How
hit $4M ARR in 6 months. 42% of it came from cold email. Now: 17% of signups, $6.3M+ ARR
We helped launch RB2B from zero to $4M ARR in 6 months. $1.69M of that ARR was attributed to us at the time. A year later, cold email is still generating $130,405.58 in LTV every month.
Raw, unedited testimonial from Adam Robinson, Founder & CEO
01Executive Snapshot
Executive Snapshot
First 180 Days Performance
Last 90 Days Performance
"I'm ten out of ten. I highly recommend working with Sales Automation Systems. SAS can manage this sort of new way of cold emailing better than anybody can."
Founder CEO / Retention.com & RB2B.com
02Who is RB2B?
Who is ?
RB2B turns anonymous B2B website traffic into named people in real time.
They identify U.S. visitors by person: name, title, LinkedIn, and sometimes email. When person-level data isn't available, data partners fill in the company.
Hot leads go straight to Slack, a CRM, or a webhook, so the team can act while the intent is fresh.
Free plan and paid tiers. It's built for fast, personalized outreach on top of the stack you already run.
03The Problem
The Problem & What Was at Stake
RB2B was launching a first-of-its-kind tool that identifies visitors by person, in real time. The team had elite demand gen in house, but modern cold email is its own game: deliverability, domain reputation, sequencing, and compliance at scale. They hired us to own the channel so they could stay on the product.
What was at stake:
- Miss the launch window, lose first-mover mindshare
- Leak high-intent visitors with no fast, compliant outreach
- Slow PMF feedback, which delays ARR and momentum
Net: they kept building. We ran cold email end to end, which cut their time, effort, and risk and raised the odds it worked.
04The Mechanism
The Mechanism: Our Game Plan
Phase 1: Launch
Deliverability-First Infrastructure
- Multi-domain setup, rotation, reputation management
- Redundancy across Gmail/Outlook/SMTP
Founder-Voice Messaging
- Read hundreds of Adam's posts, then shipped 40+ short variants to find what landed.
Three Revenue Engines
Waitlist Activation (6% of Total Revenue)
Adam's brand had pent-up demand sitting on a new domain. We built the cold email infrastructure and converted the list without burning his brand new primary domain.
Inbound-Led Outbound (15% of Total Revenue)
"Saw you on our site via RB2B. Did you have questions?" 10.4% conversion into sign-ups.
Pure Cold (21% of Total Revenue)
Scaled classic outbound with AI automation. 1M+ sends.
Results
- 17% of all signups
- 30% positive replies
- $1.69M ARR attributed (42%), from $0→$4M ARR in 6 months
Phase 2: The Pause
Infrastructure Maintenance
- We kept the engine running while their product retooled. No hand-holding needed.
- Kept the fleet warm: we put domains on warm-up networks, pulled burned assets, rotated in fresh backups, spread sending across Gmail, Outlook, and SMTP, and watched health so it could relaunch clean.
Phase 3: The Relaunch
3x Volume & Expansion
- Scaled to 300,000 emails a month. The target is 1M a month
- Now testing verticals beyond AI and SaaS: manufacturing, professional services, and others
- Still managing everything. Adam doesn't even have to hop on calls with us
05Timeline & Milestones
Timeline & Milestones
Infrastructure + Messaging Setup
Built deliverability infrastructure and tested messaging variants
Infrastructure + Messaging Setup
Built deliverability infrastructure and tested messaging variants
Launch
RB2B goes live with full cold email support
Launch
RB2B goes live with full cold email support
Rapid Growth Phase
250K+ sends | 17% of signups | 30% positive reply rates
Rapid Growth Phase
250K+ sends | 17% of signups | 30% positive reply rates
RB2B hits $0->$4M ARR in only 6 months
$1.69M ARR directly attributed from Sales Automation Systems email campaigns
RB2B hits $0->$4M ARR in only 6 months
$1.69M ARR directly attributed from Sales Automation Systems email campaigns
Pause
RB2B paused all outbound to retool the product before adding more volume. We kept the cold email infrastructure maintained and warm.
Pause
RB2B paused all outbound to retool the product before adding more volume. We kept the cold email infrastructure maintained and warm.
Relaunch
Cold email systems back online. Campaigns launched right away and hit the same conversion rates as the launch a year earlier.
Relaunch
Cold email systems back online. Campaigns launched right away and hit the same conversion rates as the launch a year earlier.
$6.3M ARR & Growing
15.3% of signups still come from cold email. We're testing new verticals beyond AI and SaaS.
$6.3M ARR & Growing
15.3% of signups still come from cold email. We're testing new verticals beyond AI and SaaS.
06The Proof
The Proof
Floor-to-ceiling proof. Newer > older. Numbers > vibes.
Revenue Growth
From $0 to $6.3M ARRRB2B publishes their revenue metrics publicly. You can check the live numbers yourself at rb2b.baremetrics.com.
SnapshotOne Month of Results (Month 21)
Attribution During Phase 1
No BS Numbers
Campaign Stats
High Volume
Additional Resources
The full case study, on video:
Adam's second testimonial, on YouTube:
07Common Questions
Common Questions
The objections we hear most
08Results That Matter
Results That Matter
09Ready to Replicate?