| 1 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | — |  | Making Sense with Sam Harris | Sam Harris | |
| 3 | 3 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 4 | 3 |  | Unexplainable | Vox | |
| 5 | 2 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 6 | 2 |  | Radiolab | WNYC Studios | |
| 7 | 2 |  | Ologies with Alie Ward | Alie Ward | |
| 8 | — |  | The Naked Scientists Podcast | The Naked Scientists | |
| 9 | 36 |  | Curious Cases | BBC Radio 4 | |
| 10 | 1 |  | More or Less | BBC Radio 4 | |
| 11 | 50 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 12 | 2 |  | The Psychology Podcast | iHeartPodcasts | |
| 13 | 56 |  | CREOGs Over Coffee | CREOGs Over Coffee | |
| 14 | 68 |  | Speaking of Psychology | American Psychological Association | |
| 15 | — | V | VoxDev Development Economics | VoxDev.org | |
| 16 | — | S | Stanford Psychology Podcast | Stanford Psychology | |
| 17 | 6 |  | Blurry Creatures | Blurry Creatures | |
| 18 | 9 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 19 | 6 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 20 | 17 |  | Freakonomics, M.D. | Freakonomics Radio + Stitcher | |
| 21 | 18 |  | Grazing Grass Podcast sharing Regenerative Ag Stories | Grazing Grass | |
| 22 | — |  | Why Do We Do That? | BBC Radio 4 | |
| 23 | 10 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 24 | 41 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 25 | 13 | T | The Best of Making Sense with Sam Harris | Sam Harris | |
| 26 | 63 |  | Short Wave | NPR | |
| 27 | 52 |  | SciShow Tangents | Complexly | |
| 28 | 71 |  | Science Quickly | Scientific American | |
| 29 | 49 |  | CrowdScience | BBC World Service | |
| 30 | 61 |  | The Geography of Everything | Ronni Ravid & Zenne Hellinga | |
| 31 | 14 |  | Science Weekly | The Guardian | |
| 32 | 18 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 33 | 103 |  | All In The Mind | ABC | |
| 34 | — |  | The Couples Therapist Couch | Shane Birkel | |
| 35 | 112 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 36 | 21 |  | Discovery | BBC World Service | |
| 37 | 134 |  | Astrum Space | Astrum | |
| 38 | 131 | T | The Human Behavior Podcast | The Human Behavior Podcast | |
| 39 | 21 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 40 | — | M | Mushroom Revival Podcast | Alex Dorr | |
| 41 | 25 | N | New Books in Anthropology | New Books Network | |
| 42 | 12 | S | Students of Surgery | Martin Brand | |
| 43 | — |  | Cosmic Quickies with KP | Kalpana Pot (KP) | |
| 44 | — |  | This Week in Cardiology | Medscape | |
| 45 | — | R | Real Science Exchange-Dairy | Balchem Animal Nutrition & Health | |
| 46 | — |  | Biotech 2050 Podcast | Biotech 2050 | |
| 47 | — |  | Astronomy Cast | Fraser Cain and Dr. Pamela Gay | |
| 48 | — |  | Hillbilly Horror Stories Paranormal Podcast | Jerry Paulley | |
| 49 | 27 | T | The Birding Life Podcast Network | The Birding Life Podcast Network | |
| 50 | 9 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 51 | 32 |  | The Weirdest Thing I Learned This Week | Popular Science | |
| 52 | 28 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 53 | 1 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 54 | 34 | T | The Poultry Nutrition Blackbelt Podcast | Wisenetix | |
| 55 | 34 | N | New Scientist Weekly | New Scientist | |
| 56 | 1 |  | TheThinkingAtheist | The Thinking Atheist | |
| 57 | 13 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 58 | 38 |  | Unexpected Elements | BBC World Service | |
| 59 | 34 | B | BJA Education Podcasts | BJA Education | |
| 60 | 24 |  | The Wild with Chris Morgan | KUOW News and Information | |
| 61 | 13 |  | Science Vs | Spotify Studios | |
| 62 | 35 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 63 | 37 | T | The We Society | AcSS | |
| 64 | 30 |  | Choiceology with Katy Milkman | Charles Schwab | |
| 65 | 37 | W | World Bank Group │ What Have We Learned? The Evaluation Podcast | World Bank Group / Independent Evaluation Group | |
| 66 | 37 |  | You Are Not So Smart | You Are Not So Smart | |
| 67 | 36 |  | The Geonomics Podcast | Dr Alex Dickinson | |
| 68 | 28 |  | So Cultured Podcast | Liv Grant & Taz Shipley | |
| 69 | 13 |  | Nephilim Death Squad | TopLobsta Productions | |
| 70 | 23 | A | Ask the Naked Scientists | Dr Chris Smith | |
| 71 | 39 | S | Simplifying Complexity | Sean Brady from Brady Heywood | |
| 72 | 37 |  | Science Fictions | Tom Chivers and Stuart Ritchie | |
| 73 | 32 |  | Statistics Made Simple | Brad R. Fulton, PhD | |
| 74 | 32 | O | Occupational Psychology | School of Psychology, University of Leicester | |
| 75 | 32 |  | This Is Your Brain With Dr. Phil Stieg | Weill Cornell Medicine Neurological Surgery | |
| 76 | 12 |  | Wild Times: Wildlife Education | Wildlife Educator - Forrest Galante | |
| 77 | 15 |  | HOLOSKY PODCAST | Holosky Podcast | |
| 78 | 2 |  | Science Friday | Science Friday and WNYC Studios | |
| 79 | 33 |  | Speed & Scale | TED | |
| 80 | 42 |  | Neuroscience: Amateur Hour | Neuroscience: Amateur Hour | |
| 81 | 26 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 82 | 32 |  | Physics World Weekly Podcast | Physics World | |
| 83 | 31 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 84 | 31 |  | BBC Inside Science | BBC Radio 4 | |
| 85 | 15 |  | Radiowissen | Bayerischer Rundfunk | |
| 86 | 19 |  | New Books in Critical Theory | Marshall Poe | |
| 87 | 30 |  | Multiverse 5D @ M5D | Multiverse 5D Network | |
| 88 | 2 |  | Universe Today Podcast | Fraser Cain | |
| 89 | 1 |  | Relebogile Mabotja hosts The Naked Scientist | Radio 702 | |
| 90 | 27 |  | Accidental Gods | Accidental Gods | |
| 91 | 25 |  | Ancient Aliens | PodcastOne | |
| 92 | 22 |  | Nature Podcast | Springer Nature Limited | |
| 93 | 25 | S | Scientists at Sea | Exeter Marine | |
| 94 | 25 |  | The Michael Shermer Show | Michael Shermer | |
| 95 | 24 | C | Climate Connections | Yale Center for Environmental Communication | |
| 96 | 24 | S | Sum of All Parts | ABC listen | |
| 97 | 24 |  | Juan on Juan | Juan on Juan Media, LLC. | |
| 98 | 24 |  | Water Women | Water Women | |
| 99 | 24 | S | Science, Spoken | WIRED | |
| 100 | 24 | S | Sustainability Leaders Series | Yale Center for Business and the Environment | |
