| 1 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 2 | 2 |  | Radiolab | WNYC Studios | |
| 3 | 1 |  | Ologies with Alie Ward | Alie Ward | |
| 4 | 1 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 5 | 16 |  | Unexplainable | Vox | |
| 6 | 2 |  | Making Sense with Sam Harris | Sam Harris | |
| 7 | 2 |  | Science In Action | BBC World Service | |
| 8 | 1 |  | Science Weekly | The Guardian | |
| 9 | 3 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 10 | 6 |  | More or Less | BBC Radio 4 | |
| 11 | 1 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 12 | 2 | T | The myCOW Podcast | myCOW | |
| 13 | 4 |  | CrowdScience | BBC World Service | |
| 14 | 1 | O | Our Changing World | RNZ | |
| 15 | 11 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 16 | 7 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 17 | 10 | G | Goodfellow Unit | The Goodfellow Unit (University of Auckland) | |
| 18 | 13 |  | Babbage from The Economist | The Economist | |
| 19 | — |  | The Naked Scientists Podcast | The Naked Scientists | |
| 20 | 95 |  | The world, the universe and us | New Scientist | |
| 21 | 1 |  | Overheard at National Geographic | National Geographic | |
| 22 | 7 |  | Curious Cases | BBC Radio 4 | |
| 23 | 9 |  | All In The Mind | ABC | |
| 24 | 13 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 25 | 3 |  | BBC Inside Science | BBC Radio 4 | |
| 26 | 59 |  | Science Vs | Spotify Studios | |
| 27 | 3 |  | The Common Descent Podcast | Common Descent | |
| 28 | 10 | B | Because Why?! The Science and Society Pod. | Brianne West | |
| 29 | 4 |  | Discovery | BBC World Service | |
| 30 | 6 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 31 | 86 |  | The Life Scientific | BBC Radio 4 | |
| 32 | — | B | Boring History for Sleep | Velvet | |
| 33 | 137 |  | Houston We Have a Podcast | National Aeronautics and Space Administration (NASA) | |
| 34 | 97 |  | Robert Sapolsky | Father-Offspring Interviews | Robert Sapolsky | |
| 35 | 2 |  | I Know Dino: The Big Dinosaur Podcast | I KNOW DINO, LLC | |
| 36 | 13 |  | Ancient Aliens | PodcastOne | |
| 37 | 57 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 38 | 153 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 39 | — |  | Living Planet | DW | |
| 40 | — | T | The Upper Hand: Chuck & Chris Talk Hand Surgery | Chuck and Chris | |
| 41 | — | P | Physics World Stories Podcast | Physics World | |
| 42 | — | T | The Knepp Wilding Podcast | Knepp.co.uk | |
| 43 | 142 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 44 | — |  | ScienceStuff | iHeartPodcasts | |
| 45 | 7 |  | Terrible Lizards | Iszi Lawrence and David Hone | |
| 46 | — | I | Inside Biodiversity | German Centre for Integrative Biodiversity Research (iDiv) | |
| 47 | — | C | Choses à Savoir SCIENCES | Choses à Savoir | |
| 48 | — | B | blurbs | Matt Ross | |
| 49 | 20 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 50 | — | S | Sleep Talk - Talking all things sleep | SleepHub | |
| 51 | — |  | Mythfits | Pionaire Podcasting | |
| 52 | — |  | Ingenious: how research transforms our world | UoAMediaTeam | |
| 53 | — | W | Wilderness Medicine Podcast | Wilderness Medical Society | |
| 54 | — |  | Native Plants, Healthy Planet | Pinelands Nursery, Bleav | |
| 55 | — | S | Sleep Science Podcast | Penny Lewis | |
| 56 | — | L | Light Pollution News | Light Pollution News | |
| 57 | 29 | T | The New Zealand General Practice Podcast | Dr Jo Scott-Jones | |
| 58 | 21 |  | Unexpected Elements | BBC World Service | |
| 59 | 24 |  | Scotland Outdoors | BBC Radio Scotland | |
| 60 | 20 |  | Mysterious Universe | 8th Kind | |
| 61 | 27 |  | UAP Unidentified Alien Podcast | Gamut Podcast Network | |
| 62 | 26 |  | Science Magazine Podcast | Science Magazine | |
| 63 | 19 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 64 | 61 |  | Shocked | UChicago Institute for Climate and Sustainable Growth, Michael Greenstone, Amy Harder | |
| 65 | 24 |  | Unknowns | OER Project | |
| 66 | 23 |  | Wild Times: Wildlife Education | Wildlife Educator - Forrest Galante | |
| 67 | 14 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 68 | 29 |  | Need To Know | Bryce Zabel | |
| 69 | 27 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 70 | — |  | Robinson's Podcast | Robinson Erhardt | |
| 71 | — | W | White Coat, Black Art | CBC | |
| 72 | 27 | B | Best Medicine | BBC Radio 4 | |
| 73 | — |  | My Big TOE by Thomas Campbell - Unifying Mind and Matter | Thomas Campbell together with the MBT Volunteers | |
| 74 | — | T | The Psychology of Criminal and Antisocial Behaviour | WP | |
| 75 | 18 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 76 | 28 | S | Science, Spoken | WIRED | |
| 77 | 31 |  | TED Talks Science and Medicine | TED | |
| 78 | 31 |  | Hunting Dog Confidential | Project Upland Media Group | |
| 79 | — |  | Green Dreamer: Seeding change towards collective healing, sustainability, regeneration | kaméa chayne | |
| 80 | — | B | Big Sky Country | Bush Heritage Australia | |
| 81 | 32 | M | Motivational Interviewing & Beyond | Joel Porter & Steve Rollnick | |
| 82 | 32 | A | A CRISPR Bite: How gene-editing technology is changing our food | Corinne Ruff, GEAP3 Network, Lauren Crossland-Marr | |
| 83 | 32 | S | Sustainable Fashion LK | Sustainable Fashion LK | |
| 84 | 32 |  | You Are Not So Smart | You Are Not So Smart | |
| 85 | 30 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 86 | 3 |  | Universe Today Podcast | Fraser Cain | |
| 87 | 25 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 88 | 24 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 89 | 31 |  | The Climate Question | BBC World Service | |
| 90 | 9 |  | Astrum Space | Astrum | |
| 91 | 26 |  | Blurry Creatures | Blurry Creatures | |
| 92 | — |  | Science Friday | Science Friday and WNYC Studios | |
| 93 | 13 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 94 | 35 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 95 | 39 |  | Giant Leap with Taylor Wilson | Giant Leap | |
| 96 | 35 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 97 | 43 |  | Alive Again | iHeartPodcasts | |
| 98 | 38 | P | Personality Psychology Podcast | personalitypsychologypodcast | |
| 99 | 51 |  | The Science Show | ABC | |
| 100 | 9 | O | Open Country | BBC Radio 4 | |
