| 1 | 2 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 2 | 1 |  | Making Sense with Sam Harris | Sam Harris | |
| 3 | 2 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 4 | 18 |  | Ologies with Alie Ward | Alie Ward | |
| 5 | 47 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 6 | 2 |  | More or Less | BBC Radio 4 | |
| 7 | — | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 8 | 6 | B | Bird Songs with Seán Ronayne | RTÉ lyric fm | |
| 9 | 1 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 10 | 10 |  | Radiolab | WNYC Studios | |
| 11 | 5 | T | The Dairy Trail | Agriland Media | |
| 12 | 11 |  | Science Weekly | The Guardian | |
| 13 | 38 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 14 | 29 | T | The Animal Sensemaker | The Observer | |
| 15 | 41 |  | BBC Inside Science | BBC Radio 4 | |
| 16 | 7 | F | Futureproof with Jonathan McCrea | Newstalk | |
| 17 | 6 |  | The world, the universe and us | New Scientist | |
| 18 | 8 | B | Best Medicine | BBC Radio 4 | |
| 19 | 7 |  | Invisibilia | NPR | |
| 20 | 74 | F | Farming for Nature | Farming for Nature | |
| 21 | 7 | L | Leaving Cert Biology Revision | Mr G. O'Donovan | |
| 22 | 9 |  | ScienceStuff | iHeartPodcasts | |
| 23 | 8 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 24 | 89 | I | In Your Nature | By BirdWatch Ireland | |
| 25 | 73 |  | Opinionated History of Mathematics | Intellectual Mathematics | |
| 26 | 98 |  | The Eco Well podcast | Jen@theecowell | |
| 27 | 10 | L | Love The Bees Podcast | Yvonne Johnston | |
| 28 | 115 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 29 | 128 | C | Changing Minds with Owen Fitzpatrick | Owen Fitzpatrick | |
| 30 | 163 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 31 | 166 |  | Dr Karl Podcast | triplej | |
| 32 | 14 |  | Curious Cases | BBC Radio 4 | |
| 33 | — |  | Mind & Life | Mind & Life Institute | |
| 34 | 160 | ' | 'Mind the Kids': an ACAMH podcast | The Association for Child and Adolescent Mental Health | |
| 35 | — |  | CREOGs Over Coffee | CREOGs Over Coffee | |
| 36 | — |  | Science Vs | Spotify Studios | |
| 37 | 21 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 38 | — |  | Astronomy Cast | Fraser Cain and Dr. Pamela Gay | |
| 39 | — | N | New Scientist Weekly | New Scientist | |
| 40 | — |  | Star Diary | BBC Sky at Night Magazine | |
| 41 | — | T | The Rounds Table | Dr. John Fralick and Dr. Michael Fralick | |
| 42 | — | T | Tom Nelson | Thomas Nelson | |
| 43 | — |  | Science Will Win | Pfizer | |
| 44 | — |  | Pale Blue Pod | Multitude | |
| 45 | — | N | New Books in Language | Marshall Poe | |
| 46 | — |  | Navigating Neuropsychology | John Bellone & Ryan Van Patten - NavNeuro | |
| 47 | — | P | Pete the Vet's Podcast | Pete Wedderburn | |
| 48 | — |  | Palabra Plena, con Gabriel Rolón | Infobae | |
| 49 | 25 |  | Clearer Thinking with Spencer Greenberg | Spencer Greenberg | |
| 50 | 29 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 51 | 25 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 52 | 25 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 53 | 25 |  | BrainStuff | iHeartPodcasts | |
| 54 | 25 | T | The Met Éireann Podcast | Met Éireann | |
| 55 | 36 |  | Where Inches Matter by Agraforum | Agraforum NZ | |
| 56 | 26 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 57 | 26 |  | Cool Worlds Podcast | coolworldslab | |
| 58 | 23 |  | CrowdScience | BBC World Service | |
| 59 | 27 |  | This Week in Cardiology | Medscape | |
| 60 | 27 |  | Overheard at National Geographic | National Geographic | |
| 61 | 27 |  | Kosmographia | Randall Carlson | |
| 62 | 26 |  | Curiosity Weekly | Discovery | |
| 63 | 24 |  | The Astrophysics Podcast | Paul Duffell | |
| 64 | 24 |  | Geopop - Le Scienze nella vita di tutti i giorni | Geopop | |
| 65 | 19 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 66 | 28 |  | Unexplainable | Vox | |
| 67 | 30 | T | The Sports Coaching Hub Podcast | Cardiff Metropolitan University | |
| 68 | 24 | N | Nature Magic | Mary Bermingham | |
| 69 | 28 | T | Transformation in Trials | Sam Parnell & Ivanna Rosendal | |
| 70 | 28 | A | A Light On | A Light On | |
| 71 | 26 |  | Clinical Trialblazers | Parexel | |
| 72 | 25 |  | Ground Truths | Eric Topol | |
| 73 | 25 | F | Foresting Tomorrow | Foresting Tomorrow | |
| 74 | 25 |  | The Weirdest Thing I Learned This Week | Popular Science | |
| 75 | 25 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 76 | 3 |  | Science In Action | BBC World Service | |
| 77 | 24 |  | Short Wave | NPR | |
| 78 | 24 |  | Accidental Gods | Accidental Gods | |
| 79 | 24 |  | The Best of Coast to Coast AM | iHeartPodcasts and Coast to Coast AM | |
| 80 | 30 |  | Mysterious Universe | 8th Kind | |
| 81 | 24 | C | Conversation Beneath The Trees | Conversation Beneath The Trees | |
| 82 | 24 | J | Jon Richardson and the Futurenauts | Keep It Light Media | |
| 83 | 24 |  | Psychoanalysis & You | APsA American Psychoanalytic Association | |
| 84 | 24 |  | AcresUSA: Tractor Time | Tractor Time by Acres U.S.A. | |
| 85 | 24 | T | Two Psychologists Four Beers | Yoel Inbar, Michael Inzlicht, and Alexa Tullett | |
| 86 | 24 | G | Geoengineering Watch Global Alert News | Dane Wigington | |
| 87 | 24 | S | Safari Stories | Trunks and Tracks | |
| 88 | 24 | I | Irish Wildlife Trust | Irish Wildlife Trust | |
| 89 | 24 | W | Women In Sustainability | Efeca | |
| 90 | 24 |  | The LIUniverse with Dr. Charles Liu | theliuniverse | |
| 91 | 24 | P | PharmaSource Podcast | Life Science Networks | |
| 92 | 21 |  | Brain Science with Ginger Campbell, MD: Neuroscience for Everyone | Ginger Campbell, MD | |
| 93 | 25 | M | miłosz brzeziński | miłosz brzeziński | |
| 94 | 25 |  | Big Brains | University of Chicago Podcast Network | |
| 95 | 25 |  | Green Dreamer: Seeding change towards collective healing, sustainability, regeneration | kaméa chayne | |
| 96 | 24 |  | My Big TOE by Thomas Campbell - Unifying Mind and Matter | Thomas Campbell together with the MBT Volunteers | |
| 97 | 24 |  | What Remains | WRAL News | Raleigh, North Carolina | |
| 98 | 24 | N | Naked Neuroscience, from the Naked Scientists | James Tytko | |
| 99 | 24 | S | See See by Ceci | Dr. Cecilia Ponce Rivera | |
| 100 | 24 | L | Life Science Solutions | Kymanox | |
