01
Signals over static lists
The engine sources accounts from hiring posts, funding events, and tech-stack changes that match the ICP — so every prospect has a reason to be contacted this week, not whenever the list was exported.
B2B SaaS company (Series A) · Lead Generation
4× more qualified demos per rep
Two SDRs were expected to feed four AEs, and pipeline showed it. We built an outbound engine that sources on-profile accounts from live signals, writes personalization grounded in actual research, and handles replies — so the humans only enter at 'interested.'
- 2.1×
- reply rate vs. previous templates
- <5 min
- speed-to-lead on inbound
- 0
- domain reputation incidents
/ 01 — The problem
What was breaking.
Each SDR spent roughly 70% of their week researching accounts and writing emails, producing about 40 genuinely personalized touches a day between them.
A previous attempt with template blasts had cratered reply rates and flirted with spam-folder exile — leadership was rightly wary of 'AI outreach' meaning 'more spam, faster.'
/ 02 — The build
How we approached it.
02
Personalization with receipts
Before writing, the system reads the prospect's site, recent news, and role context. Messages are constrained to specific, verifiable observations — if there's nothing genuinely relevant to say, the prospect is skipped. Quality gates before volume.
03
Deliverability as infrastructure
Warmed domains, conservative throttles, rotation, and suppression lists — architected to protect sender reputation first and scale second.
Timeline6 weeks from ICP definition to full-volume operationStackClayApolloSmartleadClaudeHubSpotn8n
/ 03 — The results
What changed.
- Qualified demos per rep quadrupled within two months of launch.
- Reply rates ran 2.1× the old template campaigns — grounded specificity beats volume.
- Inbound leads now get an intelligent first touch in under five minutes, around the clock; speed-to-lead stopped being a lost-deal reason in win/loss reviews.
- SDRs now spend their day in conversations. One was promoted to AE; neither was replaced.
“The emails are better-researched than what we wrote by hand, because no human has twenty minutes per prospect. It books meetings while we sleep and hasn't embarrassed us once.”
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