Sergei Rin

Sergei Rin

coin.im B2B direct mail decision-makers
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About

I’m building coin.im, a B2B direct-mail system for reaching the people who can actually make the decision. My work sits at the intersection of market research, decision-maker identification, direct-response copy, physical mail, and campaign execution. I’m especially interested in B2B acquisition, direct response, outbound, positioning, and finding better ways to turn cold markets into real conversations.

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Maker History

  • Market Scan
    Market ScanMarket research with a source for every line
    Oct 2026
    • 🎉
    Joined Product HuntJanuary 23rd, 2026

Forums

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4h ago

Market Scan - Market research with a source for every line

Send a company name or a website. Market Scan returns who buys, who competes for the same money and which markets have a real reason to buy: ranked hypotheses, company types and job titles with headcounts, letters and ads for each market. Every fact links to its page. We ran it on our own site: 20 hypotheses, 18 competitors, 31 sources. The full scan is $600. Ten more jobs run on the same machine, and Claude, Codex or your script can order a scan through the API.
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