| 1 | 6 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 2 | 1 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 3 | 1 |  | Where The Wild Thoughts Are | Jo Marchant | |
| 4 | 1 |  | Radiolab | WNYC Studios | |
| 5 | 2 |  | Shocked | UChicago Institute for Climate and Sustainable Growth, Michael Greenstone, Amy Harder | |
| 6 | — |  | Curious Cases | BBC Radio 4 | |
| 7 | 2 |  | Ologies with Alie Ward | Alie Ward | |
| 8 | 4 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 9 | 1 | B | Boring History for Sleep | Velvet | |
| 10 | 1 |  | More or Less | BBC Radio 4 | |
| 11 | 3 |  | Science Weekly | The Guardian | |
| 12 | 4 |  | Oceanography | Pine Forest Media | |
| 13 | 50 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 14 | 159 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 15 | 8 |  | CrowdScience | BBC World Service | |
| 16 | — |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 17 | 42 | N | Naturefile | RTÉ lyric fm | |
| 18 | 6 | I | In Your Nature | By BirdWatch Ireland | |
| 19 | 9 |  | Unexplainable | Vox | |
| 20 | 56 |  | Why Do We Do That? | BBC Radio 4 | |
| 21 | 8 | F | Futureproof with Jonathan McCrea | Newstalk | |
| 22 | 76 |  | TED Talks Science and Medicine | TED | |
| 23 | — |  | This Is Your Brain With Dr. Phil Stieg | Weill Cornell Medicine Neurological Surgery | |
| 24 | 8 |  | Re:Energise from ESB | ESB | |
| 25 | — |  | Skeptoid | Brian Dunning | |
| 26 | 11 |  | Science unscripted | DW | |
| 27 | — |  | Earthfiles Podcast with Linda Moulton Howe | Linda Moulton Howe | |
| 28 | 73 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 29 | — | F | Full PreFrontal: Exposing the Mysteries of Executive Function | Sucheta Kamath | |
| 30 | — | Г | Головний подкаст | Суспільне Мовлення | |
| 31 | 33 |  | Science Vs | Spotify Studios | |
| 32 | 1 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 33 | 16 |  | Flash Forward | Rose Eveleth | |
| 34 | 16 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 35 | 15 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 36 | 15 |  | The Life Scientific | BBC Radio 4 | |
| 37 | 18 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 38 | 83 |  | The Michael Shermer Show | Michael Shermer | |
| 39 | 73 |  | Accidental Gods | Accidental Gods | |
| 40 | 18 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 41 | 14 | B | Bird Songs with Seán Ronayne | RTÉ lyric fm | |
| 42 | 84 |  | Geopop - Le Scienze nella vita di tutti i giorni | Geopop | |
| 43 | 156 | T | The Climate Ambassador Podcast | The Climate Ambassador Podcast | |
| 44 | 19 |  | New Books in Psychoanalysis | Marshall Poe | |
| 45 | 19 |  | All Things Urticaria – Learning about urticaria with Prof. Dr. Torsten Zuberbier | UCARE, the Global Allergy and Asthma Excellence Network for Urticaria | |
| 46 | 22 | O | On the horizon with Glenn and Henry | Glenn Kirby | |
| 47 | — | T | The Rabbit Hole Conversations | Kelly Chase | |
| 48 | 20 |  | Osterholm Update | CIDRAP | |
| 49 | — |  | Constant Wonder | BYUradio | |
| 50 | — | S | Small Islands Big Picture | ODI Resilient and Sustainable Islands Initiative (RESI) | |
| 51 | — | N | Numbers Talk | ACE at the Stockholm School of Economics | |
| 52 | 23 | P | Podcast Akademie věd | Akademie věd ČR | |
| 53 | 19 |  | Discovery | BBC World Service | |
| 54 | 24 |  | Scotland Outdoors | BBC Radio Scotland | |
| 55 | 22 |  | All In The Mind | ABC | |
| 56 | 21 |  | Babbage from The Economist | The Economist | |
| 57 | 21 |  | The world, the universe and us | New Scientist | |
| 58 | 21 |  | All Creatures Podcast | All Creatures Podcast | |
| 59 | 17 |  | Making Sense with Sam Harris | Sam Harris | |
| 60 | — |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 61 | 23 |  | Naturebang | BBC Radio 4 | |
| 62 | 22 | W | Why? with Emma Kennedy | Podmasters | |
| 63 | 5 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 64 | 32 | F | Farming Today | BBC Radio 4 | |
| 65 | — |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 66 | 27 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 67 | 20 | P | pharmaphorum Podcast | pharmaphorum | |
| 68 | 16 | L | Love The Bees Podcast | Yvonne Johnston | |
| 69 | 2 |  | Astrum Space | Astrum | |
| 70 | 21 | T | This Week in Evolution | Vincent Racaniello | |
| 71 | 28 | T | Tom MacSweeney's Seascapes | Tom MacSweeney | |
| 72 | 31 |  | Nature Podcast | Springer Nature Limited | |
| 73 | 25 |  | Your Brain On Climate | Dave Powell | |
| 74 | 30 | W | WatchMojo's Unveiled Podcast | Robert Flis & Studio71 | |
| 75 | 30 | T | Tweet of the Day | BBC Radio 4 | |
| 76 | 23 | S | Social Work Radio | Social Work Radio | |
| 77 | 31 | ( | (don't) Waste Water! | Water Tech to Solve the World | Antoine Walter | |
| 78 | 28 |  | Where Is My Mind? | Mark Gober and Blue Duck Media | |
| 79 | 28 |  | Slow Radio | BBC Radio 3 | |
| 80 | 26 | C | Costing the Earth | BBC Radio 4 | |
| 81 | 26 | T | The Artificial Human | BBC Radio 4 | |
| 82 | 26 | M | Musings on Transhumanism | Ash Bayram | |
| 83 | 26 | W | What Is Life? | Carl Zimmer | |
| 84 | 23 |  | Unexpected Elements | BBC World Service | |
| 85 | 37 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 86 | 24 |  | BBC Inside Science | BBC Radio 4 | |
| 87 | 17 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 88 | 22 |  | My Big TOE by Thomas Campbell - Unifying Mind and Matter | Thomas Campbell together with the MBT Volunteers | |
| 89 | 18 |  | Podcast UFO | Martin Willis | |
| 90 | 22 |  | The Psychology Podcast | iHeartPodcasts | |
| 91 | 22 | T | The Science of Psychotherapy | Dahlitz Media | |
| 92 | 18 | O | Open Country | BBC Radio 4 | |
| 93 | 13 |  | How We're Wired | The Bertarelli Foundation | |
| 94 | 21 | U | Under the Cortex | psychologicalscience | |
| 95 | 5 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 96 | 17 | T | The WildX Podcast | Andy Green, Mike Phelps and Adam Juckes | |
| 97 | 2 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 98 | 23 |  | Rare Earth | BBC Radio 4 | |
| 99 | 27 |  | Paranormal Portal | Brent Thomas | |
| 100 | 23 | N | New Scientist Weekly | New Scientist | |
