| 1 | — | B | Bird Songs with Seán Ronayne | RTÉ lyric fm | |
| 2 | — |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 3 | 8 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 4 | 11 |  | More or Less | BBC Radio 4 | |
| 5 | 2 | F | Futureproof with Jonathan McCrea | Newstalk | |
| 6 | 2 |  | Radiolab | WNYC Studios | |
| 7 | 6 |  | BBC Inside Science | BBC Radio 4 | |
| 8 | 13 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 9 | 4 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 10 | 4 |  | Science Weekly | The Guardian | |
| 11 | 7 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 12 | 5 |  | Curious Cases | BBC Radio 4 | |
| 13 | 42 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 14 | 50 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 15 | 6 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 16 | 8 |  | Making Sense with Sam Harris | Sam Harris | |
| 17 | 7 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 18 | 4 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 19 | 7 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 20 | 6 |  | Podcast UFO | Martin Willis | |
| 21 | 5 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 22 | 9 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 23 | 6 | C | CountryWide | RTÉ Radio 1 | |
| 24 | 27 |  | Ologies with Alie Ward | Alie Ward | |
| 25 | 6 |  | Science Vs | Spotify Studios | |
| 26 | 48 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 27 | 50 |  | That UFO Podcast | That UFO Podcast | |
| 28 | 29 |  | You Are Not So Smart | You Are Not So Smart | |
| 29 | 34 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 30 | 24 |  | The world, the universe and us | New Scientist | |
| 31 | 11 |  | Unexplainable | Vox | |
| 32 | 56 |  | Naturebang | BBC Radio 4 | |
| 33 | 91 | T | The Artificial Human | BBC Radio 4 | |
| 34 | 89 |  | Speaking of Psychology | American Psychological Association | |
| 35 | 13 |  | Accidental Gods | Accidental Gods | |
| 36 | 76 |  | ZEIT WISSEN. Woher weißt Du das? | DIE ZEIT | |
| 37 | 94 |  | Curiosity Weekly | Discovery | |
| 38 | 119 |  | This Week in Virology | Vincent Racaniello | |
| 39 | 16 |  | Why Do We Do That? | BBC Radio 4 | |
| 40 | — | 1 | 100 Campaigns that Changed the World | Steve Tibbett | |
| 41 | — | T | The Perception & Action Podcast | Rob Gray | |
| 42 | — | D | Directionally Correct, A People Analytics Podcast with Cole & Scott | Directionally Correct, A People Analytics Podcast with Cole & Scott | |
| 43 | — | N | National Geographic Magazine | Radio Eye | |
| 44 | — |  | Lost Women of Science | Lost Women of Science | |
| 45 | — |  | The MapScaping Podcast - GIS, Geospatial, Remote Sensing, earth observation and digital geography | MapScaping | |
| 46 | — |  | HyperThetical | FilmNation Entertainment | |
| 47 | — |  | This Week in Parasitism | Vincent Racaniello | |
| 48 | — |  | The Answer Is Transaction Costs | Michael Munger | |
| 49 | — | S | Stanford Computational Antitrust | Thibault Schrepel | |
| 50 | 26 |  | Robert Sapolsky | Father-Offspring Interviews | Robert Sapolsky | |
| 51 | 21 |  | Discovery | BBC World Service | |
| 52 | 27 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 53 | 26 |  | All In The Mind | ABC | |
| 54 | 13 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 55 | 26 |  | Science Friday | Science Friday and WNYC Studios | |
| 56 | 24 |  | Robinson's Podcast | Robinson Erhardt | |
| 57 | 29 |  | Unexpected Elements | BBC World Service | |
| 58 | 6 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 59 | 26 |  | The Science of Birds | Ivan Phillipsen | |
| 60 | 1 |  | Science In Action | BBC World Service | |
| 61 | 18 |  | Regenerative Agriculture Podcast | John Kempf | |
| 62 | 28 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 63 | 27 |  | Let's Learn Everything! | Maximum Fun | |
| 64 | 26 |  | SciShow Tangents | Complexly | |
| 65 | 30 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 66 | 26 | T | The Great Cholesterol Deception--The Story Behind | chiki&bella | |
| 67 | 30 | N | New Books in Environmental Studies | Marshall Poe | |
| 68 | 26 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 69 | 30 |  | The Uptime Wind Energy Podcast | Allen Hall, Rosemary Barnes, Joel Saxum & Yolanda Padron | |
| 70 | 29 |  | Just the Zoo of Us | Ellen & Christian Weatherford | |
| 71 | 27 | N | Nie z tej Ziemi | Radio Katowice | Radio Katowice S.A. | |
| 72 | 27 |  | My Big TOE by Thomas Campbell - Unifying Mind and Matter | Thomas Campbell together with the MBT Volunteers | |
| 73 | 27 |  | The LIUniverse with Dr. Charles Liu | theliuniverse | |
| 74 | 27 | T | The Structural Engineering Podcast | Zach and Max | |
| 75 | 27 |  | Species | mackenmurphy.org | |
| 76 | 27 | C | Camping on the wild side | Steve Walker | |
| 77 | 27 | ژ | ژرفا - Zharfa | Alireza Payandeh | |
| 78 | — |  | The Science of Everything Podcast | James Fodor | |
| 79 | 23 |  | CrowdScience | BBC World Service | |
| 80 | 27 | N | Naturefile | RTÉ lyric fm | |
| 81 | 73 |  | Your Brain On | Drs. Ayesha and Dean Sherzai | |
| 82 | 21 |  | Overheard at National Geographic | National Geographic | |
| 83 | 25 | C | Classroom Psychology | Cora Sargeant | |
| 84 | 24 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 85 | 23 |  | The Wild with Chris Morgan | KUOW News and Information | |
| 86 | 4 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 87 | 22 | T | The We Society | AcSS | |
| 88 | 20 | B | Best Medicine | BBC Radio 4 | |
| 89 | 21 | F | Farming for Nature | Farming for Nature | |
| 90 | 24 |  | How We're Wired | The Bertarelli Foundation | |
| 91 | 22 |  | EverydaySpy Podcast | Andrew Bustamante | |
| 92 | 22 |  | The Gene Gap: Common threads | The Guardian | |
| 93 | 22 |  | The Eco Well podcast | Jen@theecowell | |
| 94 | 22 | O | Orthodontic Products Podcast | Orthodontic Products | |
| 95 | 22 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 96 | 20 | I | In Your Nature | By BirdWatch Ireland | |
| 97 | 61 |  | Somewhere in the Skies | SpectreVision Radio | |
| 98 | 19 |  | Professor Brian Cox Live Q and A Podcast | The Cosmic Shambles Network | |
| 99 | 50 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 100 | 26 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
