| 1 | 1 |  | Ologies with Alie Ward | Alie Ward | |
| 2 | 5 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 3 | 2 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 4 | 17 |  | Making Sense with Sam Harris | Sam Harris | |
| 5 | 4 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 6 | 3 |  | Science Vs | Spotify Studios | |
| 7 | 1 |  | More or Less | BBC Radio 4 | |
| 8 | 4 |  | Unexplainable | Vox | |
| 9 | 1 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 10 | 1 |  | Radiolab | WNYC Studios | |
| 11 | 5 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 12 | — |  | The Naked Scientists Podcast | The Naked Scientists | |
| 13 | 3 |  | Curious Cases | BBC Radio 4 | |
| 14 | 8 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 15 | 4 |  | Speaking of Psychology | American Psychological Association | |
| 16 | 3 | S | Students of Surgery | Martin Brand | |
| 17 | 2 |  | Discovery | BBC World Service | |
| 18 | 25 | W | Why? with Emma Kennedy | Podmasters | |
| 19 | 20 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 20 | 3 |  | Blurry Creatures | Blurry Creatures | |
| 21 | 7 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 22 | 20 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 23 | — |  | Brave New Planet | Pushkin Industries | |
| 24 | 142 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 25 | 162 |  | Ancient Aliens | PodcastOne | |
| 26 | 115 | P | Psychology | Yale School of Medicine | |
| 27 | 117 |  | iNTO THE FRAY RADIO - Encounters with the Paranormal | Shannon LeGro | |
| 28 | 10 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 29 | — |  | Dr Giles Yeo Chews the Fat | Orion Publishing Ltd. | |
| 30 | — |  | The Wild with Chris Morgan | KUOW News and Information | |
| 31 | — |  | Neuroscience: Amateur Hour | Neuroscience: Amateur Hour | |
| 32 | 13 |  | All In The Mind | ABC | |
| 33 | — |  | Grazing Grass Podcast sharing Regenerative Ag Stories | Grazing Grass | |
| 34 | 17 |  | The Science of Everything Podcast | James Fodor | |
| 35 | — |  | IFLScience - We Have Questions | iflsciencewehavequestions | |
| 36 | — | E | Economies that work - for all | United Nations System Staff College | |
| 37 | — | T | The Women in Ecology and Evolution Podcast | Dr Kirsty MacLeod | |
| 38 | 15 |  | Regenerative Agriculture Podcast | John Kempf | |
| 39 | 19 |  | The Psychology Podcast | iHeartPodcasts | |
| 40 | 4 |  | Science Weekly | The Guardian | |
| 41 | 72 |  | You Are Not So Smart | You Are Not So Smart | |
| 42 | 17 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 43 | 19 |  | Living Planet | DW | |
| 44 | 73 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 45 | 17 | B | BJA: British Journal of Anaesthesia | Rik Thomas, Podcast Editor | |
| 46 | — |  | The Quanta Podcast | Quanta Magazine | |
| 47 | 21 |  | Opinionated History of Mathematics | Intellectual Mathematics | |
| 48 | — | B | Best Medicine | BBC Radio 4 | |
| 49 | 11 | T | The Conservation Conversation (TCC) | Rumbidzai Takawira | |
| 50 | 23 | T | The Behavioural Ecology and Evolution Podcast (the Beepcast) | noreply@blogger.com (Unknown) | |
| 51 | 121 |  | When Science Finds a Way | Wellcome | |
| 52 | 23 | S | Safari Stories | Trunks and Tracks | |
| 53 | — |  | Brain Science with Ginger Campbell, MD: Neuroscience for Everyone | Ginger Campbell, MD | |
| 54 | 24 | T | The Zoology Ramblings Podcast | Robi Watkinson and Emma Hodson | |
| 55 | — |  | Science Rules! with Bill Nye | Stitcher & Bill Nye | |
| 56 | 25 |  | Here Weed Go! | Here Weed Go! | |
| 57 | 23 | A | Animal Talk Podcast | Ryne Ferguson and Ayrton King | |
| 58 | 26 | T | The Zoologists' Campfire | Dr. Arie van der Meijden | |
| 59 | 26 | T | The Carbon Connection | The Carbon Almanac Network | |
| 60 | 25 |  | The Nature Of with Willow Defebaugh | Atmos | |
| 61 | 25 |  | Wissen Weekly | Spotify Studios | |
| 62 | — |  | Ask a Spaceman! | Paul M. Sutter | |
| 63 | 26 | C | Costing the Earth | BBC Radio 4 | |
| 64 | 19 |  | The Orthobullets Podcast | Orthobullets | |
| 65 | 25 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 66 | 18 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 67 | 26 |  | AWESOME ASTRONOMY | Paul & Dr Jeni | |
| 68 | 10 |  | The Best of Coast to Coast AM | iHeartPodcasts and Coast to Coast AM | |
| 69 | 10 |  | Alive Again | iHeartPodcasts | |
| 70 | 23 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 71 | 25 |  | Proxy with Yowei Shaw | Y3 Productions | |
| 72 | 23 |  | ScienceStuff | iHeartPodcasts | |
| 73 | 25 | T | Technology and the Mind | Dr. Nicolle Zapien | |
| 74 | 12 |  | CrowdScience | BBC World Service | |
| 75 | 23 | W | Wild Connection | Hosted by Dr. Jennifer Verdolin | |
| 76 | 23 | C | Catholic Health Prayers and Reflections | Catholic Health Association of the United States | |
| 77 | 23 | T | The Monkey Dance | The Monkey Dance | |
| 78 | 23 |  | How We're Wired | The Bertarelli Foundation | |
| 79 | 23 | H | Hillbilly Horror Stories Paranormal Podcast | Jerry Paulley | |
| 80 | 23 | T | The Multi-Hazards Podcast | Vin Nelsen | |
| 81 | 16 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 82 | 22 |  | Bedtime Astronomy | Synthetic Universe | |
| 83 | 16 |  | Bite Back with Abbey Sharp | Abbey Sharp / Frequency Podcast Network | |
| 84 | 21 |  | New Books in Psychoanalysis | Marshall Poe | |
| 85 | 4 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 86 | 102 |  | Radiowissen | Bayerischer Rundfunk | |
| 87 | 26 |  | Mind & Life | Mind & Life Institute | |
| 88 | 19 |  | Invisibilia | NPR | |
| 89 | 23 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 90 | 35 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 91 | 23 |  | Geology Bites | Oliver Strimpel | |
| 92 | 23 |  | Science Friday | Science Friday and WNYC Studios | |
| 93 | 23 | E | Entangled Health | Thomas Ehmer | |
| 94 | 12 | B | Beyond Jaws: Exploring Shark Science and Conservation | Speak Up For Blue | |
| 95 | 2 |  | Real Ghost Stories Online | Real Ghost Stories Online | Paranormal, Supernatural & Horror Radio | |
| 96 | 14 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 97 | 33 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 98 | 27 | B | Biostatistics Podcast | Jocelyn Chen | |
| 99 | 19 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 100 | 12 | B | Boring History for Sleep | Velvet | |
