| 1 | 4 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | 1 |  | Curious Cases | BBC Radio 4 | |
| 3 | 1 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 4 | 2 |  | Radiolab | WNYC Studios | |
| 5 | 7 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 6 | 3 |  | Ologies with Alie Ward | Alie Ward | |
| 7 | 32 |  | Unexplainable | Vox | |
| 8 | — |  | Making Sense with Sam Harris | Sam Harris | |
| 9 | 86 |  | Discovery | BBC World Service | |
| 10 | 1 |  | Science Weekly | The Guardian | |
| 11 | 30 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 12 | 2 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 13 | — |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 14 | 5 |  | More or Less | BBC Radio 4 | |
| 15 | 9 |  | Ecosystemic Futures | Dyan Finkhousen: CEO of Shoshin Works | |
| 16 | 128 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 17 | 3 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 18 | 3 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 19 | 12 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 20 | 11 | F | Futureproof with Jonathan McCrea | Newstalk | |
| 21 | 58 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 22 | 94 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 23 | 153 |  | What Remains | WRAL News | Raleigh, North Carolina | |
| 24 | — | W | Why? with Emma Kennedy | Podmasters | |
| 25 | — | C | Conservation and Science | Tommy's Outdoors | |
| 26 | — | T | This Anthro Life | Anthrocurious, LLC | |
| 27 | 153 |  | Geology Bites | Oliver Strimpel | |
| 28 | — |  | Star Diary | BBC Sky at Night Magazine | |
| 29 | 144 |  | It's Sedimentary, My Dear: A Geology Podcast | Ellen & Jane | |
| 30 | — |  | Sensible Medicine | Sensible Medicine Authors and Editors | |
| 31 | — | S | Sustainable Infrastructure | Sustainability with SLES: Smart Local Energy Systems | Amey | |
| 32 | — | T | The Chain: Protein Engineering Podcast | Cambridge Healthtech Institute | |
| 33 | — |  | Choiceology with Katy Milkman | Charles Schwab | |
| 34 | — | E | Ecolution | RTÉ Kids | |
| 35 | — |  | Beyond the Ice | British Antarctic Survey | |
| 36 | — | C | Conversations in Drug Development | Boyds | |
| 37 | — | C | Cows and Effect | Paul Allison and Michael Blanche | |
| 38 | — |  | PlanetGeo: The Geology Podcast | Chris and Jesse | |
| 39 | — | B | Best of Natural History Radio | BBC Radio 4 | |
| 40 | — | B | Biomed Unleashed | Alisa Ovsiannikova, Mikhail Bagirov, Alba Villagrasa Martín, Amalia Bagdasaryan | |
| 41 | — | B | Byte Sized Breakthroughs | Arjun Srivastava | |
| 42 | 5 |  | The world, the universe and us | New Scientist | |
| 43 | 29 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 44 | 27 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 45 | 21 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 46 | 30 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 47 | 26 | B | Boring History for Sleep | Velvet | |
| 48 | 30 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 49 | 24 | H | Hyde Park Civilizace | Česká televize | |
| 50 | 28 |  | The Psychology Podcast | iHeartPodcasts | |
| 51 | 103 |  | The Common Descent Podcast | Common Descent | |
| 52 | 29 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 53 | 108 |  | Paranormal Portal | Brent Thomas | |
| 54 | 26 |  | SciShow Tangents | Complexly | |
| 55 | — | T | The Intern At Work: Internal Medicine | Medicine Pods: The Intern at Work | |
| 56 | 21 | T | Two Paeds In A Pod | Dr Ian Lewins | |
| 57 | 31 | R | Ri Science Podcast | The Royal Institution | |
| 58 | 31 | P | Pracademics Inc | Pracademics Inc | |
| 59 | — | T | too long didn’t read | The Alan Turing Institute | |
| 60 | 31 | H | How To Protect The Ocean | Andrew Lewin | |
| 61 | 31 |  | Psychoanalysis & You | APsA American Psychoanalytic Association | |
| 62 | 31 |  | The Optispan Podcast with Matt Kaeberlein | Optispan | |
| 63 | 31 |  | The Social Work Podcast | Jonathan B. Singer, Ph.D., LCSW | |
| 64 | 31 | L | La Suite dans les idées | France Culture | |
| 65 | 31 | U | Urban Radar | Sheffield Urbanism | |
| 66 | 28 |  | Rare Earth | BBC Radio 4 | |
| 67 | 24 |  | Astrum Space | Astrum | |
| 68 | 31 | C | CountryWide | RTÉ Radio 1 | |
| 69 | 33 | I | In Your Nature | By BirdWatch Ireland | |
| 70 | 30 |  | Astronomy Daily: Space News Updates | bitesz.com | |
| 71 | 29 | N | Naturefile | RTÉ lyric fm | |
| 72 | 22 |  | Let's Learn Everything! | Maximum Fun | |
| 73 | 29 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 74 | 28 | B | Bird Songs with Seán Ronayne | RTÉ lyric fm | |
| 75 | 22 |  | The Best of Coast to Coast AM | iHeartPodcasts and Coast to Coast AM | |
| 76 | 24 |  | Origin Stories | The Leakey Foundation | |
| 77 | 23 | T | The Critter Shed | Collie Ennis & Colette Kinsella for Red Hare Media | |
| 78 | 27 |  | New Books in Psychoanalysis | Marshall Poe | |
| 79 | 34 |  | Houston We Have a Podcast | National Aeronautics and Space Administration (NASA) | |
| 80 | 31 | D | Double Loop Podcast | Glenn Langenburg and Eric Ray | |
| 81 | 33 |  | Instant Genius | Our Media | |
| 82 | 27 | P | Psychology | Yale School of Medicine | |
| 83 | 27 |  | 洪晃|晃然大悟 | 洪晃|晃然大悟 | |
| 84 | 27 | D | Dementia Researcher Blogs | Dementia Researcher | |
| 85 | 27 |  | GreenUP - A Micro-Podcast About GreenTech and Sustainability | Peter Gorne | |
| 86 | 27 | A | Agents Of Tech | WebsEdge | |
| 87 | 27 | L | Live Longer World | Aastha Jain | |
| 88 | 27 | I | If You Were An Engineer | Primary Engineer | |
| 89 | 23 |  | A Life More Wild | Canopy & Stars | |
| 90 | 21 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 91 | 29 | T | The Dairy Trail | Agriland Media | |
| 92 | 27 |  | BBC Inside Science | BBC Radio 4 | |
| 93 | 30 |  | Manifold | Steve Hsu | |
| 94 | 30 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 95 | 27 |  | CrowdScience | BBC World Service | |
| 96 | 23 |  | Babbage from The Economist | The Economist | |
| 97 | 30 |  | Proxy with Yowei Shaw | Y3 Productions | |
| 98 | 22 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 99 | 24 |  | Overheard at National Geographic | National Geographic | |
| 100 | 30 |  | The Skeptic Podcast | The Skeptic | |
