| 1 | — |  | All In The Mind | ABC | |
| 2 | 4 |  | Ologies with Alie Ward | Alie Ward | |
| 3 | 4 |  | Making Sense with Sam Harris | Sam Harris | |
| 4 | 4 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 5 | 3 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 6 | 2 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 7 | 4 |  | Radiolab | WNYC Studios | |
| 8 | 3 |  | Curious Cases | BBC Radio 4 | |
| 9 | 2 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 10 | 33 |  | Science Vs | Spotify Studios | |
| 11 | 18 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 12 | 3 |  | Science Weekly | The Guardian | |
| 13 | 1 |  | BBC Inside Science | BBC Radio 4 | |
| 14 | — |  | More or Less | BBC Radio 4 | |
| 15 | 5 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 16 | 10 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 17 | — |  | Discovery | BBC World Service | |
| 18 | 5 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 19 | 1 |  | The world, the universe and us | New Scientist | |
| 20 | 10 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 21 | 5 |  | Science In Action | BBC World Service | |
| 22 | 7 |  | CrowdScience | BBC World Service | |
| 23 | — |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 24 | 6 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 25 | 6 |  | Unexplainable | Vox | |
| 26 | 138 |  | Tiny Matters | Multitude | |
| 27 | 1 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 28 | — |  | Lost Women of Science | Lost Women of Science | |
| 29 | — |  | Das Wissen | SWR | SWR | |
| 30 | 9 |  | You Are Not So Smart | You Are Not So Smart | |
| 31 | 35 |  | The Optispan Podcast with Matt Kaeberlein | Optispan | |
| 32 | 55 |  | Universe Today Podcast | Fraser Cain | |
| 33 | 11 |  | Head Shepherd | Mark Ferguson | |
| 34 | 44 |  | Overheard at National Geographic | National Geographic | |
| 35 | 11 | D | DOC Sounds of Science Podcast | Department of Conservation | |
| 36 | 54 |  | Your Brain On | Drs. Ayesha and Dean Sherzai | |
| 37 | 86 |  | I Was Prey | Animal Planet | |
| 38 | 13 | O | Our Changing World | RNZ | |
| 39 | 12 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 40 | 138 | H | How To Save The World Podcast | Little Empire Podcasts | |
| 41 | 8 |  | Unexpected Elements | BBC World Service | |
| 42 | 8 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 43 | 8 | G | Goodfellow Unit | The Goodfellow Unit (University of Auckland) | |
| 44 | 113 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 45 | 13 |  | Bite Back with Abbey Sharp | Abbey Sharp / Frequency Podcast Network | |
| 46 | — |  | Mysterious Radio: Paranormal, UFO and Lore Interviews | Podcast Audio House | |
| 47 | — |  | The Grave Talks | Haunted, Paranormal & Supernatural | Ghost Stores, Haunted, Paranormal & Supernatural Stories | |
| 48 | — |  | Climate One | Climate One from The Commonwealth Club | |
| 49 | — |  | Rewilding the World with Ben Goldsmith | Ben Goldsmith | |
| 50 | — | O | OVERSHOOT | Shrink Toward Abundance | Population Balance | |
| 51 | — | W | Wound Care Conversations | Coloplast Professional | |
| 52 | — |  | The Rumen Room Podcasts | cwestwood | |
| 53 | — | B | blurbs | Matt Ross | |
| 54 | — |  | Research To Practice | Oncology Videos | Dr Neil Love | |
| 55 | — |  | Geology Bites | Oliver Strimpel | |
| 56 | — | T | The Hematologist | The Hematologist | |
| 57 | — |  | PlanetGeo: The Geology Podcast | Chris and Jesse | |
| 58 | 19 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 59 | — | U | Universal Disclosure Podcast (UAP / UFO Disclosure and our Belief Systems, Spirituality) | UAP Investigator Mike and Reverend Stu | |
| 60 | — |  | Critical Matters | Sound Physicians | |
| 61 | — |  | Ground Truths | Eric Topol | |
| 62 | — | S | Smooth Brain Society | Smooth Brain Society | |
| 63 | — |  | Care More Be Better: A Podcast For Sustainable Social Impact and Regeneration | Corinna Bellizzi | |
| 64 | — | C | Climate History Podcast | Dagomar Degroot | |
| 65 | — | I | Interconnected | Jake Robinson | |
| 66 | — |  | RSM River Mechanics Podcast | Stanford Gibson | |
| 67 | — | D | Dissectible Me 5 minute anatomy | dissectibleme | |
| 68 | 15 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 69 | 33 |  | Speaking of Psychology | American Psychological Association | |
| 70 | 25 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 71 | 29 |  | The Psychology Podcast | iHeartPodcasts | |
| 72 | 35 | R | Rewilding In Action | Maureen Howard | |
| 73 | 29 | E | Echoes of Impact | AUT Media | |
| 74 | 36 |  | Science Friday | Science Friday and WNYC Studios | |
| 75 | 34 | V | Voice of Tangaroa | RNZ | |
| 76 | 3 | B | Because Why?! The Science and Society Pod. | Brianne West | |
| 77 | 16 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 78 | 28 |  | The Orthobullets Podcast | Orthobullets | |
| 79 | 33 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 80 | 32 | T | The Science Of… | RNZ | |
| 81 | 25 |  | Science Friction | ABC | |
| 82 | 30 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 83 | 2 |  | The Climate Question | BBC World Service | |
| 84 | 33 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 85 | 38 |  | Decouple | Dr. Chris Keefer | |
| 86 | 18 |  | The Marginal Revolution Podcast | Mercatus Center at George Mason University | |
| 87 | 29 |  | Planetary Radio: Space Exploration, Astronomy and Science | The Planetary Society | |
| 88 | 25 |  | Believing the Bizarre: Paranormal Conspiracies & Myths | Tyler and Charlie | |
| 89 | 32 | T | The Best of Making Sense with Sam Harris | Sam Harris | |
| 90 | 36 | T | The Upper Hand: Chuck & Chris Talk Hand Surgery | Chuck and Chris | |
| 91 | 29 |  | Kosmographia | Randall Carlson | |
| 92 | 33 | P | Planet A - Talks on Climate Change | Danish Ministry of Climate, Energy and Utilities | |
| 93 | 33 | S | Sum of All Parts | ABC | |
| 94 | 20 | V | Vozes do Planeta | Vozes do Planeta Podcast | |
| 95 | 31 |  | Forever Chemicals | Black-Footed Ferret Productions, LLC | |
| 96 | 31 | M | Minds Matter | Beth Fisher and Ava Ma de Sousa | |
| 97 | 30 |  | De weg van de dodo | NPO Radio 1 / NTR | |
| 98 | 29 | N | New Books in Public Policy | New Books Network | |
| 99 | 29 | T | The Strange Road | Strange Road Creative, LLC | |
| 100 | 29 |  | NRC Onbehaarde Apen | NRC | |
