| 1 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | — |  | Making Sense with Sam Harris | Sam Harris | |
| 3 | — |  | StarTalk Radio | Neil deGrasse Tyson | |
| 4 | 1 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 5 | 1 |  | Radiolab | WNYC Studios | |
| 6 | 2 |  | Ologies with Alie Ward | Alie Ward | |
| 7 | 5 |  | Science Vs | Spotify Studios | |
| 8 | 5 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 9 | 3 |  | Unexplainable | Vox | |
| 10 | 14 | S | Students of Surgery | Martin Brand | |
| 11 | 2 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 12 | 1 |  | The Psychology Podcast | iHeartPodcasts | |
| 13 | 3 | T | The Human Behavior Podcast | The Human Behavior Podcast | |
| 14 | 7 |  | ScienceStuff | iHeartPodcasts | |
| 15 | 12 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 16 | 138 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 17 | 44 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 18 | 13 |  | Nature Podcast | Springer Nature Limited | |
| 19 | 4 | B | BJA: British Journal of Anaesthesia | Rik Thomas, Podcast Editor | |
| 20 | 104 |  | Blurry Creatures | Blurry Creatures | |
| 21 | 11 |  | CREOGs Over Coffee | CREOGs Over Coffee | |
| 22 | 129 |  | Science Weekly | The Guardian | |
| 23 | 83 |  | Living Planet | DW | |
| 24 | — |  | All Creatures Podcast | All Creatures Podcast | |
| 25 | — |  | Mongabay Newscast | Mongabay.com | |
| 26 | 26 |  | DNA Today: A Genetics Podcast | Kira Dineen, Gene Pool Media | |
| 27 | 68 |  | Overheard at National Geographic | National Geographic | |
| 28 | 13 |  | Discovery | BBC World Service | |
| 29 | 15 |  | The Science of Everything Podcast | James Fodor | |
| 30 | 11 |  | Curious Cases | BBC Radio 4 | |
| 31 | 3 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 32 | 51 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 33 | 17 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 34 | 94 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 35 | 14 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 36 | 18 |  | More or Less | BBC Radio 4 | |
| 37 | — | M | Medscape InDiscussion: Triple-Negative Breast Cancer | Medscape | |
| 38 | 131 | B | BJA Education Podcasts | BJA Education | |
| 39 | 122 |  | Houston We Have a Podcast | National Aeronautics and Space Administration (NASA) | |
| 40 | — | M | Mawazo Ideas Podcast | The Mawazo Institute | |
| 41 | 12 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 42 | — |  | AcresUSA: Tractor Time | Tractor Time by Acres U.S.A. | |
| 43 | — |  | Science Rules! with Bill Nye | Stitcher & Bill Nye | |
| 44 | — | C | Changing Minds with Owen Fitzpatrick | Owen Fitzpatrick | |
| 45 | 25 |  | The Weirdest Thing I Learned This Week | Popular Science | |
| 46 | — |  | Biotech Hangout | Daphne Zohar, Josh Schimmer, Brad Loncar, Tim Opler & more | |
| 47 | — |  | Mysterious Universe | 8th Kind | |
| 48 | 15 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 49 | 24 |  | Speaking of Psychology | American Psychological Association | |
| 50 | — |  | The Medbullets Step 2 & 3 Podcast | Medbullets | |
| 51 | — | C | Clinical neurology with KD | Krishnadas N C | |
| 52 | 30 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 53 | — | T | The Aspiring Psychologist Podcast | Dr Marianne Trent | |
| 54 | — |  | The Medbullets Step 1 Podcast | Medbullets | |
