What happens when high-growth startups hit the ceiling with digital? They turn to the physical world. In this episode, Greg Wise and Charlie Riley sit down with Mike Gunderson, founder of Gundir and PostReminder, to explore why more marketers are rediscovering direct mail.

Mike shares how he grew his agency from solo consultancy to a 30-person team working with some of the biggest consumer and B2B brands in the U.S. He explains how offline tactics like direct mail and out-of-home aren't legacy channels—they’re precision tools for real engagement. With a focus on targeting, testing, and marrying physical formats with digital follow-ups, Mike lays out a clear path for making these so-called “old school” tactics work smarter, not louder.

👤 Guest Bio

• Mike Gunderson is the founder of Gundir (formerly Gunderson Direct), a direct marketing agency that helps B2B and consumer brands scale through targeted direct mail. He also founded PostReminder, a tool that connects physical advertising moments—like mail and billboards—to digital reminders that drive action when the time is right.

📌 What We Cover

• Why high-growth startups are turning to real-world marketing when digital plateaus
• How direct mail builds brand awareness—even if it’s tossed
• The targeting capabilities that make modern mail campaigns precise and measurable
• Lessons from working with brands like Square and SoFi on direct mail
• Why scale matters: 5,000 pieces won’t cut it—think 150,000 to 500,000
• How direct mail and out-of-home can work together in an ABM strategy
• Mike’s advice for dipping your toe in direct mail with retargeting postcards
• How attribution works—and doesn’t work—when it comes to physical media
• Why the physical world isn’t going anywhere, and why that's a good thing

🔗 Resources Mentioned

• Gundir.com – Download the 2025 Direct Mail Best Practices Book
• PostReminder.com – Set digital reminders from physical ads
• Companies mentioned: Square, SoFi, Meta
• Scrappy ABM Podcast