Outbound you can check.
Three companies that look like your buyers, with the public evidence, before you pay anything.
For founders of B2B companies with 2 to 50 people. You pay per meeting held; no retainer.
The numbered sources are under the email, with the audit.
We read what Coldproof sells.
We found three companies that look like its buyers:
Promptless1: 5-person YC Winter 2025 team, Show HN got 35 points on 24 February 2026
Kenobi2: 3-person YC Winter 2022 team, Launch HN on 17 December 2025
Ergo3: 9-person team, Sales Development Representative role posted 4 August 2026
The sources for each are on one page: trycoldproof.com/for/coldproof
If you want them written to, Coldproof does it, a person reads every reply, and you pay per meeting held.
Worth a look?
Michael ChenColdprooftrycoldproof.com
What founders say about the tools and agencies they paid.
Public posts, quoted word for word, with the link. Under each, what we do about it.
“most AI SDR tools are just spam cannons with better UI.”
We send 5 to 30 a day per mailbox, and a sentence without a public source does not go.
“whether you get 0 meetings or 20, they already made their money.”
We are paid per meeting held. A meeting that is not held costs you nothing.
“who defines ‘qualified’? if it’s them, they’ll move goalposts.”
You do, in writing, before the first email: the titles, the companies, shows up, has authority, agreed a next step.
“There’s a difference between showing you looked and showing you understood. The first one impresses you. The second one earns the reply.”
Every email opens with one dated public fact about the company and says why it matters to them, or it is not sent.
How it works.
Four steps. Each one is shown on the record the email above was written from, on the how it works page.
We read what you sell and find companies that look like your buyers.
From public pages only: job posts, launches, news, their own sites. Each fact keeps its link and its date.
You see them first.
Three companies, the evidence for each, on a page written for you. Before any email and before any money.
We write to them. An auditor cuts what has no source. A person reads every reply.
Every sentence is checked against the evidence before it can send. Replies are read by a named person within a business day.
A meeting is held. Then you pay.
Qualified and held are defined in writing before the first email. A no-show is never charged.
You pay per meeting held.
No retainer, no setup fee, no package. A meeting that is not held is never paid for. The figure is set in writing before any email.
Three questions founders ask first.
Who decides what counts as a meeting?
You do, before we start: the titles, the company description, held for 15 minutes, a next step agreed. You confirm or dispute within three business days.
What do you need from me?
A 20-minute call, your buyer in one sentence, the titles, the countries, who never to contact, and a yes on each page before it sends. Never your inbox, your passwords or your LinkedIn. What we ask for
What happens when someone replies?
A named person reads it within a business day and answers from a draft the system writes. “Stop” is honoured within two days.
Send us your website. Get three companies that look like your buyers, with the evidence, in two days.
No call needed to see them. A person answers within a business day.
Get your three companies