| 1 | — | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 2 | 1 |  | Radiolab | WNYC Studios | |
| 3 | 8 | B | Bird Songs with Seán Ronayne | RTÉ lyric fm | |
| 4 | 2 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 5 | 7 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 6 | 4 |  | ScienceStuff | iHeartPodcasts | |
| 7 | 2 |  | More or Less | BBC Radio 4 | |
| 8 | 4 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 9 | 3 | F | Futureproof with Jonathan McCrea | Newstalk | |
| 10 | 3 |  | Unexplainable | Vox | |
| 11 | 3 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 12 | 1 |  | Science Weekly | The Guardian | |
| 13 | 3 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 14 | 116 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 15 | 2 |  | Curious Cases | BBC Radio 4 | |
| 16 | 4 |  | Ologies with Alie Ward | Alie Ward | |
| 17 | 182 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 18 | — | C | Conversation Beneath The Trees | Conversation Beneath The Trees | |
| 19 | — |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 20 | 16 |  | BBC Inside Science | BBC Radio 4 | |
| 21 | 2 |  | The Climate Question | BBC World Service | |
| 22 | — |  | The Social Work Podcast | Jonathan B. Singer, Ph.D., LCSW | |
| 23 | — |  | Untold Radio Network | Untold Radio Network | |
| 24 | — | T | The Scientist’s LabTalk | tslabtalk | |
| 25 | 16 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 26 | 16 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 27 | 11 |  | BrainStuff | iHeartPodcasts | |
| 28 | 23 |  | Speed & Scale | TED | |
| 29 | 49 |  | Science In Action | BBC World Service | |
| 30 | 32 |  | UAP Unidentified Alien Podcast | Gamut Podcast Network | |
| 31 | 17 |  | Ancient Aliens | PodcastOne | |
| 32 | 94 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 33 | 71 |  | Accidental Gods | Accidental Gods | |
| 34 | 56 | N | Nature Magic | Mary Bermingham | |
| 35 | 20 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 36 | 67 |  | Rare Earth | BBC Radio 4 | |
| 37 | 19 |  | Making Sense with Sam Harris | Sam Harris | |
| 38 | 89 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 39 | — |  | Planetary Radio: Space Exploration, Astronomy and Science | The Planetary Society | |
| 40 | — | 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 | |
| 41 | — |  | Rewilding the World with Ben Goldsmith | Ben Goldsmith | |
| 42 | — |  | Health Wanted | WABE | |
| 43 | — | R | Richard Wiseman's On Your Mind | Podimo & TellTale | |
| 44 | — | T | The Alcohol 'Problem' Podcast | James Morris | |
| 45 | — |  | Grey Dynamics | Grey Dynamics | |
| 46 | — |  | Freakonomics, M.D. | Freakonomics Radio + Stitcher | |
| 47 | — |  | Ecosystemic Futures | Dyan Finkhousen: CEO of Shoshin Works | |
| 48 | — |  | Bite Back with Abbey Sharp | Abbey Sharp / Frequency Podcast Network | |
| 49 | — | T | Trees A Crowd | David Oakes | |
| 50 | — |  | Sustainababble | Sustainababble: comedy, nature, climate change. | |
| 51 | — | M | Mathematics Simplified | Anjali Sharma | |
| 52 | — | T | The Secret Life of Death Podcast | Gail Golec | |
| 53 | 31 |  | The world, the universe and us | New Scientist | |
| 54 | 32 | C | CountryWide | RTÉ Radio 1 | |
| 55 | 30 |  | Mysterious Universe | 8th Kind | |
| 56 | 27 |  | Astrum Space | Astrum | |
| 57 | 36 | T | The Psychology of Criminal and Antisocial Behaviour | WP | |
| 58 | 34 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 59 | 33 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 60 | 40 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 61 | 26 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 62 | 35 |  | Normal Curves: Sexy Science, Serious Statistics | Regina Nuzzo and Kristin Sainani | |
| 63 | 11 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 64 | 36 | T | The Signpost Series | Teagasc | |
| 65 | 34 |  | Universe Today Podcast | Fraser Cain | |
| 66 | 36 | T | The Sod Pod | Grassland Agro | |
| 67 | 35 |  | The Plodcast | Our Media | |
| 68 | 35 | C | Changing Minds with Owen Fitzpatrick | Owen Fitzpatrick | |
| 69 | 35 | F | Farming Today | BBC Radio 4 | |
| 70 | 31 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 71 | 34 | T | The Knepp Wilding Podcast | Knepp.co.uk | |
| 72 | 28 |  | The Logic of Risk | Pasquale Cirillo | |
| 73 | 32 | L | Love The Bees Podcast | Yvonne Johnston | |
| 74 | 34 | P | PharmaSource Podcast | Life Science Networks | |
| 75 | 26 | A | ASGCT Podcast Network | American Society of Gene & Cell Therapy | |
| 76 | 33 | S | SIGNIFICANT. | David S. Filippi, MD | |
| 77 | 32 | N | New Scientist Escape Pod | New Scientist | |
| 78 | 32 |  | Your Brain On | Drs. Ayesha and Dean Sherzai | |
| 79 | 32 | N | New Scientist CultureLab | New Scientist | |
| 80 | 32 | П | правило 34 | Николай | |
| 81 | 31 | E | Eureka! | Stak | |
| 82 | 27 |  | CrowdScience | BBC World Service | |
| 83 | 30 | I | In Your Nature | By BirdWatch Ireland | |
| 84 | 4 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 85 | 31 |  | The Life Scientific | BBC Radio 4 | |
| 86 | 29 |  | The Psychology Podcast | iHeartPodcasts | |
| 87 | 26 |  | Instant Genius | Our Media | |
| 88 | 28 |  | The Common Descent Podcast | Common Descent | |
| 89 | 33 | T | The Animal Sensemaker | The Observer | |
| 90 | 32 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 91 | 32 |  | Most Terrifying Places in America | Travel Channel | |
| 92 | 29 |  | Drilled | Pushkin Industries | |
| 93 | 29 |  | Invisibilia | NPR | |
| 94 | 17 |  | Eons: Surviving Deep Time | PBS | |
| 95 | 29 |  | Science Talk | Scientific American | |
| 96 | 25 |  | Night Science | Itai Yanai & Martin Lercher | |
| 97 | 32 | I | Irish Wildlife Trust | Irish Wildlife Trust | |
| 98 | 28 |  | Origin Stories | The Leakey Foundation | |
| 99 | 32 |  | syzygy | Chris Stewart & Emily Brunsden | |
| 100 | 32 | A | Activation Energy | Selma Duhovic | |
