| 1 | 2 |  | Curious Cases | BBC Radio 4 | |
| 2 | 1 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 3 | 1 |  | Science Weekly | The Guardian | |
| 4 | — |  | Ologies with Alie Ward | Alie Ward | |
| 5 | 2 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 6 | — |  | Radiolab | WNYC Studios | |
| 7 | 24 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 8 | 8 |  | Overheard at National Geographic | National Geographic | |
| 9 | 2 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 10 | 2 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 11 | 102 |  | Unexplainable | Vox | |
| 12 | 7 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 13 | 7 | R | Richard Wiseman's On Your Mind | Podimo & TellTale | |
| 14 | 5 | F | Futureproof with Jonathan McCrea | Newstalk | |
| 15 | 13 |  | CrowdScience | BBC World Service | |
| 16 | 11 |  | Invisibilia | NPR | |
| 17 | 7 |  | Making Sense with Sam Harris | Sam Harris | |
| 18 | 31 |  | More or Less | BBC Radio 4 | |
| 19 | 3 |  | BBC Inside Science | BBC Radio 4 | |
| 20 | 8 |  | Science Vs | Spotify Studios | |
| 21 | 8 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 22 | 8 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 23 | 8 |  | Accidental Gods | Accidental Gods | |
| 24 | 7 |  | The world, the universe and us | New Scientist | |
| 25 | 82 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 26 | 110 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 27 | 8 |  | That UFO Podcast | That UFO Podcast | |
| 28 | 10 |  | Ecosystemic Futures | Dyan Finkhousen: CEO of Shoshin Works | |
| 29 | 8 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 30 | 118 |  | Ground Truths | Eric Topol | |
| 31 | — |  | World’s Wildest: Tales of Earth’s Most Extreme Creatures | Maya Higa & Connor O'Brien | |
| 32 | — |  | How We're Wired | The Bertarelli Foundation | |
| 33 | — |  | Need To Know | Bryce Zabel | |
| 34 | — | T | Tom MacSweeney's Maritime Podcast | Tom MacSweeney | |
| 35 | — |  | Speed & Scale | TED | |
| 36 | — | T | Talking Transfusion: The Transfusion Evidence Round-Up Podcast | ISBT | Int. Society of Blood Transfusion | |
| 37 | — |  | Os três elementos | Os três elementos / TocaCast | |
| 38 | 13 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 39 | 16 | W | Why? with Emma Kennedy | Podmasters | |
| 40 | 11 |  | Discovery | BBC World Service | |
| 41 | 17 |  | You Are Not So Smart | You Are Not So Smart | |
| 42 | 16 | I | In Your Nature | By BirdWatch Ireland | |
| 43 | 18 |  | COMPLEXITY | Santa Fe Institute | |
| 44 | 14 | T | The Jewel of Arabia Expedition | Adventurous Audio | |
| 45 | 38 |  | Science In Action | BBC World Service | |
| 46 | 13 |  | Space Nuts: Astronomy Insights & Cosmic Discoveries | Professor Fred Watson and Andrew Dunkley | |
| 47 | 7 |  | Houston We Have a Podcast | National Aeronautics and Space Administration (NASA) | |
| 48 | 14 |  | Drilled | Pushkin Industries | |
| 49 | 17 |  | Great Mysteries of Physics | The Conversation | |
| 50 | 13 |  | La Science, CQFD | France Culture | |
| 51 | 16 | S | Special Lecture Series (ASC) | The Arnold Sommerfeld Center for Theoretical Physics (ASC) | |
| 52 | 13 |  | Why Do We Do That? | BBC Radio 4 | |
| 53 | 8 |  | Frankly Speaking About Family Medicine | Pri-Med | |
| 54 | 16 | P | Paradigm | Matthew Geleta | |
| 55 | 12 |  | UAP Files Podcast | UAP Files Podcast | |
| 56 | 15 |  | Dr Giles Yeo Chews the Fat | Orion Publishing Ltd. | |
| 57 | 15 |  | The Grave Talks | Haunted, Paranormal & Supernatural | Ghost Stores, Haunted, Paranormal & Supernatural Stories | |
| 58 | 14 |  | Raising Health | Andreessen Horowitz, a16z Bio + Health | |
| 59 | 13 | H | Hablando con Científicos - Cienciaes.com | cienciaes.com | |
| 60 | 24 |  | Speaking of Psychology | American Psychological Association | |
| 61 | 14 |  | The Michael Shermer Show | Michael Shermer | |
| 62 | 14 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 63 | 21 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 64 | 14 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 65 | 7 |  | UFO Chronicles Podcast | Nik Hunter | |
| 66 | 14 |  | EverydaySpy Podcast | Andrew Bustamante | |
| 67 | 13 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 68 | 15 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 69 | 10 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 70 | 3 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 71 | 14 |  | Most Terrifying Places in America | Travel Channel | |
| 72 | 16 | C | Chris Skinner's Countryside Podcasts | High Ash Farm | |
| 73 | 18 |  | The Confessionals | Merkel Media | |
| 74 | 13 | B | Best of Natural History Radio | BBC Radio 4 | |
| 75 | 9 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 76 | 16 |  | Mysterious Radio: Paranormal, UFO and Lore Interviews | Podcast Audio House | |
| 77 | 9 | L | La Terre au carré | France Inter | |
| 78 | 14 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 79 | 17 |  | Sidenote by AsapSCIENCE | AsapSCIENCE | |
| 80 | 11 |  | Scotland Outdoors | BBC Radio Scotland | |
| 81 | 18 | T | The Alcohol 'Problem' Podcast | James Morris | |
| 82 | — | N | New Scientist Weekly | New Scientist | |
| 83 | 18 | T | The Sociology Show | Matthew Wilkin | |
| 84 | 12 | P | Psychology | Yale School of Medicine | |
| 85 | 15 | I | Intertek's Assurance in Action Podcast Network | Intertek | |
| 86 | 15 |  | Spacewalk with Everyday Astronaut | Tim Dodd | |
| 87 | 14 |  | Green Dreamer: Seeding change towards collective healing, sustainability, regeneration | kaméa chayne | |
| 88 | 14 | T | The Quantum Classroom: A Leaving Cert Science Podcast | Luke Turner and Tadhg Kennedy | |
| 89 | 14 | C | Clean Energy Pod | SSE | |
| 90 | 14 | T | The Cancer Trials Ireland Podcast | Cancer Trials Ireland | |
| 91 | 14 | M | Master Brewers Podcast | Master Brewers Association of the Americas (MBAA) | |
| 92 | 14 | T | The Upper Hand: Chuck & Chris Talk Hand Surgery | Chuck and Chris | |
| 93 | 14 | C | Creative Therapy Umbrella | Kate Shannon | |
| 94 | 14 | H | Hand Surgery Podcasts | Bruce I. Wintman, MD | |
| 95 | 14 | T | The Sid Warrier Podcast | Sid | |
| 96 | 14 |  | Robinson's Podcast | Robinson Erhardt | |
| 97 | 9 |  | The Climate Question | BBC World Service | |
| 98 | 13 |  | Razib Khan's Unsupervised Learning | Razib Khan | |
| 99 | 13 |  | All In The Mind | ABC | |
| 100 | 11 |  | Chemistry Made Simple | Matthew Macariou | |
