| 1 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 2 | — |  | Where The Wild Thoughts Are | Jo Marchant | |
| 3 | — |  | Shocked | UChicago Institute for Climate and Sustainable Growth, Michael Greenstone, Amy Harder | |
| 4 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 5 | 1 |  | Radiolab | WNYC Studios | |
| 6 | 3 |  | Curious Cases | BBC Radio 4 | |
| 7 | 4 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 8 | 68 | B | Boring History for Sleep | Velvet | |
| 9 | 1 |  | Ologies with Alie Ward | Alie Ward | |
| 10 | 3 |  | Unexplainable | Vox | |
| 11 | 6 |  | More or Less | BBC Radio 4 | |
| 12 | 7 | I | In Your Nature | By BirdWatch Ireland | |
| 13 | 4 | F | Futureproof with Jonathan McCrea | Newstalk | |
| 14 | — |  | Science Weekly | The Guardian | |
| 15 | 5 |  | Science unscripted | DW | |
| 16 | — |  | Oceanography | Pine Forest Media | |
| 17 | 5 |  | Flash Forward | Rose Eveleth | |
| 18 | 63 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 19 | 63 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 20 | 17 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 21 | 8 |  | The Life Scientific | BBC Radio 4 | |
| 22 | 81 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 23 | 8 |  | CrowdScience | BBC World Service | |
| 24 | — | O | On the horizon with Glenn and Henry | Glenn Kirby | |
| 25 | — |  | New Books in Psychoanalysis | Marshall Poe | |
| 26 | — |  | All Things Urticaria – Learning about urticaria with Prof. Dr. Torsten Zuberbier | UCARE, the Global Allergy and Asthma Excellence Network for Urticaria | |
| 27 | — | B | Bird Songs with Seán Ronayne | RTÉ lyric fm | |
| 28 | — |  | Osterholm Update | CIDRAP | |
| 29 | — | P | Podcast Akademie věd | Akademie věd ČR | |
| 30 | 14 |  | Scotland Outdoors | BBC Radio Scotland | |
| 31 | 11 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 32 | 14 |  | Re:Energise from ESB | ESB | |
| 33 | 16 |  | All In The Mind | ABC | |
| 34 | 13 |  | Discovery | BBC World Service | |
| 35 | 50 |  | Babbage from The Economist | The Economist | |
| 36 | 73 |  | The world, the universe and us | New Scientist | |
| 37 | 15 |  | All Creatures Podcast | All Creatures Podcast | |
| 38 | 15 |  | Naturebang | BBC Radio 4 | |
| 39 | 13 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 40 | 15 | W | Why? with Emma Kennedy | Podmasters | |
| 41 | 17 |  | Nature Podcast | Springer Nature Limited | |
| 42 | 13 |  | Making Sense with Sam Harris | Sam Harris | |
| 43 | — | T | Tom MacSweeney's Seascapes | Tom MacSweeney | |
| 44 | 17 | W | WatchMojo's Unveiled Podcast | Robert Flis & Studio71 | |
| 45 | 13 | T | Tweet of the Day | BBC Radio 4 | |
| 46 | — | ( | (don't) Waste Water! | Water Tech to Solve the World | Antoine Walter | |
| 47 | 12 | P | pharmaphorum Podcast | pharmaphorum | |
| 48 | — |  | Your Brain On Climate | Dave Powell | |
| 49 | 21 | T | This Week in Evolution | Vincent Racaniello | |
| 50 | 20 |  | Where Is My Mind? | Mark Gober and Blue Duck Media | |
| 51 | 20 |  | Slow Radio | BBC Radio 3 | |
| 52 | — | L | Love The Bees Podcast | Yvonne Johnston | |
| 53 | — | S | Social Work Radio | Social Work Radio | |
| 54 | 21 | C | Costing the Earth | BBC Radio 4 | |
| 55 | 21 | T | The Artificial Human | BBC Radio 4 | |
| 56 | 20 | M | Musings on Transhumanism | Ash Bayram | |
| 57 | — | W | What Is Life? | Carl Zimmer | |
| 58 | 20 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 59 | 20 | N | Naturefile | RTÉ lyric fm | |
| 60 | 19 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 61 | 15 |  | Unexpected Elements | BBC World Service | |
| 62 | 20 |  | BBC Inside Science | BBC Radio 4 | |
| 63 | 23 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 64 | 21 |  | Science Vs | Spotify Studios | |
| 65 | 37 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 66 | 21 |  | My Big TOE by Thomas Campbell - Unifying Mind and Matter | Thomas Campbell together with the MBT Volunteers | |
| 67 | 12 |  | Astrum Space | Astrum | |
| 68 | 20 |  | The Psychology Podcast | iHeartPodcasts | |
| 69 | 20 | T | The Science of Psychotherapy | Dahlitz Media | |
| 70 | 23 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 71 | 21 |  | Podcast UFO | Martin Willis | |
| 72 | 20 |  | Paranormal Portal | Brent Thomas | |
| 73 | 22 | U | Under the Cortex | psychologicalscience | |
| 74 | 21 | O | Open Country | BBC Radio 4 | |
| 75 | 21 |  | Rare Earth | BBC Radio 4 | |
| 76 | 21 |  | Why Do We Do That? | BBC Radio 4 | |
| 77 | 13 | N | New Scientist Weekly | New Scientist | |
| 78 | 34 | C | CountryWide | RTÉ Radio 1 | |
| 79 | 18 | T | The WildX Podcast | Andy Green, Mike Phelps and Adam Juckes | |
| 80 | 24 |  | How We're Wired | The Bertarelli Foundation | |
| 81 | 16 | N | Nature Fix | National Trust | |
| 82 | 14 |  | The Uptime Wind Energy Podcast | Allen Hall, Rosemary Barnes, Joel Saxum & Yolanda Padron | |
| 83 | 12 |  | The Social Work Podcast | Jonathan B. Singer, Ph.D., LCSW | |
| 84 | 26 |  | The After On Podcast | Rob Reid | |
| 85 | 26 | H | Handmade | Anna Ploszajski | |
| 86 | 26 |  | Pale Blue Pod | Multitude | |
| 87 | 24 |  | World’s Wildest: Tales of Earth’s Most Extreme Creatures | Maya Higa & Connor O'Brien | |
| 88 | 26 | T | The Offshore Wind Podcast from GWEC | Global Wind Energy Council | |
| 89 | 23 | T | The Black Goat | Sanjay Srivastava, Alexa Tullett, and Simine Vazire | |
| 90 | 23 | T | This Natural Life | BBC Radio 4 | |
| 91 | 22 | P | PsychCrunch | The British Psychological Society Research Digest | |
| 92 | 22 | T | The Animal Sensemaker | The Observer | |
| 93 | 21 | I | In Plain English: Science Made Simple | In Plain English | |
| 94 | 21 | B | Beyond Us and Them. Podcast on radicalization in the times of social polarization | Institute of Public Affairs | |
| 95 | 21 | R | ReproducibiliTea Podcast | ReproducibiliTea Podcast | |
| 96 | 21 | F | Farming Today | BBC Radio 4 | |
| 97 | 10 |  | Robinson's Podcast | Robinson Erhardt | |
| 98 | 20 |  | TED Talks Science and Medicine | TED | |
| 99 | 19 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 100 | 1 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
