| 1 | — |  | StarTalk Radio | Neil deGrasse Tyson | |
| 2 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 3 | 7 |  | Radiolab | WNYC Studios | |
| 4 | — |  | Ologies with Alie Ward | Alie Ward | |
| 5 | 1 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 6 | 2 |  | Science Vs | Spotify Studios | |
| 7 | 4 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 8 | 1 |  | Unexplainable | Vox | |
| 9 | 4 |  | Making Sense with Sam Harris | Sam Harris | |
| 10 | 3 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 11 | — |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 12 | 10 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 13 | 1 |  | Speaking of Psychology | American Psychological Association | |
| 14 | 3 |  | Proxy with Yowei Shaw | Y3 Productions | |
| 15 | 20 |  | Psychiatry & Psychotherapy Podcast | David Puder, M.D. | |
| 16 | 162 |  | ScienceStuff | iHeartPodcasts | |
| 17 | 10 |  | Alive Again | iHeartPodcasts | |
| 18 | 27 |  | Living Planet | DW | |
| 19 | 7 |  | The Psychology Podcast | iHeartPodcasts | |
| 20 | 13 |  | Science Weekly | The Guardian | |
| 21 | 12 |  | Blurry Creatures | Blurry Creatures | |
| 22 | 22 |  | Curious Cases | BBC Radio 4 | |
| 23 | 73 |  | More or Less | BBC Radio 4 | |
| 24 | 24 |  | Ask the Naked Scientists | Dr Chris Smith | |
| 25 | 82 |  | Geology Bites | Oliver Strimpel | |
| 26 | 104 |  | Bite Back with Abbey Sharp | Abbey Sharp / Frequency Podcast Network | |
| 27 | 4 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 28 | 153 | B | Biostatistics Podcast | Jocelyn Chen | |
| 29 | 71 |  | CrowdScience | BBC World Service | |
| 30 | 11 |  | Invisibilia | NPR | |
| 31 | 15 |  | Overheard at National Geographic | National Geographic | |
| 32 | — |  | Biotech 2050 Podcast | Biotech 2050 | |
| 33 | — | S | Shots of Science Vs | Spotify Studios | |
| 34 | — |  | Navigating Neuropsychology | John Bellone & Ryan Van Patten - NavNeuro | |
| 35 | — |  | Oceans: Life Under Water | Crowd Network | Greenpeace UK | |
| 36 | — | S | Sharkpedia | Meghan Holst and Amani Webber-Schultz | |
| 37 | — |  | ExtinctZoo | ExtinctZoo | |
| 38 | — | T | The Ocean Explained | Clément J.E. | |
| 39 | — | T | The Deep-Sea Podcast | Thomas Linley | |
| 40 | — | S | Seacreatures | Matt Testoni | |
| 41 | — | E | Entangled Health | Thomas Ehmer | |
| 42 | — | B | Beyond Jaws: Exploring Shark Science and Conservation | Speak Up For Blue | |
| 43 | — | V | Vertical Farming Podcast - Conversations with CEOs, Founders & Leaders in AgTech & CEA | Harry Duran | |
| 44 | 29 |  | People Who Read People: A Behavior and Psychology Podcast | Zachary Elwood | |
| 45 | 25 |  | All In The Mind | ABC | |
| 46 | 28 |  | Discovery | BBC World Service | |
| 47 | 23 |  | This Week in Space (Audio) | TWiT | |
| 48 | 5 |  | Choiceology with Katy Milkman | Charles Schwab | |
| 49 | 49 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 50 | 29 |  | BBC Inside Science | BBC Radio 4 | |
| 51 | 141 |  | Space Nuts: Astronomy Insights & Cosmic Discoveries | Professor Fred Watson and Andrew Dunkley | |
| 52 | 27 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 53 | 27 | E | Escape Forward: Connecting dots beyond the antitrust island | Escape Forward | |
| 54 | 45 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 55 | 122 | S | Students of Surgery | Martin Brand | |
| 56 | 22 | E | Environmental Insights: Conversations on policy and practice from the Harvard Environmental Economics Program | Harvard Environmental Economics Program | |
| 57 | 28 |  | What Remains | WRAL News | Raleigh, North Carolina | |
| 58 | 12 | B | Boring History for Sleep | Velvet | |
| 59 | 17 |  | The Weirdest Thing I Learned This Week | Popular Science | |
| 60 | 28 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 61 | 100 |  | Unexpected Elements | BBC World Service | |
| 62 | 31 | E | Editors in Conversation | American Society for Microbiology | |
| 63 | 31 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 64 | 27 |  | Bedtime Astronomy | Synthetic Universe | |
| 65 | 29 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 66 | 29 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 67 | 26 |  | Lingthusiasm - A podcast that's enthusiastic about linguistics | Gretchen McCulloch and Lauren Gawne | |
| 68 | — |  | DNA Today: A Genetics Podcast | Kira Dineen, Gene Pool Media | |
| 69 | 31 |  | AWESOME ASTRONOMY | Paul & Dr Jeni | |
| 70 | 31 | G | Gastroenterology Learning Network | Gastroenterology Learning Network | |
| 71 | — | S | Sustainable Futures: Designing Green Communities and Buildings | Green Roofs for Healthy Cities | |
| 72 | — | M | Medscape InDiscussion: Multiple Myeloma | Medscape | |
| 73 | 33 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 74 | 44 | Z | Zoo Logic | Dr. Grey Stafford | |
| 75 | 17 |  | Mysterious Radio: Paranormal, UFO and Lore Interviews | Podcast Audio House | |
| 76 | 13 |  | The Supermassive Podcast | The Royal Astronomical Society | |
| 77 | 103 |  | Need To Know | Bryce Zabel | |
| 78 | 25 |  | SciShow Tangents | Complexly | |
| 79 | 51 |  | The Best of Coast to Coast AM | iHeartPodcasts and Coast to Coast AM | |
| 80 | 5 |  | Mysterious Universe | 8th Kind | |
| 81 | 13 |  | Outside/In | NHPR | |
| 82 | 32 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 83 | 36 |  | Sustainability, Climate Change, Renewable Energy, Politics, Activism, Biodiversity, Carbon Footprint, Wildlife, Regenerative | Mia Funk | |
| 84 | 33 | N | National Geographic Magazine | Radio Eye | |
| 85 | 30 |  | Radiowissen | Bayerischer Rundfunk | |
| 86 | 40 |  | The Future of Everything | Stanford Engineering | |
| 87 | 32 |  | Songs 4 FRCR: Radiology FRCR 2A Revision | FRCR Revision | |
| 88 | 9 |  | Real Ghost Stories Online | Real Ghost Stories Online | Paranormal, Supernatural & Horror Radio | |
| 89 | 37 |  | Lost Women of Science | Lost Women of Science | |
| 90 | 23 |  | Mind & Life | Mind & Life Institute | |
| 91 | 10 |  | Completely Arbortrary | Completely Arbortrary | |
| 92 | 8 |  | New Books in Psychoanalysis | Marshall Poe | |
| 93 | 44 |  | Drilled | Pushkin Industries | |
| 94 | 32 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 95 | 13 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 96 | 36 |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 97 | 36 | L | Lifeworlds | Alexa Firmenich | |
| 98 | 41 |  | Astrum Space | Astrum | |
| 99 | 32 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 100 | 35 | P | Psychology | Yale School of Medicine | |
