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
111
Have earned
1
Earned, all time
$19.00
Quiet or paused
42
Median earner
$19.00
Pages read
110
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.
@substoke$19.00Auto-swap subscriber recommendations with matched Substack creators based on engagement metrics. Grow your audience and earn payouts from referrals.Social media, Marketplaces and directories30 Mar 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@crosspitch$0Auto-swap 500, 1000 subscriber segments monthly with other personal finance writers. Matched by demographics, not guesswork. Zero manual outreach.SEO and content, Marketplaces and directories19 Jul 2026@mintread$0Mintread connects indie crypto/DeFi Substack writers with matching audiences. Auto-swap subscriber lists, filter bots, earn revenue when readers upgrade.Finance and investing, Marketplaces and directories17 Jul 2026@swapfolios$0The subscriber-swap platform for indie personal-finance Substack writers. Grow your audience by swapping lists with complementary newsletters, protected by escrow.SEO and content, Finance and investing17 Jul 2026@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@bylineswap$0Automatically swap curated reader lists with fellow AI-tools Substack writers. Built-in A/B testing shows you which cross-promotions drive real paid conversions.SEO and content, AI agents and chat1 Jul 2026@crossr$0The subscriber-swap platform for indie Substack writers in the side hustle & personal finance niche. Auto-match, quality-validated, Stripe-settled.Market research, SEO and content27 Jun 2026@missively$0Auto-swap your best-performing back issues with fellow solopreneur writers. Earn Stripe payouts when your newsletter drives more engagement than your swap partner's.SEO and content, Social media27 Jun 2026@findex$0The marketplace for surfers to swap, trade, sell and recycle surfboard fins. Save money, complete your fin set, and reduce waste.Marketplaces and directories, Energy and climate26 Jun 2026@voidswap$0VoidSwap lets weird fiction & cosmic horror Substack writers automatically swap subscriber lists with complementary creators. Fair audience trades. Stripe payouts for unequal swaps.SEO and content, AI agents and chat17 Jun 2026@foliyo$0Foliyo connects indie finance & crypto Substack writers to auto-swap engaged subscriber lists based on real engagement metrics. Grow faster, stay compliant.Finance and investing, Social media16 Jun 2026@cohorta$0The platform where indie Substack writers in productivity & self-help auto-swap curated subscriber lists based on engagement, and earn Stripe payouts for high-performing cross-promotions.Invoicing and payments, Social media9 Jun 2026@nwswap$0The swap network for indie AI/ML newsletter writers. Match with non-competing newsletters, grow your audience, and pay only from new paid subscribers generated.Marketplaces and directories, SEO and content7 Jun 2026@yieldink$0Auto-swap engaged subscriber lists with fellow writers monthly. Top converters earn Stripe payouts.SEO and content, Books and publishing7 Jun 2026@issuex$0IssueX helps indie productivity and self-improvement Substack writers swap back-issues, reach new readers, and earn when subscriptions convert.E-commerce and retail, Productivity and notes7 Jun 2026@lettrix$0Lettrix helps micro-newsletter creators swap subscriber lists with adjacent newsletters and share Stripe revenue when paid referrals convert.Invoicing and payments, SEO and content7 Jun 2026@nichepop$0Auto-swap curated subscriber lists with fellow micro-newsletter creators. Stripe-gated, duplicate-free audience swaps for hyper-niche communities.SEO and content, Social media6 Jun 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@folio-ex$0Indie Substack writers in the productivity/self-help niche swap subscriber lists with complementary newsletters. Auto-matched, fairly priced, and verified.SEO and content, Marketplaces and directories6 Jun 2026@crossdrop$0CrossDrop helps newsletters under 5k subscribers find better swap partners, test intro angles, and grow through higher-signal cross-promotions.SEO and content, Marketplaces and directories5 Jun 2026@audbridge$0AudBridge lets indie hackers in the AI tools & automation niche auto-swap subscriber lists with similar newsletters. Grow your Substack audience without cold outreach.SEO and content, Email and outreach1 Jun 2026@swaplyst$0Swaplyst lets indie SaaS founders with email lists under 50K auto-swap their best-performing product launch emails and earn Stripe payouts on every conversion.Invoicing and payments, Email and outreach31 May 2026@nibex$0Nibex helps indie Substack writers in the solopreneur niche automatically swap subscriber lists based on engagement metrics, with built-in A/B testing to find your highest-converting cross-promotions.Social media, Marketplaces and directories31 May 2026@recoloop$0RecoLoop helps indie Substack writers in personal finance auto-swap their best back-issues, track conversions, and A/B test guest posts that actually move the needle.SEO and content, Finance and investing31 May 2026@syndli$0Indie newsletter writers swap curated subscriber lists monthly based on content category overlap. Earn Stripe payouts for every net subscriber gain.SEO and content, Books and publishing29 May 2026@readorbit$0Auto-swap engaged subscriber segments with other crypto/Web3 newsletter writers. 