How to advertise on The Knowledge Project: what it costs, who buys, and how to book

The Knowledge Project sells its host-read inventory direct, through Shane Parrish's own Farnam Street operation rather than a large ad network, and it's quoted per campaign instead of off a public rate card. Spotsnow data shows every tracked host-read ad on the show is a direct-response buy, and the top spender, Matic, has run roughly 5 to 6 ads on the feed. For a buyer, that combination means you're entering a feed where coded offers are the norm, not an experiment you'd be running alone. Spotsnow estimates all of this from tracked advertiser activity, not audience surveys.

You can see the full advertiser history on the The Knowledge Project profile on Spotsnow.

Why The Knowledge Project is built for host-read direct response

Shane Parrish hosts. He founded Farnam Street, wrote the New York Times and Wall Street Journal bestseller Clear Thinking plus The Great Mental Models series, and spent more than a decade in Canadian intelligence working cybersecurity before any of it.

The show sits in business, with education, history, and technology underneath it. Spotsnow data shows the direct-response share on tracked host-reads is at the ceiling here: codes, vanity URLs, and attributable offers, not brand awareness impressions. That matters because of how the show is built. Episodes are long, single-guest conversations that ask for sustained attention, and listeners who stay through a forty-minute argument about second-order thinking do not reflexively skip at the break. A host-read borrows that attention. Spotsnow estimates audience size at roughly 365,000 listeners, an estimate rather than an audited count, and it skews toward men, high-income professionals, concentrated in the US.

The engagement signals back it up. The show carries an Apple Podcasts average of 4.7 across roughly 2,470 to 2,740 ratings, and the YouTube channel sits at roughly 455,000 subscribers. The influence is concentrated where the work lives, in the feed and on video, which is exactly where your read would run.

Who is advertising on The Knowledge Project

The roster reads like a media plan built for executives: fintech, enterprise software, financial services, and premium consumer brands. Recognizable names Spotsnow attributes to the feed include Stripe, LMNT, Indeed, Rocket Mortgage, and SoFi.

The anchor advertisers, broken down

Matic

Matic sells autonomous home robots direct to consumers. Spotsnow attributes roughly 5 to 6 ads to the brand on this show and estimates total spend at over $80K, all of it host-read and classified direct-response. A high-priced hardware product needs a listener willing to sit through an explanation before buying, and that's the whole premise of this audience.

Element (LMNT)

LMNT sells zero-sugar electrolyte stick packs direct to consumers, and it's the one anchor with a clear food and beverages profile on the roster. Spotsnow attributes roughly 4 to 6 ads to the brand here, with estimated total spend over $50K, mostly host-read and direct-response. It works because the performance-and-habits crowd that follows mental models also buys the inputs, and a sample pack is the cheapest possible yes.

AppLovin

AppLovin runs mobile app marketing and monetization software. Spotsnow attributes roughly 5 to 6 ads to the brand on the feed with estimated total spend over $10K, mostly produced rather than host-endorsed. The buy makes sense as a reach play against founders and operators who sign software contracts.

The outlier worth noting

AppLovin is also the structural exception. Its mix leans produced, which tells you a brand-awareness objective can run here alongside the direct-response core without looking out of place. If your category can't carry a coded offer, there's precedent for buying the association instead.

All spend figures are Spotsnow estimates.

Why business brands cluster here

Parrish's authority is procedural, not aspirational. He doesn't sell a lifestyle, he sells a way of deciding, and the people who show up weekly for that are the same people who approve software budgets, refinance a mortgage, hire, and move money. A fintech read on this feed lands next to an hour on capital allocation. That's not adjacency by accident, it's the reason Stripe, SoFi, Rocket Mortgage, and KeyBank all end up in the same rotation Spotsnow tracks.

The second thing driving the cluster is tolerance for length. A compliance-heavy financial product needs thirty seconds of real explanation, and a listener trained on long-form conversation will give it. Compare that to a feed built on quick hits, where the same script gets skipped. Business brands cluster here because this is one of the few places where a considered purchase can actually be explained, and where Spotsnow data shows the coded version of that pitch is already what everyone else is running.

How your ad could sound

Here's a real spot from the feed, a produced Stripe read dropped into a Charlie Munger episode.

What works: the proof is concrete. "Stripe powers all the Forbes AI 50 who have monetized" is a specific claim aimed squarely at operators, and the handoff back into Munger on cigar-butt investing is clean enough that nothing jars. What's worth improving: the close. "Learn how you can power any business model at stripe.com billing" is a soft landing with no urgency and no reason to act today, and spoken URLs with a trailing path are easy to mishear. A host-read fixes both. When Parrish reads Granola himself, he opens on a felt problem, drops a personal line ("I even use it when I'm listening to podcasts"), and lands a single offer with the code in plain sight. That sequence, problem, personal proof, one unmissable offer, is what you want your script to copy.

View what a great sample ad looks like here.

What makes a show like this convert

1. The format carries the pitch. Long single-guest episodes hold attention through the break, so a thirty-second explanation gets heard instead of scrubbed.
2. The host's credibility transfers. Parrish built Farnam Street and two bestselling books on judgment, so an endorsement from him reads as a vetting decision rather than a paid slot.
3. The audience can buy. Spotsnow estimates roughly 365,000 listeners, skewing male, high-income, and heavily US-based, which is the profile for considered purchases and B2B software.
4. Advertisers come back. Matic has run roughly 5 to 6 ads here per Spotsnow, and brands with coded attribution do not renew that many times unless the math clears.

The Knowledge Project in a nutshell

Listeners are mostly men, high-income professionals and operators, concentrated in the US, and Spotsnow estimates the audience at roughly 365,000. The brands already there are fintech, enterprise software, and premium consumer, buying mostly host-read reads with trackable offers, with a smaller produced lane for awareness. Inventory is quoted per campaign and sold direct rather than through a big network. If you need attribution, this feed fits; if you want association with a serious business audience, there's precedent for that too.