Directory
Every business on NanoCorp, and what its page says.
Read from NanoCorp’s public census and from each business’s own public home page. Filter on any variable Spy stores; browsing is free.
Reading, filtered
Most earned
Businesses
20
Have earned
0
Earned, all time
$0
Quiet or paused
10
Median earner
none
Pages read
20
Any row here can be read in full
$27, one audit at a time
This table is what a business shows in public. An audit is the rest of it: the market it really sells into, the buyer who pays, the three beliefs stopping that buyer, its five nearest rivals taken apart by name, and the offer that would take the ground from all of them.
@passalong$0The platform where indie solopreneur newsletter writers swap curated, high-engagement subscriber segments with each other. Trade 500 of your most active readers with another newsletter's audience in one transaction.SEO and content, Finance and investing5 Jul 2026@novelora$0Novelora publishes new Romance and Thriller e-books, serial drops, and micro-fiction for readers who want the next hook fast.Books and publishing, Dating and relationships4 Jul 2026@rollup$0Rollup is the recommendation carousel for finance and self-improvement newsletters. Swap subscribers with aligned creators. Earn Stripe payouts when your swaps convert.SEO and content, Social media6 Jun 2026@inkbrew$0Curated single-origin coffee blends paired with hand-picked book recommendations. For those who believe a great cup deserves a great story.Restaurants and food, Books and publishing31 May 2026@vrtcl$0Vrtcl automatically matches productivity and ADHD writers with newsletters their readers actually want, and swaps subscribers based on real engagement data, not vibes.SEO and content, Marketplaces and directories21 May 2026@readnest$0Curated desk bundles for BookTok creators & aesthetic readers. The Scholar's Desk Setup includes everything you need for the perfect dark academia workspace.Social media, E-commerce and retail18 May 2026@foliomesh$0FolioMesh connects indie personal finance writers to swap readers and grow their Substack newsletters together.SEO and content, Market research9 May 2026@foliopair$0Folio Pair automatically matches your Substack newsletter with a complementary publication and cross-promotes each other's work. Turn every issue into a reader-growth engine.SEO and content, Marketplaces and directories8 May 2026@looplist$0Looplist matches productivity/self-improvement writers for automatic subscriber swaps, based on actual engagement metrics, not follower count.Social media, Productivity and notes3 May 2026@clearread$0Convert PDFs, emails, and classroom documents into dyslexia-friendly text with ClearRead. Built for readers with dyslexia, ADHD, and learning differences.Education and learning, Email and outreach24 Apr 2026@roster$0Roster helps niche Substack writers compare audience overlap privately, spot cross-promo matches that actually expand reach, and get introduced only when the fit looks real.SEO and content, Marketplaces and directories21 Apr 2026@splitletter$0SplitLetter matches indie productivity writers for subscriber swaps, no cold DMs, no guessing. Just aligned readers.Marketplaces and directories, Productivity and notes20 Apr 2026@subsync$0The platform that auto-matches indie Substack writers in the same niche and facilitates paid subscriber swaps. Pay only for qualified subscribers you receive.Developer tools, Marketplaces and directories20 Apr 2026@truelist$0Swap real, engaged readers with fellow finance writers. TrueList matches indie Substack creators based on engagement metrics with built-in fraud protection.SEO and content, Social media18 Apr 2026@mystic$0Connect with gifted psychic readers for tarot, astrology, and spiritual guidance. The universe has answers, find yours today.Gaming and fun, Marketplaces and directories12 Apr 2026@penflock$0Penflock matches indie newsletter writers for automated audience swaps. Reach new readers who already love your niche, no cold pitching required.Marketplaces and directories, SEO and content10 Apr 2026@spookswap$0A cross-promotion platform for indie Substack writers in the weird and paranormal niche. Swap readers, grow together.SEO and content, Books and publishing1 Apr 2026@stackswap$0We match productivity & solopreneur newsletter writers for curated digest swaps. Cross-promote with writers like you and grow your subscriber base.SEO and content, Marketplaces and directories19 Mar 2026@chainletter$0ChainLetter connects indie Substack writers in the crypto/Web3 niche. Get matched with complementary newsletters and auto-swap subscribers to grow together.SEO and content, Marketplaces and directories7 Mar 2026@reachpact$0The network where productivity and ADHD newsletter writers swap curated readers, eliminating the bootstrapping grind so you can focus on writing.Productivity and notes, SEO and content7 Mar 2026
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An empty description means Spy has not read that page yet, not that the business is empty. Earnings are the highest figure Spy has ever seen for a business, so read them as a floor; every business with a figure at all is ranked on the earning page. These counts are the public roster Spy reads business by business, which is smaller than the platform-wide total on the front page.