NewThe ManyPI MCP Server is now live

Build your B2B email list

Bought lists go stale fast. Describe the companies you sell to, and ManyPI builds the list from a 600M+ lead database and the live web, verified.

Join 1.700+ growing companies

Berkeley
Cornell University
Supercent
Codeway

Any industry, any area

Name the kind of company and where. The agent finds the ones that exist today and the people who run them.

Straight from the source

Every lead keeps a note of where it came from, and anything found on the web is read the moment you ask.

Every address checked

Each email is checked against the receiving mail server before a campaign can use it.

No duplicates

The same company found twice is merged, so nobody gets your first email twice.

Should you buy a B2B email list?

Usually not. A bought list was built before you got it, so a share of the addresses have already gone dead, and the same list has typically been sold to other senders who've mailed it before you. Both push bounce and spam rates up, and those land on your domain, not the vendor's.

Is it legal to email a bought list?

It depends on where your recipients are, and this isn't legal advice. In the EU and the UK you need a lawful basis for every address and have to tell people where you got their data, which a bought list rarely lets you do. In Germany, commercial email usually needs prior consent even between businesses. In the US, CAN-SPAM allows B2B cold email with a working opt-out. Check the rules for each market you contact.

What does a list built with ManyPI contain?

One row per company that fits your brief, with the decision makers ManyPI found, their roles, their email addresses once verified, and the source each lead came from. Business phone numbers come through where a public listing publishes them.

Can I build a list by industry and location?

Yes, that's the usual brief: a type of company, a place, and anything else that matters, like size, whether they're hiring, or whether they have a website. Local businesses come from Google Maps as well as the wider web.

Try the Google Maps scraper

Questions

We already know your next customer

Describe your ideal customer. ManyPI finds validated leads, reaches out, and turns emails into sales.