| 1 | — |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 2 | — |  | Radiolab | WNYC Studios | |
| 3 | — |  | NASA's Curious Universe | National Aeronautics and Space Administration (NASA) | |
| 4 | 10 | T | The Social Work Stories Podcast | The Social Work Stories Team | |
| 5 | 75 | T | The Thought Atlas Podcast | Blisado | |
| 6 | 2 | B | Boring History for Sleep | Velvet | |
| 7 | — |  | StarTalk Radio | Neil deGrasse Tyson | |
| 8 | 74 |  | The Best of Coast to Coast AM | iHeartPodcasts and Coast to Coast AM | |
| 9 | 91 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 10 | 125 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 11 | — |  | The Green Room: A Podcast from Obstetrics & Gynecology | Obstetrics & Gynecology (Green Journal) | |
| 12 | — |  | CREOGs Over Coffee | CREOGs Over Coffee | |
| 13 | — |  | You Are Not So Smart | You Are Not So Smart | |
| 14 | — |  | Vision Crossroads - feat. Rev. Leonidas The Optometrist Phenomenal VIP Program | Leonidas Johnson | |
| 15 | — | T | TSRA Podcast | TSRA | |
| 16 | 10 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 17 | 12 |  | The Rest Is Science | Goalhanger | |
| 18 | 12 |  | The Psychology Podcast | iHeartPodcasts | |
| 19 | 5 |  | Get Obsessed : With Living Your Best Life | Julie Lokun and Mika Altidor | |
| 20 | 16 |  | Instant Genius | Our Media | |
| 21 | 11 | A | ADPlusHausa | Podcast | ADPlusHausa | Podcast | |
| 22 | 155 |  | CrowdScience | BBC World Service | |
| 23 | 2 |  | Unexplainable | Vox | |
| 24 | 15 |  | Overheard at National Geographic | National Geographic | |
| 25 | 5 |  | More or Less | BBC Radio 4 | |
| 26 | 13 |  | BBC Inside Science | BBC Radio 4 | |
| 27 | 16 | T | THE THANOS SNAP | TheThanosSnap | |
| 28 | 16 |  | The Medbullets Step 2 & 3 Podcast | Medbullets | |
| 29 | 2 | N | New Books in Economics | Marshall Poe | |
| 30 | 15 |  | The Science of Everything Podcast | James Fodor | |
| 31 | 15 | M | Messy Social Work | Messy Social Work | |
| 32 | 15 |  | Science Of Everything | Swathi | |
| 33 | 15 |  | The Medbullets Step 1 Podcast | Medbullets | |
| 34 | 15 | S | Social Work Radio | Social Work Radio | |
| 35 | 44 |  | Astrum Space | Astrum | |
| 36 | 5 |  | All In The Mind | ABC | |
| 37 | — | T | The Field Guide to Particle Physics | Sean Downes | |
| 38 | 19 | T | The Science of Self | Peter Hollins | |
| 39 | 105 |  | Dr. Chapa’s OBGYN Clinical Pearls | Dr. Chapa’s Clinical Pearls | |
| 40 | 18 |  | Livestock Community Podcast | JEFO | |
| 41 | 2 |  | Curious Cases | BBC Radio 4 | |
| 42 | 2 |  | Short Wave | NPR | |
| 43 | 20 |  | Gustavo | oi Kakashi Kakashi Black | |
| 44 | 19 |  | The Long Run with Luke Timmerman | Timmerman Report | |
| 45 | 15 |  | Science Weekly | The Guardian | |
| 46 | — | I | Ideas Untrapped | Tobi Lawson | |
| 47 | 44 |  | Clinical Chemistry Podcast | Association for Diagnostics and Laboratory Medicine | |
| 48 | — | V | VoxDev Development Economics | VoxDev.org | |
| 49 | 5 | W | Wild Tales | Nature Podcast | National Trust | |
| 50 | 5 | U | Under the Cortex | psychologicalscience | |
| 51 | 17 | H | Heart Failure in Focus | Radcliffe Cardiology | |
| 52 | 17 | P | Parallax by Ankur Kalra | Radcliffe Cardiology | |
