Find every newsletter in your niche and the person to email

Lettrbase searches Substack, beehiiv, Ghost and Kit, finds who runs each newsletter, checks their email is real, and hands you the list as a spreadsheet.

No credit card needed · Export to CSV or Excel · Cancel anytime

Searching newsletters across

SubstackbeehiivGhostKit

This is what comes back

One search, and every newsletter arrives with the person behind it and a label telling you how sure we are about their address.

lettrbase.com/leads
Search complete

Newsletters about AI and technology

1,482 leads · 30+ categories · Substack, beehiiv, Ghost, Kit

DeleteExport
Leads found1,482
With email1,196
Verified emails948
StatusComplete
The NeuronDaily AI news for business readersPete Huangpete@theneuron.aiSponsorVerified
Ben's BitesAI tools and product launchesBen Tossellben@bensbites.coVerified
Money StuffFinance commentaryMatt Levinemlevine@example.comInferred
Dense DiscoveryDesign, tech and culture weeklyKai Brachkai@densediscovery.comSponsorVerified
How it works

Three steps from a topic to a finished list

No scraping scripts, no virtual assistant, no afternoon lost to browser tabs.

Step 1

Search a topic

Type the niche you care about. Lettrbase looks across Substack, beehiiv, Ghost and Kit at the same time, so you are not opening four directories and a search engine.

Step 2

Get the contact

For each newsletter we go and find who runs it: their email, their LinkedIn and X, and the advertise page if they have one. Addresses are checked before they reach your list.

Step 3

Take the list

Download the whole thing as CSV or Excel, ready to drop into your CRM or sequencer. No copying from browser tabs, no cleaning up afterwards.

TN
The Neuron
beehiiv · AI and technology
Verified
Email
pete@theneuron.ai
LinkedIn
/in/peterhuang
X
@theneurondaily
Advertise page
theneuron.ai/advertise
Subscribers
~512,000
Last published
6 hours ago
Contact lookup

A name and a link is not a lead

Anyone can list newsletters. The work is finding the person who decides on sponsorships, and knowing the address will not bounce.

  • Creator email addresses, checked before you get them
  • LinkedIn and X profiles where they exist
  • The advertise or sponsor page, if the newsletter has one
  • Rough subscriber count and how recently they published
Filters

Cut it down until every row is worth an email

Ten thousand newsletters is noise. Narrow by platform, category, size and how recently they published until what is left is a campaign.

  • 30+ categories, pick as many as you like
  • Keyword search, widened with related terms
  • Published in the last 7 days, 30 days, 3 months, 6 months or a year
  • Set how many leads a search should return
TechnologyFinanceMarketingHealthClimate+26 more
Published in the past 7 days1,204
Past 30 days742
Past 3 months418
2,364 newsletters matchApply filters

Simple, transparent pricing

Start for free and scale as you grow. No hidden fees.

Free
Try it on a real search
$0/mo
250 credits, one time
  • Up to 25 leads
  • Newsletter search
  • CSV export
Starter
One person doing outreach
$29/mo
50,000 credits a month
  • Up to 5,000 leads a month
  • Contact lookup
  • Keyword and date filters
  • CSV and Excel export
Most popular
Agency
A team running campaigns
$49/mo
150,000 credits a month
  • Up to 15,000 leads a month
  • Everything in Starter
  • Verified creator emails
  • Bulk export
  • Priority support
Professional
High-volume prospecting
$79/mo
400,000 credits a month
  • Up to 40,000 leads a month
  • Everything in Agency
  • Highest monthly volume
  • Priority support

Questions people ask

Substack, beehiiv, Ghost and Kit.

Your next sponsor is already publishing

Run one search on the free plan and see what comes back. 250 credits, no card, no call.