| 1 | — |  | Curious Cases | BBC Radio 4 | |
| 2 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 3 | 7 |  | Science Friction | ABC | |
| 4 | 1 |  | BBC Inside Science | BBC Radio 4 | |
| 5 | 1 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 6 | 5 |  | Making Sense with Sam Harris | Sam Harris | |
| 7 | 4 |  | Ologies with Alie Ward | Alie Ward | |
| 8 | 4 |  | More or Less | BBC Radio 4 | |
| 9 | 2 |  | Science Weekly | The Guardian | |
| 10 | 3 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 11 | 15 |  | All In The Mind | ABC | |
| 12 | 4 |  | Radiolab | WNYC Studios | |
| 13 | 4 |  | Science Vs | Spotify Studios | |
| 14 | 13 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 15 | 1 | B | Boring History for Sleep | Velvet | |
| 16 | 4 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 17 | 8 |  | The Nature Of with Willow Defebaugh | Atmos | |
| 18 | 69 |  | Science In Action | BBC World Service | |
| 19 | 10 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 20 | 3 |  | The world, the universe and us | New Scientist | |
| 21 | 11 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 22 | 24 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 23 | 4 |  | Alive Again | iHeartPodcasts | |
| 24 | 49 | D | DOC Sounds of Science Podcast | Department of Conservation | |
| 25 | 23 |  | The Psychology Podcast | iHeartPodcasts | |
| 26 | 103 |  | Invisibilia | NPR | |
| 27 | 5 | T | Talking of Science | Helen | |
| 28 | 9 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 29 | 13 |  | Unexplainable | Vox | |
| 30 | 27 |  | The Science of Birds | Ivan Phillipsen | |
| 31 | 11 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 32 | 17 | O | Our Changing World | RNZ | |
| 33 | 32 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 34 | 138 |  | Skeptics with a K | Skeptic Media Limited | |
| 35 | 17 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 36 | 36 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 37 | 13 | O | Open Country | BBC Radio 4 | |
| 38 | 131 |  | Nature Podcast | Springer Nature Limited | |
| 39 | 5 |  | Dr Karl Podcast | triplej | |
| 40 | 2 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 41 | 104 |  | Houston We Have a Podcast | National Aeronautics and Space Administration (NASA) | |
| 42 | 136 |  | Unexpected Elements | BBC World Service | |
| 43 | 22 |  | Kindred | Kate Coffin | |
| 44 | 10 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 45 | 15 |  | The Life Scientific | BBC Radio 4 | |
| 46 | 137 | F | Fight for the Wild | RNZ | |
| 47 | 144 | T | The Artificial Human | BBC Radio 4 | |
| 48 | — |  | Oceans: Life Under Water | Crowd Network | Greenpeace UK | |
| 49 | — |  | Astrum Space | Astrum | |
| 50 | — |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 51 | — |  | The Black Vault Radio w/ John Greenewald, Jr. | John Greenewald, Jr. | |
| 52 | — |  | People Helping Nature Podcast | Conservation Amplified | |
| 53 | 14 |  | Skeptoid | Brian Dunning | |
| 54 | — | B | Be Reasonable | Merseyside Skeptics Society | |
| 55 | — | A | American Journal of Psychiatry Audio | American Journal of Psychiatry | |
| 56 | — | B | Biophilic Solutions: Nature Has the Answers | Serenbe Media Network | |
| 57 | — | H | How To Protect The Ocean | Andrew Lewin | |
| 58 | — | A | ACEP Frontline - Emergency Medicine | Ryan A. Stanton MD, FACEP | |
| 59 | 19 |  | Discovery | BBC World Service | |
| 60 | 2 |  | Universe Today Podcast | Fraser Cain | |
| 61 | 26 |  | The Quanta Podcast | Quanta Magazine | |
| 62 | 26 | G | Goodfellow Unit | The Goodfellow Unit (University of Auckland) | |
| 63 | 35 | C | Chris Skinner's Countryside Podcasts | High Ash Farm | |
| 64 | 23 |  | Science Friday | Science Friday and WNYC Studios | |
| 65 | 50 | S | Science Powering Tomorrow | GNS Science | |
| 66 | 37 | F | Feed for Thought | Pioneer Brand Products NZ | |
| 67 | 66 |  | Short Wave | NPR | |
| 68 | 35 |  | Cities 1.5 | University of Toronto Press | |
| 69 | — | W | What The Duck?! | ABC | |
| 70 | 9 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 71 | 38 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 72 | 30 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 73 | 35 | N | New Scientist Weekly | New Scientist | |
| 74 | 65 |  | Ask a Spaceman! | Paul M. Sutter | |
| 75 | 30 |  | CrowdScience | BBC World Service | |
| 76 | 108 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 77 | 30 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 78 | 35 |  | Your Brain On | Drs. Ayesha and Dean Sherzai | |
| 79 | 34 | T | The New Zealand General Practice Podcast | Dr Jo Scott-Jones | |
| 80 | 49 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 81 | 17 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 82 | 26 |  | Scotland Outdoors | BBC Radio Scotland | |
| 83 | 32 |  | THE CLUB OF ROME PODCAST | The Club of Rome | |
| 84 | 40 | T | The Seed Pod. | Sian Crowley | |
| 85 | — |  | Hard Truths | Ashton Forbes | |
| 86 | 12 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 87 | — |  | This Week in Neuroscience | Vincent Racaniello | |
| 88 | — | T | The Planet Earth Podcast | BBC Radio 4 | |
| 89 | 39 |  | Constant Wonder | BYUradio | |
| 90 | 38 | S | Soil Health Labs | Soil Health Labs | |
| 91 | 38 |  | The MapScaping Podcast - GIS, Geospatial, Remote Sensing, earth observation and digital geography | MapScaping | |
| 92 | — |  | Species | mackenmurphy.org | |
| 93 | — | T | The Vet Record Podcast | Vet Record Podcast | |
| 94 | — | T | Think Deep! | Deep-Ocean Stewardship Initiative (DOSI) | |
| 95 | — | K | KALIFORNISCHE TERRASSEN 🌞🌴 | Systemischer Club | |
| 96 | — | R | regenagri podcast | regenagri | |
| 97 | — | M | Mind Your Work | Jose Espinoza; Nicholas Bremner | |
| 98 | 38 |  | Head Shepherd | Mark Ferguson | |
| 99 | 40 |  | The Climate Question | BBC World Service | |
| 100 | 34 |  | Science & Futurism with Isaac Arthur | Isaac Arthur | |