| 55 | — |  | Navigating Neuropsychology | John Bellone & Ryan Van Patten - NavNeuro | |
| 56 | — | F | From the Spectrum: Finding Superpowers with Autism | Ryan Sumner | |
| 57 | — | M | Microbe Talk | Microbiology Society | |
| 58 | — |  | Naturebang | BBC Radio 4 | |
| 59 | — |  | This Week in Neuroscience | Vincent Racaniello | |
| 60 | — |  | Unplucked | The Poultry Science Association | |
| 61 | — | T | The Fowl Frontier: Poultry Science Unplucked | University of Arkansas System Division of Agriculture | |
| 62 | — | I | Illuminati Confirmed | Juan on Juan Media, LLC. | |
| 63 | — |  | The Acres U.S.A. Podcast | Acres U.S.A.® | |
| 64 | — | W | Wondody World Odysseys| Documentary Educational Podcast Bedtime Story for Kids-Adult Audiobooks Free | Orbinea Studio | |
| 65 | — | T | The Crop Science Podcast Show | Wisenetix | |
| 66 | 40 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 67 | 37 |  | The Orthobullets Podcast | Orthobullets | |
| 68 | 16 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 69 | 32 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 70 | 29 |  | Freakonomics, M.D. | Freakonomics Radio + Stitcher | |
| 71 | 37 |  | BirdNote Daily | BirdNote | |
| 72 | 37 |  | Ancient Aliens | PodcastOne | |
| 73 | 31 |  | Let's Learn Everything! | Maximum Fun | |
| 74 | 35 |  | In Defense of Plants Podcast | In Defense of Plants | |
| 75 | 21 | E | Equine Med On The Go | Sacha Brévault et Angélique Hayot | |
| 76 | 31 |  | SAPIENS: A Podcast for Everything Human | SAPIENS | |
| 77 | 39 | N | National Geographic Magazine | Radio Eye | |
| 78 | 119 |  | Get Out Alive | Ashley Bray | |
| 79 | 39 |  | Neuroscience: Amateur Hour | Neuroscience: Amateur Hour | |
| 80 | 29 |  | The Elective Rotation: A Critical Care Hospital Pharmacy Podcast | Pharmacy Joe | |
| 81 | 45 |  | New Books in Psychoanalysis | Marshall Poe | |
| 82 | 24 | S | Seismic Soundoff | Society of Exploration Geophysicists (SEG) | |
| 83 | 40 | G | GI Insights | ReachMD | |
| 84 | 40 |  | Water We Doing? | David Evans | |
| 85 | — |  | What About Water? with Jay Famiglietti | Jay Famiglietti | |
| 86 | 40 | A | Animals To The Max Podcast | Corbin Maxey | |
| 87 | 39 | E | Everyday Neuro: Psychology and Neuroscience Podcast | Dr Janine Cooper: Cognitive Psychologist, Neuroscientist, Neuropsychology researcher. | |
| 88 | 39 | T | The Structural Engineering Podcast | Max and Zach | |
| 89 | 39 |  | The Green Room: A Podcast from Obstetrics & Gynecology | Obstetrics & Gynecology (Green Journal) | |
| 90 | 37 | E | ERS Publications Podcasts | ERS Publications Podcasts | |
| 91 | 37 | T | TTBOOK Presents: Deep Time | To The Best Of Our Knowledge | |
| 92 | 37 | T | The ENYGO Podcast | ENYGO | |
| 93 | 37 | R | RCPCH Podcasts | Royal College of Paediatrics and Child Health | |
| 94 | 37 | G | Good Heavens! The Human Side of Astronomy | goodheavens | |
| 95 | 48 | T | The Birding Life Podcast Network | The Birding Life Podcast Network | |
| 96 | 9 |  | Choiceology with Katy Milkman | Charles Schwab | |
| 97 | 33 |  | Science Friday | Science Friday and WNYC Studios | |
| 98 | 38 |  | Dr. Chapa’s OBGYN Clinical Pearls | Dr. Chapa’s Clinical Pearls | |
| 99 | 31 |  | Relebogile Mabotja hosts The Naked Scientist | Radio 702 | |
| 100 | 41 |  | Science Magazine Podcast | Science Magazine | |
