| 1 | — |  | The Rest Is Science | Goalhanger | |
| 2 | — |  | Get Birding | Peanut & Crumb | |
| 3 | 2 |  | Making Sense with Sam Harris | Sam Harris | |
| 4 | 1 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 5 | 1 |  | Science Weekly | The Guardian | |
| 6 | 3 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 7 | 1 |  | Ologies with Alie Ward | Alie Ward | |
| 8 | 17 |  | BBC Inside Science | BBC Radio 4 | |
| 9 | 2 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 10 | 4 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 11 | — | B | Boring History for Sleep | Velvet | |
| 12 | 10 |  | Unexplainable | Vox | |
| 13 | 1 | F | Futureproof with Jonathan McCrea | Newstalk | |
| 14 | 5 |  | Discovery | BBC World Service | |
| 15 | 5 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 16 | 3 |  | Radiolab | WNYC Studios | |
| 17 | 14 |  | CrowdScience | BBC World Service | |
| 18 | 3 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 19 | 11 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 20 | 4 |  | Science Vs | Spotify Studios | |
| 21 | 4 |  | Astrum Space | Astrum | |
| 22 | 8 |  | Curious Cases | BBC Radio 4 | |
| 23 | 3 |  | More or Less | BBC Radio 4 | |
| 24 | 15 |  | That UFO Podcast | That UFO Podcast | |
| 25 | 24 |  | Planet Em | Emily McDonald | |
| 26 | 2 |  | The Life Scientific | BBC Radio 4 | |
| 27 | 1 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 28 | 41 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 29 | 98 |  | The Quanta Podcast | Quanta Magazine | |
| 30 | 3 | C | CountryWide | RTÉ Radio 1 | |
| 31 | 8 | I | In Your Nature | By BirdWatch Ireland | |
| 32 | 80 |  | That's Absurd Please Elaborate | Trace Elements Media | |
| 33 | 18 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 34 | 8 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 35 | 8 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 36 | 7 |  | The Plodcast | Our Media | |
| 37 | 3 |  | The world, the universe and us | New Scientist | |
| 38 | 151 |  | The Nature Of with Willow Defebaugh | Atmos | |
| 39 | 7 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 40 | 4 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 41 | 25 |  | Babbage from The Economist | The Economist | |
| 42 | 29 |  | Universe Today Podcast | Fraser Cain | |
| 43 | 9 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 44 | 9 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 45 | 27 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 46 | — | M | Mysteries of the Universe | TheTuringApp.Com | |
| 47 | — |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 48 | 31 | T | The Artificial Human | BBC Radio 4 | |
| 49 | — | B | Blood Podcast | American Society of Hematology | |
| 50 | 13 |  | The Psychology Podcast | iHeartPodcasts | |
| 51 | 23 |  | Science Friday | Science Friday and WNYC Studios | |
| 52 | 37 |  | Scotland Outdoors | BBC Radio Scotland | |
| 53 | 6 |  | Great Mysteries of Physics | The Conversation | |
| 54 | 16 |  | Planetary Radio: Space Exploration, Astronomy and Science | The Planetary Society | |
| 55 | 10 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 56 | 13 | T | The Signpost Series | Teagasc | |
| 57 | 9 | R | Rambling About Rivers | The Rivers Trust | |
| 58 | 127 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 59 | 18 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 60 | 58 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 61 | 25 |  | Nature Podcast | Springer Nature Limited | |
| 62 | 5 |  | The Common Descent Podcast | Common Descent | |
| 63 | — |  | Rare Earth | BBC Radio 4 | |
| 64 | 46 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 65 | 9 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 66 | 14 | F | Farming for Nature | Farming for Nature | |
| 67 | 23 |  | Speaking of Psychology | American Psychological Association | |
| 68 | — | C | Congress of Neurological Surgeons Podcasts | Congress of Neurological Surgeons | |
| 69 | 38 |  | Unexpected Elements | BBC World Service | |
| 70 | — | T | The Big Disaster: The Big Burn | LAist Studios | |
| 71 | 2 | F | Farming Today | BBC Radio 4 | |
| 72 | 74 |  | Instant Genius | Our Media | |
| 73 | — |  | SEA: Space Exploration & Astronomy | SEA | |
| 74 | 21 | T | The QP Diaries, by AssureBio | Dal Pawar | |
| 75 | 21 | A | A Neuroscientist Explains | The Guardian | |
| 76 | — | N | Neurosurgery Podcast | Neurosurgery Podcast | |
| 77 | 22 |  | Heartbreak: A Personal and Scientific Journey | Pushkin Industries | |
| 78 | 22 |  | The Habitat | Gimlet | |
| 79 | 22 |  | Extraterrestrial | Parcast Network | |
| 80 | 22 | S | Shots of Science Vs | Spotify Studios | |
| 81 | 22 | T | The FND Society Podcast | FND Society | |
| 82 | 22 | P | Planeta Verde | RFI Brasil | |
| 83 | 22 | S | Saúde em dia | RFI Brasil | |
| 84 | 22 | R | Resposta Imune | Folha de S.Paulo | |
| 85 | 22 | M | Mentes Brilhantes | Observador | |
| 86 | 22 | P | Physical Activity Researcher | paresearcher | |
| 87 | 22 |  | Brady Heywood Podcast | Sean Brady | |
| 88 | 37 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 89 | 2 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 90 | 77 |  | Science Magazine Podcast | Science Magazine | |
| 91 | 3 |  | Short Wave | NPR | |
| 92 | 66 |  | Mythfits | Pionaire Podcasting | |
| 93 | 21 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 94 | 26 |  | Science In Action | BBC World Service | |
| 95 | 2 |  | UAP Files Podcast | UAP Files Podcast | |
| 96 | 18 |  | Rewilding the World with Ben Goldsmith | Ben Goldsmith | |
| 97 | 16 | N | Nullius in Verba | Smriti Mehta and Daniël Lakens | |
| 98 | 15 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 99 | 12 |  | Physics World Weekly Podcast | Physics World | |
| 100 | 24 |  | Dr Karl Podcast | triplej | |
