| 1 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 2 | 1 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 3 | 1 |  | Radiolab | WNYC Studios | |
| 4 | 2 |  | Ologies with Alie Ward | Alie Ward | |
| 5 | 1 |  | Making Sense with Sam Harris | Sam Harris | |
| 6 | 1 |  | Unexplainable | Vox | |
| 7 | 1 |  | All In The Mind | ABC | |
| 8 | 1 |  | BBC Inside Science | BBC Radio 4 | |
| 9 | 2 |  | Curious Cases | BBC Radio 4 | |
| 10 | 49 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 11 | 4 |  | More or Less | BBC Radio 4 | |
| 12 | 7 |  | Alive Again | iHeartPodcasts | |
| 13 | 11 | B | Boring History for Sleep | Velvet | |
| 14 | 1 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 15 | 14 |  | Science Weekly | The Guardian | |
| 16 | 6 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 17 | 1 |  | CrowdScience | BBC World Service | |
| 18 | 6 | O | Our Changing World | RNZ | |
| 19 | 86 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 20 | — |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 21 | 10 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 22 | — |  | Speaking of Psychology | American Psychological Association | |
| 23 | 48 | E | Elemental | RNZ | |
| 24 | 1 |  | The world, the universe and us | New Scientist | |
| 25 | 36 | G | Goodfellow Unit | The Goodfellow Unit (University of Auckland) | |
| 26 | 9 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 27 | 13 |  | Science Vs | Spotify Studios | |
| 28 | 5 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 29 | 5 |  | Giant Leap with Taylor Wilson | Giant Leap | |
| 30 | 11 |  | Science In Action | BBC World Service | |
| 31 | 10 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 32 | 18 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 33 | 14 | S | Streets In The Sky | Cambridge Public Heath | |
| 34 | 13 |  | Unexpected Elements | BBC World Service | |
| 35 | 60 | W | What The Duck?! | ABC | |
| 36 | 62 | D | DOC Sounds of Science Podcast | Department of Conservation | |
| 37 | 54 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 38 | 12 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 39 | 97 |  | Let's Learn Everything! | Maximum Fun | |
| 40 | 61 |  | You Are Not So Smart | You Are Not So Smart | |
| 41 | 23 |  | Overheard at National Geographic | National Geographic | |
| 42 | 14 |  | Discovery | BBC World Service | |
| 43 | 142 |  | The Couples Therapist Couch | Shane Birkel | |
| 44 | — | W | Wild Tales | Nature Podcast | National Trust | |
| 45 | 6 |  | The Episodic Table of Elements | T. R. Appleton | |
| 46 | 6 |  | The Nature Of with Willow Defebaugh | Atmos | |
| 47 | 150 |  | Somewhere in the Skies | SpectreVision Radio | |
| 48 | 121 |  | The Behavioral Design Podcast | Samuel Salzer and Aline Holzwarth | |
| 49 | 129 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 50 | — |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 51 | — |  | The Multiverse Employee Handbook | Robb Corrigan | |
| 52 | — |  | Unknowns | OER Project | |
| 53 | — | S | Strange by Nature Podcast | Strange by Nature | |
| 54 | — | N | New Scientist Weekly | New Scientist | |
| 55 | — |  | The Pulse | WHYY | |
| 56 | — | O | Ocean Science Radio | Ocean Science Radio | |
| 57 | — |  | The Hamilton Morris Podcast | Hamilton Morris | |
| 58 | — |  | The VPZD Show | Drs. Vinay Prasad & Zubin Damania | |
| 59 | — | I | International Law | Yale Law School | |
| 60 | — | S | Sciencekari | Lallantop Baaja | |
| 61 | 29 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 62 | 84 |  | The Science of Birds | Ivan Phillipsen | |
| 63 | 14 |  | Babbage from The Economist | The Economist | |
| 64 | 37 | W | What's Next from AgResearch | AgResearch | |
| 65 | 23 |  | The Science Show | ABC | |
| 66 | 36 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 67 | 16 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 68 | 24 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 69 | — |  | Navigating Neuropsychology | John Bellone & Ryan Van Patten - NavNeuro | |
| 70 | 37 |  | Accidental Gods | Accidental Gods | |
| 71 | — |  | Beat Your Genes Podcast | BeatYourGenes | |
| 72 | 27 | B | Blazing the Trail | University of Sydney / Australian Museum / Break Thru Films | |
| 73 | — |  | Battery Generation | Patrick von Rosen, Lennart Peters | |
| 74 | 36 | B | blurbs | Matt Ross | |
| 75 | 32 | T | The New Dermatologist | 11-29 Media | |
| 76 | 6 | W | Why? with Emma Kennedy | Podmasters | |
| 77 | 42 |  | Geology Bites | Oliver Strimpel | |
| 78 | 42 |  | TED Talks Science and Medicine | TED | |
| 79 | — |  | That's Just Wild | Fresh Air | |
| 80 | 17 |  | Dr Karl Podcast | triplej | |
| 81 | 44 |  | Bedrock: Earth's Earliest History | Dylan Wilmeth | |
| 82 | — | N | Nature Fix | National Trust | |
| 83 | 41 |  | The Joy of x | Steven Strogatz and Quanta Magazine | |
| 84 | 44 | T | The Challenge of Behaviour Change | Dr Emma L Davies | |
| 85 | 41 | N | New Books in Anthropology | New Books Network | |
| 86 | 40 | R | RESET with Luke Mathers | lukemathers | |
| 87 | 30 |  | The Jim Rutt Show | The Jim Rutt Show | |
| 88 | 40 |  | The Rumen Room Podcasts | cwestwood | |
| 89 | 90 | C | Chris Skinner's Countryside Podcasts | High Ash Farm | |
| 90 | 14 | S | Shirtloads of Science | Dr Karl Kruszelnicki | |
| 91 | 38 |  | Origin Stories | The Leakey Foundation | |
| 92 | 32 |  | The Common Descent Podcast | Common Descent | |
| 93 | 39 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 94 | — |  | Ask a Spaceman! | Paul M. Sutter | |
| 95 | 39 |  | Eons: Surviving Deep Time | PBS | |
| 96 | — |  | Scotland Outdoors | BBC Radio Scotland | |
| 97 | 33 |  | The Michael Shermer Show | Michael Shermer | |
| 98 | 38 |  | Science Quickly | Scientific American | |
| 99 | 32 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 100 | 45 | T | The Science Of… | RNZ | |
