| 1 | 2 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 2 | 2 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 3 | 2 |  | Curious Cases | BBC Radio 4 | |
| 4 | 9 |  | Science Weekly | The Guardian | |
| 5 | 6 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 6 | 9 | B | Boring History for Sleep | Velvet | |
| 7 | 1 |  | Ologies with Alie Ward | Alie Ward | |
| 8 | 7 |  | Making Sense with Sam Harris | Sam Harris | |
| 9 | 7 |  | Radiolab | WNYC Studios | |
| 10 | 61 |  | Origin Stories | The Leakey Foundation | |
| 11 | 2 |  | Unexplainable | Vox | |
| 12 | 5 |  | More or Less | BBC Radio 4 | |
| 13 | 1 |  | Re:Energise from ESB | ESB | |
| 14 | 6 | F | Futureproof with Jonathan McCrea | Newstalk | |
| 15 | 1 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 16 | 26 |  | The Climate Question | BBC World Service | |
| 17 | 169 |  | Dr Karl Podcast | triplej | |
| 18 | 4 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 19 | 9 |  | Babbage from The Economist | The Economist | |
| 20 | 5 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 21 | 3 |  | Cool Worlds Podcast | coolworldslab | |
| 22 | 81 |  | Astrum Space | Astrum | |
| 23 | 50 | L | Love The Bees Podcast | Yvonne Johnston | |
| 24 | 6 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 25 | 68 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 26 | 71 |  | Robinson's Podcast | Robinson Erhardt | |
| 27 | 71 | A | A Neuroscientist Explains | The Guardian | |
| 28 | 12 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 29 | 159 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 30 | 89 |  | The Numberphile Podcast | Brady Haran | |
| 31 | 99 |  | Clearer Thinking with Spencer Greenberg | Spencer Greenberg | |
| 32 | 129 |  | Scotland Outdoors | BBC Radio Scotland | |
| 33 | 120 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 34 | 123 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 35 | 155 |  | Science Vs | Spotify Studios | |
| 36 | — |  | Drilled | Pushkin Industries | |
| 37 | — |  | Emergency Medicine Board Bombs | EM Board Bombs | |
| 38 | — | P | Palaeocast | Palaeocast | |
| 39 | — |  | The Market Gardener Podcast | JM Fortier | |
| 40 | — | L | Lung Cancer Update | Dr. Neil Love | |
| 41 | — |  | Your Brain On Climate | Dave Powell | |
| 42 | — | T | The Clean Energy Show | James Whittingham and Brian Stockton | |
| 43 | — | N | Naked Neuroscience, from the Naked Scientists | James Tytko | |
| 44 | — |  | Ask MIT Climate | MIT Climate Project | |
| 45 | — |  | The Gene Gap: Common threads | The Guardian | |
| 46 | — |  | Horizonte de Eventos | Sérgio Sacani Sancevero | |
| 47 | 23 |  | Speaking of Psychology | American Psychological Association | |
| 48 | 28 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 49 | 32 | N | Naturefile | RTÉ lyric fm | |
| 50 | 31 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 51 | 49 |  | BBC Inside Science | BBC Radio 4 | |
| 52 | 31 |  | That's Just Wild | Fresh Air | |
| 53 | 30 |  | Podcast UFO | Martin Willis | |
| 54 | 27 |  | Short Wave | NPR | |
| 55 | 25 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 56 | 30 |  | Discovery | BBC World Service | |
| 57 | 72 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 58 | 27 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 59 | 97 |  | Overheard at National Geographic | National Geographic | |
| 60 | 32 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 61 | 124 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 62 | 27 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 63 | 16 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 64 | 32 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 65 | 113 |  | Choiceology with Katy Milkman | Charles Schwab | |
| 66 | 37 |  | Rewilding the World with Ben Goldsmith | Ben Goldsmith | |
| 67 | 34 |  | Naturebang | BBC Radio 4 | |
| 68 | — |  | Unbiased Science | @unbiasedscipod | |
| 69 | 24 | I | In Your Nature | By BirdWatch Ireland | |
| 70 | — |  | Science Magazine Podcast | Science Magazine | |
| 71 | — |  | Normal Curves: Sexy Science, Serious Statistics | Regina Nuzzo and Kristin Sainani | |
| 72 | — | N | Nauka To Lubię | Tomasz Rożek | |
| 73 | — | T | The Holistic GP | Sanctuary Wellness and Medical | |
| 74 | 40 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 75 | 39 |  | Robert Sapolsky | Father-Offspring Interviews | Robert Sapolsky | |
| 76 | 39 |  | Flow Radio | Flow Research Collective | |
| 77 | 39 |  | Healthcare Perspectives | Siemens Healthineers | |
| 78 | — | C | Congress of Neurological Surgeons Podcasts | Congress of Neurological Surgeons | |
| 79 | 40 | Ł | Łapacz słów. Podcast o języku | Olga Woźniak | |
| 80 | 40 | V | Vaccine Curious | Christine Stabell Benn | |
| 81 | — |  | Chemistry in its element | Chemistry World | |
| 82 | 41 | B | BioScience Talks | American Institute of Biological Sciences | |
| 83 | 37 |  | The Plodcast | Our Media | |
| 84 | 40 |  | Rare Earth | BBC Radio 4 | |
| 85 | 42 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 86 | 34 |  | Proxy with Yowei Shaw | Y3 Productions | |
| 87 | 32 |  | The History of Chemistry | Steve Cohen | |
| 88 | 40 |  | Science Friday | Science Friday and WNYC Studios | |
| 89 | 38 | C | Conservation and Science | Tommy's Outdoors | |
| 90 | 40 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 91 | 42 | T | The Critter Shed | Collie Ennis & Colette Kinsella for Red Hare Media | |
| 92 | 39 | P | Pharma Market Access Insights - from Petauri Evidence | Petauri Evidence | |
| 93 | 24 | F | Farming Today | BBC Radio 4 | |
| 94 | 35 |  | The Orthobullets Podcast | Orthobullets | |
| 95 | 41 | H | How To Protect The Ocean | Andrew Lewin | |
| 96 | 39 |  | The Optispan Podcast with Matt Kaeberlein | Optispan | |
| 97 | 41 |  | Why Do We Do That? | BBC Radio 4 | |
| 98 | 40 |  | Geology Bites | Oliver Strimpel | |
| 99 | 39 | W | What If: Science, Theory, and Possibilities | What If | |
| 100 | 39 | 6 | 60-Second Earth | Scientific American | |
