| 1 | — |  | The Rest Is Science | Goalhanger | |
| 2 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 3 | — |  | Ologies with Alie Ward | Alie Ward | |
| 4 | 3 |  | Science Friction | ABC | |
| 5 | 1 |  | More or Less | BBC Radio 4 | |
| 6 | 2 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 7 | 3 | K | Kākāpō Files II | RNZ | |
| 8 | 3 |  | Science Weekly | The Guardian | |
| 9 | 6 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 10 | 2 |  | Science Vs | Spotify Studios | |
| 11 | 2 |  | Operation Night Cat | New Hampshire Public Radio | |
| 12 | 7 | O | Our Changing World | RNZ | |
| 13 | 1 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 14 | 2 |  | Radiolab | WNYC Studios | |
| 15 | 4 |  | All In The Mind | ABC | |
| 16 | — |  | BBC Inside Science | BBC Radio 4 | |
| 17 | 4 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 18 | — | B | Boring History for Sleep | Velvet | |
| 19 | 12 |  | Wild Sounds: Kākāpō Files II | RNZ | |
| 20 | 3 |  | Unexplainable | Vox | |
| 21 | 11 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 22 | 21 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 23 | 13 |  | Inner Cosmos with David Eagleman | iHeartPodcasts | |
| 24 | 15 |  | Short Wave | NPR | |
| 25 | 5 |  | Making Sense with Sam Harris | Sam Harris | |
| 26 | 3 |  | Curious Cases | BBC Radio 4 | |
| 27 | 17 |  | Get Birding | Peanut & Crumb | |
| 28 | 2 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 29 | 4 |  | Discovery | BBC World Service | |
| 30 | 9 |  | Ingenious: how research transforms our world | UoAMediaTeam | |
| 31 | 7 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 32 | 10 |  | Bite Back with Abbey Sharp | Abbey Sharp / Frequency Podcast Network | |
| 33 | 37 | V | Voice of Tangaroa | RNZ | |
| 34 | 56 |  | Nature Podcast | Springer Nature Limited | |
| 35 | 45 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 36 | 2 |  | Astrum Space | Astrum | |
| 37 | 72 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 38 | 4 |  | CrowdScience | BBC World Service | |
| 39 | 4 |  | Science Friday | Science Friday and WNYC Studios | |
| 40 | 89 | T | The Al & Juddy Show | Agricom | |
| 41 | 14 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 42 | 9 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 43 | 104 |  | Overheard at National Geographic | National Geographic | |
| 44 | 16 | W | What The Duck?! | ABC | |
| 45 | 16 |  | The world, the universe and us | New Scientist | |
| 46 | 6 |  | The Science of Birds | Ivan Phillipsen | |
| 47 | 17 |  | Safe to Drink | NHPR | |
| 48 | 85 |  | Speaking of Psychology | American Psychological Association | |
| 49 | 65 |  | Unexpected Elements | BBC World Service | |
| 50 | 56 |  | Scott Carney Investigates | Scott Carney | |
| 51 | 54 |  | Planet Visionaries – SEASON 5 | A podcast in partnership with The Rolex Perpetual Planet Initiative | |
| 52 | 18 |  | Beat Your Genes Podcast | BeatYourGenes | |
| 53 | 7 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 54 | — |  | Biotech 2050 Podcast | Biotech 2050 | |
| 55 | — |  | Extraterrestrial | Parcast Network | |
| 56 | 97 |  | Talk Nerdy with Cara Santa Maria | Cara Santa Maria | |
| 57 | — | R | Ri Science Podcast | The Royal Institution | |
| 58 | — |  | Slow Radio | BBC Radio 3 | |
| 59 | — |  | The Nature Of with Willow Defebaugh | Atmos | |
| 60 | — | O | One Planet Podcast · Climate Change, Politics, Sustainability, Environmental Solutions, Renewable Energy, Activism, Biodiver | Creative Process Original Series | |
| 61 | 24 |  | The Orthobullets Podcast | Orthobullets | |
| 62 | — | S | Soft Robotics Podcast | Marwa ElDiwiny | |
| 63 | — | Q | Quantum Foundations Podcast | Maria Violaris | |
| 64 | 15 |  | The Common Descent Podcast | Common Descent | |
| 65 | 20 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 66 | 25 |  | Head Shepherd | Mark Ferguson | |
| 67 | 13 |  | Science Magazine Podcast | Science Magazine | |
| 68 | 24 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 69 | 8 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 70 | 13 |  | Dr Karl Podcast | triplej | |
| 71 | 21 |  | In Defense of Plants Podcast | In Defense of Plants | |
| 72 | 12 |  | The Life Scientific | BBC Radio 4 | |
| 73 | 25 |  | Heartbreak: A Personal and Scientific Journey | Pushkin Industries | |
| 74 | 23 |  | Terrible Lizards | Iszi Lawrence and David Hone | |
| 75 | 6 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 76 | 29 |  | The Market Gardener Podcast | JM Fortier | |
| 77 | 22 |  | The Marginal Revolution Podcast | Mercatus Center at George Mason University | |
| 78 | 22 |  | The End Of The World with Josh Clark | iHeartPodcasts | |
| 79 | 21 |  | Geology Bites | Oliver Strimpel | |
| 80 | 28 | T | The Qual Report: Exploring the Depths of Qualitative Research | Adam Rosenthal | |
| 81 | 28 | F | Food Forest Podcast | Food Forest Institute | |
| 82 | 10 | S | scigest - Bioeconomy Science Institute podcasts | New Zealand Institute for Bioeconomy Science Limited | |
| 83 | 21 |  | Completely Arbortrary | Completely Arbortrary | |
| 84 | 25 |  | Big Picture Science | Big Picture Science | |
| 85 | 11 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 86 | 25 | W | World of Sharks | Save Our Seas Foundation | |
| 87 | 21 |  | Clinician's Brief: The Podcast | Clinician's Brief | |
| 88 | 25 | V | VoxTalks Economics | VoxTalks | |
| 89 | 24 |  | Drilled | Pushkin Industries | |
| 90 | 26 |  | The Brain Health Revolution Podcast | The Brain Docs | |
| 91 | 23 |  | Clinical Conversations | Royal College of Physicians of Edinburgh | |
| 92 | 25 |  | Manasgatha - A Sinhala podcast that dwells into all things interesting including tech, IT, politics | Manasgatha | |
| 93 | 20 | A | A Healthy Dose of Humour | Leith | |
| 94 | 37 |  | The Science Show | ABC | |
| 95 | 35 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 96 | 17 |  | Universe Today Podcast | Fraser Cain | |
| 97 | — |  | Spacepod | Carrie Nugent | |
| 98 | 13 |  | Babbage from The Economist | The Economist | |
| 99 | 28 | サ | サイエントーク | 研究者レンとイギリス駐在員エマ | |
| 100 | 11 |  | Tooth & Claw: True Stories of Animal Attacks | Wes Larson, Jeff Larson, Mike Smith | Daylight Media | |
