| 1 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | — |  | StarTalk Radio | Neil deGrasse Tyson | |
| 3 | 4 |  | Radiolab | WNYC Studios | |
| 4 | 1 |  | Unexplainable | Vox | |
| 5 | — |  | Ologies with Alie Ward | Alie Ward | |
| 6 | 2 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 7 | 3 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 8 | 2 |  | Making Sense with Sam Harris | Sam Harris | |
| 9 | — |  | Speaking of Psychology | American Psychological Association | |
| 10 | — |  | Science Weekly | The Guardian | |
| 11 | 40 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 12 | — |  | The Naked Scientists Podcast | The Naked Scientists | |
| 13 | 25 | S | Students of Surgery | Martin Brand | |
| 14 | 1 |  | Curious Cases | BBC Radio 4 | |
| 15 | 8 |  | The Psychology Podcast | iHeartPodcasts | |
| 16 | 5 |  | More or Less | BBC Radio 4 | |
| 17 | 2 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 18 | 11 |  | Discovery | BBC World Service | |
| 19 | 8 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 20 | — | C | Climate Change on Trial | Unreported Story Society | |
| 21 | 3 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 22 | 4 |  | BBC Inside Science | BBC Radio 4 | |
| 23 | 3 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 24 | 10 | S | Stanford Psychology Podcast | Stanford Psychology | |
| 25 | 44 | T | The Brain and Brand Show | Podcast Party | |
| 26 | 10 |  | Living Planet | DW | |
| 27 | 20 |  | CrowdScience | BBC World Service | |
| 28 | 5 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 29 | 21 |  | HOLOSKY PODCAST | Holosky Podcast | |
| 30 | 11 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 31 | 14 |  | ScienceStuff | iHeartPodcasts | |
| 32 | 10 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 33 | — |  | Health Wanted | WABE | |
| 34 | — | B | Beneath the Baobab | Jamma International | |
| 35 | 150 |  | Deep Insights with Mining Review Africa | Mining Review Africa | |
| 36 | 21 |  | The world, the universe and us | New Scientist | |
| 37 | — |  | DNA Today: A Genetics Podcast | Kira Dineen, Gene Pool Media | |
| 38 | 137 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 39 | — |  | Talking about Platforms | Daniel Trabucchi, Tommaso Buganza and Philip Meier | |
| 40 | — |  | Astronomy Cast | Fraser Cain and Dr. Pamela Gay | |
| 41 | — |  | Joint Approach | Musculoskeletal Infection Society | |
| 42 | — | T | The Biotech Startups Podcast | Excedr | |
| 43 | — |  | Medical Basics Podcast - Tips, Tricks, and Advice for Medical and Nursing Students | Medical Basics | |
| 44 | 12 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 45 | 20 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 46 | 22 |  | Neuroscience: Amateur Hour | Neuroscience: Amateur Hour | |
| 47 | 19 |  | Dr Karl Podcast | triplej | |
| 48 | 14 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 49 | 22 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 50 | 14 |  | 5 Live Science Podcast | BBC Radio 5 Live | |
| 51 | — |  | La Science, CQFD | France Culture | |
| 52 | 22 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 53 | 22 |  | Science Magazine Podcast | Science Magazine | |
| 54 | 15 |  | Science Vs | Spotify Studios | |
| 55 | 13 | G | Guardians of the River | Wild Bird Trust, NGOWP, House of Pod | |
| 56 | 5 |  | Blurry Creatures | Blurry Creatures | |
| 57 | 27 |  | Science In Action | BBC World Service | |
| 58 | 5 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 59 | 24 |  | So Cultured Podcast | Liv Grant & Taz Shipley | |
| 60 | 20 |  | New Books in Medicine | Marshall Poe | |
| 61 | 24 |  | Navigating Neuropsychology | John Bellone & Ryan Van Patten - NavNeuro | |
| 62 | 20 |  | Science Friday | Science Friday and WNYC Studios | |
| 63 | 22 | T | The Naked Scientists Podcast | The Naked Scientists | |
| 64 | 21 | T | The Neuro Clinic | Ingram Wright | |
| 65 | 21 | T | The APsolute RecAP: Physics 1 Edition | Ryan McDowell, Melanie Kingett | |
| 66 | 21 |  | Green Cover Podcast | Keith Berns | |
| 67 | 21 |  | The APsolute RecAP: Biology Edition | Melanie Kingett, Brad Kingett, Zach Caruso | |
| 68 | 8 |  | This Week in Virology | Vincent Racaniello | |
| 69 | 21 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 70 | 21 |  | The Future of Everything | Stanford Engineering | |
| 71 | 12 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 72 | 18 | F | Farming Today | BBC Radio 4 | |
| 73 | 5 |  | The Michael Shermer Show | Michael Shermer | |
| 74 | 22 |  | New Books in Critical Theory | Marshall Poe | |
| 75 | 2 | G | Gastroenterology Learning Network | Gastroenterology Learning Network | |
| 76 | 3 | N | New Books in Anthropology | New Books Network | |
| 77 | 10 |  | All In The Mind | ABC | |
| 78 | 5 |  | Nephilim Death Squad | TopLobsta Productions | |
| 79 | 18 |  | Unexpected Elements | BBC World Service | |
| 80 | 17 |  | BrainStuff | iHeartPodcasts | |
| 81 | 42 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 82 | 24 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 83 | 21 |  | The History of Chemistry | Steve Cohen | |
| 84 | 19 |  | Astrum Space | Astrum | |
| 85 | 30 |  | The Orthobullets Podcast | Orthobullets | |
| 86 | 16 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 87 | 24 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 88 | 24 |  | Eons: Surviving Deep Time | PBS | |
| 89 | 3 | T | The Birding Life Podcast Network | The Birding Life Podcast Network | |
| 90 | 6 | T | The Human Behavior Podcast | The Human Behavior Podcast | |
| 91 | 1 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 92 | 26 | T | This Natural Life | BBC Radio 4 | |
| 93 | 37 |  | Oceans: Life Under Water | Crowd Network | Greenpeace UK | |
| 94 | — |  | המעבדה The Lab | כאן | Kan | |
| 95 | 5 |  | Radiowissen | Bayerischer Rundfunk | |
| 96 | 25 |  | Here Weed Go! | Here Weed Go! | |
| 97 | 22 | S | Social Protection Podcast | socialprotection.org | |
| 98 | 22 | T | The Struggling Scientists | Suzanne and Jayron | |
| 99 | 21 |  | American Journal of Ophthalmology Podcasts Collection | Various | |
| 100 | 21 | W | What's Up Buttercup? | Robbie Blackhall-Miles | |
