| 1 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 2 | 1 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 3 | 1 |  | Curious Cases | BBC Radio 4 | |
| 4 | 2 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 5 | — |  | StarTalk Radio | Neil deGrasse Tyson | |
| 6 | 8 |  | Radiolab | WNYC Studios | |
| 7 | 5 |  | The Life Scientific | BBC Radio 4 | |
| 8 | 2 |  | More or Less | BBC Radio 4 | |
| 9 | — |  | BBC Inside Science | BBC Radio 4 | |
| 10 | 23 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 11 | 44 | I | In Your Nature | By BirdWatch Ireland | |
| 12 | 3 |  | Science Weekly | The Guardian | |
| 13 | — | N | Naturefile | RTÉ lyric fm | |
| 14 | 7 |  | Ologies with Alie Ward | Alie Ward | |
| 15 | 16 | B | Boring History for Sleep | Velvet | |
| 16 | 14 | F | Futureproof with Jonathan McCrea | Newstalk | |
| 17 | 28 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 18 | 47 |  | Invisibilia | NPR | |
| 19 | 9 |  | Ancient Aliens | PodcastOne | |
| 20 | 12 |  | Science Vs | Spotify Studios | |
| 21 | 50 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 22 | 48 | T | The Dairy Trail | Agriland Media | |
| 23 | 36 | C | CountryWide | RTÉ Radio 1 | |
| 24 | 13 |  | Making Sense with Sam Harris | Sam Harris | |
| 25 | 103 |  | Houston We Have a Podcast | National Aeronautics and Space Administration (NASA) | |
| 26 | 117 |  | All In The Mind | ABC | |
| 27 | 10 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 28 | — | W | What The Duck?! | ABC | |
| 29 | — |  | The Hamilton Morris Podcast | Hamilton Morris | |
| 30 | — | C | Changing Minds with Owen Fitzpatrick | Owen Fitzpatrick | |
| 31 | — | C | Costing the Earth | BBC Radio 4 | |
| 32 | — |  | Speed & Scale | TED | |
| 33 | — | H | Here We Are | Shane Mauss | |
| 34 | — | C | Climate Change for Beginners | Dr. Ciaran O'Carroll | |
| 35 | 151 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 36 | 20 | B | Bird Songs with Seán Ronayne | RTÉ lyric fm | |
| 37 | 1 |  | CrowdScience | BBC World Service | |
| 38 | 18 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 39 | 35 |  | Scotland Outdoors | BBC Radio Scotland | |
| 40 | 22 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 41 | 22 |  | Mythfits | Pionaire Podcasting | |
| 42 | 21 |  | The Plodcast | Our Media | |
| 43 | 51 | T | The Function Room | GoLoud | |
| 44 | 21 |  | Discovery | BBC World Service | |
| 45 | 82 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 46 | — | P | PEP talks - Pharmaceutical Expert Podcast | Körber Pharma | |
| 47 | — | C | Conversations in Drug Development | Boyds | |
| 48 | — | М | Мыслить как ученый | Ivar Maksutov, ПостНаука | |
| 49 | 25 |  | Cool Worlds Podcast | coolworldslab | |
| 50 | 25 | T | Tom MacSweeney's Seascapes | Tom MacSweeney | |
| 51 | 24 |  | Navigating Neuropsychology | John Bellone & Ryan Van Patten - NavNeuro | |
| 52 | — | L | Leaving Cert Biology Revision | Mr G. O'Donovan | |
| 53 | 27 | A | ATTD: Advanced Technologies and Treatments for Diabetes | ATTD on UNLOK | |
| 54 | 26 |  | My Big TOE by Thomas Campbell - Unifying Mind and Matter | Thomas Campbell together with the MBT Volunteers | |
| 55 | — |  | Slow Radio | BBC Radio 3 | |
| 56 | — |  | SuperHumanizer Podcast | Dr. Hani Chaabo & Katie Bogen M.A. | |
| 57 | — | T | The Social Care Podcast - Sharing Stories | The Social Care Podcast | |
| 58 | — |  | So Cultured Podcast | Liv Grant & Taz Shipley | |
| 59 | 30 |  | This Week in Microbiology | Vincent Racaniello | |
| 60 | — | C | COR2ED - Obstetrics & Gynecology Medical Conversation Video | COR2ED Medical Education | |
| 61 | 24 |  | Bigfoot Society | Jeremiah Byron | |
| 62 | 22 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 63 | 31 |  | Ciência Suja | Ciência Suja | |
| 64 | 6 |  | The world, the universe and us | New Scientist | |
| 65 | 29 |  | Nature Podcast | Springer Nature Limited | |
| 66 | 32 | F | Farming Today | BBC Radio 4 | |
| 67 | 6 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 68 | 33 |  | Green Dreamer: Seeding change towards collective healing, sustainability, regeneration | kaméa chayne | |
| 69 | 21 |  | DNA Today: A Genetics Podcast | Kira Dineen, Gene Pool Media | |
| 70 | 1 |  | Unexpected Elements | BBC World Service | |
| 71 | 32 |  | The Climate Question | BBC World Service | |
| 72 | 16 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 73 | 13 |  | Regenerative Agriculture Podcast | John Kempf | |
| 74 | 28 |  | That's Just Wild | Fresh Air | |
| 75 | 34 |  | Overheard at National Geographic | National Geographic | |
| 76 | 29 |  | Bigfoot Terror in the Woods Sightings and Encounters | W.J. Sheehan | |
| 77 | 33 |  | Opinionated History of Mathematics | Intellectual Mathematics | |
| 78 | 36 |  | Mongabay Newscast | Mongabay.com | |
| 79 | 36 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 80 | 41 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 81 | 32 | O | On Science with Anne-Sophie Fluri | Good Gosh Media | |
| 82 | 32 |  | The Fossil Files | Robert Sansom and Susannah Maidment | |
| 83 | 32 | B | BJD Talks | BJD | |
| 84 | 32 | P | PsychoShot | MindCraft | |
| 85 | 32 | B | Between the Lines | Institute of Development Studies | |
| 86 | 32 | A | AISTS Sport Medicine Podcasts | Discover the world of sports management through our MAS class | |
| 87 | 30 |  | Science In Action | BBC World Service | |
| 88 | 21 |  | The Common Descent Podcast | Common Descent | |
| 89 | 67 |  | Great Mysteries of Physics | The Conversation | |
| 90 | 21 |  | Mysterious Universe | 8th Kind | |
| 91 | 30 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 92 | 26 |  | New Books in Critical Theory | Marshall Poe | |
| 93 | 33 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 94 | 32 | C | Conservation and Science | Tommy's Outdoors | |
| 95 | 31 | R | Richard Wiseman's On Your Mind | Podimo & TellTale | |
| 96 | 33 | M | Making Science with Tom Whipple | The Times | |
| 97 | 29 |  | Dr. Chapa’s OBGYN Clinical Pearls | Dr. Chapa’s Clinical Pearls | |
| 98 | 15 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 99 | 12 |  | Astrum Space | Astrum | |
| 100 | 28 |  | Bigfoot Eyewitness Radio | Vic Cundiff | |
