| 1 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | 1 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 3 | 1 |  | Unexplainable | Vox | |
| 4 | 1 |  | Radiolab | WNYC Studios | |
| 5 | 5 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 6 | 2 |  | Ologies with Alie Ward | Alie Ward | |
| 7 | 1 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 8 | 1 |  | Curious Cases | BBC Radio 4 | |
| 9 | 23 |  | Science Weekly | The Guardian | |
| 10 | 3 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 11 | 22 |  | Discovery | BBC World Service | |
| 12 | 15 |  | Making Sense with Sam Harris | Sam Harris | |
| 13 | 1 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 14 | 8 |  | More or Less | BBC Radio 4 | |
| 15 | 7 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 16 | 74 |  | Relebogile Mabotja hosts The Naked Scientist | Radio 702 | |
| 17 | 6 | A | AfroPop Music 4 D Soul | BlackBoiAmazing | |
| 18 | 8 |  | TED Talks Science and Medicine | TED | |
| 19 | 16 |  | New Books in Critical Theory | Marshall Poe | |
| 20 | 1 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 21 | 67 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 22 | 28 |  | Blurry Creatures | Blurry Creatures | |
| 23 | 7 |  | The Life Scientific | BBC Radio 4 | |
| 24 | — | M | Mongabay Explores | Mongabay.com | |
| 25 | 29 |  | The Psychology Podcast | iHeartPodcasts | |
| 26 | 13 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 27 | 9 |  | Short Wave | NPR | |
| 28 | 29 |  | In Defense of Plants Podcast | In Defense of Plants | |
| 29 | 8 |  | The Michael Shermer Show | Michael Shermer | |
| 30 | 30 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 31 | 33 |  | SAPIENS: A Podcast for Everything Human | SAPIENS | |
| 32 | 15 |  | Nature Podcast | Springer Nature Limited | |
| 33 | 10 |  | CREOGs Over Coffee | CREOGs Over Coffee | |
| 34 | 20 |  | ScienceStuff | iHeartPodcasts | |
| 35 | 20 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 36 | 50 |  | BBC Inside Science | BBC Radio 4 | |
| 37 | 64 |  | Neuroscience: Amateur Hour | Neuroscience: Amateur Hour | |
| 38 | 115 | A | Ask the Naked Scientists | Dr Chris Smith | |
| 39 | 15 |  | Invisibilia | NPR | |
| 40 | 2 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 41 | 21 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 42 | 21 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 43 | 108 |  | SciShow Tangents | Complexly | |
| 44 | — |  | Grazing Grass Podcast sharing Regenerative Ag Stories | Grazing Grass | |
| 45 | — |  | Oceans: Life Under Water | Crowd Network | Greenpeace UK | |
| 46 | — | E | European Journal of Anaesthesiology | EJA - The EJA Podcast collection | EJA | |
| 47 | — |  | I Know Dino: The Big Dinosaur Podcast | I KNOW DINO, LLC | |
| 48 | 23 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 49 | — | B | BJA Education Podcasts | BJA Education | |
| 50 | — |  | The End Of The World with Josh Clark | iHeartPodcasts | |
| 51 | — | R | Radio Semilla | Radio Semilla | |
| 52 | — |  | The Poultry Podcast Show | Wisenetix | |
| 53 | — | O | OVERSHOOT | Shrink Toward Abundance | Population Balance | |
| 54 | 26 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 55 | — | L | Lung Cancer Considered | IASLC | |
| 56 | — |  | The Numberphile Podcast | Brady Haran | |
| 57 | — | S | Speaking of Psychology | American Psychological Association | |
| 58 | — | T | The Soil Health Hub Podcast | Soil Health Hub | |
| 59 | — | G | Green Noise | CapeNature | |
| 60 | — | C | Clinical neurology with KD | Krishnadas N C | |
| 61 | — |  | Board Rounds Prep for USMLE and COMLEX | Ryan Gray | |
| 62 | — |  | Soil Matters | The British Society of Soil Science | |
| 63 | — |  | Safeguarding Sound Science | National Center for Science Education | |
| 64 | — | T | TMiP Podcast | Talking Maths in Public | |
| 65 | 29 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 66 | 37 |  | Regenerative Agriculture Podcast | John Kempf | |
| 67 | 36 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 68 | 34 |  | The Orthobullets Podcast | Orthobullets | |
| 69 | 27 |  | BrainStuff | iHeartPodcasts | |
| 70 | 40 |  | BioCentury This Week | BioCentury | |
| 71 | 32 | S | Students of Surgery | Martin Brand | |
| 72 | 11 |  | Science Friday | Science Friday and WNYC Studios | |
| 73 | 32 | T | The Naked Scientists Podcast | The Naked Scientists | |
| 74 | 25 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 75 | 24 | T | The Birding Life Podcast Network | The Birding Life Podcast Network | |
| 76 | 36 |  | So Cultured Podcast | Liv Grant & Taz Shipley | |
| 77 | 39 |  | Nephilim Death Squad | TopLobsta Productions | |
| 78 | 41 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 79 | 36 | P | Psychology | Yale School of Medicine | |
| 80 | 35 |  | The Astrophysics Podcast | Paul Duffell | |
| 81 | 39 | B | BIOL 221- Microbiology - eb | Dr. Earl Beyer | |
| 82 | 36 | N | New Scientist Weekly | New Scientist | |
| 83 | 36 |  | The Future of Everything | Stanford Engineering | |
| 84 | 36 | K | Keeping Up With The Keynesians | Keeping Up With The Keynesians | |
| 85 | 4 |  | Unexpected Elements | BBC World Service | |
| 86 | 33 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 87 | 35 |  | HOLOSKY PODCAST | Holosky Podcast | |
| 88 | 29 |  | Speaking of Psychology | American Psychological Association | |
| 89 | 110 |  | Astronomy Daily: Space News Updates | bitesz.com | |
| 90 | 32 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 91 | 47 |  | CrowdScience | BBC World Service | |
| 92 | 23 |  | Jung Chicago Radio | C. G. Jung Institute of Chicago | |
| 93 | 9 |  | TheThinkingAtheist | The Thinking Atheist | |
| 94 | 7 |  | Choiceology with Katy Milkman | Charles Schwab | |
| 95 | — | S | Science Stories | BBC Radio 4 | |
| 96 | 41 | S | Sango | Laurianne | |
| 97 | 41 |  | Chemistry Made Simple | Matthew Macariou | |
| 98 | 19 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 99 | 37 | G | Guardians of the River | Wild Bird Trust, NGOWP, House of Pod | |
| 100 | 34 | B | Beneath the Baobab | Jamma International | |
