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

12

Have earned

0

Earned, all time

$0

Quiet or paused

4

Median earner

none

Pages read

12

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.

@tractiv$0Curated, human-verified B2B lead lists for targeted niches, ready for sales teams to use immediately.CRM and sales, Email and outreach3 Aug 2026@substrd$0Substrd helps Substack writers in micro-niches auto-swap subscriber lists with complementary newsletters. Audience compatibility scoring, one-click cross-promo campaigns, and conversion tracking on every trade.SEO and content, Analytics and dashboards31 Jul 2026@relayer$0Relayer auto-matches Substack writers in crypto niches, trading, yield farming, governance, and orchestrates subscriber swaps via automated email sequences.Finance and investing, Email and outreach1 Jun 2026@byliner$0Find your perfect newsletter cross-promotion partner. Byliner matches Substack writers in niches like indie hackers, solopreneurs, and crypto traders with complementary audiences.SEO and content, Finance and investing14 May 2026@bylinked$0Bylinked matches micro-newsletter creators (5K, 50K subs) in adjacent niches and auto-generates co-promotion swap templates. Zero cold outreach needed.Email and outreach, Marketplaces and directories11 May 2026@pulsio$0Stay ahead with Pulsio. Get the freshest intelligence on the niches you care about, AI, Crypto, Tech, Business, Marketing, curated and delivered daily.Market research, Finance and investing8 May 2026@nichelab$0NicheLab scans TikTok, Instagram, and YouTube Shorts to surface untapped content niches before they go mainstream. Built for creators, marketers, and entrepreneurs.Social media, Agency and freelance2 May 2026@nichex$0NicheX automatically matches mid-tier Substack writers in adjacent niches and facilitates curated subscriber swaps. Grow your newsletter with readers who actually care.SEO and content, Marketplaces and directories28 Apr 2026@quillsync$0QuillSync auto-matches Substack writers in dividend investing, options trading, and crypto niches, then automatically swaps your best-performing issues to grow both audiences.Finance and investing, Books and publishing24 Apr 2026@crossroll$0CrossRoll connects indie Substack writers in complementary niches so they can auto-swap subscriber lists and grow together. Join the waitlist today.SEO and content, Scheduling and booking13 Apr 2026@venturize$0AI-curated business ideas in high-margin niches with automation blueprints to launch fast.Market research, AI agents and chat1 Apr 2026@swaploop$0SwapLoop matches indie Substack writers in finance, crypto, and DeFi niches to auto-swap subscribers with complementary newsletters. Zero ad spend. Pure organic growth.SEO and content, Finance and investing7 Mar 2026

Rows 1 to 12 of 12

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; 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.