| 1 | 2 |  | Making Sense with Sam Harris | Sam Harris | |
| 2 | 1 |  | Radiolab | WNYC Studios | |
| 3 | 7 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 4 | 2 |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 5 | 1 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 6 | — |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 7 | 1 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 8 | 6 |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 9 | 4 |  | Curious Cases | BBC Radio 4 | |
| 10 | 5 |  | All In The Mind | ABC | |
| 11 | 4 |  | Ologies with Alie Ward | Alie Ward | |
| 12 | 6 |  | BBC Inside Science | BBC Radio 4 | |
| 13 | 10 |  | The world, the universe and us | New Scientist | |
| 14 | 8 |  | Science Weekly | The Guardian | |
| 15 | 1 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 16 | 4 | G | Goodfellow Unit | The Goodfellow Unit (University of Auckland) | |
| 17 | 42 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 18 | 5 |  | CrowdScience | BBC World Service | |
| 19 | 26 |  | Head Shepherd | Mark Ferguson | |
| 20 | 8 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 21 | 12 |  | Speaking of Psychology | American Psychological Association | |
| 22 | 4 |  | More or Less | BBC Radio 4 | |
| 23 | 12 |  | Intelligent Design the Future | Discovery Institute | |
| 24 | 10 |  | Science Vs | Spotify Studios | |
| 25 | 16 | O | Our Changing World | RNZ | |
| 26 | — |  | Choiceology with Katy Milkman | Charles Schwab | |
| 27 | 2 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 28 | 7 |  | Discovery | BBC World Service | |
| 29 | 12 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 30 | 155 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 31 | — |  | Into the Impossible With Brian Keating | Big Bang Productions Inc. | |
| 32 | 7 |  | The Common Descent Podcast | Common Descent | |
| 33 | 38 |  | Blurry Creatures | Blurry Creatures | |
| 34 | 40 |  | Overheard at National Geographic | National Geographic | |
| 35 | 16 | M | MissPerceived | Audiocrafty | |
| 36 | 50 |  | Crash Course Pods: The Universe | Crash Course Pods, Complexly | |
| 37 | 75 |  | Unexplainable | Vox | |
| 38 | 80 |  | Stuff To Blow Your Mind | iHeartPodcasts | |
| 39 | 15 | B | Blazing the Trail | University of Sydney / Australian Museum / Break Thru Films | |
| 40 | 19 | P | Psychology | Yale School of Medicine | |
| 41 | 126 |  | The Grave Talks | Haunted, Paranormal & Supernatural | Ghost Stores, Haunted, Paranormal & Supernatural Stories | |
| 42 | — | F | Feed for Thought | Pioneer Brand Products NZ | |
| 43 | 135 |  | UAP Unidentified Alien Podcast | Gamut Podcast Network | |
| 44 | 5 |  | Origin Stories | The Leakey Foundation | |
| 45 | 139 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 46 | 16 |  | The Life Scientific | BBC Radio 4 | |
| 47 | — |  | The Orthobullets Podcast | Orthobullets | |
| 48 | 21 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 49 | — | N | New Books in Environmental Studies | Marshall Poe | |
| 50 | — |  | COMPLEXITY | Santa Fe Institute | |
| 51 | — |  | Nerdland Podcast | Lieven Scheire | |
| 52 | — |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 53 | — | K | Ko Papa Ko Rangi: Ahi Kaa | The Spinoff | |
| 54 | — |  | Most Terrifying Places in America | Travel Channel | |
| 55 | — | B | Bizarre & Fascinating Details | Sarah Rush | |
| 56 | — |  | World’s Wildest: Tales of Earth’s Most Extreme Creatures | Maya Higa & Connor O'Brien | |
| 57 | — |  | The Parkinson's Podcast | Davis Phinney Foundation | |
| 58 | 30 |  | DarkHorse Podcast | Bret Weinstein & Heather Heying | |
| 59 | 27 |  | Lost Women of Science | Lost Women of Science | |
| 60 | 27 | R | Rewilding In Action | Maureen Howard | |
| 61 | — |  | The End Of The World with Josh Clark | iHeartPodcasts | |
| 62 | — |  | American Journal of Ophthalmology Podcasts Collection | Various | |
| 63 | — | T | The Naked Scientists Podcast | The Naked Scientists | |
| 64 | — | T | The Physio Matters Podcast | Jack Chew | |
| 65 | — | P | PsychCrunch | The British Psychological Society Research Digest | |
| 66 | — | E | European Journal of Anaesthesiology | EJA - The EJA Podcast collection | EJA | |
| 67 | — | T | The FND Society Podcast | FND Society | |
| 68 | — |  | The History of Chemistry | Steve Cohen | |
| 69 | — |  | The Demystifying Cosmetics Podcast | Jennifer Cookson | Tagra Biotechnologies | |
| 70 | — | T | The Fibre Frontier | Dr Mark Ferguson | |
| 71 | — | A | Association of Academic Physiatrists | Physiatry News | |
| 72 | 32 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 73 | 37 | K | Kia Whakanuia te Whenua - The Landscape Foundation | Landscape Foundation Aotearoa | |
| 74 | 37 | S | Shirtloads of Science | Dr Karl Kruszelnicki | |
| 75 | 37 |  | The Psychology Podcast | iHeartPodcasts | |
| 76 | 27 |  | Science Friday | Science Friday and WNYC Studios | |
| 77 | 1 |  | SpaceTime with Stuart Gary | Stuart Gary | |
| 78 | 26 |  | That UFO Podcast | That UFO Podcast | |
| 79 | 37 | O | OVERSHOOT | Shrink Toward Abundance | Population Balance | |
| 80 | 37 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 81 | 34 |  | The Science of Birds | Ivan Phillipsen | |
| 82 | 36 |  | Bite Back with Abbey Sharp | Abbey Sharp / Frequency Podcast Network | |
| 83 | 3 |  | 5 Live Science Podcast | BBC Radio 5 Live | |
| 84 | 40 |  | Why This Universe? | Dan Hooper, Shalma Wegsman | |
| 85 | 37 |  | The Best of Coast to Coast AM | iHeartPodcasts and Coast to Coast AM | |
| 86 | 32 | A | Ask the Naked Scientists | Dr Chris Smith | |
| 87 | 36 |  | Paranormal Portal | Brent Thomas | |
| 88 | 35 | Q | Question of the Week, from the Naked Scientists | Dr Chris Smith | |
| 89 | 28 | T | The We Society | AcSS | |
| 90 | 35 |  | AcresUSA: Tractor Time | Tractor Time by Acres U.S.A. | |
| 91 | 35 | V | Voice of Tangaroa | RNZ | |
| 92 | 20 |  | The Climate Question | BBC World Service | |
| 93 | 26 |  | Total Disclosure Podcast | Tyler Roberts | |
| 94 | 30 | A | A Brief History of Stuff | Science Museum Group | |
| 95 | 35 |  | The Market Gardener Podcast | JM Fortier | |
| 96 | 38 | D | Drohnenschlacht – zwei Imker, drei Meinungen | bienen&natur | |
| 97 | 34 | C | Cut the Crop! | Foundation for Arable Research (NZ) | |
| 98 | 32 | N | Nature Conversations: Dr. Adam Forbes Interviews the Experts | Dr Adam Forbes | |
| 99 | 23 |  | Astrum Space | Astrum | |
| 100 | 38 |  | From The Shadows | Shane Grove | |
