| 1 | — |  | The Rest Is Science | Goalhanger | |
| 2 | 2 |  | Ologies with Alie Ward | Alie Ward | |
| 3 | — |  | Radiolab | WNYC Studios | |
| 4 | 4 |  | Boring History for Sleep | Velvet | |
| 5 | 1 |  | All In The Mind | ABC | |
| 6 | 4 |  | Making Sense with Sam Harris | Sam Harris | |
| 7 | 7 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 8 | 10 |  | Curious Cases | BBC Radio 4 | |
| 9 | 2 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 10 | 12 |  | Science Friction | ABC | |
| 11 | 1 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 12 | 7 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 13 | — |  | Life Without | BBC Radio 4 | |
| 14 | 7 |  | Science Vs | Spotify Studios | |
| 15 | 6 |  | CrowdScience | BBC World Service | |
| 16 | 38 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 17 | 2 |  | More or Less | BBC Radio 4 | |
| 18 | 13 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 19 | 9 |  | BBC Inside Science | BBC Radio 4 | |
| 20 | 8 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 21 | 5 |  | Science Weekly | The Guardian | |
| 22 | 5 |  | The world, the universe and us | New Scientist | |
| 23 | 4 |  | Unexplainable | Vox | |
| 24 | 13 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 25 | 160 |  | The Common Descent Podcast | Common Descent | |
| 26 | 130 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 27 | 2 |  | Get Birding | Peanut & Crumb | |
| 28 | 4 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 29 | 9 |  | The Life Scientific | BBC Radio 4 | |
| 30 | 53 |  | Scotland Outdoors | BBC Radio Scotland | |
| 31 | 2 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 32 | 12 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 33 | 33 |  | Safe to Drink | NHPR | |
| 34 | 26 |  | Speaking of Psychology | American Psychological Association | |
| 35 | 29 |  | EcoFarm Aotearoa | Ewan Campbell with co-host Stephen Brunton | |
| 36 | 21 |  | Scott Carney Investigates | Scott Carney | |
| 37 | — |  | Wild Tales | Nature Podcast | National Trust | |
| 38 | — |  | Robinson's Podcast | Robinson Erhardt | |
| 39 | 29 |  | The Science of Birds | Ivan Phillipsen | |
| 40 | 5 |  | Our Changing World | RNZ | |
| 41 | — |  | The Wild with Chris Morgan | KUOW News and Information | |
| 42 | 1 |  | The Quanta Podcast | Quanta Magazine | |
| 43 | — |  | A Voyage to Antarctica | UKAHT | |
| 44 | 21 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 45 | 18 |  | Unexpected Elements | BBC World Service | |
| 46 | — |  | Terrible Lizards | Iszi Lawrence and David Hone | |
| 47 | 79 |  | ologies with alie ward | ologies with alie ward | |
| 48 | — |  | A Life More Wild | Canopy & Stars | |
| 49 | — |  | Ask a Spaceman! | Paul M. Sutter | |
| 50 | 8 |  | Kākāpō Files II | RNZ | |
| 51 | 148 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 52 | 1 |  | Dr Karl Podcast | triplej | |
| 53 | — |  | The Futurists | Brett King, JP Nicols, Jason Henrichs | |
| 54 | 33 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 55 | — |  | Nature Sounds Tasmania | Nature Sounds Tasmania | |
| 56 | — |  | Forschung aktuell | Deutschlandfunk | |
| 57 | 8 |  | Operation Night Cat | New Hampshire Public Radio | |
| 58 | 33 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 59 | — |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 60 | 30 |  | Blurry Creatures | Blurry Creatures | |
| 61 | — |  | SciShow Tangents | Complexly | |
| 62 | — |  | This Week in Space (Audio) | TWiT | |
| 63 | — |  | Bigfoot Crossroads | Matt Knapp | |
| 64 | — |  | Nocturnal Worlds | Audiocraft | |
| 65 | 41 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 66 | — |  | The Knepp Wilding Podcast | Knepp.co.uk | |
| 67 | — |  | The Social-Engineer Podcast | Social-Engineer, LLC | |
| 68 | — |  | The Circle We Keep | The Aotearoa Circle | |
| 69 | — |  | Omnivore | Food Technology Magazine | |
| 70 | — |  | Ultramarine: the science of our oceans and waterways | ConnectSci | |
| 71 | — |  | playing god? | Johns Hopkins Berman Institute of Bioethics | |
| 72 | — |  | The Skin Flint Podcast | elearningvet | |
| 73 | — |  | Mind Your Work | Jose Espinoza; Nicholas Bremner | |
| 74 | — |  | 食と農のぐるぺこラジオ | 食と農のぐるぺこラジオ | |
| 75 | — |  | Branch Out | Botanic Gardens of Sydney | |
| 76 | 32 |  | Discovery | BBC World Service | |
| 77 | 43 |  | That's Absurd Please Elaborate | Trace Elements Media | |
| 78 | 7 |  | Physics World Weekly Podcast | Physics World | |
| 79 | 1 |  | Skeptoid | Brian Dunning | |
| 80 | 2 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 81 | 34 |  | The Climate Question | BBC World Service | |
| 82 | 36 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 83 | 81 |  | Bedrock: Earth's Earliest History | Dylan Wilmeth | |
| 84 | 21 |  | Shirtloads of Science | Dr Karl Kruszelnicki | |
| 85 | 49 |  | The Science Show | ABC | |
| 86 | — |  | Breaking Math Podcast | Autumn Phaneuf & Noah Giansiracusa | |
| 87 | 44 |  | Space Nuts: Astronomy Insights & Cosmic Discoveries | Professor Fred Watson and Andrew Dunkley | |
| 88 | 9 |  | Let's Learn Everything! | Maximum Fun | |
| 89 | 24 |  | Origin Stories | The Leakey Foundation | |
| 90 | — |  | Regenerative Agriculture: Buzzwords & Bullsh*t | The RegenAgroEcoBioScientologists | |
| 91 | 2 |  | You Are Not So Smart | You Are Not So Smart | |
| 92 | 11 |  | Nature Podcast | Springer Nature Limited | |
| 93 | 50 |  | Universe Today Podcast | Fraser Cain | |
| 94 | — |  | サイエントーク | 研究者レンとイギリス駐在員エマ | |
| 95 | 43 |  | Science Friday | Science Friday and WNYC Studios | |
| 96 | 29 |  | The Michael Shermer Show | Michael Shermer | |
| 97 | — |  | Ideas in Development | Ideas in Development | |
| 98 | — |  | World Without Cows Podcast | Planet of Plenty | |
| 99 | — |  | Let's Talk Children and Child Development | Lakeithon | |
| 100 | — |  | Talking Transfusion: The Transfusion Evidence Round-Up Podcast | ISBT | Int. Society of Blood Transfusion | |
