| 1 | 1 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 2 | 1 |  | Curious Cases | BBC Radio 4 | |
| 3 | 1 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 4 | 1 |  | Making Sense with Sam Harris | Sam Harris | |
| 5 | 2 |  | Radiolab | WNYC Studios | |
| 6 | 7 |  | Ologies with Alie Ward | Alie Ward | |
| 7 | 7 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 8 | 9 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 9 | 1 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 10 | 4 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 11 | — |  | Science Vs | Spotify Studios | |
| 12 | 5 |  | All In The Mind | ABC | |
| 13 | 3 |  | Science Weekly | The Guardian | |
| 14 | 5 |  | BBC Inside Science | BBC Radio 4 | |
| 15 | 3 |  | More or Less | BBC Radio 4 | |
| 16 | 36 |  | Accidental Gods | Accidental Gods | |
| 17 | 8 |  | Overheard at National Geographic | National Geographic | |
| 18 | 6 |  | 5 Live Science Podcast | BBC Radio 5 Live | |
| 19 | 4 | O | Our Changing World | RNZ | |
| 20 | 87 | S | Shirtloads of Science | Dr Karl Kruszelnicki | |
| 21 | 1 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 22 | — | B | blurbs | Matt Ross | |
| 23 | 4 |  | Discovery | BBC World Service | |
| 24 | 8 | D | DOC Sounds of Science Podcast | Department of Conservation | |
| 25 | — | T | The Best of Making Sense with Sam Harris | Sam Harris | |
| 26 | 11 |  | Rewilding the World with Ben Goldsmith | Ben Goldsmith | |
| 27 | 9 |  | Science In Action | BBC World Service | |
| 28 | 34 |  | Short Wave | NPR | |
| 29 | 7 |  | CrowdScience | BBC World Service | |
| 30 | 13 |  | The Science of Birds | Ivan Phillipsen | |
| 31 | 33 |  | The world, the universe and us | New Scientist | |
| 32 | — | K | Ko Papa Ko Rangi: Ahi Kaa | The Spinoff | |
| 33 | — | H | Hauraki Gulf Kōrero | Alex Rogers | |
| 34 | — |  | SuperHumanizer Podcast | Dr. Hani Chaabo & Katie Bogen M.A. | |
| 35 | — | B | Big Sky Country | Bush Heritage Australia | |
| 36 | 13 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 37 | 35 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 38 | 17 | W | What The Duck?! | ABC | |
| 39 | 7 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 40 | 7 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 41 | 13 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 42 | 10 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 43 | 53 | T | The Huw Richards Show | Huw Richards | |
| 44 | 57 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 45 | — |  | The Best of Coast to Coast AM | iHeartPodcasts and Coast to Coast AM | |
| 46 | 113 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 47 | 21 |  | Origin Stories | The Leakey Foundation | |
| 48 | 89 | N | New Books in Sociology | New Books Network | |
| 49 | — |  | You Are Not So Smart | You Are Not So Smart | |
| 50 | 95 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 51 | 24 |  | The Science Show | ABC | |
| 52 | — |  | Sasquatch Odyssey | Sasquatch Odyssey-Bigfoot Encounters | |
| 53 | — | A | AnthroBiology Podcast | Gaby Lapera | |
| 54 | — | N | Nocturnal Worlds | Audiocraft | |
| 55 | 127 |  | The Episodic Table of Elements | T. R. Appleton | |
| 56 | — |  | Science Fictions | Tom Chivers and Stuart Ritchie | |
| 57 | 28 |  | Speaking of Psychology | American Psychological Association | |
| 58 | — |  | Tiny Matters | Multitude | |
| 59 | — | W | Weekend Birder | Kirsty Costa | |
| 60 | — | R | Rewilding In Action | Maureen Howard | |
| 61 | — | D | Der Rechtsstaat | Kontrafunk | |
| 62 | — |  | Creature Feature | iHeartPodcasts | |
| 63 | — |  | The Futurists | Brett King, JP Nicols, Jason Henrichs | |
| 64 | — | T | The Jewel of Arabia Expedition | Adventurous Audio | |
| 65 | — | P | Plants are People too: Botany Podcast | Tom Groves | |
| 66 | — |  | The Human Progress Podcast | HumanProgress.org | |
| 67 | — | A | Astronomy Astrophiz Podcasts | Astrophiz | |
| 68 | — |  | Physics World Weekly Podcast | Physics World | |
| 69 | — | N | New Books in Anthropology | New Books Network | |
| 70 | 40 | V | Voice of Tangaroa | RNZ | |
| 71 | — |  | The 21CD Podcast | The 21CD Podcast | |
| 72 | — |  | Flash Forward | Rose Eveleth | |
| 73 | — | T | The Human Subject | BBC Radio 4 | |
| 74 | — |  | Species | mackenmurphy.org | |
| 75 | — |  | Brookings Podcast on Economic Activity | The Brookings Institution | |
| 76 | — | P | Pogi Podcast | Pogátsa Zoltán | |
| 77 | — | W | What is The Future for Cities? | Fanni Melles | |
| 78 | — | N | NPP BrainPod | Springer Nature | |
| 79 | — | N | Naked Scientists NewsFLASH | Dr Chris Smith | |
| 80 | — | T | The Feel Good Birder Podcast | Jimmy Rosebrock | |
| 81 | — | T | The Book Case | Scott Miller and Dan Lewis | |
| 82 | 43 |  | Unexpected Elements | BBC World Service | |
| 83 | 52 | C | Chris Skinner's Countryside Podcasts | High Ash Farm | |
| 84 | 50 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 85 | 50 |  | Nature Podcast | Springer Nature Limited | |
| 86 | 50 |  | Lingthusiasm - A podcast that's enthusiastic about linguistics | Gretchen McCulloch and Lauren Gawne | |
| 87 | 40 |  | The Confessionals | Merkel Media | |
| 88 | 46 |  | Big Picture Science | Big Picture Science | |
| 89 | 30 | G | Goodfellow Unit | The Goodfellow Unit (University of Auckland) | |
| 90 | 10 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 91 | 33 |  | Dr Karl Podcast | triplej | |
| 92 | 48 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 93 | 55 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 94 | 54 |  | The Hamilton Morris Podcast | Hamilton Morris | |
| 95 | 47 | F | Farming Today | BBC Radio 4 | |
| 96 | 51 |  | Invisibilia | NPR | |
| 97 | 56 |  | How We're Wired | The Bertarelli Foundation | |
| 98 | 37 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 99 | 44 | T | Two Psychologists Four Beers | Yoel Inbar, Michael Inzlicht, and Alexa Tullett | |
| 100 | 13 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
