| 1 | — |  | Ologies with Alie Ward | Alie Ward | |
| 2 | — |  | The Infinite Monkey Cage | BBC Radio 4 | |
| 3 | — |  | Curious Cases | BBC Radio 4 | |
| 4 | 4 |  | More or Less | BBC Radio 4 | |
| 5 | 4 |  | Uncharted with Hannah Fry | BBC Radio 4 | |
| 6 | 2 |  | Making Sense with Sam Harris | Sam Harris | |
| 7 | 1 |  | Hidden Brain | Hidden Brain, Shankar Vedantam | |
| 8 | 3 | S | Show Me the Science with Luke O'Neill | Newstalk | |
| 9 | 1 |  | Rare Earth | BBC Radio 4 | |
| 10 | 1 |  | BBC Inside Science | BBC Radio 4 | |
| 11 | 4 |  | Science Weekly | The Guardian | |
| 12 | — |  | Reinvent Yourself with Dr. Tara | Dr. Tara Swart Bieber | |
| 13 | 2 | F | Futureproof with Jonathan McCrea | Newstalk | |
| 14 | 145 |  | The Psychology Podcast | iHeartPodcasts | |
| 15 | 3 | M | Mooney Goes Wild | RTÉ Radio 1 | |
| 16 | 19 |  | Science In Action | BBC World Service | |
| 17 | — |  | Proxy with Yowei Shaw | Y3 Productions | |
| 18 | 4 |  | Radiolab | WNYC Studios | |
| 19 | 56 |  | Daniel and Kelly’s Extraordinary Universe | iHeartPodcasts | |
| 20 | 28 | N | New Scientist Weekly | New Scientist | |
| 21 | 48 | C | CountryWide | RTÉ Radio 1 | |
| 22 | 6 |  | The Great Simplification with Nate Hagens | Nate Hagens | |
| 23 | 54 |  | All In The Mind | ABC | |
| 24 | 65 | F | Fossil vs Future | James Cameron and Daisy Nicholls | |
| 25 | 12 |  | Manifold | Steve Hsu | |
| 26 | 87 |  | Das Wissen | SWR | SWR | |
| 27 | — |  | Physics World Weekly Podcast | Physics World | |
| 28 | — |  | EverydaySpy Podcast | Andrew Bustamante | |
| 29 | — |  | IQ - Wissenschaft und Forschung | Bayerischer Rundfunk | |
| 30 | 148 |  | Google DeepMind: The Podcast | Hannah Fry | |
| 31 | — | B | BJD Talks | BJD | |
| 32 | — |  | Constant Wonder | BYUradio | |
| 33 | — |  | Why Do We Do That? | BBC Radio 4 | |
| 34 | — | F | Feet on the Soil | Soil Boy | |
| 35 | — | T | The Perception & Action Podcast | Rob Gray | |
| 36 | — | T | Tom MacSweeney's Maritime Podcast | Tom MacSweeney | |
| 37 | — | К | КритМышь | Александр Головин | |
| 38 | — | C | Creative Therapy Umbrella | Kate Shannon | |
| 39 | — |  | The Wild Idea | Wild Idea Media | |
| 40 | 18 |  | StarTalk Radio | Neil deGrasse Tyson | |
| 41 | 17 |  | The world, the universe and us | New Scientist | |
| 42 | 26 |  | Alive Again | iHeartPodcasts | |
| 43 | 26 | I | In Your Nature | By BirdWatch Ireland | |
| 44 | 26 |  | Something You Should Know | Mike Carruthers | OmniCast Media | |
| 45 | 9 |  | Outrage + Optimism: The Climate Podcast | Persephonica and Global Optimism | |
| 46 | 19 |  | The Joy of Why | Steven Strogatz, Janna Levin and Quanta Magazine | |
| 47 | 27 |  | Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas | Sean Carroll | |
| 48 | 29 |  | Nature Podcast | Springer Nature Limited | |
| 49 | 20 |  | The Life Scientific | BBC Radio 4 | |
| 50 | 4 |  | The Origins Podcast with Lawrence Krauss | Lawrence M. Krauss | |
| 51 | 53 |  | Therapist Uncensored Podcast | Sue Marriott LCSW, CGP & Ann Kelley PhD | |
