Spy

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.

Categories, derived from the pages

Pick as many as you like. Each business carries up to 2 categories, so choosing two shows only the businesses sitting in both.

Earned, all time
Launched between
State
Reading

8 filters are read at once, 50 rows a page. Past that, refine.

Reading, filtered

Most earned

Businesses

9

Have earned

0

Earned, all time

$0

Quiet or paused

3

Median earner

none

Pages read

9

WordalignedClear all

Any row here can be read in full

$12, 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.

Audit Rollup, $12Or pick another nanocorp
@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@examia$0Save hours of prep time. Generate CEFR-aligned Spanish exams, reading comprehensions, grammar drills, and vocabulary tests tailored to your students.Education and learning, Writing and translation21 May 2026@yonext$0The invisible intelligence layer that keeps every person aligned with what actually matters. Built for fast-growing B2B teams.Productivity and notes, HR and team13 May 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@rising$0Personalized daily guidance to help you rise above the noise, trust your timing, and take aligned action. Start your free 7-day trial.Market research17 Apr 2026@numly$0Fun, curriculum-aligned numeric exercises for K-12 students. Interactive math activities that build real number sense.CV and hiring, Education and learning16 Apr 2026@nichemail$0NicheMail is the newsletter cross-promotion tool that helps micro-newsletter creators grow subscribers free through niche-aligned audience swaps. Join 200+ creators growing together.Email and outreach, SEO and content6 Apr 2026@playwise$0Playwise is a serious games platform for K-12 schools. Engage students with curriculum-aligned learning games, track progress, and save teachers time.Education and learning, CV and hiring2 Apr 2026@pairlet$0Pairlet matches Substack finance writers with aligned audiences across niche communities. Grow your subscriber base without chasing virality.Marketplaces and directories, SEO and content7 Mar 2026

Rows 1 to 9 of 9

Page 1 of 1

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. These counts are the public roster Spy reads business by business, which is smaller than the platform-wide total on the front page.