Flow Boost AIBook a call

We run your cold outbound — and the systems that turn replies into revenue.

Done-for-you cold email infrastructure that books meetings, plus the sales automations that turn those meetings into closed deals. One partner. Two compounding systems.

30 minutes. Real diagnosis of your GTM motion.

Three things kill outbound for most B2B teams.

Cold email is broken.

Most agencies set up a campaign and hope. Mailboxes burn. Copy goes stale. Reply rates crater. Nobody iterates because nobody's measuring the right things.

Your sales process can't scale with replies.

Booking 50 meetings a month is useless if follow-ups are missed, if teams lose track of the deal, or never get a brief before the call.

You're paying for tools you don't fully use.

Apollo. Clay. n8n. Email Bison. Each one costs $30-$600/mo... all of them require expertise to operate.

Service 01 — Cold Email Engine

Cold email, engineered.

We track and iterate on more signals than anyone in the market. Your campaigns get smarter every week.

What we measure on every campaign

  • Inbox placement (main vs spam) — we recycle burned mailboxes weekly
  • SPF / DKIM / DMARC re-verification across every sending domain
  • Domain age + reputation per inbox
  • Bounce rate by list source — surfaces and kills bad data feeds fast
  • Offer-type performance against a running control
  • Copy length × seniority of the recipient
  • Sender persona (CEO vs SDR; social-proofed vs cold)
  • Cadence (touches per week, days between)
  • Send-time testing (day of week × hour of day, per recipient timezone)
  • Subject line × reply rate × meeting rate
  • Personalization depth × reply rate (generic vs medium vs deep)
  • Reply rate by ICP segment (industry × company size × role)
  • First-touch vs follow-up reply distribution per sequence
  • Negative reply categorization (not interested / wrong person / timing / no budget)
  • Show rate on booked meetings — the count that actually matters
How we work

From first call to first booked meeting — fast.

Discovery call

30 minutes. We diagnose your GTM motion and tell you what we'd build — even if you don't hire us.

Audit + plan

We map your current pipeline, your ICP, your offer, and propose the cold email + automations stack that fits.

Build (1-2 weeks)

Domains warmed, mailboxes provisioned, sequences live, automations deployed into your stack.

Weekly iteration

We measure every week, rewrite copy every two. Your campaigns get sharper until we find the winner.

Why teams trust us with their pipeline.

We measure more than anyone.

Inbox placement, sender persona, copy length, cadence, offer performance — eight signals tracked weekly per campaign. Most agencies look at open and reply rate and call it a day.

Tools included.

$3,000+/month of stack — Email Bison, Apollo, Clay, n8n, AI enrichment, 100+ inboxes — bundled into your plan. You never pay for a license or learn a dashboard.

Built for iteration, not setup.

Anyone can launch a campaign. We're built to run them — weekly measurement, bi-weekly copy rewrites — until your reply rates and meeting rates compound.

Your sales team doesn't fight brittle lead flow.

We set up automations so the sales process is seamless — your reps sell instead of hunting for the lost record.

FAQ

Questions before the call.

How fast until we see meetings booked?

At 25k emails/month we've set meetings as early as 3 days into a campaign.

What happens to the mailboxes if I cancel?

Mailboxes are owned and managed by us. Clients never retain ownership — we maintain sender reputation across our entire client base, which is what keeps deliverability working long-term.

Do you guarantee a number of meetings?

We don't promise a number — we promise the process. Every campaign goes through weekly measurement and bi-weekly copy iteration until we find the offer that lands. The offer is the single biggest lever in cold email performance, and we iterate on it until your reply and meeting rates compound.

What's the contract length?

Billed quarterly. Cancel at the end of any quarter.

Do you write the copy, or do we?

We write and iterate every line of copy in your campaigns at every stage. Your payment is trust in our ability to produce results — and every piece of copy that goes live is shared with you ahead of time.

Which CRMs and sales tools do you integrate with?

All of them — to the degree their APIs allow. Salesforce, HubSpot, Pipedrive, Outreach, SalesLoft, Gong, Apollo, Clay, you name it. If it has an API, we plug into it.

Can you take over an existing cold email setup?

Yes. We audit what you have, migrate what's worth keeping, and rebuild what isn't. Most existing setups have deliverability or copy issues we can fix in week one.

Let's talk

Let's see if we're a fit.

30 minutes. We'll diagnose your GTM motion and tell you exactly what we'd build for you — whether you hire us or not.

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