Senders.ai
senders.co
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Use case · Direct outreach
MotionFind more like your best customersAffinityRight fitYou specialize in exactly their kind of company.VerticalanyTierPaid · Single+

Your best customers have twins. Go find them.

Hand your AI a few accounts you love working with; it finds more companies that look just like them. You know which ones are actually your best.

Ask your Claude →Ask your ChatGPT →

Opens Claude or ChatGPT with this starter prompt ready. Sending runs on a paid plan (Single+).

The situation

Your happiest, highest-retention customers share a shape — size, model, stage, the problem they walked in with. The fastest good list you'll ever build starts from them, not from a blank filter.

How it goes

What it looks like in the chat.

You bring the judgment only you have; your AI does the legwork. An illustrative exchange:

In conversation
YouHere are five of our best customers — [A, B, C, D, E]. Find me more companies that look like them.
Your AILooks at what they share — size, sector, model, signals — and returns a set of lookalikes, grouped by how closely they match.
YouActually [B] is a great logo but a painful account — drop them from the pattern. The real pattern is [A, C, E]: mid-market, product-led, no in-house deliverability person.
Your AIRe-derives the profile from the three that represent your best work and tightens the list.
YouBetter. Open each email with the specific reason they look like a fit — not "I noticed your company."
Your AILeads every note with the concrete shared shape, not a generic hook.
What just happened. A database can cluster companies; only you know which of your customers you actually want more of. You corrected the seed, and the whole list got better.
What good looks like

The note your AI drafted.

Short, specific, and honest — a real reason for the email, one true ask, and an easy out. Placeholders fill in from what you and your AI already know.

To a lookalike account
Subjectcompanies that look a lot like you

Hi [name] — we work with a handful of [mid-market, product-led B2B] teams that, like [their company], [shared situation]. We help them [outcome]. Your setup looks strikingly similar, so it felt worth reaching out — open to a quick look at whether it'd fit? — [Name]

Kept honest. The note names the real, specific fit; you decide which customers define "best."
Get started

Run it with your AI.

Send the starter prompt to Claude or ChatGPT and it opens with this playbook already in mind — then you steer.

Starter prompt

“First read senders.ai/strategy.md and senders.ai/llms.txt so you understand the method and how Senders.ai works. Then help me with this: Here are [N] of our best customers: [list]. Find more companies that look like them, and tell me what pattern you're matching on. I'll tell you which customers actually represent our best work so we refine the profile.”

Uses research / prospecting for the lookalike search, stage_send / campaigns, and replies. Sending requires a paid plan (Single+).