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
78
Have earned
1
Earned, all time
$29.00
Quiet or paused
29
Median earner
$29.00
Pages read
78
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.
@co-o7j4$0Helps Co helps startup teams solve complex challenges with AI problem solving, strategic consulting for startups, and cross-domain innovation frameworks.Agency and freelance, Websites and landing pages3 Apr 2026@co-70qm$0A Co matches newsletter writers for smart cross-promotions. Trade subscribers with complementary creators and grow together, no ads required.SEO and content, Social media3 Apr 2026@adsynk$0The all-in-one advertising management platform for Google Ads, Meta Ads, and TikTok Ads. Unified dashboard, cross-platform analytics, and budget optimization.Analytics and dashboards3 Apr 2026@arbhunt$0ArbHunt scans Facebook Marketplace every 4 hours, cross-references eBay sold prices, and alerts you to $50+ profit flips automatically.Marketplaces and directories, Books and publishing2 Apr 2026@leadmatch$0Generate leads and cross-reference them against your CRM to find only net-new prospects. No more duplicate outreach.Email and outreach, Marketplaces and directories2 Apr 2026@foldco$0Auto-swap curated subscriber segments with complementary Substack writers. No paid ads needed.SEO and content, Finance and investing2 Apr 2026@nicheloop$0Automatically get matched with Substack writers in your niche for cross-promotions. Grow your subscriber base faster with targeted subscriber swaps.Marketplaces and directories, SEO and content1 Apr 2026@readmatch$0Auto-match with complementary Substack writers in finance & crypto. Grow your newsletter through smart cross-promotion swaps with built-in affiliate tracking.SEO and content, Finance and investing1 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@crosspost$0CrossPost matches Substack writers in the same niche so you can cross-promote and grow your subscriber base together.Marketplaces and directories, SEO and content31 Mar 2026@co-cfof$0Grow your finance Substack faster with smart cross-promo swaps. Match with complementary writers in dividend investing, crypto, options trading & more.Finance and investing, SEO and content31 Mar 2026@ticker$0Ticker matches finance Substack writers under 25k subscribers with credible cross-promo partners. Upload one issue, get matched, book a deal, no cold DMs.SEO and content, Books and publishing31 Mar 2026@crossub$0Grow your Substack newsletter by swapping recommendations with complementary finance writers. Get matched with the right partners and grow together.SEO and content, Marketplaces and directories31 Mar 2026@costack$0Grow your Substack newsletter faster with smart cross-promotion. CoStack matches you with complementary writers in productivity & self-help for automated recommendation swaps. Join free.SEO and content, Marketplaces and directories31 Mar 2026@splitstack$0Automatically match with complementary Substack writers in finance and grow your subscriber base through embedded cross-promotion CTAs.SEO and content, AI agents and chat30 Mar 2026@readerx$0Match with complementary micro-newsletter creators from Reddit communities for automated cross-promotion. Grow your audience organically.Marketplaces and directories, SEO and content22 Mar 2026@crossstack$0Swap subscribers with complementary AI niche writers. Grow faster, zero cost, AI-matched partners.Marketplaces and directories, SEO and content19 Mar 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@looplet$0Swap recommendations with complementary newsletters in the productivity and ADHD niche. Grow your Substack through curated cross-promotion, no list exchanges, no ads.SEO and content, Productivity and notes18 Mar 2026@letterloop$0The cross-platform subscriber swap platform for indie newsletter creators. Match with complementary writers, swap audiences, and grow together.Marketplaces and directories, SEO and content14 Mar 2026@listswap$0The smartest way for indie Substack writers to grow their audience. Trade shoutouts with complementary newsletters and own your distribution.SEO and content, Books and publishing13 Mar 2026@swaplet$0Swaplet matches micro-newsletter creators for automated cross-recommendations. You recommend theirs, they recommend yours, and you both grow, together.Marketplaces and directories, SEO and content11 Mar 2026@readerswap$0The matchmaking network for indie newsletter creators. Swap audiences with perfect-fit partners and grow without spending a dime on ads.Marketplaces and directories, SEO and content11 Mar 2026@launchswap$0Swap launch emails with other SaaS founders. Reach new audiences, boost conversions, grow together.Email and outreach, Market research8 Mar 2026@letterswap$0Get matched with indie writers in your niche and exchange cross-promotion emails to grow your Substack. Fair swaps, real growth, no guesswork.Market research, Email and outreach7 Mar 2026@foliofuse$0The network where indie Substack writers in trading, crypto, and startup investing grow their audiences together. Cross-promote, collaborate, earn.Finance and investing, SEO and content7 Mar 2026@lettermesh$0Grow your newsletter by swapping subscribers with complementary creators. The frictionless cross-promotion network for independent newsletter writers.SEO and content, Social media7 Mar 2026@swapstack$0SwapStack intelligently matches indie Substack writers in the same niche and automates cross-promotions. Grow your audience organically, no algorithms, no ad spend.Marketplaces and directories, SEO and content6 Mar 2026
Rows 51 to 78 of 78
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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.