| 1 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | 1 |  | Making Sense with Sam Harris | Sam Harris | |
| 3 | 1 |  | Ologies with Alie Ward | Alie Ward | |
| 4 | 1 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 5 | 1 |  | Unexplainable | Vox | |
| 6 | 4 |  | Curious Cases | BBC Radio 4 | |
| 7 | 5 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 8 | 7 |  | Science Vs | Spotify Studios | |
| 9 | 2 |  | Radiolab | WNYC Studios | |
| 10 | 3 |  | Speaking of Psychology | American Psychological Association | |
| 11 | 6 |  | The Life Scientific | BBC Radio 4 | |
| 12 | 1 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 13 | 33 |  | More or Less | BBC Radio 4 | |
| 14 | 5 |  | Science Weekly | The Guardian | |
| 15 | 3 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 16 | 25 |  | Outside/In | NHPR | |
| 17 | 9 | G | Green Noise | CapeNature | |
| 18 | 4 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 19 | 3 |  | When Science Finds a Way | Wellcome | |
| 20 | 52 | G | Guardians of the River | Wild Bird Trust, NGOWP, House of Pod | |
| 21 | 68 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 22 | 80 |  | CrowdScience | BBC World Service | |
| 23 | 76 |  | Ancient Aliens | PodcastOne | |
| 24 | 122 |  | The Quanta Podcast | Quanta Magazine | |
| 25 | 59 |  | Alive Again | iHeartPodcasts | |
| 26 | 84 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 27 | 86 | P | Psychology | Yale School of Medicine | |
| 28 | 36 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 29 | — |  | Future Ecologies | Future Ecologies | |
| 30 | 134 |  | In Defense of Plants Podcast | In Defense of Plants | |
| 31 | — | S | Social Work Radio | Social Work Radio | |
| 32 | — | B | BirdTalk | ProItUp Optics | |
| 33 | 18 |  | New Books in Psychoanalysis | Marshall Poe | |
| 34 | — | T | The Science of Personality Podcast | Hogan Assessments | |
| 35 | — | P | Pharmacology Basics | Instructor Gwin | |
| 36 | — |  | Chemistry For Your Life | Melissa and Jam, Bleav | |
| 37 | — |  | The House of Surgery | The American College of Surgeons | |
| 38 | 22 |  | The Psychology Podcast | iHeartPodcasts | |
| 39 | 11 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 40 | 21 |  | The Micah Hanks Program | Micah Hanks | |
| 41 | 1 |  | Blurry Creatures | Blurry Creatures | |
| 42 | 22 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 43 | 25 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 44 | 21 |  | Discovery | BBC World Service | |
| 45 | 82 |  | This Week in Cardiology | Medscape | |
| 46 | 19 |  | New Books in Critical Theory | Marshall Poe | |
| 47 | 26 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 48 | 23 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 49 | 101 |  | Robinson's Podcast | Robinson Erhardt | |
| 50 | 24 |  | TED Talks Science and Medicine | TED | |
| 51 | 16 |  | Regenerative Agriculture Podcast | John Kempf | |
| 52 | 23 |  | Invisibilia | NPR | |
| 53 | — |  | Nerdland Podcast | Lieven Scheire | |
| 54 | 30 | T | This Wild Life Conservation Podcast | Amy Turner | |
| 55 | — |  | On Wildlife | Alex Re | |
| 56 | — | S | Story Ark: tales from southern Africa's climate tipping points | Leonie Joubert | |
| 57 | 20 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 58 | 27 |  | Flash Forward | Rose Eveleth | |
| 59 | 29 |  | The Couples Therapist Couch | Shane Birkel | |
| 60 | — |  | Dope Labs | iHeartPodcasts | |
| 61 | 29 |  | The Sociology of Everything Podcast | Eric Hsu & Louis Everuss (Lou & the Hsu) | |
| 62 | 29 | D | Deep Dive into Brain and Behavior (D2B2) | Georgia Tech Psychology | |
| 63 | 29 | L | Law Of Attraction | Bhupesh Lakhara | |
| 64 | — | P | Parallax by Ankur Kalra | Radcliffe Cardiology | |
| 65 | 21 |  | The world, the universe and us | New Scientist | |
| 66 | 30 |  | Astrum Space | Astrum | |
| 67 | 29 | T | The Zoology Ramblings Podcast | Robi Watkinson and Emma Hodson | |
| 68 | 46 |  | Short Wave | NPR | |
| 69 | 30 | B | BJA: British Journal of Anaesthesia | Rik Thomas, Podcast Editor | |
| 70 | 27 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 71 | 23 |  | The Science of Everything Podcast | James Fodor | |
| 72 | 23 |  | Overheard at National Geographic | National Geographic | |
| 73 | 25 |  | Choiceology with Katy Milkman | Charles Schwab | |
| 74 | 18 |  | Science Friday | Science Friday and WNYC Studios | |
| 75 | 33 | T | The Birding Life Podcast Network | The Birding Life Podcast Network | |
| 76 | 31 | S | Science on the Table | Science on the Table | |
| 77 | 9 | S | Students of Surgery | Martin Brand | |
| 78 | 31 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 79 | 27 |  | Freakonomics, M.D. | Freakonomics Radio + Stitcher | |
| 80 | 15 | T | The We Society | AcSS | |
| 81 | 31 |  | Lost Women of Science | Lost Women of Science | |
| 82 | 14 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 83 | 30 | P | PsychCrunch | The British Psychological Society Research Digest | |
| 84 | 30 | D | Data Science Decoded | Mike E | |
| 85 | — |  | The Michael Shermer Show | Michael Shermer | |
| 86 | 31 | H | Human Action: A Treatise on Economics | Ludwig von Mises | |
| 87 | 31 | T | The Fascia Guide | thefasciaguide | |
| 88 | 31 | T | The Universe Speaks in Numbers | Faber and Faber | |
| 89 | 31 | C | CPC Biocast | Todd Andrews | |
| 90 | 31 | T | Things You Can't Live Without | Rio Tinto / Listen | |
| 91 | 31 | P | Podcast Viszeralmedizin | Christoph Paasch | |
| 92 | 31 | C | Cold Steel: Canadian Journal of Surgery Podcast | Canadian Journal of Surgery | |
| 93 | 31 | T | The PreMed Voice | The PreMed Voice | |
| 94 | 31 | T | The Pre-Med Life | The Pre-Med Life | |
| 95 | 5 |  | Real Ghost Stories Online | Real Ghost Stories Online | Paranormal, Supernatural & Horror Radio | |
| 96 | 26 |  | Universe Today Podcast | Fraser Cain | |
| 97 | 31 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 98 | 49 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 99 | 30 |  | Instant Genius | Our Media | |
| 100 | 22 |  | Relebogile Mabotja hosts The Naked Scientist | Radio 702 | |
