| 1 | 3 |  | Radiolab | WNYC Studios | |
| 2 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 3 | 4 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 4 | 3 |  | Ologies with Alie Ward | Alie Ward | |
| 5 | 3 |  | Curious Cases | BBC Radio 4 | |
| 6 | 4 |  | All In The Mind | ABC | |
| 7 | 10 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 8 | 3 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 9 | 3 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 10 | 1 |  | Science Weekly | The Guardian | |
| 11 | 8 |  | Making Sense with Sam Harris | Sam Harris | |
| 12 | 29 |  | More or Less | BBC Radio 4 | |
| 13 | 3 |  | Science In Action | BBC World Service | |
| 14 | 1 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 15 | 9 |  | BBC Inside Science | BBC Radio 4 | |
| 16 | 5 |  | Discovery | BBC World Service | |
| 17 | 17 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 18 | 2 |  | The world, the universe and us | New Scientist | |
| 19 | 8 |  | Unexplainable | Vox | |
| 20 | 1 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 21 | 12 | O | Our Changing World | RNZ | |
| 22 | 6 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 23 | 12 |  | CrowdScience | BBC World Service | |
| 24 | 10 |  | Speaking of Psychology | American Psychological Association | |
| 25 | 7 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 26 | 11 | G | Goodfellow Unit | The Goodfellow Unit (University of Auckland) | |
| 27 | 143 | R | Rewilding In Action | Maureen Howard | |
| 28 | 169 | E | Echoes of Impact | AUT Media | |
| 29 | 104 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 30 | 2 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 31 | 148 | W | What The Duck?! | ABC | |
| 32 | 17 | T | The Best of Making Sense with Sam Harris | Sam Harris | |
| 33 | — | N | New Books in Public Policy | New Books Network | |
| 34 | 96 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
| 35 | 13 |  | Overheard at National Geographic | National Geographic | |
| 36 | 64 | B | Because Why?! The Science and Society Pod. | Brianne West | |
| 37 | — |  | Skeptoid | Brian Dunning | |
| 38 | 15 | B | Blazing the Trail | University of Sydney / Australian Museum / Break Thru Films | |
| 39 | 101 |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 40 | 10 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 41 | 104 |  | The Climate Question | BBC World Service | |
| 42 | 151 |  | 5 Live Science Podcast | BBC Radio 5 Live | |
| 43 | 146 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 44 | 148 |  | Bite Back with Abbey Sharp | Abbey Sharp / Frequency Podcast Network | |
| 45 | 20 |  | Science Vs | Spotify Studios | |
| 46 | 22 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 47 | — |  | Your Brain On | Drs. Ayesha and Dean Sherzai | |
| 48 | — | L | Lab Notes | Lab Notes | |
| 49 | — | B | Best Medicine | BBC Radio 4 | |
| 50 | — |  | The Brain Health Revolution Podcast | The Brain Docs | |
| 51 | — |  | Chemistry Made Simple | Matthew Macariou | |
| 52 | 23 |  | Why Do We Do That? | BBC Radio 4 | |
| 53 | 27 | S | Samoan Scientist Podcast | Amy | |
| 54 | — |  | Weirdทยาศาสตร์ | Salmon Podcast | |
| 55 | — |  | Let's Talk Chemistry- a science podcast by ChemTalk | The ChemTalk Team | |
| 56 | — | C | Crit-IQ | www.crit-iq.com | |
| 57 | — | S | Star Diary | BBC Sky at Night Magazine | |
| 58 | — |  | ZEIT WISSEN. Woher weißt Du das? | DIE ZEIT | |
| 59 | — | R | Research 2030 | Elsevier | |
| 60 | — |  | Casual Inference | Lucy D'Agostino McGowan and Ellie Murray | |
| 61 | — | J | Just the Zoo of Us | Ellen & Christian Weatherford | |
| 62 | — | F | Focal Point: the IMV imaging podcast | IMV imaging | |
| 63 | 25 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 64 | 4 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 65 | 10 |  | Unexpected Elements | BBC World Service | |
| 66 | 27 |  | The Michael Shermer Show | Michael Shermer | |
| 67 | 36 |  | Physics World Weekly Podcast | Physics World | |
| 68 | 35 |  | Mongabay Newscast | Mongabay.com | |
| 69 | 33 | M | MissPerceived | Audiocrafty | |
| 70 | 26 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 71 | 26 |  | Quirks and Quarks | CBC | |
| 72 | 35 |  | The End Of The World with Josh Clark | iHeartPodcasts | |
| 73 | 33 |  | TheThinkingAtheist | The Thinking Atheist | |
| 74 | 32 | F | Full PreFrontal: Exposing the Mysteries of Executive Function | Sucheta Kamath | |
| 75 | 32 | T | The Force of Nature Podcast | Conan Moynihan | |
| 76 | 29 |  | I Was Prey | Animal Planet | |
| 77 | 11 |  | Flash Forward | Rose Eveleth | |
| 78 | 11 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 79 | 33 |  | You Are Not So Smart | You Are Not So Smart | |
| 80 | 29 | W | Whale Tales Podcast | Whale Tales | |
| 81 | 33 |  | Sustainababble | Sustainababble: comedy, nature, climate change. | |
| 82 | 30 | M | Mind Brew | Jacqui Maguire | |
| 83 | 12 |  | Big Picture Science | Big Picture Science | |
| 84 | 34 | P | Physics | Yale University | |
| 85 | 32 |  | Know What You See with Brian Lowery | Brian S. Lowery | |
| 86 | 32 | C | Circulation on the Run | Greg Hundley, MD and Peder Myhre, MD, PhD | |
| 87 | 32 | M | MIT News | Massachusetts Institute of Technology (MIT) | |
| 88 | 32 | T | The Anti-Dread Climate Podcast | KCRW | |
| 89 | 32 |  | Environment, Climate Change, Renewable Energy, Regeneration, Sustainability, Nature, Politics, Circular Economy - One Planet | Environmental Solutions - One Planet Podcast - Creative Process Original Series | |
| 90 | 32 |  | Aha! With JAHA | JAHA – Journal of the American Heart Association | |
| 91 | 32 | B | Built with Biology: Podcast | SynBioBeta | |
| 92 | 32 | B | Built with Biology: Spotlight | SynBioBeta | |
| 93 | 32 | R | Rossifari Podcast - Zoos, Aquariums, and Animal Conservation | Rossifari | |
| 94 | 32 | T | The SynBioBeta Podcast | John Cumbers | |
| 95 | 32 | T | The ClimateReady Podcast: Adapting to Climate Change & Uncertainty | The Alliance for Global Water Adaptation (AGWA) | |
| 96 | — |  | The Science Show | ABC | |
| 97 | 33 | V | Voice of Tangaroa | RNZ | |
| 98 | 10 |  | Blurry Creatures | Blurry Creatures | |
| 99 | 19 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 100 | 5 |  | Dr Karl Podcast | triplej | |
