| 1 | 1 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 2 | 1 |  | Where The Wild Thoughts Are | Jo Marchant | |
| 3 | 8 |  | Curious Cases | BBC Radio 4 | |
| 4 | 1 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 5 | — |  | More or Less | BBC Radio 4 | |
| 6 | — |  | Radiolab | WNYC Studios | |
| 7 | 3 |  | Unexplainable | Vox | |
| 8 | 1 |  | Ologies with Alie Ward | Alie Ward | |
| 9 | — | F | Futureproof with Jonathan McCrea | Newstalk | |
| 10 | 2 |  | Science unscripted | DW | |
| 11 | 3 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 12 | 1 |  | Flash Forward | Rose Eveleth | |
| 13 | 46 |  | The Life Scientific | BBC Radio 4 | |
| 14 | 4 |  | Science Weekly | The Guardian | |
| 15 | 6 |  | CrowdScience | BBC World Service | |
| 16 | 132 |  | Scotland Outdoors | BBC Radio Scotland | |
| 17 | 31 |  | All In The Mind | ABC | |
| 18 | 24 |  | Re:Energise from ESB | ESB | |
| 19 | 2 | I | In Your Nature | By BirdWatch Ireland | |
| 20 | 8 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 21 | 55 |  | Discovery | BBC World Service | |
| 22 | 13 |  | All Creatures Podcast | All Creatures Podcast | |
| 23 | 97 |  | Naturebang | BBC Radio 4 | |
| 24 | 26 |  | Nature Podcast | Springer Nature Limited | |
| 25 | 122 | W | Why? with Emma Kennedy | Podmasters | |
| 26 | 134 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 27 | — | W | WatchMojo's Unveiled Podcast | Robert Flis & Studio71 | |
| 28 | — | T | This Week in Evolution | Vincent Racaniello | |
| 29 | 7 |  | Making Sense with Sam Harris | Sam Harris | |
| 30 | — |  | Where Is My Mind? | Mark Gober and Blue Duck Media | |
| 31 | — |  | Slow Radio | BBC Radio 3 | |
| 32 | — | T | Tweet of the Day | BBC Radio 4 | |
| 33 | — | C | Costing the Earth | BBC Radio 4 | |
| 34 | — | T | The Artificial Human | BBC Radio 4 | |
| 35 | — | P | pharmaphorum Podcast | pharmaphorum | |
| 36 | — | M | Musings on Transhumanism | Ash Bayram | |
| 37 | 21 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 38 | 23 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 39 | 21 | N | Naturefile | RTÉ lyric fm | |
| 40 | 21 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 41 | 21 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 42 | 19 |  | BBC Inside Science | BBC Radio 4 | |
| 43 | 17 |  | Science Vs | Spotify Studios | |
| 44 | 17 | C | CountryWide | RTÉ Radio 1 | |
| 45 | 21 |  | My Big TOE by Thomas Campbell - Unifying Mind and Matter | Thomas Campbell together with the MBT Volunteers | |
| 46 | 75 |  | Unexpected Elements | BBC World Service | |
| 47 | 22 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 48 | 19 |  | The Psychology Podcast | iHeartPodcasts | |
| 49 | 79 | T | The Science of Psychotherapy | Dahlitz Media | |
| 50 | 87 |  | Podcast UFO | Martin Willis | |
| 51 | 102 | U | Under the Cortex | psychologicalscience | |
| 52 | 21 |  | Paranormal Portal | Brent Thomas | |
| 53 | 128 | O | Open Country | BBC Radio 4 | |
| 54 | 13 |  | Rare Earth | BBC Radio 4 | |
| 55 | 25 |  | Why Do We Do That? | BBC Radio 4 | |
| 56 | 133 |  | How We're Wired | The Bertarelli Foundation | |
| 57 | 29 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 58 | — |  | The After On Podcast | Rob Reid | |
| 59 | 25 | H | Handmade | Anna Ploszajski | |
| 60 | 23 |  | Pale Blue Pod | Multitude | |
| 61 | 29 | T | The WildX Podcast | Andy Green, Mike Phelps and Adam Juckes | |
| 62 | — | T | The Offshore Wind Podcast from GWEC | Global Wind Energy Council | |
| 63 | — |  | World’s Wildest: Tales of Earth’s Most Extreme Creatures | Maya Higa & Connor O'Brien | |
| 64 | — | N | New Scientist Weekly | New Scientist | |
| 65 | 32 | N | Nature Fix | National Trust | |
| 66 | 26 | T | The Black Goat | Sanjay Srivastava, Alexa Tullett, and Simine Vazire | |
| 67 | — | T | This Natural Life | BBC Radio 4 | |
| 68 | — |  | The Uptime Wind Energy Podcast | Allen Hall, Rosemary Barnes, Joel Saxum & Yolanda Padron | |
| 69 | 33 | P | PsychCrunch | The British Psychological Society Research Digest | |
| 70 | — | T | The Animal Sensemaker | The Observer | |
| 71 | — |  | The Social Work Podcast | Jonathan B. Singer, Ph.D., LCSW | |
| 72 | — | I | In Plain English: Science Made Simple | In Plain English | |
| 73 | 35 | B | Beyond Us and Them. Podcast on radicalization in the times of social polarization | Institute of Public Affairs | |
| 74 | 35 | R | ReproducibiliTea Podcast | ReproducibiliTea Podcast | |
| 75 | 32 | F | Farming Today | BBC Radio 4 | |
| 76 | 31 | B | Boring History for Sleep | Velvet | |
| 77 | 24 |  | Overheard at National Geographic | National Geographic | |
| 78 | 34 |  | TED Talks Science and Medicine | TED | |
| 79 | 32 |  | Astrum Space | Astrum | |
| 80 | 34 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 81 | 2 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 82 | 27 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 83 | 34 |  | The Nature Of with Willow Defebaugh | Atmos | |
| 84 | 33 | I | Irish Wildlife Trust | Irish Wildlife Trust | |
| 85 | 31 |  | Babbage from The Economist | The Economist | |
| 86 | 34 |  | Chemistry For Your Life | Melissa and Jam, Bleav | |
| 87 | 30 |  | Robinson's Podcast | Robinson Erhardt | |
| 88 | 28 |  | Native Plants, Healthy Planet | Pinelands Nursery, Bleav | |
| 89 | 33 |  | Lingthusiasm - A podcast that's enthusiastic about linguistics | Gretchen McCulloch and Lauren Gawne | |
| 90 | 32 |  | Great Mysteries of Physics | The Conversation | |
| 91 | 29 |  | Accidental Gods | Accidental Gods | |
| 92 | 31 |  | EverydaySpy Podcast | Andrew Bustamante | |
| 93 | 26 | W | Wild Beings Podcast | Wild Beings Podcast | |
| 94 | 31 | E | Elfonomics - with Elf Lyons and Dr Gerard Lyons | Elfonomics | |
| 95 | 31 | К | Кортекс | Anastasia Neklyudova & Daria Kleeva | |
| 96 | 31 | T | The Planet Earth Podcast | BBC Radio 4 | |
| 97 | 31 | M | Mushroom Revival Podcast | Alex Dorr | |
| 98 | 30 | R | Research Comms | Peter Barker | |
| 99 | 30 | N | Neuropsych on the Mic | Society for Clinical Neuropsychology | |
| 100 | 30 | P | PharmaSource Podcast | Life Science Networks | |
