| 1 | — |  | The Rest Is Science | Goalhanger | |
| 2 | 1 |  | Making Sense with Sam Harris | Sam Harris | |
| 3 | 6 |  | Radiolab | WNYC Studios | |
| 4 | 2 |  | Ologies with Alie Ward | Alie Ward | |
| 5 | 1 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 6 | 5 |  | All In The Mind | ABC | |
| 7 | 2 |  | Science Vs | Spotify Studios | |
| 8 | 4 |  | Boring History for Sleep | Velvet | |
| 9 | 66 |  | CrowdScience | BBC World Service | |
| 10 | 4 |  | BBC Inside Science | BBC Radio 4 | |
| 11 | 3 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 12 | 2 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 13 | 33 |  | Life Without | BBC Radio 4 | |
| 14 | 19 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 15 | 8 |  | More or Less | BBC Radio 4 | |
| 16 | 8 |  | Science Weekly | The Guardian | |
| 17 | 77 |  | The world, the universe and us | New Scientist | |
| 18 | 5 |  | Curious Cases | BBC Radio 4 | |
| 19 | 1 |  | Unexplainable | Vox | |
| 20 | 1 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 21 | 5 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 22 | 5 |  | Science Friction | ABC | |
| 23 | 5 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 24 | 1 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 25 | 39 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 26 | 35 |  | Astrum Space | Astrum | |
| 27 | 12 |  | Unexpected Elements | BBC World Service | |
| 28 | 8 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 29 | 61 |  | Get Birding | Peanut & Crumb | |
| 30 | 54 |  | Blurry Creatures | Blurry Creatures | |
| 31 | 16 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 32 | 17 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 33 | 11 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 34 | 23 |  | That's Absurd Please Elaborate | Trace Elements Media | |
| 35 | 9 |  | Our Changing World | RNZ | |
| 36 | 50 |  | The Science Show | ABC | |
| 37 | 10 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 38 | 14 |  | The Life Scientific | BBC Radio 4 | |
| 39 | 9 |  | Ancient Aliens | PodcastOne | |
| 40 | — |  | CrowdScience | BBC World Service | |
| 41 | 28 |  | The Quanta Podcast | Quanta Magazine | |
| 42 | 17 |  | Kākāpō Files II | RNZ | |
| 43 | 5 |  | Universe Today Podcast | Fraser Cain | |
| 44 | 16 |  | Discovery | BBC World Service | |
| 45 | 31 |  | The Psychology Podcast | iHeartPodcasts | |
| 46 | 2 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 47 | 7 |  | The Climate Question | BBC World Service | |
| 48 | 16 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 49 | 20 |  | Operation Night Cat | New Hampshire Public Radio | |
| 50 | — |  | The Weirdest Thing I Learned This Week | Popular Science | |
| 51 | 13 |  | Dr Karl Podcast | triplej | |
| 52 | 11 |  | Science Friday | Science Friday and WNYC Studios | |
| 53 | 34 |  | Science with Sabine | Sabine Hossenfelder | |
| 54 | — |  | Google DeepMind: The Podcast | Hannah Fry | |
| 55 | 80 |  | DOC Sounds of Science Podcast | Department of Conservation | |
| 56 | — |  | Slow Radio | BBC Radio 3 | |
| 57 | 113 |  | Scott Carney Investigates | Scott Carney | |
| 58 | — |  | Living Planet | DW | |
| 59 | — |  | OVERSHOOT | Shrink Toward Abundance | Population Balance | |
| 60 | 7 |  | Speaking of Psychology | American Psychological Association | |
| 61 | 12 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 62 | 17 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 63 | — |  | Shirtloads of Science | Dr Karl Kruszelnicki | |
| 64 | 17 |  | EcoFarm Aotearoa | Ewan Campbell with co-host Stephen Brunton | |
| 65 | — |  | Open Country | BBC Radio 4 | |
| 66 | 31 |  | Safe to Drink | NHPR | |
| 67 | — |  | Brain Inspired | Paul Middlebrooks | |
| 68 | 15 |  | The Science of Birds | Ivan Phillipsen | |
| 69 | — |  | Naked Neuroscience, from the Naked Scientists | James Tytko | |
| 70 | — |  | Brain Science with Ginger Campbell, MD: Neuroscience for Everyone | Ginger Campbell, MD | |
| 71 | — |  | Feed for Thought | Pioneer Brand Products NZ | |
| 72 | — |  | Why? with Emma Kennedy | Podmasters | |
| 73 | — |  | NANNcast | National Association of Neonatal Nurses | |
| 74 | 66 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 75 | 44 |  | Planetary Radio: Space Exploration, Astronomy and Science | The Planetary Society | |
| 76 | 2 |  | Bigfoot Society | Jeremiah Byron | |
| 77 | 43 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 78 | 36 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 79 | 29 |  | Let's Learn Everything! | Maximum Fun | |
| 80 | 37 |  | Skeptoid | Brian Dunning | |
| 81 | 8 |  | Nature Podcast | Springer Nature Limited | |
| 82 | 74 |  | People Helping Nature Podcast | Conservation Amplified | |
| 83 | 39 |  | Scotland Outdoors | BBC Radio Scotland | |
| 84 | 47 |  | TED Talks Science and Medicine | TED | |
| 85 | — |  | Physics World Weekly Podcast | Physics World | |
| 86 | 26 |  | Babbage from The Economist | The Economist | |
| 87 | 11 |  | Skeptics with a K | Skeptic Media Limited | |
| 88 | 81 |  | Better Brain Fitness (a Brainjo Production) | Josh Turknett, MD | |
| 89 | — |  | You Are Not So Smart | You Are Not So Smart | |
| 90 | — |  | The Ballot’s Bloody Rigged - A podcast by the Fiordland Wapiti Foundation | roywapiti | |
| 91 | 40 |  | The Rumen Room Podcasts | cwestwood | |
| 92 | 1 |  | The End Of The World with Josh Clark | iHeartPodcasts | |
| 93 | 16 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 94 | 29 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 95 | 16 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 96 | 24 |  | Short Wave | NPR | |
| 97 | 45 |  | We're not getting any younger... yet. | The Buck Institute | |
| 98 | — |  | The New Quantum Era - innovation in quantum computing, science and technology | Sebastian Hassinger | |
| 99 | — |  | Medscape InDiscussion: Acute Myeloid Leukemia | Medscape | |
| 100 | 41 |  | The Plodcast | Our Media | |