| 52 | 27 | F | Farming Today | BBC Radio 4 | |
| 53 | 32 |  | Scotland Outdoors | BBC Radio Scotland | |
| 54 | 24 | T | The Dairy Trail | Agriland Media | |
| 55 | 13 | N | Naturefile | RTÉ lyric fm | |
| 56 | 102 |  | Deep Dive: MH370, Remastered | Jeff Wise | |
| 57 | 23 |  | Outside/In | NHPR | |
| 58 | 83 |  | A Life More Wild | Canopy & Stars | |
| 59 | 33 |  | CrowdScience | BBC World Service | |
| 60 | 22 |  | Deep Seed - Regenerative Agriculture | Raphael Esterhazy | |
| 61 | 24 |  | This Podcast Will Kill You | Exactly Right and iHeartPodcasts | |
| 62 | 30 |  | Real Organic Podcast | Real Organic Project | |
| 63 | 30 |  | Your Brain On | Drs. Ayesha and Dean Sherzai | |
| 64 | — |  | Mind & Life | Mind & Life Institute | |
| 65 | 26 |  | Completely Arbortrary | Completely Arbortrary | |
| 66 | 26 | B | Bildningspodden | Anekdot | |
| 67 | 36 |  | Science Vs | Spotify Studios | |
| 68 | 27 |  | Drilled | Pushkin Industries | |
| 69 | 26 |  | Discovery | BBC World Service | |
| 70 | 23 |  | The Naked Scientists Podcast | The Naked Scientists | |
| 71 | 48 | B | Boring History for Sleep | Velvet | |
| 72 | 23 |  | The Climate Question | BBC World Service | |
| 73 | 23 |  | Short Wave | NPR | |
| 74 | 12 |  | The Resetter Podcast with Dr. Mindy | Dr. Mindy Pelz | |
| 75 | 23 |  | Invisibilia | NPR | |
| 76 | 25 |  | Geology Bites | Oliver Strimpel | |
| 77 | 22 |  | The Science of Happiness | PRX and Greater Good Science Center | |
| 78 | 18 |  | The Skeptic Podcast | The Skeptic | |
| 79 | 26 |  | The Science Show | ABC | |
| 80 | 23 | F | Fossil Huntress — Palaeo Sommelier | Fossil Huntress | |
| 81 | 27 |  | Blurry Creatures | Blurry Creatures | |
| 82 | 21 |  | Flow Radio | Flow Research Collective | |
| 83 | 24 |  | The Grave Talks | Haunted, Paranormal & Supernatural | Ghost Stores, Haunted, Paranormal & Supernatural Stories | |
| 84 | 28 |  | Hunting Dog Confidential | Project Upland Media Group | |
| 85 | 22 | N | New Scientist Colab Podcasts | DMG Media | |
| 86 | 22 | S | See See by Ceci | Dr. Cecilia Ponce Rivera | |
| 87 | 29 | T | The OTA Podcast | OTA Podcast Committee | |
| 88 | 17 |  | The Plodcast | Our Media | |
| 89 | 24 |  | The Future of Everything | Stanford Engineering | |
| 90 | 24 |  | The Habitat | Gimlet | |
| 91 | 24 | W | Why Aren't You A Doctor Yet? | Black & Nerdy | |
| 92 | 24 |  | Dr Giles Yeo Chews the Fat | Orion Publishing Ltd. | |
| 93 | 6 |  | Sasquatch Chronicles | Sasquatch Chronicles - Bigfoot Encounters | |
| 94 | 21 | B | Bird Songs with Seán Ronayne | RTÉ lyric fm | |
| 95 | 25 |  | Theories of Everything with Curt Jaimungal | Theories of Everything | |
| 96 | 24 |  | Paranormal Mysteries | Nic Ryan | Paranormal Mysteries Podcast | |
| 97 | 23 | W | Why? with Emma Kennedy | Podmasters | |
| 98 | 18 |  | The Skeptics' Guide to the Universe | Dr. Steven Novella | |
| 99 | 16 |  | That's Just Wild | Fresh Air | |
| 100 | 21 |  | Science Talk | Scientific American | |