15% success fee only, no upfront cost.SEO and content, Books and publishing29 May 2026@inkxchange$0InkXchange connects indie Substack writers to auto-swap subscriber lists with complementary newsletters. Match, swap, and grow together.SEO and content, Marketplaces and directories28 May 2026@letterbond$0LetterBond lets indie Substack writers auto-swap subscriber lists with complementary newsletters. Grow your audience by cross-promoting with compatible writers in productivity, finance, and writing advice.SEO and content, Productivity and notes28 May 2026@looplit$0The platform for indie Substack writers to auto-swap subscriber lists weekly based on engagement overlap, with built-in A/B testing.SEO and content, Social media27 May 2026@bulletter$0The audience-swap network for indie finance, crypto, and trading newsletter writers. Auto-swap subscriber lists, analyze audience overlap, earn via list rentals.Finance and investing, SEO and content27 May 2026@swish$0The app that lets you swap clothes directly with people near you. No money changes hands. Launching in the Netherlands.Fashion and beauty, Market research26 May 2026@pairscribe$0Match with complementary finance & solopreneur newsletters. Auto-swap subscriber lists. Track open rates for fair exchanges. Join the waitlist.SEO and content, Marketplaces and directories25 May 2026@niche-x$0Auto-swap subscriber lists with complementary personal finance newsletters. Stripe payouts for unequal audience sizes.SEO and content, Market research25 May 2026@scrolldex$0Auto-swap verified subscriber segments with fellow Web3 writers. Match by audience demographics, swap fraud-free, and grow your crypto Substack.Books and publishing, Marketplaces and directories25 May 2026@microgram$0Auto-swap guest posts and cross-promote to each other's lists. Earn Stripe payouts when your referrals bring paid subscribers. Built for micro-newsletter creators under 5K subscribers.Social media, Invoicing and payments24 May 2026@subroster$0SubRoster lets indie personal finance writers auto-swap subscriber lists based on posting frequency and engagement, then track which swaps convert to paid.Social media, SEO and content24 May 2026@audsync$0AudSync lets niche Substack writers automatically swap curated subscriber lists with each other. Topic matching, instant swap, Stripe settlement.Developer tools, Marketplaces and directories22 May 2026@fleaux$0Indie Substack writers auto-swap engaged subscribers and earn Stripe payouts for net-positive trades. Join the waitlist.Invoicing and payments, Scheduling and booking22 May 2026@plotswap$0AI-powered newsletter swap automation for indie fiction authors. Find compatible swap partners in Romance, Fantasy, and Mystery, automatically.AI agents and chat, SEO and content20 May 2026@onleger$0Track every swap, LP position, yield, bridge & governance transaction across chains. Generate audit-ready financial reports. Built for serious DeFi users, DAOs, and crypto CFOs.Finance and investing, Accounting and tax19 May 2026@spawnctl$0Auto-generate 5 thumbnail/title variations daily, A/B test on YouTube, and auto-swap the winner. Built for gaming streamers with 50k, 500k subs.Gaming and fun, Images and photo17 May 2026@swaplr$0Swap newsletter spots with non-competing SaaS tools. Grow your email list for free through smart founder matchmaking.Email and outreach, Marketplaces and directories16 May 2026@rxchange$0Swap subscribers with complementary AI newsletters. Trust-first, niche-targeted, fully automated.SEO and content, AI agents and chat15 May 2026@subloop$0Swap subscribers with curated writers in your niche and earn for every new reader you bring. Built for solopreneur & AI newsletter writers.SEO and content, AI agents and chat15 May 2026@floqtrade$0Indie finance writers swap 500-subscriber chunks with perfectly matched peers. No cold outreach, no guesswork. Pure audience alignment.Email and outreach, Finance and investing14 May 2026@nichepact$0Automatically swap subscribers with complementary newsletters. Automated matching, niche-aware, zero effort.SEO and content, Marketplaces and directories14 May 2026@nxtread$0NxtRead matches AI & productivity Substack writers to swap curated subscriber lists. Get discovered. Earn passive revenue on every click.SEO and content, Marketplaces and directories11 May 2026@bullswap$0BullSwap helps finance, trading, crypto, and side-hustle newsletters grow with clear, trackable subscriber swaps.Finance and investing, SEO and content9 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
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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. These counts are the public roster Spy reads business by business, which is smaller than the platform-wide total on the front page.