| 53 | 17 |  | Professor Brian Cox Live Q and A Podcast | The Cosmic Shambles Network | |
| 54 | 17 | I | Influence Psychology and Persuasion - Mike Sweet - 10 Minute Coach - Develop and Discover | Mike Sweet | |
| 55 | 10 |  | Let's Learn Everything! | Maximum Fun | |
| 56 | 23 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 57 | 62 |  | Planet Em | Emily McDonald | |
| 58 | 110 |  | Robinson's Podcast | Robinson Erhardt | |
| 59 | 130 | R | RadioGraphics Podcast | RSNA | Radiological Society of North America (RSNA) | |
| 60 | 136 |  | La Conversation scientifique | France Culture | |
| 61 | 33 |  | Multiverse 5D @ M5D | Multiverse 5D Network | |
| 62 | 33 | O | Over the Counter | Drug Topics | |
| 63 | 32 |  | The Michael Shermer Show | Michael Shermer | |
| 64 | 21 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 65 | 19 |  | Stanford Medcast: Expert Voices in Medicine and Healthcare | Stanford University School of Medicine | |
| 66 | 5 |  | Making Sense with Sam Harris | Sam Harris | |
| 67 | 20 | E | Epidemiology Counts from the Society for Epidemiologic Research | Sue Bevan - Society for Epidemiologic Research (SER) | |
| 68 | 20 |  | The Premed Years | Ryan Gray | |
| 69 | 37 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 70 | 32 |  | The Quanta Podcast | Quanta Magazine | |
| 71 | 29 |  | Chemistry Made Simple | Matthew Macariou | |
| 72 | 23 |  | Science Vs | Spotify Studios | |
| 73 | 21 |  | Stanford Psychology Podcast | Stanford Psychology | |
| 74 | 19 |  | Speaking of Psychology | American Psychological Association | |
| 75 | 19 | N | New Books in Psychology | Marshall Poe | |
| 76 | 51 |  | The Referral with Dr. Karan | Sony Music Entertainment | |
| 77 | 19 | S | Shots of Science Vs | Spotify Studios | |
| 78 | 19 |  | Origin Stories | The Leakey Foundation | |
| 79 | 19 |  | Science Stuff To Blow Your Mind | Podgo | |
| 80 | 30 |  | Mysterious Universe | 8th Kind | |
| 81 | 30 | L | Let's Talk Micro | Luis Plaza | |
| 82 | 19 |  | Ologies with Alie Ward | Alie Ward | |
| 83 | 30 |  | Particles of Thought | GBH | |
| 84 | 30 |  | On Humans | Ilari Mäkelä | |
| 85 | 16 |  | Babbage from The Economist | The Economist | |
| 86 | 24 |  | Unexpected Elements | BBC World Service | |
| 87 | 23 |  | Quarks Daily | Quarks | |
| 88 | 22 |  | Science Magazine Podcast | Science Magazine | |
| 89 | 22 |  | Physics World Weekly Podcast | Physics World | |
| 90 | 22 | R | Richard Wiseman's On Your Mind | Podimo & TellTale | |
| 91 | 10 |  | The Orthobullets Podcast | Orthobullets | |
| 92 | 22 | N | New Books in Political Science | New Books Network | |
| 93 | 22 |  | In Defense of Plants Podcast | In Defense of Plants | |
| 94 | 22 |  | Flash Forward | Rose Eveleth | |
| 95 | 22 | T | Theoretical Physics Schools (ASC) | The Arnold Sommerfeld Center for Theoretical Physics (ASC) | |
| 96 | 22 | A | AgTech Digest | AgTech Media Group | |
| 97 | 22 | R | Reason with Science | Jitender Kumar | |
| 98 | 22 |  | Empresa Socialmente Responsable: JUMEX | Abi Mendoza | |
| 99 | 22 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 100 | 22 | O | Oil & Gas Journal ReEnterprised | Endeavor Business Media | |
