How I got my first 20 SaaS customers with zero marketing budget
leanfoundr · 2026-02-04 · 3,120 views
Bootstrapped SaaS founder here. Zero marketing budget means cold email or die.
My setup: 10 PuzzleInbox pre-warmed Google Workspace inboxes ($45/month), Instantly starter plan ($30), Apollo free tier. Total: $75 per month.
I targeted 500 prospects per month. Very narrow ICP: Series A B2B SaaS companies with 20-50 employees. Decision maker: Head of Growth or VP Marketing.
Month 1: 0.8% reply rate. Terrible copy. 2 meetings. 0 customers. Month 2: Rewrote everything based on feedback from this community. 2.5% reply rate. 8 meetings. 3 customers. Month 3: Added a case study email to my sequence. 4.1% reply rate. 14 meetings. 7 customers.
After 6 months: 20 paying customers. $8K MRR. All from cold email. Total investment: $450 in infrastructure over 6 months.
Cold email is the ultimate bootstrapper growth channel. The ROI is insane when you get the infrastructure and copy right.
Comments (6)
copycarl · 2026-01-15
the "quick question about [company]" template is still king in my testing. 5% reply rate average across 15+ campaigns. keeping it short and curiosity-driven works.
replykng · 2026-01-16
interesting data. my top performer is actually just the person's first name as the subject line. sounds dumb but consistently gets 4-6% reply rates. people can't resist opening an email that just says their name
sdrgirl · 2026-01-16
I've found that subject lines barely matter compared to your sending reputation. if your infrastructure is solid (good DNS, proper warmup, 15-20 per inbox/day) even a mediocre subject line will land in the primary tab
outboundowen · 2026-01-17
anyone else test lowercase vs title case? I switched to all lowercase subject lines last quarter and my reply rates bumped up noticeably. feels more personal and less like marketing
enterprise_closer · 2026-01-17
for C-suite specifically, subject lines referencing their company or a specific initiative work best. generic ones get filtered by assistants. "saw [company]'s expansion into [market]" has been my top performer
multichannel_m · 2026-01-18
good subject line data. one thing I'd add — always A/B test with at least 200 emails per variant before drawing conclusions. too many people test with 30 emails and think they have a winner