How to Build Case Studies for a Cold Email Agency

Case studies are the most powerful sales tool for cold email agencies.

Case study structure

The challenge: What was the client's situation before working with you? What problem were they trying to solve? The approach: What did you do? What infrastructure did you build? What targeting strategy did you use? What messaging did you deploy? The results: Quantified outcomes — reply rates, meetings booked, pipeline generated, revenue closed. The timeline: How quickly did results materialize?

Example case study outline

"{{Client_name}}, a Series B SaaS company selling to enterprise HR teams, came to us with zero outbound pipeline. Their sales team was relying entirely on inbound leads, which had plateaued. We set up 8 domains with 20 accounts using Warm Inboxes infrastructure, built a list of 2,000 VP of People targets, and deployed a 4-email sequence with Level 2 personalization. Results in 90 days: 6.2% reply rate, 3.1% positive reply rate, 42 meetings booked, $380,000 in pipeline generated, $95,000 in closed revenue."

Collecting case studies

Ask clients for permission to share results. Offer to anonymize company names if they prefer. The best time to ask is after a strong month of results — the client is happy and more likely to agree.

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