| 1 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 2 | 2 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 3 | 1 |  | Making Sense with Sam Harris | Sam Harris | |
| 4 | 1 |  | Radiolab | WNYC Studios | |
| 5 | — |  | Ologies with Alie Ward | Alie Ward | |
| 6 | 1 | B | Boring History for Sleep | Velvet | |
| 7 | 1 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 8 | 22 |  | Science Weekly | The Guardian | |
| 9 | — |  | Curious Cases | BBC Radio 4 | |
| 10 | 4 |  | Unexplainable | Vox | |
| 11 | 1 |  | All In The Mind | ABC | |
| 12 | 9 |  | Discovery | BBC World Service | |
| 13 | 29 | G | Goodfellow Unit | The Goodfellow Unit (University of Auckland) | |
| 14 | 2 |  | More or Less | BBC Radio 4 | |
| 15 | 167 |  | The Orthobullets Podcast | Orthobullets | |
| 16 | 17 | O | Our Changing World | RNZ | |
| 17 | 14 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 18 | 7 |  | BBC Inside Science | BBC Radio 4 | |
| 19 | 7 |  | Unknowns | OER Project | |
| 20 | 2 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 21 | 3 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 22 | 22 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 23 | 12 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 24 | 11 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 25 | 128 |  | Regenerative Agriculture Podcast | John Kempf | |
| 26 | 12 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 27 | 4 | D | DOC Sounds of Science Podcast | Department of Conservation | |
| 28 | 60 |  | The Episodic Table of Elements | T. R. Appleton | |
| 29 | 2 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 30 | 14 |  | Alive Again | iHeartPodcasts | |
| 31 | 11 |  | Unexpected Elements | BBC World Service | |
| 32 | 16 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 33 | 18 | W | What The Duck?! | ABC | |
| 34 | 57 |  | Navigating Neuropsychology | John Bellone & Ryan Van Patten - NavNeuro | |
| 35 | 18 |  | Giant Leap with Taylor Wilson | Giant Leap | |
| 36 | 17 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 37 | 81 |  | The Michael Shermer Show | Michael Shermer | |
| 38 | 5 | O | Open Country | BBC Radio 4 | |
| 39 | 137 |  | Skeptics with a K | Skeptic Media Limited | |
| 40 | 115 |  | Science & Futurism with Isaac Arthur | Isaac Arthur | |
| 41 | — |  | Beyond the Ice | British Antarctic Survey | |
| 42 | 17 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 43 | — |  | The Science of Everything Podcast | James Fodor | |
| 44 | — | P | Planthropology | Vikram Baliga, PhD | |
| 45 | 27 |  | The world, the universe and us | New Scientist | |
| 46 | 1 |  | CrowdScience | BBC World Service | |
| 47 | — | T | The Weather That Changed Us | ABC | |
| 48 | — |  | Dharma Lab | Dharma Lab | |
| 49 | — |  | AcresUSA: Tractor Time | Tractor Time by Acres U.S.A. | |
| 50 | — | J | Just a GP | Just a GP | |
| 51 | — | P | Plants and Pipettes | Joram Schwartzmann and Tegan Armarego-Marriott | |
| 52 | 27 |  | The Hamilton Morris Podcast | Hamilton Morris | |
| 53 | 53 |  | The Climate Question | BBC World Service | |
| 54 | 36 |  | WEAPONIZED with Jeremy Corbell & George Knapp | Jeremy Corbell and George Knapp | |
| 55 | 27 | T | The New Zealand General Practice Podcast | Dr Jo Scott-Jones | |
| 56 | 16 |  | Science Vs | Spotify Studios | |
| 57 | 59 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 58 | 26 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 59 | 23 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 60 | 19 |  | Short Wave | NPR | |
| 61 | 32 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 62 | 24 | F | Farming Today | BBC Radio 4 | |
| 63 | 8 |  | Science In Action | BBC World Service | |
| 64 | 30 |  | Robinson's Podcast | Robinson Erhardt | |
| 65 | 26 |  | Speaking of Psychology | American Psychological Association | |
| 66 | 29 | E | Elemental | RNZ | |
| 67 | 83 |  | The Psychology Podcast | iHeartPodcasts | |
| 68 | 19 |  | New Books in Critical Theory | Marshall Poe | |
| 69 | 130 |  | Mysterious Universe | 8th Kind | |
| 70 | 118 | T | The Deep-Sea Podcast | Thomas Linley | |
| 71 | 24 |  | Razib Khan's Unsupervised Learning | Razib Khan | |
| 72 | 22 |  | Outside/In | NHPR | |
| 73 | 22 |  | Physics World Weekly Podcast | Physics World | |
| 74 | — | N | Nocturnal Worlds | Audiocraft | |
| 75 | 29 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 76 | 18 | S | Small Islands Big Picture | ODI Resilient and Sustainable Islands Initiative (RESI) | |
| 77 | — | T | The Decision Lab Podcast | The Decision Lab | |
| 78 | 21 | 9 | 95bFM: Dear Science | 95bFM | |
| 79 | 27 |  | Podcast UFO | Martin Willis | |
| 80 | — |  | Environment, Climate Change, Renewable Energy, Regeneration, Sustainability, Nature, Politics, Circular Economy - One Planet | Environmental Solutions - One Planet Podcast - Creative Process Original Series | |
| 81 | — |  | The Social Work Podcast | Jonathan B. Singer, Ph.D., LCSW | |
| 82 | 26 | Q | Quantum Physics for Kids | Subatomic Tanvi | |
| 83 | 30 | M | Making Science with Tom Whipple | The Times | |
| 84 | 30 | 1 | 1202 - The Human Factors Podcast | Barry Kirby C.ErgHF FCIEHF | |
| 85 | — | A | AnthropoScene | Elianne Gutierrez | |
| 86 | — | 【 | 【生物老師聊自然】小故事，談生態 | 小虎老師 | |
| 87 | — | T | The Structural Engineering Podcast | Zach and Max | |
| 88 | — | S | Sustainability Radio | Sustainable Business Council | |
| 89 | 29 |  | You Are Not So Smart | You Are Not So Smart | |
| 90 | 31 | S | Streets In The Sky | Cambridge Public Heath | |
| 91 | 28 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 92 | 30 |  | Let's Learn Everything! | Maximum Fun | |
| 93 | — |  | PlanetGeo: The Geology Podcast | Chris and Jesse | |
| 94 | 24 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 95 | 34 | B | Be Reasonable | Merseyside Skeptics Society | |
| 96 | 32 | N | Native New Zealand | Christ's College Department of English and Media Studies | |
| 97 | 32 |  | The Couples Therapist Couch | Shane Birkel | |
| 98 | 26 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 99 | 32 |  | Somewhere in the Skies | SpectreVision Radio | |
| 100 | 32 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
