss (Lou & the Hsu) | |
| 84 | 43 |  | Psychoanalysis & You | APsA American Psychoanalytic Association | |
| 85 | — | D | DiabetesBio | American Diabetes Association | |
| 86 | — | R | Radiology AI Podcast | RSNA | Radiological Society of North America (RSNA) | |
| 87 | — | A | Aphrodite Society | Lauren Rogers | |
| 88 | 33 |  | CrowdScience | BBC World Service | |
| 89 | 45 | E | Easy Physics | Easy Physics | |
| 90 | 47 | P | Physics World Stories Podcast | Physics World | |
| 91 | 84 |  | Let's Learn Everything! | Maximum Fun | |
| 92 | 8 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 93 | 47 |  | Green Dreamer: Seeding change towards collective healing, sustainability, regeneration | kaméa chayne | |
| 94 | 25 |  | BBC Inside Science | BBC Radio 4 | |
| 95 | 32 |  | Big Picture Science | Big Picture Science | |
| 96 | 44 |  | Speed & Scale | TED | |
| 97 | — |  | IQ - Wissenschaft und Forschung | Bayerischer Rundfunk | |
| 98 | 45 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 99 | 35 |  | The Marginal Revolution Podcast | Mercatus Center at George Mason University | |
| 100 | 27 |  | The Orthobullets Podcast | Orthobullets | |
