| 1 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 2 | 3 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 3 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 4 | — |  | Radiolab | WNYC Studios | |
| 5 | 3 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 6 | 2 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 7 | 2 | B | Bird Songs with Seán Ronayne | RTÉ lyric fm | |
| 8 | 1 |  | Science Weekly | The Guardian | |
| 9 | 3 | F | Futureproof with Jonathan McCrea | Newstalk | |
| 10 | 89 |  | The Life Scientific | BBC Radio 4 | |
| 11 | 5 |  | ScienceStuff | iHeartPodcasts | |
| 12 | — | C | Conservation and Science | Tommy's Outdoors | |
| 13 | 6 |  | Rewilding the World with Ben Goldsmith | Ben Goldsmith | |
| 14 | 11 |  | Curious Cases | BBC Radio 4 | |
| 15 | 5 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 16 | 5 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 17 | 1 |  | Making Sense with Sam Harris | Sam Harris | |
| 18 | 4 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 19 | 6 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 20 | 5 |  | More or Less | BBC Radio 4 | |
| 21 | 58 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 22 | 6 |  | Untold Radio Network | Untold Radio Network | |
| 23 | 84 |  | Science Talk | Scientific American | |
| 24 | 84 |  | Eons: Surviving Deep Time | PBS | |
| 25 | 73 | C | CountryWide | RTÉ Radio 1 | |
| 26 | 74 |  | CrowdScience | BBC World Service | |
| 27 | 10 |  | Unexplainable | Vox | |
| 28 | 129 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 29 | — |  | Ask a Spaceman! | Paul M. Sutter | |
| 30 | — |  | You Are Not So Smart | You Are Not So Smart | |
| 31 | — | N | New Books in Political Science | New Books Network | |
| 32 | — | T | The Met Éireann Podcast | Met Éireann | |
| 33 | — | T | The Whole Tooth | The Irish Dental Association | |
| 34 | — | N | New Books in Public Policy | New Books Network | |
| 35 | — | Q | Qualitative Research Methods for Everyone Podcast | Policy Press | |
| 36 | 16 |  | The world, the universe and us | New Scientist | |
| 37 | 16 | C | Changing Minds with Owen Fitzpatrick | Owen Fitzpatrick | |
| 38 | 16 |  | Ologies with Alie Ward | Alie Ward | |
| 39 | 16 | I | In Your Nature | By BirdWatch Ireland | |
| 40 | 14 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 41 | 17 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 42 | 15 | T | The Animal Sensemaker | The Observer | |
| 43 | 15 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 44 | 15 | C | Conversation Beneath The Trees | Conversation Beneath The Trees | |
| 45 | 12 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 46 | 16 |  | BBC Inside Science | BBC Radio 4 | |
| 47 | 16 |  | The Climate Question | BBC World Service | |
| 48 | 16 |  | Unexpected Elements | BBC World Service | |
| 49 | 15 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 50 | 15 | E | Environmental Insights: Conversations on policy and practice from the Harvard Environmental Economics Program | Harvard Environmental Economics Program | |
| 51 | 15 | F | Farming for Nature | Farming for Nature | |
| 52 | 13 | L | Leaving Cert Biology Revision | Mr G. O'Donovan | |
| 53 | 15 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 54 | 9 |  | SAPIENS: A Podcast for Everything Human | SAPIENS | |
| 55 | 18 | D | Delving In with Stuart Kelter | Stuart Kelter | |
| 56 | 8 | N | Nysgjerrige Norge | Forskningsrådet | |
| 57 | 17 | T | The Systemic Way | Sezer and Julie | |
| 58 | 17 |  | DNA Today: A Genetics Podcast | Kira Dineen, Gene Pool Media | |
| 59 | 15 |  | Green Dreamer: Seeding change towards collective healing, sustainability, regeneration | kaméa chayne | |
| 60 | 18 | T | The Scientist’s LabTalk | tslabtalk | |
| 61 | 18 | T | The Physio Matters Podcast | Jack Chew | |
| 62 | 13 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 63 | 17 |  | The Social Work Podcast | Jonathan B. Singer, Ph.D., LCSW | |
| 64 | 17 | T | The Animal Turn | Claudia Hirtenfelder | |
| 65 | 10 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 66 | 16 |  | BrainStuff | iHeartPodcasts | |
| 67 | 16 |  | Speed & Scale | TED | |
| 68 | 61 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 69 | 13 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 70 | 18 |  | UAP Unidentified Alien Podcast | Gamut Podcast Network | |
| 71 | 18 |  | Science In Action | BBC World Service | |
| 72 | 18 |  | Ancient Aliens | PodcastOne | |
| 73 | 14 |  | Accidental Gods | Accidental Gods | |
| 74 | 17 | N | Nature Magic | Mary Bermingham | |
| 75 | 17 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 76 | 16 |  | Rare Earth | BBC Radio 4 | |
| 77 | 16 | T | The Compassion Initiative: Just Two Guys in Brisbane talking Compassion. www.thecompassioninitiative.com.au | The Compassion Initiative: Dr Stan Steindl and Dr James Kirby | |
| 78 | 3 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 79 | 11 |  | Bite Back with Abbey Sharp | Abbey Sharp / Frequency Podcast Network | |
| 80 | — |  | Overheard at National Geographic | National Geographic | |
| 81 | 19 |  | Planetary Radio: Space Exploration, Astronomy and Science | The Planetary Society | |
| 82 | 8 |  | Astrum Space | Astrum | |
| 83 | 20 |  | Health Wanted | WABE | |
| 84 | 20 | R | Richard Wiseman's On Your Mind | Podimo & TellTale | |
| 85 | 20 |  | Freakonomics, M.D. | Freakonomics Radio + Stitcher | |
| 86 | 20 | T | The Alcohol 'Problem' Podcast | James Morris | |
| 87 | 20 |  | Grey Dynamics | Grey Dynamics | |
| 88 | 19 |  | Ecosystemic Futures | Dyan Finkhousen: CEO of Shoshin Works | |
| 89 | 19 | T | Trees A Crowd | David Oakes | |
| 90 | 19 |  | Sustainababble | Sustainababble: comedy, nature, climate change. | |
| 91 | 19 | M | Mathematics Simplified | Anjali Sharma | |
| 92 | 19 | T | The Secret Life of Death Podcast | Gail Golec | |
| 93 | 9 |  | The Plodcast | Our Media | |
| 94 | 12 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 95 | 17 |  | Mysterious Universe | 8th Kind | |
| 96 | 16 | F | Farming Today | BBC Radio 4 | |
| 97 | 21 | T | The Signpost Series | Teagasc | |
| 98 | 21 | T | The Psychology of Criminal and Antisocial Behaviour | WP | |
| 99 | 12 |  | Universe Today Podcast | Fraser Cain | |
| 100 | 15 |  | The Supermassive Podcast | The Royal Astronomical Society | |
