Sign InFrom a name and a domain
to a verified inbox
Stop guessing emails and stop paying for bounces. Upload your prospects, and we'll find and verify the real, deliverable address for each one — then watch those companies for the moment they're worth contacting.
How it works
Upload your list
Drop in a CSV of first names, last names and company domains. That's it — no formatting gymnastics.
We find the email
Our engine finds each person's real work email from just their name and company — no manual digging, no spreadsheets.
We verify them live
Each address is checked in real time — valid, catch-all, or invalid — so you know exactly what you're getting.
Clean, deliverable emails
Download a CSV of only the addresses that actually exist. Ready to plug straight into your outreach.
Built for teams that hate bouncing
Credit-smart by design
You only pay for results. Your budget goes to real, deliverable emails — never to dead ends.
Pinpoint accuracy
We find the exact address that lands — fast, and without the noise.
Real verification
Live deliverability checks separate confirmed inboxes from catch-all domains and dead addresses.
Developer API
One endpoint, your own key. Wire it into Clay, your CRM, or any tool in minutes.
Knowing who to email is half of it.
Knowing when is the other half.
The same message lands very differently the week a company raises money, switches tools or starts hiring. MailFlyr watches your target accounts for those moments and tells you the day they happen — so you reach out while the window is open.
Create a monitor
Upload a CSV of the companies you care about and tick the signals worth watching. That list becomes a monitor.
Pick how often it runs
Immediately, hourly, daily or weekly. Run it once for a snapshot, or leave it watching indefinitely.
We watch, you get told
Every scan reports only what CHANGED since the last one — so you see new events, not the same list again.
Act on it
Open the monitor's dashboard, export the feed, or have new signals pushed straight into your own tools.
Every signal we track
Twenty-seven kinds of signal, read from thirteen independent public sources and grouped by what the company is actually doing.
The SEC filing companies submit when they raise private capital — often before any press release.
The registration a company files to go public.
An SH01 at Companies House, filed after issuing new shares. The UK equivalent of a Form D.
A headline indicating they raised.
Worldwide press, catching regional and non-English coverage.
Far more roles posted in the last 30 days than the month before — usually growth or new funding.
The same role, same location, advertised repeatedly over weeks — they are struggling to fill it.
A city we have not seen them hire in before — a new office or market.
Their mail provider changed — an IT migration in progress.
A new tool is now authorised to send email as them, revealing adoption of Klaviyo, HubSpot, Outreach and the like.
A tool they used to authorise is gone — possible churn away from that vendor.
They changed applicant-tracking system — they are re-tooling how they hire.
A tool now running on their website that was not there at the last check.
Something they used before is gone — a switch or a cancellation.
A fresh subdomain appearing in public certificate logs — app., shop., docs. — a new product surface.
A mobile app we had not seen before: a new channel and a real investment.
Press indicating a launch.
They launched publicly — they are in growth mode right now.
They now have active ads in Meta's public library — a fresh push, and a budget behind it.
Campaigns have ended or paused.
The advance notice large employers must file with the state before cutting jobs.
Press indicating layoffs or restructuring.
A new executive arrived or one left — a fresh person to win over.
A new partnership or integration announced.
A new office, market or facility.
A major disclosed event: an acquisition, an executive change, big news.
Their mobile app has not been updated in a long time — a deprioritised product, and an opening.
What you get with it
A dashboard per monitor
Each monitor gets its own view: how many signals, which companies, and a breakdown by category — so different target lists never blur together.
Honest attribution
Every signal says how we know. Seen on the company's own domain is marked Direct; matched by company name in a public source is marked Name match, so you can confirm before acting. We never dress up a maybe as a fact.
Jobs and technologies
The postings behind the hiring signals, searchable by company, role, seniority, location and the tools each posting mentions — plus a leaderboard of the technologies your market is actually buying.
Webhooks
Push new signals into Zapier, Make, your CRM or your own endpoint the moment they are detected. Only new events are ever sent — never a repeat.
A signals API
Query any company's live signal state from your own code with a single call, and build the timing into whatever you already run.
Public sources only
Everything comes from official filings, public certificate logs, ad libraries, app stores, job boards and the press. Nothing scraped from behind a login.
A note on how this works: the first scan of a company records where things stand today, so you are not flooded with old news. From then on you are told what changed. Signals that are dated events in their own right — hiring pace, layoff notices, Product Hunt launches — report immediately.
One API. Every tool.
Generate your key and call the same engine from Clay, your CRM, or your own scripts. Send a name and a domain, get back a verified email.
curl -X POST https://your-domain/api/find \
-H "Authorization: Bearer YOUR_KEY" \
-d '{"people":[{"firstName":"John","lastName":"Doe","domain":"acme.com"}]}'Ready to fill your pipeline?
Create an account and find your first verified emails in minutes.
Get Started