Danny Leffel

CEO, Crew

Danny Leffel is currently the CEO & co-founder of Crew, a messaging and productivity app designed for mobile workforces. He previously founded Yardsellr, a service that operated on top of Facebook and Twitter to augment these services and provide the marketplace-specific functionality so that items could be bought and sold in the social feeds of users. During his time as the CEO at Yardsellr, Danny raised $16M from Tiger Global, Accel Partners and Harrison Metal and helped the company grow to 50 employees. Prior to Yardsellr, he co-founded InGameNow, and served as the VP of Business Development at VideoSurf, a computer-vision technology company turned video search engine that Microsoft acquired in 2011 for $100M. From 2004 to 2007, Danny served as the manager at eBay Business. Danny graduated from Trinity University in 1997.

Articles by Danny Leffel

Austin Tech Week 2025 Recap

Mucker Capital hosted two powerful days of programming during Austin Tech Week, bringing together founders, operators, and growth leaders to share real-world insights from the startup trenches. Across four sessions,...

LA Tech Week 2025 Day 3 Recap: AI Search – Wednesday Oct 15

After two packed days exploring AI startup building and go-to-market growth, Day 3 of LA Tech Week shifted focus to the evolving world of AI Search, how new AI technologies...

LA Tech Week 2025 Day 2 Recap: Startup Growth – Tuesday Oct 14

After a packed AI Building Day, we continued LA Tech Week with Startup Growth Day, a full schedule of sessions focused on go-to-market strategy, founder journeys, and scaling startups in...

LA Tech Week 2025 Day 1 Recap: AI Building – Monday Oct 13

We hosted three full days of events during LA Tech Week, each one focused on helping founders learn, connect, and build with the latest in AI and startup growth. Day...

Using Customer Feedback to Build a Product that Customers Will Love

Customer feedback is the lifeblood of successful product development, but many startups struggle with collecting, validating, and prioritizing the constant stream of input from users, advisors, and internal teams. In...

How Shaun Merritt Vibe-Coded Karrot.ai As A Solo Builder

I recently had the opportunity to chat with Shaun Merritt, cofounder and CTO of Karrot.ai, a LinkedIn ABM tool. Shaun was kind enough to share a comprehensive breakdown of how...