| 1 | — |  | Ologies with Alie Ward | Alie Ward | |
| 2 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 3 | — |  | Making Sense with Sam Harris | Sam Harris | |
| 4 | 5 |  | BBC Inside Science | BBC Radio 4 | |
| 5 | 1 |  | Curious Cases | BBC Radio 4 | |
| 6 | — |  | All In The Mind | ABC | |
| 7 | 47 |  | CrowdScience | BBC World Service | |
| 8 | 3 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 9 | 6 |  | More or Less | BBC Radio 4 | |
| 10 | 7 |  | Radiolab | WNYC Studios | |
| 11 | 2 |  | Science Weekly | The Guardian | |
| 12 | 4 |  | Science In Action | BBC World Service | |
| 13 | 2 | O | Our Changing World | RNZ | |
| 14 | 72 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 15 | 8 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 16 | 9 |  | Discovery | BBC World Service | |
| 17 | 5 |  | Unexplainable | Vox | |
| 18 | 11 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 19 | 4 |  | Science Fictions | Tom Chivers and Stuart Ritchie | |
| 20 | 7 |  | Unexpected Elements | BBC World Service | |
| 21 | 63 |  | Science Vs | Spotify Studios | |
| 22 | 10 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 23 | 40 |  | Manifold | Steve Hsu | |
| 24 | 10 | G | Goodfellow Unit | The Goodfellow Unit (University of Auckland) | |
| 25 | 15 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 26 | 40 |  | The Climate Question | BBC World Service | |
| 27 | 61 |  | The Life Scientific | BBC Radio 4 | |
| 28 | 20 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 29 | 129 |  | Blurry Creatures | Blurry Creatures | |
| 30 | — |  | Head Shepherd | Mark Ferguson | |
| 31 | 15 |  | Grey Dynamics | Grey Dynamics | |
| 32 | 97 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 33 | 99 |  | Main Engine Cut Off | Anthony Colangelo | |
| 34 | 16 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 35 | 14 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 36 | — | Q | Quilo de Ciencia - Cienciaes.com | Jorge Laborda | |
| 37 | 156 | K | Ko Papa Ko Rangi: Ahi Kaa | The Spinoff | |
| 38 | 150 | E | Elemental | RNZ | |
| 39 | 151 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 40 | — |  | Geology Bites | Oliver Strimpel | |
| 41 | — | T | The Biotech Podcast | Harry B Houston | |
| 42 | — | G | Gross Anatomy | Gross Anatomy Podcast | |
| 43 | 24 | B | Boring History for Sleep | Velvet | |
| 44 | 24 | T | The New Zealand General Practice Podcast | Dr Jo Scott-Jones | |
| 45 | 16 |  | The world, the universe and us | New Scientist | |
| 46 | 18 |  | The Quanta Podcast | Quanta Magazine | |
| 47 | 23 |  | Skeptoid | Brian Dunning | |
| 48 | 22 |  | Overheard at National Geographic | National Geographic | |
| 49 | 132 |  | Wild Sounds: Kākāpō Files II | RNZ | |
| 50 | 16 |  | Clinician's Brief: The Podcast | Clinician's Brief | |
| 51 | — | F | Farming Today | BBC Radio 4 | |
| 52 | 20 |  | In Defense of Plants Podcast | In Defense of Plants | |
| 53 | 17 | W | Why? with Emma Kennedy | Podmasters | |
| 54 | 23 |  | That's Just Wild | Fresh Air | |
| 55 | — |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 56 | 23 |  | Das Wissen | SWR | SWR | |
| 57 | 13 |  | Patterns Tell Stories | UFOs & High Strangeness | KLAɄЅ & GΔRRΞTT | |
| 58 | 16 |  | Taboo Science | Ashley Hamer Pritchard | |
| 59 | 19 | S | Spektrum-Podcast | detektor.fm – Das Podcast-Radio | |
| 60 | 25 |  | Freakonomics, M.D. | Freakonomics Radio + Stitcher | |
| 61 | 24 | S | Spooky Psychology | Lauren Mollica and Megan Baker | |
| 62 | — | B | blurbs | Matt Ross | |
| 63 | 25 |  | AWESOME ASTRONOMY | Paul & Dr Jeni | |
| 64 | 25 | S | Synapsen – ein Wissenschaftspodcast | NDR Info | |
| 65 | 24 |  | Materialism: A Materials Science Podcast | Taylor Sparks and Andrew Falkowski | |
| 66 | 18 |  | Alive Again | iHeartPodcasts | |
| 67 | 24 | S | Spellbound and Gagged | Ellen Weatherford | |
| 68 | 19 |  | The Plodcast | Our Media | |
| 69 | 13 |  | Skeptics with a K | Skeptic Media Limited | |
| 70 | 20 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 71 | 20 |  | Eons: Surviving Deep Time | PBS | |
| 72 | 20 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 73 | 20 | D | DOC Sounds of Science Podcast | Department of Conservation | |
| 74 | 9 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 75 | 18 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 76 | 7 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 77 | 19 |  | Drilled | Pushkin Industries | |
| 78 | 7 | T | The Al & Juddy Show | Agricom | |
| 79 | 20 |  | The Nature Of with Willow Defebaugh | Atmos | |
| 80 | 20 |  | People Helping Nature Podcast | Conservation Amplified | |
| 81 | 18 |  | Universe Today Podcast | Fraser Cain | |
| 82 | 14 |  | Green Dreamer: Seeding change towards collective healing, sustainability, regeneration | kaméa chayne | |
| 83 | 19 | F | Fight for the Wild | RNZ | |
| 84 | 22 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 85 | 16 | N | Nature Conversations: Dr. Adam Forbes Interviews the Experts | Dr Adam Forbes | |
| 86 | 12 | T | The Social Work Stories Podcast | The Social Work Stories Team | |
| 87 | 15 | N | Nature Fix | National Trust | |
| 88 | 18 |  | Soils For Life | Soils For Life | |
| 89 | 22 |  | You Are Not So Smart | You Are Not So Smart | |
| 90 | 17 |  | Science History Podcast | Frank A. von Hippel | |
| 91 | 12 |  | 地球真好玩 | 日谈公园 | |
| 92 | 17 |  | The Mushroom Hour Podcast | Mushroom Hour | |
| 93 | 6 |  | Scotland Outdoors | BBC Radio Scotland | |
| 94 | 18 | A | AnthropoScene | Elianne Gutierrez | |
| 95 | 13 |  | The Common Descent Podcast | Common Descent | |
| 96 | 19 | L | Law at the End of the World | Elizabeth Macpherson and Cristy Clark | |
| 97 | 19 |  | The Joy of x | Steven Strogatz and Quanta Magazine | |
| 98 | 18 | E | Edge of the Hedge | Hannah Sylvester | |
| 99 | 14 |  | Your Brain On | Drs. Ayesha and Dean Sherzai | |
| 100 | 19 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
