Almost everyone buys the same lead lists from the same two or three vendors, and then wonders why reply rates are flat. The lists are stale and everyone is hitting them. Meanwhile a lot of genuinely good leads sit in public data that nobody bothers to parse. This week I shipped a batch of small scrapers for exactly these sources, so here is the map.
App and plugin developers
Every app store and plugin directory exposes developer contact details, because users need a way to reach support. The Google Play store, the Apple App Store, the Shopify App Store, and the WordPress plugin directory all publish a developer email or support link on the listing. Search by keyword or category and you have a targeted list of people who already ship software in your niche.
Open source maintainers
The npm registry and the PyPI index both publish maintainer contact info. If you sell developer tools, supply chain security, or DevRel services, package authors are a captive, reachable market, and the registries hand you their public email with no guessing.
Companies that are hiring
Hiring is the strongest buying signal there is. A company posting twenty roles is spending money and feeling pain. The Hacker News Who is Hiring thread is a monthly goldmine, and applicant tracking systems like Greenhouse and Lever expose a company's open roles directly. Parse the roles, infer the pain, time your outreach.
Funded startups
SEC Form D filings list private fundraises the day they happen, with the company, the amount, and named executives. A company that just raised has budget and urgency. That is a warmer lead than anything in a static database, and it is public record.
Niche operators
Podcast hosts publish an owner email in their RSS feed. Steam lists the studio behind every game. Y Combinator publishes its batches. None of these are in a normal sales database, which is exactly why they convert.
The pattern
Every one of these is the same idea: a public source that already pairs a contact with a buying signal, parsed at the origin so it is fresher than any resold list. You run it, you pay per result, and you skip the subscription.
I put these on Apify at https://apify.com/scrapemint, and I keep notes and new drops in the Discord at https://discord.gg/Ed2VNSHbr.
What is the most underused public lead source you have found?
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