Personalized cold email for people who already have their contacts

You already have
the contacts.
We write the emails.

Import your list. Catalyst writes personalized emails that sound like you — not like AI. Review, approve, send from your own Gmail. Know the second someone reads it.

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200+
Personalized emails in minutes
1-click
CSV import to personalized emails
100%
Sounds like you wrote it
The problem

You have the list.
The writing kills you.

You know exactly who you're selling to. You've built your contact list, done your research, organized your notes.
But writing 200 individualized emails? That takes days — and most of them end up sounding like everyone else's.

Bringing your own list isn't a limitation — it's the whole point. Catalyst is built for people who already know their contacts. You did the hard part. We do the writing.

How it works

Six steps. Zero templates.

No prompts to write. No merge fields to fill in. Upload your list and Catalyst handles the rest.

📋

Import your contacts

Drop in your CSV. Any format — name, company, role, LinkedIn, website, notes, custom columns. Organize contacts into campaigns to keep outreach clean and trackable.

✍️

AI writes individualized emails

Every email is written from scratch using your prospect's actual data — not templates. Add notes like "met at trade show, interested in bulk pricing" and Catalyst weaves them in naturally. Not as a merge tag. As a real sentence.

👀

Review & approve

Every draft lands in your review queue. Edit, rewrite, or approve in bulk. Three options: AI rewrite, style-guided revision, or write your own. Nothing sends without your sign-off.

📧

Send from YOUR email

Emails go out from your own Gmail or Outlook address — your name, your domain, your sender reputation. Prospects reply directly to you. No shared sending infrastructure, no deliverability risk.

🔔

Get instant alerts

Real-time push notifications the second a prospect opens your email. Browser alerts and email notifications — so you can follow up while you're top of mind, not three days later.

📅

Schedule follow-ups

Set custom follow-up intervals per campaign. Catalyst auto-generates fresh follow-up messages — not copy-paste resends. Prospects get a new email that moves the conversation forward.

✦ Signature Feature

The notes field changes everything.

Drop a note like "met at trade show, interested in bulk pricing" and Catalyst writes an email that references it naturally. Not as an insert. Not as a merge tag. As a real sentence that sounds like you remembered.

Your CSV
Name Company Your Notes
Sarah K. BuildCo met at NRF, bulk pricing
James T. PivotHQ replied to LinkedIn post
Maria L. GrowthLab referral from Dan C.
Generated Email — Sarah
To: sarah@buildco.io
Hi Sarah,

Enjoyed chatting at NRF last month — I've been thinking about what you mentioned around volume pricing for your team.

We've helped a few companies at your scale get meaningful discounts when they move past 50 seats. Worth a quick call to see if the math works?
✓ Written from your notes
What you get

Built for serious outreach.

Everything you need to run a real campaign — from first send to closed deal.

🎤

Voice Matching Coming Soon

Catalyst learns your writing style — cadence, word choice, how you open. Emails that sound like you drafted them, not like AI drafted them for you.

🔔

Real-Time Read Receipts Live

Instant browser push notifications and email alerts the moment a prospect opens. Follow up while you're top of mind — not three days after the window closed.

📅

Follow-Up Scheduling Live

Set custom reminder intervals per campaign. Catalyst generates fresh follow-up messages on schedule — not the same email resent. Each one moves the conversation forward.

📁

Campaign Organization Live

Group contacts into campaigns. Run separate outreach tracks — by list, event, product line, or anything else. Track performance across campaigns in one dashboard.

✏️

3-Option Email Editing Live

For every draft: ask Catalyst to rewrite it, guide the revision with style notes, or write your own from scratch. Full control at every step.

🔒

CAN-SPAM + 2FA Security Live

Every email includes a compliant unsubscribe footer. Your account is protected with two-factor authentication. Built to send at scale, built to stay out of trouble.

Live preview

What the review dashboard looks like

Import
Review Drafts
Send
Writing 3 of 47 emails...
Sarah K.
BuildCo
Ready
James T.
PivotHQ
Ready
Maria L.
GrowthLab
Writing...
Derek P.
Stackhouse
Queued
Priya N.
Luminary
Queued
Approve & Queue
Edit Draft
Skip
Who it's for

You already have the list.
You just need the emails.

Catalyst is built for people who already know who they're reaching out to. Bring your contacts — we handle the writing.

Without Catalyst
With Catalyst
200 emails = 3 days of writing
200 emails = 20 minutes
Copy-paste with find & replace
Every email written from scratch
Notes sit unused in a spreadsheet
Notes become the best line in the email
No idea who opened until they reply
Instant alert the second they open
Follow-ups are the same email, resent
Fresh follow-up, auto-generated, on schedule
Pricing

Simple. No surprises.

Early access pricing — locks in before the price increases. Start free, no card required for trial.

⚡ Early Access
$ 49 / month

Locked-in rate. Rate increases as features expand — yours stays at $49.

🎁 3-day free trial — no credit card required to start
Start Free Trial

Your contacts are waiting.
Stop writing one by one.

Import your list. Catalyst handles the writing. You handle the replies.

Start Free Trial Book a 15-min demo →