| 1 | — |  | Curious Cases | BBC Radio 4 | |
| 2 | 4 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 3 | 1 |  | More or Less | BBC Radio 4 | |
| 4 | — |  | Radiolab | WNYC Studios | |
| 5 | 2 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 6 | 1 |  | Science Weekly | The Guardian | |
| 7 | 2 | F | Futureproof with Jonathan McCrea | Newstalk | |
| 8 | 2 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 9 | 45 |  | All In The Mind | ABC | |
| 10 | 1 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 11 | — |  | Future Ecologies | Future Ecologies | |
| 12 | — |  | CrowdScience | BBC World Service | |
| 13 | 2 | B | Bird Songs with Seán Ronayne | RTÉ lyric fm | |
| 14 | 1 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 15 | — |  | StarTalk Radio | Neil deGrasse Tyson | |
| 16 | 8 | N | Naturefile | RTÉ lyric fm | |
| 17 | 2 | B | Boring History for Sleep | Velvet | |
| 18 | — |  | Ologies with Alie Ward | Alie Ward | |
| 19 | 39 |  | Science In Action | BBC World Service | |
| 20 | 43 |  | Science Vs | Spotify Studios | |
| 21 | 57 | F | Farming Today | BBC Radio 4 | |
| 22 | 8 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 23 | 81 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 24 | 8 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 25 | 140 |  | Drilled | Pushkin Industries | |
| 26 | 4 |  | The world, the universe and us | New Scientist | |
| 27 | 129 |  | That UFO Podcast | That UFO Podcast | |
| 28 | 74 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 29 | 108 |  | Astrum Space | Astrum | |
| 30 | — | W | Why? with Emma Kennedy | Podmasters | |
| 31 | — |  | Where Is My Mind? | Mark Gober and Blue Duck Media | |
| 32 | — |  | Completely Arbortrary | Completely Arbortrary | |
| 33 | — | T | The Human Risk Podcast | Human Risk | |
| 34 | — |  | The Cartesian Cafe | Timothy Nguyen | |
| 35 | 79 |  | Discovery | BBC World Service | |
| 36 | 19 |  | Unexplainable | Vox | |
| 37 | 14 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 38 | 17 |  | Making Sense with Sam Harris | Sam Harris | |
| 39 | 19 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 40 | 18 |  | Speaking of Psychology | American Psychological Association | |
| 41 | 13 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 42 | 116 |  | The Best of Coast to Coast AM | iHeartPodcasts and Coast to Coast AM | |
| 43 | 19 | C | Converging Dialogues | Converging Dialogues | |
| 44 | 18 | V | VITA1001 Modern Pharma | Sue and Iris | |
| 45 | 20 | R | Resonance Rising : Healing with Energy and Alternative Medicine | Ben Dadbin | |
| 46 | — | B | Best Medicine | BBC Radio 4 | |
| 47 | 20 | L | Living Room Logic – Irish Science Podcast | Andrew McGovern and Aidan Long | |
| 48 | — | N | Naturmorgon | Sveriges Radio | |
| 49 | 16 |  | The Life Scientific | BBC Radio 4 | |
| 50 | 21 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 51 | 20 |  | Overheard at National Geographic | National Geographic | |
| 52 | 20 |  | Naturebang | BBC Radio 4 | |
| 53 | 16 |  | The Climate Question | BBC World Service | |
| 54 | 20 |  | Green Dreamer: Seeding change towards collective healing, sustainability, regeneration | kaméa chayne | |
| 55 | 20 |  | Brain Science with Ginger Campbell, MD: Neuroscience for Everyone | Ginger Campbell, MD | |
| 56 | 20 | H | Het uur van de waarheid | VRT NWS | |
| 57 | 4 | C | CountryWide | RTÉ Radio 1 | |
| 58 | 14 |  | Robert Sapolsky | Father-Offspring Interviews | Robert Sapolsky | |
| 59 | 21 |  | Science Friction | ABC | |
| 60 | 10 |  | Cool Worlds Podcast | coolworldslab | |
| 61 | 22 |  | The Weirdest Thing I Learned This Week | Popular Science | |
| 62 | 22 | T | The Self Careapist Therapist Podcast | Lorain Moorehead | |
| 63 | 20 | T | This Natural Life | BBC Radio 4 | |
| 64 | 23 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 65 | 15 |  | Need To Know | Bryce Zabel | |
| 66 | 24 | L | Leaving Cert Biology Revision | Mr G. O'Donovan | |
| 67 | 22 | T | Tweet of the Day | BBC Radio 4 | |
| 68 | 22 | Á | Ático Primera con Laia Castel | laiascastel | |
| 69 | 22 |  | Alive Again | iHeartPodcasts | |
| 70 | 22 | P | Play Therapy Community | Jackie Flynn, EMDRIA Approved Consultant | |
| 71 | 22 |  | Why Do We Do That? | BBC Radio 4 | |
| 72 | 21 | N | New Scientist CultureLab | New Scientist | |
| 73 | 21 |  | Incubation | Pushkin Industries | |
| 74 | 19 |  | EverydaySpy Podcast | Andrew Bustamante | |
| 75 | 9 |  | Universe Today Podcast | Fraser Cain | |
| 76 | 22 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 77 | 21 |  | Robinson's Podcast | Robinson Erhardt | |
| 78 | 3 |  | Scotland Outdoors | BBC Radio Scotland | |
| 79 | 22 | T | Tom MacSweeney's Seascapes | Tom MacSweeney | |
| 80 | 18 | T | The Function Room | GoLoud | |
| 81 | 11 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 82 | 23 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 83 | 14 |  | BBC Inside Science | BBC Radio 4 | |
| 84 | 24 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 85 | 3 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 86 | 25 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 87 | 4 |  | Short Wave | NPR | |
| 88 | 24 | S | Safe As Podcast | Ben Hutchinson | |
| 89 | 22 | E | Eos Wetenschap | eoswetenschap | |
| 90 | 17 | T | The Neuro Clinic | Ingram Wright | |
| 91 | 26 | P | Political Hope | WeDeepen | |
| 92 | 26 |  | Navigating Neuropsychology | John Bellone & Ryan Van Patten - NavNeuro | |
| 93 | 25 |  | Brain Inspired | Paul Middlebrooks | |
| 94 | 25 |  | Immune | Vincent Racaniello | |
| 95 | 25 |  | ExtinctZoo | ExtinctZoo | |
| 96 | 25 | S | SOA Podcasts - Society of Actuaries | Society of Actuaries (SOA) | |
| 97 | 25 |  | The Mental Elf | The Mental Elf | |
| 98 | 24 | M | Meteor | Český rozhlas | |
| 99 | 24 | T | The Social Care Podcast - Sharing Stories | The Social Care Podcast | |
| 100 | 24 |  | Kohn's Zone | Alfie Kohn | |
